Arie Blank - Academia.edu (original) (raw)
Papers by Arie Blank
Microsatellite primers were developed and optimized for patchouli (Pogostemon cablin) to characte... more Microsatellite primers were developed and optimized for patchouli (Pogostemon cablin) to characterize the patchouli Active Germplasm Bank of Universidade Federal de Sergipe. Creation of a genomic library for patchouli enabled the design of 12 microsatellite primers. Six of these microsatellites were polymorphic, revealing two well-defined groups of individuals that possess exclusive alleles. The data allowed us to characterize the patchouli active Germplasm Bank, identify its genetic diversity, and provide new information for researching this species
A batata doce é uma espécie pertencente a família Convolvulaceae, originária da América Central e... more A batata doce é uma espécie pertencente a família Convolvulaceae, originária da América Central e do Sul. As condições de cultivo têm grande influência na produção, sendo que a determinação do tempo de colheita varia de acordo com a cultivar, com a região de cultivo e com a forma de consumo (in natura ou industrial). O objetivo deste trabalho foi avaliar o desempenho de clones de batata-doce (Ipomoea batatas L.) cultivados em três regiões do estado de Sergipe para produção de amido e etanol. Testou-se, em delineamento de blocos casualizados, 31 genótipos de batata doce em três município do Estado de Sergipe. As características analisadas foram: teor de matéria seca de raízes (RDMC), teor de amido nas raízes (SC), rendimento de raízes (SY), rendimento de etanol (EY) e rendimento de etanol por tonelada de raiz (EYR). Os valores de EY variaram de 5910,39 a 8516,12 L.ha-1, de 5141,85 a 6937,63 L ha-1 e de 5829,62 a 8211,77 L ha-1 para São Cristóvão, Malhador e Canindé de São Francisco, ...
Revista Gestão, Inovação e Tecnologias, 2014
Schinus terebinthifolius is present in Brazilian coastal regions whose therapeutic importance is ... more Schinus terebinthifolius is present in Brazilian coastal regions whose therapeutic importance is due to the presence of the essential oil, its properties anarcadiaceae comes in order to find new compounds for use in the control of pests and diseases being studied. The objective of this study was to analyze the chemical composition and test the antifungal activity of the oil of S. terebinthifolius in controlling pathogens Colletothrichum gloeosporioides Penz and Lasiodiplodia theobromae (Patouillard) Griffon & Maublanc, the actions in vitro of different concentrations on mycelial growth pathogen. The essential oil of four different materials S. terebinthifolius, dry leaves (FS), fresh leaves (FF), green seeds (SV) and mature seeds (SM), were obtained by hydro-distillation. The oils were tested at different concentrations and evaluated over time, in order to compare their performances like antifungal. The experimental design was randomized and the experiment in split plot. Assessments were made at intervals of hours measuring the mycelial growth in centimeters, by diameter of the colonies and the results expressed as percentage of inhibition. The oil from the seeds and green mature seeds showed the highest percentage in compound limonene, while the fresh and dry leaves compound δ-3-carene. In antifungal test the pathogens both L. theobromae, C. gloeosporioides, as shown sensibility to essential oils, with the highest observed in the green seed oil with 100% fungal inhibition, which proves the effectiveness of antifungal activity of S. terebinthifolius oil.
1 Recebido para publicação em: 24/08/2004. Aprovado em: 06/01/2005. 2 Eng. Agrônomo, D.Sc., Prof.... more 1 Recebido para publicação em: 24/08/2004. Aprovado em: 06/01/2005. 2 Eng. Agrônomo, D.Sc., Prof. do Dep. de Engenharia Agronômica/UFS, SE, afblank@ufs.br 3 Estudante de Agronomia da UFS, bolsista de IC do CNPq 4 Bióloga, M.Sc., Profa. do Dep. de Engenharia Agronômica/UFS, SE 5 Eng. Agrônomo, D.Sc., bolsista DCR do CNPq, Profa. do Dep. de Engenharia Agronômica/UFS, SE O manjericão é uma planta usada para fins culinários, aromáticos e medicinais. Apesar dessa importância, poucos são os trabalhos sobre a exigência nutricional do manjericão para cultivo em larga escala na região Nordeste do Brasil. Assim, o presente trabalho teve como objetivo avaliar o efeito da adubação orgânica e mineral e dos horários de colheita na produção de biomassa e óleo essencial de manjericão ( Ocimum basilicum L.) cv. Genovese. O ensaio foi conduzido no Campus Rural da UFS, em condições de campo. O delineamento utilizado foi o de blocos ao acaso, em esquema fatorial 5 x 3, com três repetições, compreendend...
Horticultura Brasileira, 2017
A batata-doce [ Ipomoea batatas (L.) Lam.] e tecnicamente uma planta perene, plantada e explorada... more A batata-doce [ Ipomoea batatas (L.) Lam.] e tecnicamente uma planta perene, plantada e explorada como anual. Sendo assim, a identificacao do periodo de cultivo e de clones de batata-doce e importante para um melhor aproveitamento dessa cultura, tanto na alimentacao humana e animal, como para producao de etanol. O objetivou-se com esse trabalho avaliar o desempenho de clones de batata-doce cultivados em diferentes periodos de cultivo de cultivo. Foram testados nas parcelas tres periodos de cultivo de cultivo (3, 5 e 7 meses), e nas subparcelas, cinco clones de batata-doce (acessos IBP-007, IBP-038, IBP-075, IBP-079 e IBP-149), e a cultivar Brazlândia Rosada. As variaveis analisadas foram: teor de materia seca de raiz, amido e amilose e rendimento de amido e etanol. O clone IPB-007 apresentou elevados valores para rendimento de amido (6,63 t.ha -1 ) e etanol (4.379 L.ha -1 ). Ja para teor de materia seca de raiz (38,32%) e amido (26,70%) e rendimento de etanol (176,26 em L.t -1 ), o ...
![Research paper thumbnail of Influência de métodos de desinfestação e tipos de explantes no estabelecimento in vitro de acessos de vetiver [ Chrysopogon zizanioides (L.) Roberty]](https://attachments.academia-assets.com/112139985/thumbnails/1.jpg)
](Ornamental Horticulture, 2007
O objetivo deste trabalho foi o de avaliar o efeito de metodos de desinfestacao e tipos de explan... more O objetivo deste trabalho foi o de avaliar o efeito de metodos de desinfestacao e tipos de explantes no estabelecimento in vitro de acessos de vetiver [ Chrysopogon zizanioides (L.) Roberty].
Boletin Latinoamericano y del Caribe de Plantas Medicinales y Aromaticas, 2021
The objective was to evaluate the production and composition of lavender essential oil, simultane... more The objective was to evaluate the production and composition of lavender essential oil, simultaneously at open field and greenhouse, in spring-summer season, under different types of fertilization. Each cultivation system was considered an experiment (field and greenhouse), and in both, the experimental design used was randomized blocks, with five treatments, being fertilization with nutrient source - 100% mineral (100% M), 100% organic (100% O), 100% organomineral (100% OM), 50% organomineral (50% OM), and without fertilization (control), and three repetitions. Better performance and productivity of Lavandula dentata is related to respectively 100% OM and 50% OM fertilization in the field and greenhouse. The essential oil content does not differ between cultivation systems and kind of fertilizers, and the majorities compounds were 1.8-cineol, fenchone and camphor.
![Research paper thumbnail of Influence of storage temperatures and storage time of dry leaves on patchouli [Pogostemon cablin (Blanco) Benth.] essential oil](https://attachments.academia-assets.com/112139942/thumbnails/1.jpg)
](Bioscience Journal, 2020
Patchouli [Pogostemon cablin (Blanco) Benth.] is a plant of the family Lamiaceae, widely used as ... more Patchouli [Pogostemon cablin (Blanco) Benth.] is a plant of the family Lamiaceae, widely used as an essential oil in the cosmetics and perfumery industry. This study aimed to evaluate the influence of storage time and temperature of dry leaves on the patchouli essential oil content and chemical composition. The experiment was performed in a completely randomized design in a 6x2x2 factorial scheme, testing storage time (0, 1, 2, 4, 8, and 16 weeks) and temperature (28°C and 33°C) of dry leaves of two patchouli genotypes (POG-015 and POG-021). The variables essential oil content and chemical composition, and the identification of fungus during storage were evaluated. Results showed that the storage significantly influenced the essential oil content. Patchoulol was identified as the major compound in both genotypes, ranging from 55.05% to 68.77% (POG-15) and from 52.83% to 64.06% (POG-021). Based on the results of patchoulol, dry leaves of both genotypes (POG-015 and POG-021) can be s...
Archivos de Zootecnia, 2011
O carrapato bovino Riphicephalus microplus (Acari: Ixodidae) constitui um dos grandes problemas e... more O carrapato bovino Riphicephalus microplus (Acari: Ixodidae) constitui um dos grandes problemas enfrentado pelos pecuaristas de várias partes do mundo. No Brasil este ectoparasita causa grandes prejuízos à bovinocultura devido ao processo de hematofagia e pela transmissão de agentes patogênicos nos animais hospedeiros. Diante dessa situação os produtores normalmente aplicam carrapaticidas organossintéticos de forma indiscriminada. Este método normalmente resulta em: intoxicação dos animais e dos aplicadores, resíduos de carrapaticidas nos produtos de origem animal, resistência dos carrapatos aos carrapaticidas químicos e poluição ambiental. Uma alternativa para diminuir esses problemas é uso de biocarrapaticidas de origem botânica. Os pesticidas botânicos são produtos naturais derivados do metabolismo secundário das plantas. Esse metabolismo produz uma grande diversidade de compostos com ação carrapaticida que podem ser explorados através do uso de óleos essenciais ou como modelo pa...
Crop Breeding and Applied Biotechnology, 2018
The objective of this work was to analyze the content and the chemical diversity of the essential... more The objective of this work was to analyze the content and the chemical diversity of the essential oil (EO) of 22 Eplingiella fruticosa plants collected in Sergipe, Brazil. EOs were obtained from dry leaves by hydrodistillation and analyzed by GC/MS-FID. The mean EO contents ranged from 0.75 to 1.28%. The compounds found in greater amounts formed two clusters. The first cluster consisted of 15 plants and presented bicyclogermacrene (6.29-16.24%), spathulenol (7.59-15.23%), β-caryophyllene (5.77-12.97%), and caryophyllene oxide (5.00-11.90%) as major compounds. The second cluster consisted of seven plants and had 1,8-cineole (8.96-15.51%), α-pinene (5.46-13.77%), and camphor (4.08-11.40%) as major compounds. Results indicate chemical variability of the EO among E. fruticosa plants from the state of Sergipe. This information may assist in conservation strategies by providing data for investigation of biological activities of EO.
Bioscience Journal, 2017
The aim of this work was to develop an in vitro conservation protocol for Lippia alba that involv... more The aim of this work was to develop an in vitro conservation protocol for Lippia alba that involved mineral oil and to study the leaf anatomy of L. alba genotypes in in vitro and ex vitro environments. In vitro conservation involved five genotypes; LA-13 and LA-57 (carvone chemotype); LA-22 (linalool chemotype); and LA-29 and LA-44 (citral chemotype). Each genotype was treated with mineral oil, with water, and a control at 18°C and 23°C. Survival (%), shoot height (cm) and leaf color were assessed at 180 and 270 days. The genotypes with the best in vitro conservation outcomes (LA-13 and LA-57) were used to study the anatomy of the leaves. Midrib thickness, leaf blade thickness, adaxial and abaxial cuticles and the number of glandular and tector trichomes were assessed. A temperature of 18°C was optimal for the conservation of genotypes of the carvone chemotypes. The explants were short and had green leaves. This was especially true for LA-57, whose height did not exceed 2.0 cm. At 270 days, the LA-13 and LA-57 genotypes continued to have green and viable leaves, especially LA-57, which had the lowest mean height. Field plants of the carvone chemotype had thicker midribs, leaf blades, and cuticles and had more trichomes. The LA-57 genotype had the most glandular and tector trichomes.
Horticultura Brasileira, 2010
Genótipos de manjericão (Ocimum basilicum L.) apresentam diferentes teores, rendimentos e composi... more Genótipos de manjericão (Ocimum basilicum L.) apresentam diferentes teores, rendimentos e composições químicas de óleos essenciais. Fatores influenciam na produção do óleo essencial de manjericão, como a cultivar plantada e o método de cultivo. O estudo dos parâmetros genéticos tem sido ferramenta útil na identificação de genótipos superiores. Este trabalho teve o objetivo de estimar alguns parâmetros genéticos associados ao comportamento produtivo de seis populações de manjericão nos anos agrícola 2004/05 e 2005/06. As características massa seca de folha + inflorescência e rendimento de óleo essencial apresentaram grande variabilidade por forte influência dos anos estudados. Já o teor de linalol manteve sua produtividade estável ao longo dos dois anos. Teor e rendimento de óleo essencial e teor de linalol no óleo essencial apresentaram herdabilidades altas na análise conjunta, indicando controle genético e grande possibilidade de serem transmitidas para as gerações futuras. Na anál...
Revista Brasileira de Plantas Medicinais, 2009
A importância fitoterápica e, consequentemente, econômica da Melissa officinalis tem contribuído ... more A importância fitoterápica e, consequentemente, econômica da Melissa officinalis tem contribuído para expansão do cultivo. O óleo essencial das folhas é formado por constituintes químicos que podem ser largamente empregados na indústria farmacêutica por possuírem atividades antioxidativa, antivirótica e sedativa. Assim sendo, objetivou-se no presente trabalho avaliar o efeito de combinações de doses de adubação orgânica com biofertilizante comercial e esterco bovino no cultivo de Melissa officinalis. Os tratamentos foram constituídos de quatro doses de biofertilizante orgânico (Vitassolo®) e esterco bovino, sendo estes de 0, 30.000, 60.000 e 90.000 L ha-1. Os tratamentos foram arranjados no delineamento experimental blocos casualizados no fatorial 4x4, com 3 repetições. As características avaliadas foram altura de planta, rendimento de folha, teor e rendimento de óleo essencial. As maiores doses de esterco bovino resultaram em um maior desenvolvimento das plantas, em relação às mesm...
Química Nova, 2010
Recebido em 30/7/09; aceito em 18/2/10; publicado na web em 10/6/10 STORAGE INFLUENCE OF DRIED LE... more Recebido em 30/7/09; aceito em 18/2/10; publicado na web em 10/6/10 STORAGE INFLUENCE OF DRIED LEAVES ON PATCHOULY (Pogostemon cablin Benth.) ESSENTIAL OIL. The aim of this work was to evaluate the influence of five storage times of dry leaves of two patchouli genotypes on its essential oil content and chemical composition. Harvest was realized four months after planting. Storage influenced essential oil content of genotype POG-002. Patchoulol was the majority compound. Storage of dry leaves increased significatively the content of the compounds α-bulnesene and germacrene A of genotype POG-021 and longicanfenilone, pogostol and patchoulol of POG-002. However, storage reduced significatively the content of the compounds cicloseichelene, β-cariofilene, α-guaiene, acifilene and α-bulnesene of the essential oil of genotype POG-002.
Scientia …, 2010
O teor, rendimento e caracterização química do óleo essencial de Hyptis pectinata foram avaliados... more O teor, rendimento e caracterização química do óleo essencial de Hyptis pectinata foram avaliados quanto a diferentes horários de colheita (8:00, 12:00 e 16:00 horas), utilizando-se folhas frescas e secas. A secagem ou não das folhas e os diferentes horários de colheita, não tiveram influência no teor e rendimento do óleo essencial, tornando-se viável a colheita em qualquer horário do dia, podendo-se utilizar folhas frescas ou secas. Os sesquiterpenóides são os constituintes predominantes (75,0-83,0%), sendo a calamusenona o componente majoritário para todas as amostras (31,0-48,0%), seguido de cariofileno (7,0-15,0%).
Industrial Crops and Products, 2012
Introduction: Essential oil of Iraqi growing Ocimum basilicum (Thia basil) was studied for their ... more Introduction: Essential oil of Iraqi growing Ocimum basilicum (Thia basil) was studied for their chemical components investigation and antioxidant activity. Methods: Essential oils of leaves and stems of Ocimum basilicum were collected using hydrodistillation by Clevenger apparatus. Components of the collected essential oils were examined by the techniques such as Gas chromatography and Gas chromatography-mass spectrometry. Results: The analysis showed that the major components of essential oils were linalool (48.69%), 1,8-cineole (14.00%), trans-α-bergamotene (8.23%) and eugenol (6.64%). The antioxidant investigation was achieved using 1,1-diphenyl-2-picrylhydrazyl (DPPH) as a radical scavenger and bleaching of β-carotene/linoleic assay. The essential oil displayed strong inhibition with 110.8% against autoxidation of linoleic acid, while the scavenging of DPPH radical gave a value of IC 50 145.35 µg/mL. Conclusion: The results signify that essential oils of O. Basilicum could be used for pharmaceutical studies and preservative in the food industry. This is the first study of the essential components of new cultivate of Thai basil in Iraq.
Agriculture
Ants belonging to the genus Solenopsis are highly significant invasive pests worldwide. The contr... more Ants belonging to the genus Solenopsis are highly significant invasive pests worldwide. The control of these insects has historically relied on the use of synthetic insecticides, which, unfortunately, has led to a range of ecological repercussions. In light of these challenges and the limited availability of registered products for managing these pests, our study set out to synthesize and assess the insecticidal properties of carvacrol derivatives. The lethal and sublethal effects caused by these derivatives were compared to the essential oil of Lippia gracilis (50.7% carvacrol) and to the base molecule—carvacrol. Carvacryl benzoate was the most toxic derivative to Solenopsis sp., with an LD50 of 3.20 μg/ mg. This compound was about 2 and 7.6 times more toxic than carvacrol at the doses needed to kill 50 and 90% of populations, respectively. The workers of Solenopsis sp. showed a rapid reduction in survival when exposed to carvacrol (LT50 = 8.43 h) and carvacryl benzoate (LT50 = 8.8...
Cadernos de Agroecologia, May 27, 2020
Inseticidas botânicos de Myrcia lundiana sobre Acromyrmex balzani Botanical inseticides of Myrcia... more Inseticidas botânicos de Myrcia lundiana sobre Acromyrmex balzani Botanical inseticides of Myrcia lundiana on leaf-cutting ants ANDRADE,
Microsatellite primers were developed and optimized for patchouli (Pogostemon cablin) to characte... more Microsatellite primers were developed and optimized for patchouli (Pogostemon cablin) to characterize the patchouli Active Germplasm Bank of Universidade Federal de Sergipe. Creation of a genomic library for patchouli enabled the design of 12 microsatellite primers. Six of these microsatellites were polymorphic, revealing two well-defined groups of individuals that possess exclusive alleles. The data allowed us to characterize the patchouli active Germplasm Bank, identify its genetic diversity, and provide new information for researching this species
A batata doce é uma espécie pertencente a família Convolvulaceae, originária da América Central e... more A batata doce é uma espécie pertencente a família Convolvulaceae, originária da América Central e do Sul. As condições de cultivo têm grande influência na produção, sendo que a determinação do tempo de colheita varia de acordo com a cultivar, com a região de cultivo e com a forma de consumo (in natura ou industrial). O objetivo deste trabalho foi avaliar o desempenho de clones de batata-doce (Ipomoea batatas L.) cultivados em três regiões do estado de Sergipe para produção de amido e etanol. Testou-se, em delineamento de blocos casualizados, 31 genótipos de batata doce em três município do Estado de Sergipe. As características analisadas foram: teor de matéria seca de raízes (RDMC), teor de amido nas raízes (SC), rendimento de raízes (SY), rendimento de etanol (EY) e rendimento de etanol por tonelada de raiz (EYR). Os valores de EY variaram de 5910,39 a 8516,12 L.ha-1, de 5141,85 a 6937,63 L ha-1 e de 5829,62 a 8211,77 L ha-1 para São Cristóvão, Malhador e Canindé de São Francisco, ...
Revista Gestão, Inovação e Tecnologias, 2014
Schinus terebinthifolius is present in Brazilian coastal regions whose therapeutic importance is ... more Schinus terebinthifolius is present in Brazilian coastal regions whose therapeutic importance is due to the presence of the essential oil, its properties anarcadiaceae comes in order to find new compounds for use in the control of pests and diseases being studied. The objective of this study was to analyze the chemical composition and test the antifungal activity of the oil of S. terebinthifolius in controlling pathogens Colletothrichum gloeosporioides Penz and Lasiodiplodia theobromae (Patouillard) Griffon & Maublanc, the actions in vitro of different concentrations on mycelial growth pathogen. The essential oil of four different materials S. terebinthifolius, dry leaves (FS), fresh leaves (FF), green seeds (SV) and mature seeds (SM), were obtained by hydro-distillation. The oils were tested at different concentrations and evaluated over time, in order to compare their performances like antifungal. The experimental design was randomized and the experiment in split plot. Assessments were made at intervals of hours measuring the mycelial growth in centimeters, by diameter of the colonies and the results expressed as percentage of inhibition. The oil from the seeds and green mature seeds showed the highest percentage in compound limonene, while the fresh and dry leaves compound δ-3-carene. In antifungal test the pathogens both L. theobromae, C. gloeosporioides, as shown sensibility to essential oils, with the highest observed in the green seed oil with 100% fungal inhibition, which proves the effectiveness of antifungal activity of S. terebinthifolius oil.
1 Recebido para publicação em: 24/08/2004. Aprovado em: 06/01/2005. 2 Eng. Agrônomo, D.Sc., Prof.... more 1 Recebido para publicação em: 24/08/2004. Aprovado em: 06/01/2005. 2 Eng. Agrônomo, D.Sc., Prof. do Dep. de Engenharia Agronômica/UFS, SE, afblank@ufs.br 3 Estudante de Agronomia da UFS, bolsista de IC do CNPq 4 Bióloga, M.Sc., Profa. do Dep. de Engenharia Agronômica/UFS, SE 5 Eng. Agrônomo, D.Sc., bolsista DCR do CNPq, Profa. do Dep. de Engenharia Agronômica/UFS, SE O manjericão é uma planta usada para fins culinários, aromáticos e medicinais. Apesar dessa importância, poucos são os trabalhos sobre a exigência nutricional do manjericão para cultivo em larga escala na região Nordeste do Brasil. Assim, o presente trabalho teve como objetivo avaliar o efeito da adubação orgânica e mineral e dos horários de colheita na produção de biomassa e óleo essencial de manjericão ( Ocimum basilicum L.) cv. Genovese. O ensaio foi conduzido no Campus Rural da UFS, em condições de campo. O delineamento utilizado foi o de blocos ao acaso, em esquema fatorial 5 x 3, com três repetições, compreendend...
Horticultura Brasileira, 2017
A batata-doce [ Ipomoea batatas (L.) Lam.] e tecnicamente uma planta perene, plantada e explorada... more A batata-doce [ Ipomoea batatas (L.) Lam.] e tecnicamente uma planta perene, plantada e explorada como anual. Sendo assim, a identificacao do periodo de cultivo e de clones de batata-doce e importante para um melhor aproveitamento dessa cultura, tanto na alimentacao humana e animal, como para producao de etanol. O objetivou-se com esse trabalho avaliar o desempenho de clones de batata-doce cultivados em diferentes periodos de cultivo de cultivo. Foram testados nas parcelas tres periodos de cultivo de cultivo (3, 5 e 7 meses), e nas subparcelas, cinco clones de batata-doce (acessos IBP-007, IBP-038, IBP-075, IBP-079 e IBP-149), e a cultivar Brazlândia Rosada. As variaveis analisadas foram: teor de materia seca de raiz, amido e amilose e rendimento de amido e etanol. O clone IPB-007 apresentou elevados valores para rendimento de amido (6,63 t.ha -1 ) e etanol (4.379 L.ha -1 ). Ja para teor de materia seca de raiz (38,32%) e amido (26,70%) e rendimento de etanol (176,26 em L.t -1 ), o ...
Ornamental Horticulture, 2007
O objetivo deste trabalho foi o de avaliar o efeito de metodos de desinfestacao e tipos de explan... more O objetivo deste trabalho foi o de avaliar o efeito de metodos de desinfestacao e tipos de explantes no estabelecimento in vitro de acessos de vetiver [ Chrysopogon zizanioides (L.) Roberty].
Boletin Latinoamericano y del Caribe de Plantas Medicinales y Aromaticas, 2021
The objective was to evaluate the production and composition of lavender essential oil, simultane... more The objective was to evaluate the production and composition of lavender essential oil, simultaneously at open field and greenhouse, in spring-summer season, under different types of fertilization. Each cultivation system was considered an experiment (field and greenhouse), and in both, the experimental design used was randomized blocks, with five treatments, being fertilization with nutrient source - 100% mineral (100% M), 100% organic (100% O), 100% organomineral (100% OM), 50% organomineral (50% OM), and without fertilization (control), and three repetitions. Better performance and productivity of Lavandula dentata is related to respectively 100% OM and 50% OM fertilization in the field and greenhouse. The essential oil content does not differ between cultivation systems and kind of fertilizers, and the majorities compounds were 1.8-cineol, fenchone and camphor.
Bioscience Journal, 2020
Patchouli [Pogostemon cablin (Blanco) Benth.] is a plant of the family Lamiaceae, widely used as ... more Patchouli [Pogostemon cablin (Blanco) Benth.] is a plant of the family Lamiaceae, widely used as an essential oil in the cosmetics and perfumery industry. This study aimed to evaluate the influence of storage time and temperature of dry leaves on the patchouli essential oil content and chemical composition. The experiment was performed in a completely randomized design in a 6x2x2 factorial scheme, testing storage time (0, 1, 2, 4, 8, and 16 weeks) and temperature (28°C and 33°C) of dry leaves of two patchouli genotypes (POG-015 and POG-021). The variables essential oil content and chemical composition, and the identification of fungus during storage were evaluated. Results showed that the storage significantly influenced the essential oil content. Patchoulol was identified as the major compound in both genotypes, ranging from 55.05% to 68.77% (POG-15) and from 52.83% to 64.06% (POG-021). Based on the results of patchoulol, dry leaves of both genotypes (POG-015 and POG-021) can be s...
Archivos de Zootecnia, 2011
O carrapato bovino Riphicephalus microplus (Acari: Ixodidae) constitui um dos grandes problemas e... more O carrapato bovino Riphicephalus microplus (Acari: Ixodidae) constitui um dos grandes problemas enfrentado pelos pecuaristas de várias partes do mundo. No Brasil este ectoparasita causa grandes prejuízos à bovinocultura devido ao processo de hematofagia e pela transmissão de agentes patogênicos nos animais hospedeiros. Diante dessa situação os produtores normalmente aplicam carrapaticidas organossintéticos de forma indiscriminada. Este método normalmente resulta em: intoxicação dos animais e dos aplicadores, resíduos de carrapaticidas nos produtos de origem animal, resistência dos carrapatos aos carrapaticidas químicos e poluição ambiental. Uma alternativa para diminuir esses problemas é uso de biocarrapaticidas de origem botânica. Os pesticidas botânicos são produtos naturais derivados do metabolismo secundário das plantas. Esse metabolismo produz uma grande diversidade de compostos com ação carrapaticida que podem ser explorados através do uso de óleos essenciais ou como modelo pa...
Crop Breeding and Applied Biotechnology, 2018
The objective of this work was to analyze the content and the chemical diversity of the essential... more The objective of this work was to analyze the content and the chemical diversity of the essential oil (EO) of 22 Eplingiella fruticosa plants collected in Sergipe, Brazil. EOs were obtained from dry leaves by hydrodistillation and analyzed by GC/MS-FID. The mean EO contents ranged from 0.75 to 1.28%. The compounds found in greater amounts formed two clusters. The first cluster consisted of 15 plants and presented bicyclogermacrene (6.29-16.24%), spathulenol (7.59-15.23%), β-caryophyllene (5.77-12.97%), and caryophyllene oxide (5.00-11.90%) as major compounds. The second cluster consisted of seven plants and had 1,8-cineole (8.96-15.51%), α-pinene (5.46-13.77%), and camphor (4.08-11.40%) as major compounds. Results indicate chemical variability of the EO among E. fruticosa plants from the state of Sergipe. This information may assist in conservation strategies by providing data for investigation of biological activities of EO.
Bioscience Journal, 2017
The aim of this work was to develop an in vitro conservation protocol for Lippia alba that involv... more The aim of this work was to develop an in vitro conservation protocol for Lippia alba that involved mineral oil and to study the leaf anatomy of L. alba genotypes in in vitro and ex vitro environments. In vitro conservation involved five genotypes; LA-13 and LA-57 (carvone chemotype); LA-22 (linalool chemotype); and LA-29 and LA-44 (citral chemotype). Each genotype was treated with mineral oil, with water, and a control at 18°C and 23°C. Survival (%), shoot height (cm) and leaf color were assessed at 180 and 270 days. The genotypes with the best in vitro conservation outcomes (LA-13 and LA-57) were used to study the anatomy of the leaves. Midrib thickness, leaf blade thickness, adaxial and abaxial cuticles and the number of glandular and tector trichomes were assessed. A temperature of 18°C was optimal for the conservation of genotypes of the carvone chemotypes. The explants were short and had green leaves. This was especially true for LA-57, whose height did not exceed 2.0 cm. At 270 days, the LA-13 and LA-57 genotypes continued to have green and viable leaves, especially LA-57, which had the lowest mean height. Field plants of the carvone chemotype had thicker midribs, leaf blades, and cuticles and had more trichomes. The LA-57 genotype had the most glandular and tector trichomes.
Horticultura Brasileira, 2010
Genótipos de manjericão (Ocimum basilicum L.) apresentam diferentes teores, rendimentos e composi... more Genótipos de manjericão (Ocimum basilicum L.) apresentam diferentes teores, rendimentos e composições químicas de óleos essenciais. Fatores influenciam na produção do óleo essencial de manjericão, como a cultivar plantada e o método de cultivo. O estudo dos parâmetros genéticos tem sido ferramenta útil na identificação de genótipos superiores. Este trabalho teve o objetivo de estimar alguns parâmetros genéticos associados ao comportamento produtivo de seis populações de manjericão nos anos agrícola 2004/05 e 2005/06. As características massa seca de folha + inflorescência e rendimento de óleo essencial apresentaram grande variabilidade por forte influência dos anos estudados. Já o teor de linalol manteve sua produtividade estável ao longo dos dois anos. Teor e rendimento de óleo essencial e teor de linalol no óleo essencial apresentaram herdabilidades altas na análise conjunta, indicando controle genético e grande possibilidade de serem transmitidas para as gerações futuras. Na anál...
Revista Brasileira de Plantas Medicinais, 2009
A importância fitoterápica e, consequentemente, econômica da Melissa officinalis tem contribuído ... more A importância fitoterápica e, consequentemente, econômica da Melissa officinalis tem contribuído para expansão do cultivo. O óleo essencial das folhas é formado por constituintes químicos que podem ser largamente empregados na indústria farmacêutica por possuírem atividades antioxidativa, antivirótica e sedativa. Assim sendo, objetivou-se no presente trabalho avaliar o efeito de combinações de doses de adubação orgânica com biofertilizante comercial e esterco bovino no cultivo de Melissa officinalis. Os tratamentos foram constituídos de quatro doses de biofertilizante orgânico (Vitassolo®) e esterco bovino, sendo estes de 0, 30.000, 60.000 e 90.000 L ha-1. Os tratamentos foram arranjados no delineamento experimental blocos casualizados no fatorial 4x4, com 3 repetições. As características avaliadas foram altura de planta, rendimento de folha, teor e rendimento de óleo essencial. As maiores doses de esterco bovino resultaram em um maior desenvolvimento das plantas, em relação às mesm...
Química Nova, 2010
Recebido em 30/7/09; aceito em 18/2/10; publicado na web em 10/6/10 STORAGE INFLUENCE OF DRIED LE... more Recebido em 30/7/09; aceito em 18/2/10; publicado na web em 10/6/10 STORAGE INFLUENCE OF DRIED LEAVES ON PATCHOULY (Pogostemon cablin Benth.) ESSENTIAL OIL. The aim of this work was to evaluate the influence of five storage times of dry leaves of two patchouli genotypes on its essential oil content and chemical composition. Harvest was realized four months after planting. Storage influenced essential oil content of genotype POG-002. Patchoulol was the majority compound. Storage of dry leaves increased significatively the content of the compounds α-bulnesene and germacrene A of genotype POG-021 and longicanfenilone, pogostol and patchoulol of POG-002. However, storage reduced significatively the content of the compounds cicloseichelene, β-cariofilene, α-guaiene, acifilene and α-bulnesene of the essential oil of genotype POG-002.
Scientia …, 2010
O teor, rendimento e caracterização química do óleo essencial de Hyptis pectinata foram avaliados... more O teor, rendimento e caracterização química do óleo essencial de Hyptis pectinata foram avaliados quanto a diferentes horários de colheita (8:00, 12:00 e 16:00 horas), utilizando-se folhas frescas e secas. A secagem ou não das folhas e os diferentes horários de colheita, não tiveram influência no teor e rendimento do óleo essencial, tornando-se viável a colheita em qualquer horário do dia, podendo-se utilizar folhas frescas ou secas. Os sesquiterpenóides são os constituintes predominantes (75,0-83,0%), sendo a calamusenona o componente majoritário para todas as amostras (31,0-48,0%), seguido de cariofileno (7,0-15,0%).
Industrial Crops and Products, 2012
Introduction: Essential oil of Iraqi growing Ocimum basilicum (Thia basil) was studied for their ... more Introduction: Essential oil of Iraqi growing Ocimum basilicum (Thia basil) was studied for their chemical components investigation and antioxidant activity. Methods: Essential oils of leaves and stems of Ocimum basilicum were collected using hydrodistillation by Clevenger apparatus. Components of the collected essential oils were examined by the techniques such as Gas chromatography and Gas chromatography-mass spectrometry. Results: The analysis showed that the major components of essential oils were linalool (48.69%), 1,8-cineole (14.00%), trans-α-bergamotene (8.23%) and eugenol (6.64%). The antioxidant investigation was achieved using 1,1-diphenyl-2-picrylhydrazyl (DPPH) as a radical scavenger and bleaching of β-carotene/linoleic assay. The essential oil displayed strong inhibition with 110.8% against autoxidation of linoleic acid, while the scavenging of DPPH radical gave a value of IC 50 145.35 µg/mL. Conclusion: The results signify that essential oils of O. Basilicum could be used for pharmaceutical studies and preservative in the food industry. This is the first study of the essential components of new cultivate of Thai basil in Iraq.
Agriculture
Ants belonging to the genus Solenopsis are highly significant invasive pests worldwide. The contr... more Ants belonging to the genus Solenopsis are highly significant invasive pests worldwide. The control of these insects has historically relied on the use of synthetic insecticides, which, unfortunately, has led to a range of ecological repercussions. In light of these challenges and the limited availability of registered products for managing these pests, our study set out to synthesize and assess the insecticidal properties of carvacrol derivatives. The lethal and sublethal effects caused by these derivatives were compared to the essential oil of Lippia gracilis (50.7% carvacrol) and to the base molecule—carvacrol. Carvacryl benzoate was the most toxic derivative to Solenopsis sp., with an LD50 of 3.20 μg/ mg. This compound was about 2 and 7.6 times more toxic than carvacrol at the doses needed to kill 50 and 90% of populations, respectively. The workers of Solenopsis sp. showed a rapid reduction in survival when exposed to carvacrol (LT50 = 8.43 h) and carvacryl benzoate (LT50 = 8.8...
Cadernos de Agroecologia, May 27, 2020
Inseticidas botânicos de Myrcia lundiana sobre Acromyrmex balzani Botanical inseticides of Myrcia... more Inseticidas botânicos de Myrcia lundiana sobre Acromyrmex balzani Botanical inseticides of Myrcia lundiana on leaf-cutting ants ANDRADE,