Orange Research Papers - Academia.edu (original) (raw)

This study, the selective removal of limonin bitterness from Washington navel orange juice by batch adsorption to the Amberlite XAD-16HP and Dowex Optipore L285 was investigated and the determination of some compositional changes that... more

This study, the selective removal of limonin bitterness from Washington navel orange juice by batch adsorption to the Amberlite XAD-16HP and Dowex Optipore L285 was investigated and the determination of some compositional changes that occurred with orange juices debittering using adsorption resins were the primary focus. Amberlite XAD-16HP and Dowex Optipore L285 have been successfully used to reduce bitterness to acceptable levels in Washington navel orange juices. Amberlite XAD-16HP does not have any important negative effects on the quality characteristics of orange juices. However, Dowex Optipore L285 reduces the titratable acidity (TA) in the orange juices and so increases the content of soluble solids contents (SSC), pH value, and ratio accordingly.

Production of ethanol, biogas, pectin and limonene from citrus wastes (CWs) by an integrated process was investigated. CWs were hydrolyzed by dilute-acid process in a pilot plant reactor equipped with an explosive drainage. Hydrolysis... more

Production of ethanol, biogas, pectin and limonene from citrus wastes (CWs) by an integrated process was investigated. CWs were hydrolyzed by dilute-acid process in a pilot plant reactor equipped with an explosive drainage. Hydrolysis variables including temperature and residence time were optimized by applying a central composite rotatable experimental design (CCRD). The best sugar yield (0.41 g/g of the total dry CWs) was obtained by dilute-acid hydrolysis at 150 °C and 6 min residence time. At this condition, high solubilization of pectin present in the CWs was obtained, and 77.6% of total pectin content of CWs could be recovered by solvent recovery. Degree of esterification and ash content of produced pectin were 63.7% and 4.23%, respectively. In addition, the limonene of the CWs was effectively removed through flashing of the hydrolyzates into an expansion tank. The sugars present in the hydrolyzates were converted to ethanol using baker’s yeast, while an ethanol yield of 0.43 g/g of the fermentable sugars was obtained. Then, the stillage and the remaining solid materials of the hydrolyzed CWs were anaerobically digested to obtain biogas. In summary, one ton of CWs with 20% dry weight resulted in 39.64 l ethanol, 45 m3 methane, 8.9 l limonene, and 38.8 kg pectin.

Squash is a type of fruit beverage containing at least 25% fruit juice or pulp and 40-50% total soluble solids, commercially. It also contains about 1.0% acid and 350ppm Sulphur dioxide or 600ppm sodium benzoate. It is diluted before... more

Squash is a type of fruit beverage containing at least 25% fruit juice or pulp and 40-50% total soluble solids, commercially. It also contains about 1.0% acid and 350ppm Sulphur dioxide or 600ppm sodium benzoate. It is diluted before serving. Cane juice is a naturally high energy drink which makes it a healthy alternate to refined sugar added drink. Sugarcane is one of the world's most important sugar crops cultivated in tropical countries like India. Tender coconut is one of the most abundant and naturally occurring resource which is used as food and beverage. The present investigation was carried out to formulate Squash with Sugarcane juice and Coconut water and orange juice, and to evaluate the overall acceptability of squash in prepared three samples comparing with control. We got significant values, the score for colour was found highest in sample B compared with other samples. The score for flavour was found highest in sample B as compared to other samples of Squash. Overall acceptability was observed as highest in sample and is preferred than control. Among different samples of Squash prepared, sample B was more acceptable in terms of its Organoleptic evaluation. The formulated sugarcane Squash is highly preferable to people suffering from urinary infections.

Squash is a type of fruit beverage containing at least 25% fruit juice or pulp and 40-50% total soluble solids, commercially. It also contains about 1.0% acid and 350ppm Sulphur dioxide or 600ppm sodium benzoate. It is diluted before... more

Squash is a type of fruit beverage containing at least 25% fruit juice or pulp and 40-50% total soluble solids, commercially. It also contains about 1.0% acid and 350ppm Sulphur dioxide or 600ppm sodium benzoate. It is diluted before serving. Cane juice is a naturally high energy drink which makes it a healthy alternate to refined sugar added drink. Sugarcane is one of the world's most important sugar crops cultivated in tropical countries like India. Tender coconut is one of the most abundant and naturally occurring resource which is used as food and beverage. The present investigation was carried out to formulate Squash with Sugarcane juice and Coconut water and orange juice, and to evaluate the overall acceptability of squash in prepared three samples comparing with control. We got significant values, the score for colour was found highest in sample B compared with other samples. The score for flavour was found highest in sample B as compared to other samples of Squash. Overall acceptability was observed as highest in sample and is preferred than control. Among different samples of Squash prepared, sample B was more acceptable in terms of its Organoleptic evaluation. The formulated sugarcane Squash is highly preferable to people suffering from urinary infections.

Today, citrus orchards are a major component of the Mediterranean landscape and one of the most important cultivated fruits in the region; however, citrus is not native to the Mediterranean Basin, but originated in Southeast Asia. Here,... more

Today, citrus orchards are a major component of the Mediterranean landscape and one of the most important cultivated fruits in the region; however, citrus is not native to the Mediterranean Basin, but originated in Southeast Asia. Here, the route of the spread and diversification of citrus is traced through the use of reliable historical information (ancient texts, art, and artifacts such as wall paintings and coins) and archaeobotanical remains such as fossil pollen grains, charcoals, seeds, and other fruit remains. These botanical remains are evaluated for their reliability (in terms of identification, archaeological context, and dating) and possible interpretations. Citrus medica (citron) was the first citrus to spread west, apparently through Persia and the Southern Levant (remains were found in a Persian royal garden near Jerusalem dated to the fifth and fourth centuries BC) and then to the western Mediterranean (early Roman period, ' 'third and second centuries BC). In the latter region, seeds and pollen remains of citron were found in gardens owned by the affluent in the Vesuvius area and Rome. The earliest lemon (C. limon) botanical remains were found in the Forum Romanum (Rome) and are dated to the late first century BC/early first century AD. It seems, therefore, that lemon was the second citrus species introduced to the Mediterranean. The contexts of the botanical remains, in relation to elite gardens, show that in antiquity, both citrus and lemon were products representing high social status. Sour orange (C. aurantium), lime (C. aurantifolia), and pummelo (C. maxima) did not reach the Mediterranean until the 10th century AD, after the Islamic conquest. Sweet orange (C. sinesis) was introduced during the second half of the 15th century AD, probably via the trade route established by the Genoese, and later (16th century AD) by the Portuguese. The mandarin (C. reticulata) reached the Mediterranean only in the early 19th century. While citron and lemon arrived in the Mediterranean as elite products, all other citrus fruit most probably spread for economic reasons.

The study aims to examine the effect of transition to the application of IFRS 15: recognition of revenues from contracts with customers in Jordanian telecommunications' companies, as a case study it was conducted in Jordan... more

The study aims to examine the effect of transition to the application of IFRS 15: recognition of revenues from contracts with customers in Jordanian telecommunications' companies, as a case study it was conducted in Jordan Telecommunications Company (Orange) for the period between 2010-2017, The researchers recalculated the revenue of contracts with customers retroactively, and separate the goods' revenues from services' revenues, also calculate the assets from contracts at the end of each interim period for the quarterly progress reports for all periods of study. A number of statistical methods were used; the most important one is descriptive statistics, the natural distribution of data and testing the study hypotheses using the multiple regression equations to identify the effect of independent variables on dependent variables. The most important result of the study showed that there is a statistically significant impact at the level of (α ≤ 0.05) for the application of IFRS 15 as measured by the services' revenue , goods' revenue, and contract assets on total revenues and owner equity, The study recommended urging the telecommunications companies working in Jordan especially Orange to apply IFRS 15 for its impact to achieve transparency in disclosure, and to increase the reliability of accounting measurement of financial reporting.

This article intends to verify through a comparative descriptive analysis the sources of growth of crops sugar cane and citrus fruit in the municipalities that comprise the microregions da Mata Alagoana, Mata, Pernambuco Southern Forest... more

This article intends to verify through a comparative descriptive analysis the sources of growth of crops sugar cane and citrus fruit in the municipalities that comprise the microregions da
Mata Alagoana, Mata, Pernambuco Southern Forest North of Pernambuco and Ribeirão Preto in São Paulo, from Municipal Agricultural Research data from 1990 and 2012 (PAM-IBGE). Use the shift-share method as a means of generating relevant information for verification of specific regional problems. For Pernambuco there is a decay of sugarcane production and substitution by other activities, Alagoas is the State with the highest dependence on sugar cane production, but there is a need for technological improvement in cultivation for survival of culture, and São Paulo, stands out as the largest producer of sugar cane range, taking space from other cultures. In citrus, São Paulo presents industry crisis and its replacement by other cultures. In Alagoas, the citrus faces production problems, given low yield productive and marketing problems, so that there is the development of activities with the cattle and milk competing in the same productive space. Thus, in modern agribusiness
must accompany the productive dynamics on the main trends of innovation, allowing for maintain the competitiveness of sector. The increase in competitiveness, as a result of high productivity and quality, with lower production costs, clearly points to stalkers, guidelines giving sustainability to the
economy.

In order to determine the relation of two bug species of the Leptoglossus genus with the fall of the orange fruits were realized bacteriological and micological tests of the flabellum and tarsi of originating specimens of localities of... more

L'etude proprement archeologique des edifices de spectacles antiques de la Gaule Narbonnaise se heurte aujourd'hui a un probleme majeur : outre les divers amenagements destines en principe a leur rendre leur fonction primitive de... more

L'etude proprement archeologique des edifices de spectacles antiques de la Gaule Narbonnaise se heurte aujourd'hui a un probleme majeur : outre les divers amenagements destines en principe a leur rendre leur fonction primitive de salles de spectacles, leur description ne peut negliger en effet ni les differentes modifications apportees depuis les premieres invasions des Wisigoths et durant tout le Moyen âge, ni les restaurations effectuees depuis le xixe siecle jusqu'a nos jours. De fait, meme si les dernieres interventions se sont voulues « dans le respect de l'esprit de l'antiquite » et meme lorsque les restaurations se sont limitees a de simples consolidations, les unes comme les autres ont participe indeniablement a une certaine transformation de l'edifice. Celle-ci s'est effectuee dans divers contextes selon les epoques, selon les ecoles aussi, et selon la place accordee au monument a la fois dans l'urbanisme d'une ville antique de la provinc...

Water and nitrogen (N) are two key limiting factors in orange (Citrus sinensis) production. The amount and the timing of water and N application are critical, but optimal strategies have not yet been well established. This study presents... more

Water and nitrogen (N) are two key limiting factors in orange (Citrus sinensis) production. The amount and the timing of water and N application are critical, but optimal strategies have not yet been well established. This study presents an analysis of 47 fertigation strategies examined by a coupled soil-crop model. The strategies include 27 main scenarios with a factorial design of 3 irrigation levels (420, 520 and 640 mm, representing 80%, 100% and 120% of water demand), 3 N input levels (100, 200 and 300 kg ha-1) and 3 main N split applications, and 20 additional scenarios testing alternative N split applications, extreme rainfall years (dry and wet) and different soil textures.
The simulations showed that orange yields were strongly influenced by N input and N split applications, but not so much by irrigation. Increasing water and N input led to increased N losses (via leaching and denitrification), and there were significant positive interactions between water and N input with respect to N losses. On average, low N input (100 kg ha-1) led to relatively low N losses (16 kg ha-1) but resulted in low yield (33 ton ha-1, 25% yield reduction). High N input (300 kg ha-1) produced a high yield (43 ton ha-1) but led to large N losses (104 kg ha-1). Optimal N input (200 kg ha-1) significantly reduced N losses (45 kg ha 1) without yield reduction. Importantly, with optimal N input, improving N split applications significantly increased yield by 13% and reduced N losses by 40%, compared to sub-optimal N splits.
Significant interactions between water inputs, N inputs and N split applications in yield and N losses indicate that the optimization of fertigation strategies must consider these three key variables simultaneously. Our results clearly show that over-optimal water and N inputs lead to large water and N losses. Reduced irrigation (80% of water demand) and N input equal to N demand (200 kg ha-1) can significantly reduce N losses without yield reduction. The N split applications should be adjusted to the N demand of the crop during the growing season. Our study focused on a Mediterranean climate, but the methodology and results can be applied to other situations in the world.

Water and nitrogen (N) are two key limiting factors for citrus production. Reported effects of water and N inputs on citrus yield, water use efficiency (WUE) and N use efficiency (NUE) vary greatly, mainly due to differences in cultivars,... more

Water and nitrogen (N) are two key limiting factors for citrus production. Reported effects of water and N inputs on citrus yield, water use efficiency (WUE) and N use efficiency (NUE) vary greatly, mainly due to differences in cultivars, tree age, climate, soil types, and water and N input levels. So far, no systematic analysis has been performed, and as a result, the interactive effects of water and N inputs on yield, WUE and NUE of citrus orchards are unknown. Also, gaps between attainable and actual yields, WUE and NUE have not been established yet. Here, we report on a global meta-analysis of yields, WUE and NUE of citrus production systems, using 1009 observations from 55 studies, conducted in 11 countries. Median citrus yields ranged from 30 to 60 t ha-1, which were in between average global yields (range 10-30 t ha-1) and attainable yields (range 60-90 t ha-1). Median WUE ranged from 2.5 to 5 kg m-3 and median NUE from 150 to 350 kg kg-1. Citrus yields were related to water and N inputs and tree age. Relationships between water and N inputs and yield, WUE and NUE were also analysed for sub-datasets and quantiles, to examine the relationships near the extremes. There were statistical significant interactions between water and N inputs in yield and NUE, but not in WUE. This indicates that studies aiming at the optimization of water and N inputs must consider interactions and optimize water and N inputs simultaneously. Based on our analyses, we estimated that reducing over-optimal irrigation to optimal irrigation may increase citrus yield by 20%, WUE by 30% and NUE by 15%. Similarly, reducing over-optimal N fertilization to optimal N fertilization may increase yield by 10%, WUE by 15% and NUE by 40%. We concluded that there is room for a significant increase in yield, WUE and NUE through the simultaneous optimization of water and fertilizer N inputs via precision fertigation

Homozygous genotypes are valuable for genetic and genomic studies in higher plants. However, obtaining homozygous perennial plants using conventional breeding techniques is currently a challenge because of a long juvenile period, high... more

Homozygous genotypes are valuable for genetic and genomic studies in higher plants. However, obtaining homozygous perennial plants using conventional breeding techniques is currently a challenge because of a long juvenile period, high heterozygosity and the substantial inbreeding depression. In vitro androgenesis has been used to develop haploid and doubled haploid plants. In this study, we report the regeneration of doubled haploid lines of Valencia sweet orange cv. Rohde Red (Citrus sinensis [L.] Osbeck) via anther culture. Anthers at the uninucleate stage were induced and two embryogenic calli were obtained that further regenerated to embryoids (2/400). Plantlets were obtained after transferring the embryoids to a shoot regeneration medium, but were short-lived. Ploidy analysis via both flow cytometry and chromosome counting verified that these two lines were diploids. Additionally, 43 simple sequence repeat (SSR) markers which showed to be heterozygous in the Valencia sweet orange donor line confirmed homozygosity and doubled haploids in the anther-derived lines. Furthermore, analysis of the doubled haploids via cleaved amplified polymorphic sequence (CAPS) markers and target region sequencing confirmed the allelic state of two genes (LCYE and LCYB) involved in the carotenoid biosynthesis of sweet oranges.

A local cultivar of sweet orange namely ‘Agege sweet’ constitutes a larger percentage among many citrus varieties planted in Nigeria, but there is a major setback in terms of extending its post-harvest shelf life. This work was designed... more

A local cultivar of sweet orange namely ‘Agege sweet’ constitutes a larger percentage among many citrus varieties planted in Nigeria, but there is a major setback in terms of extending its post-harvest shelf life. This work was designed to assess the effectiveness of a rhamnolipid coating to preserve the quality attributes of Agege sweet orange fruit during 8 wk ambient storage compared with that of Aloe vera gel. Petri plates were supplied with different treatments (volume per volume, v/v) of Aloe vera gel (0%, 0.5%, 1.0%, 1.5%, 2.0%, 2.5%) or rhamnolipid (0%, 0.25%, 0.5%, 1.0%, 1.5 %, 2.0%) and oranges were inoculated with a spore suspension of P. digitatum NSP01 spores. The solutions of rhamnolipid (2%) and Aloe vera gel (2%) were evaluated for their biocontrol activity on P. digitatum NSP01. The fruits were stored for 8 wk at 25ºC. The lesion area, firmness, and chemical composition were assessed. The oranges coated with Aloe vera gel and rhamnolipid significantly (p < 0.05) prevented loss in firmness, total soluble solids and titratable acidity and reduced the decay caused by P. digitatum NSP01. Therefore, the newly formulated rhamnolipid-Aloe vera edible coating could serve as a permanent substitute for chemical fungicides used in the management of diseases and pests affecting agricultural productivity.

Application of passive modified atmosphere packaging (MAP) for shelf life extension of mixed pineapple slices, mango pieces and orange segments, was evaluated. Fruits of Ananas cv 'Gold', Mango cv 'Keitt' and Orange cv 'Washington Navel'... more

Application of passive modified atmosphere packaging (MAP) for shelf life extension of mixed pineapple slices, mango pieces and orange segments, was evaluated. Fruits of Ananas cv 'Gold', Mango cv 'Keitt' and Orange cv 'Washington Navel' were washed, sanitized, peeled and cut. Minimal processed fruits were packed under 2 different atmospheres, passive (air) and active MAP (70% N 2 , 10 %O 2 , 20 %CO 2), and stored at 10±1 °C with 85±5% RH for 12 days. Changes in package atmosphere composition, weight loss, color, texture, pH, soluble solids, sensory attributes, were evaluated after cutting and at three subsequent stages of storage (the 3 day, 6d, 9d, and the 12 day). Color parameters L* and b* significantly decreased over time in all packaging conditions and L* variation was directly attributed to the translucency phenomenon in the fruit flesh. The pineapple and orange parameters highlighted the best visual score during the storage period, the lowest values of the browning index and the highest scores of all sensory descriptors at each sampling date. Organoleptic attributes have not been influenced by the storage time and no off-flavors were detected in the treated fruit. We conclude that pineapple slices and orange segments can be maintained in excellent condition for up 9 days at 10±1°C following the treatment with active MAP.

BACKGROUND: Orange-fleshed sweetpotato (OFSP) can be used to tackle vitamin A deficiency, a major public health problem in most developing countries. In East Africa, common ways of using sweetpotato include drying and subsequent storage.... more

BACKGROUND: Orange-fleshed sweetpotato (OFSP) can be used to tackle vitamin A deficiency, a major public health problem in most developing countries. In East Africa, common ways of using sweetpotato include drying and subsequent storage. The aim of the study was to investigate the impact of drying and storage on the total carotenoid retention (as an estimate of provitamin A retention) from OFSP.RESULTS: Losses of total carotenoid during drying were generally low (15% or less). Total carotenoid retention in OFSP was not dependent on the type of dryer (solar or sun). Sweetpotato cultivar (Ejumula, Kakamega, SPK004/1, SPK004/1/1, SPK004/6 or SPK004/6/6) had a significant effect on retention in drying (P < 0.05). High percentage losses of total carotenoids were, however, correlated with high moisture content and high carotenoid content in fresh sweetpotato roots. After 4 months' storage at room temperature in Uganda, losses of total carotenoid in dried sweetpotato chips were high (about 70%) and this was not dependent on the use of opaque or transparent packaging.CONCLUSION: Losses of carotenoids during storage were considered to be more of a nutritional constraint to the utilisation of dried sweetpotato than losses occurring during drying. The relationship between characteristics of the cultivars and losses of carotenoids during drying should be taken into account in selection of cultivars for processing. Copyright © 2009 Society of Chemical Industry