Gintarė Juozapaitienė | Vytautas Magnus University (original) (raw)
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Papers by Gintarė Juozapaitienė
2011 m. birželio 9 d. buvo priimtas poveikio aplinkai vertinimo (PAV) įstatymo pakeitimas, kuriuo... more 2011 m. birželio 9 d. buvo priimtas poveikio aplinkai vertinimo (PAV) įstatymo pakeitimas, kuriuo planuojamos ūkinės veiklos (PŪV) poveikio socialinei – ekonominei aplinkai įvertinimas oficialiai įteisintas PAV įstatyme. Šio darbo tikslas - išanalizuoti soc – ekonominio poveikio aplinkai vertinimo svarbą PAV procese ir planuojamos tiesti Vilniaus Šiaurinės gatvės projekte. Tikslui pasiekti buvo išanalizuotos 2006 - 2011 m. Kauno RAAD pateiktos PAV ataskaitos ir atlikta PAV dokumentų rengėjų ir vertintojų apklausa. Taip pat įvertintas planuojamos tiesti Vilniaus Šiaurinės gatvės poveikis soc – ekonominei aplinkai, bei apklaustos įmonės, veikiančios planuojamos tiesti Vilniaus Šiaurinės gatvės nagrinėjamoje teritorijoje. Išanalizavus 2006 – 2011 m. Kauno RAAD pateiktas PAV ataskaitas paaiškėjo, jog poveikis soc – ekonominei aplinkai išsamiai išnagrinėtas tik dvejose iš 10 PAV ataskaitų. Pagrindinis aspektas, išanalizuotas soc – ekonominio poveikio aplinkai vertinimo metu, buvo veiklos...
Agricultural and Food Science, 2019
In studies on plant responses to climate change more attention has been given to aboveground proc... more In studies on plant responses to climate change more attention has been given to aboveground processes although carbon input by plants into the soil is a major flux in the global carbon cycle. The objective of study was to investigate the effects of elevated CO2 and temperature on carbon allocation and partitioning in different parts of plant, soil, and microbial biomass. An experiment was conducted on summer rape (Brassica napus L.) under increased levels of air temperature and atmospheric CO2 in controlled environment chambers. Results showed that the amount of leaf, stem and root carbon statistically significantly increased under elevated CO2 and temperature conditions. Microbial biomass carbon significantly increased by 11.2% and 13.5% under elevated CO2 and elevated CO2 and temperature, respectively, although soil carbon under both treatments decreased. It is concluded that carbon allocation is controlled under different climate conditions; however, elevated CO2 and temperature...
Plant Physiology and Biochemistry, 2019
This study was intended to investigate how an agronomically important crop Brassica napus will be... more This study was intended to investigate how an agronomically important crop Brassica napus will be able to cope with the combined impact of a heatwave (21/14 ºC vs. 33/26 ºC day/night) and drought under ambient or elevated CO 2 (800 vs. 400 µmol mol-1) and to what degree their recovery will be ensured after the stress, when additional CO 2 is also removed. The obtained results revealed that, in the presence of an adequate water supply, B. napus performed well under heatwave conditions. However, drought fully negated all the advantages gained from hotter climate and led to a slower and incomplete recovery of gas exchange and retarded growth after the stress, regardless mitigating the effect of elevated CO 2 during the stress.
Environmental Research, Engineering and Management, 2017
Many berry species are known for their excellent flavor and abundance of healthy compounds posses... more Many berry species are known for their excellent flavor and abundance of healthy compounds possessing antioxidant and other beneficial properties. However, due to a rapid decay after harvesting, the majority of berry crops are processed into juices and other products. Pressing of juice results in large quantities of by-products, called pomace, press-cake or marc. These residues contain various valuable compounds such as polyphenolics, vitamins; however, currently they are used rather inefficiently and in many cases wasted, mainly due to a lack of scientific and technological valorization of their processing methods. This study provides examples of biorefining of black currant (Ribes nigrum), chokeberry (Aronia melanocarpa), raspberry (Rubus idaeus) and European cranberry bush berry (Viburnum opulus) pomaces into high-value functional ingredients by using high pressure and enzyme-assisted extraction/fractionation methods. The residues are further extracted by using pressurized liquids, e.g. water or its mixtures with ethanol while remaining nonsoluble substances are treated with various enzymes to obtain additional water soluble products. The composition and antioxidant properties of the fractions obtained were analysed by chromatography and mass spectrometry while antioxidant properties were evaluated by the batch in vitro assays (DPPH, ABTS, FRAP, ORAC, Folin-Ciocalteu values) and the on-line HPLC-UV-DPPH radical scavenging assay. The results indicate that the fractions isolated from berry pomaces contain valuable bioactive compounds, which might find applications in functional foods, nutraceuticals, cosmetics, and other products. Firstly, lipophilic fractions, consisting mainly of triacylglycerols, were extracted with supercritical carbon dioxide. At optimal conditions, the yields of oily extracts from berries were from 3 to 15 %. These extracts were rich in polyunsaturated fatty acids and tocopherols. Higher polarity fractions were extracted from the residues and the total yield of extracts was up to 80 %. These fractions contained various phytochemicals; most of them were strong antioxidants. Conclusion: the concept of biorefining, which is defined as ‚a sustainable processing of biomass into a spectrum of bio-based products (food, feed, chemicals, materials) and bioenergy (biofuels, power, and/or heat)' may be successfully applied to berry pomaces for the development of high added value functional ingredients; technological and economical aspects of upscaling the processes should be in the focus of future research.
JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT, 2015
In 2011, the Environmental Impact Assessment (EIA) Law amendment was approved and a socio-economi... more In 2011, the Environmental Impact Assessment (EIA) Law amendment was approved and a socio-economic assessment formally became an integrated part of EIA in Lithuania. Therefore, this study examines a socio-economic assessment in the environmental impact statements (EIS) and the perceptions of the EIA experts towards a socio economic assessment. Although formally a socio-economic assessment has been validated only recently, 30% of specialists claimed having conducted a socio-economic assessment in detail prior to the amendments to the law. Thus, the EIS analysis has shown a rather poor consideration of these issues as mainly creation of work places was addressed. The survey has shown that preparation of the EIA documents after the formalisation of a socio-economic assessment would change mainly nominally. The EIA experts working in the private sector were more optimistic than those from state institutions. Reluctance of changes and personal attitudes have to be addressed, especially t...
Environmental and Climate Technologies, 2018
Public participation is one of the conditions for an effective environmental impact assessment. Q... more Public participation is one of the conditions for an effective environmental impact assessment. Quite often public participation is limited to the general public but various organizations, governmental and non-governmental institutions, business enterprises are left aside. The paper analyses the attitudes of different enterprises/organizations with focus on a road construction (Siaurine Street) case in Vilnius, Lithuania in regard to the environmental impact assessment process. The survey indicated that only a very small part of respondents from different enterprises and organizations has been approached in particular environmental impact assessment process, although the construction project was relevant for nearly half of all surveyed enterprises. Companies, located in the territory of the planned Siaurine Street, highlighted that the major significant components of environmental aspects are noise and air pollution, between socioeconomic environment-suitable infrastructure, human well-being and business and job opportunities. The type of company's activity, income, number of employees and their distance to the Siaurine Street were the main factors determining respondent choices.
2011 m. birželio 9 d. buvo priimtas poveikio aplinkai vertinimo (PAV) įstatymo pakeitimas, kuriuo... more 2011 m. birželio 9 d. buvo priimtas poveikio aplinkai vertinimo (PAV) įstatymo pakeitimas, kuriuo planuojamos ūkinės veiklos (PŪV) poveikio socialinei – ekonominei aplinkai įvertinimas oficialiai įteisintas PAV įstatyme. Šio darbo tikslas - išanalizuoti soc – ekonominio poveikio aplinkai vertinimo svarbą PAV procese ir planuojamos tiesti Vilniaus Šiaurinės gatvės projekte. Tikslui pasiekti buvo išanalizuotos 2006 - 2011 m. Kauno RAAD pateiktos PAV ataskaitos ir atlikta PAV dokumentų rengėjų ir vertintojų apklausa. Taip pat įvertintas planuojamos tiesti Vilniaus Šiaurinės gatvės poveikis soc – ekonominei aplinkai, bei apklaustos įmonės, veikiančios planuojamos tiesti Vilniaus Šiaurinės gatvės nagrinėjamoje teritorijoje. Išanalizavus 2006 – 2011 m. Kauno RAAD pateiktas PAV ataskaitas paaiškėjo, jog poveikis soc – ekonominei aplinkai išsamiai išnagrinėtas tik dvejose iš 10 PAV ataskaitų. Pagrindinis aspektas, išanalizuotas soc – ekonominio poveikio aplinkai vertinimo metu, buvo veiklos...
Agricultural and Food Science, 2019
In studies on plant responses to climate change more attention has been given to aboveground proc... more In studies on plant responses to climate change more attention has been given to aboveground processes although carbon input by plants into the soil is a major flux in the global carbon cycle. The objective of study was to investigate the effects of elevated CO2 and temperature on carbon allocation and partitioning in different parts of plant, soil, and microbial biomass. An experiment was conducted on summer rape (Brassica napus L.) under increased levels of air temperature and atmospheric CO2 in controlled environment chambers. Results showed that the amount of leaf, stem and root carbon statistically significantly increased under elevated CO2 and temperature conditions. Microbial biomass carbon significantly increased by 11.2% and 13.5% under elevated CO2 and elevated CO2 and temperature, respectively, although soil carbon under both treatments decreased. It is concluded that carbon allocation is controlled under different climate conditions; however, elevated CO2 and temperature...
Plant Physiology and Biochemistry, 2019
This study was intended to investigate how an agronomically important crop Brassica napus will be... more This study was intended to investigate how an agronomically important crop Brassica napus will be able to cope with the combined impact of a heatwave (21/14 ºC vs. 33/26 ºC day/night) and drought under ambient or elevated CO 2 (800 vs. 400 µmol mol-1) and to what degree their recovery will be ensured after the stress, when additional CO 2 is also removed. The obtained results revealed that, in the presence of an adequate water supply, B. napus performed well under heatwave conditions. However, drought fully negated all the advantages gained from hotter climate and led to a slower and incomplete recovery of gas exchange and retarded growth after the stress, regardless mitigating the effect of elevated CO 2 during the stress.
Environmental Research, Engineering and Management, 2017
Many berry species are known for their excellent flavor and abundance of healthy compounds posses... more Many berry species are known for their excellent flavor and abundance of healthy compounds possessing antioxidant and other beneficial properties. However, due to a rapid decay after harvesting, the majority of berry crops are processed into juices and other products. Pressing of juice results in large quantities of by-products, called pomace, press-cake or marc. These residues contain various valuable compounds such as polyphenolics, vitamins; however, currently they are used rather inefficiently and in many cases wasted, mainly due to a lack of scientific and technological valorization of their processing methods. This study provides examples of biorefining of black currant (Ribes nigrum), chokeberry (Aronia melanocarpa), raspberry (Rubus idaeus) and European cranberry bush berry (Viburnum opulus) pomaces into high-value functional ingredients by using high pressure and enzyme-assisted extraction/fractionation methods. The residues are further extracted by using pressurized liquids, e.g. water or its mixtures with ethanol while remaining nonsoluble substances are treated with various enzymes to obtain additional water soluble products. The composition and antioxidant properties of the fractions obtained were analysed by chromatography and mass spectrometry while antioxidant properties were evaluated by the batch in vitro assays (DPPH, ABTS, FRAP, ORAC, Folin-Ciocalteu values) and the on-line HPLC-UV-DPPH radical scavenging assay. The results indicate that the fractions isolated from berry pomaces contain valuable bioactive compounds, which might find applications in functional foods, nutraceuticals, cosmetics, and other products. Firstly, lipophilic fractions, consisting mainly of triacylglycerols, were extracted with supercritical carbon dioxide. At optimal conditions, the yields of oily extracts from berries were from 3 to 15 %. These extracts were rich in polyunsaturated fatty acids and tocopherols. Higher polarity fractions were extracted from the residues and the total yield of extracts was up to 80 %. These fractions contained various phytochemicals; most of them were strong antioxidants. Conclusion: the concept of biorefining, which is defined as ‚a sustainable processing of biomass into a spectrum of bio-based products (food, feed, chemicals, materials) and bioenergy (biofuels, power, and/or heat)' may be successfully applied to berry pomaces for the development of high added value functional ingredients; technological and economical aspects of upscaling the processes should be in the focus of future research.
JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT, 2015
In 2011, the Environmental Impact Assessment (EIA) Law amendment was approved and a socio-economi... more In 2011, the Environmental Impact Assessment (EIA) Law amendment was approved and a socio-economic assessment formally became an integrated part of EIA in Lithuania. Therefore, this study examines a socio-economic assessment in the environmental impact statements (EIS) and the perceptions of the EIA experts towards a socio economic assessment. Although formally a socio-economic assessment has been validated only recently, 30% of specialists claimed having conducted a socio-economic assessment in detail prior to the amendments to the law. Thus, the EIS analysis has shown a rather poor consideration of these issues as mainly creation of work places was addressed. The survey has shown that preparation of the EIA documents after the formalisation of a socio-economic assessment would change mainly nominally. The EIA experts working in the private sector were more optimistic than those from state institutions. Reluctance of changes and personal attitudes have to be addressed, especially t...
Environmental and Climate Technologies, 2018
Public participation is one of the conditions for an effective environmental impact assessment. Q... more Public participation is one of the conditions for an effective environmental impact assessment. Quite often public participation is limited to the general public but various organizations, governmental and non-governmental institutions, business enterprises are left aside. The paper analyses the attitudes of different enterprises/organizations with focus on a road construction (Siaurine Street) case in Vilnius, Lithuania in regard to the environmental impact assessment process. The survey indicated that only a very small part of respondents from different enterprises and organizations has been approached in particular environmental impact assessment process, although the construction project was relevant for nearly half of all surveyed enterprises. Companies, located in the territory of the planned Siaurine Street, highlighted that the major significant components of environmental aspects are noise and air pollution, between socioeconomic environment-suitable infrastructure, human well-being and business and job opportunities. The type of company's activity, income, number of employees and their distance to the Siaurine Street were the main factors determining respondent choices.