REVIEW ON DIETARY TOCOPHEROL ACCUMULATION ON PORK TISSUES AND ITS MEMBRANE ANTIOXIDANT ROLE AGAINST LIPID OXIDATION

Published in AgroLife Scientific Journal, Volume 6, Number 2
Written by Mihaela GHIDURUȘ, Leonard ILIE, Mioara VARGA, Mircea MIHALACHE

Lipid oxidation prejudices meat quality by degrading polyunsaturated fatty acids to volatile short chain compounds that are the source of undesirable flavours and odours which reduce the appeal of products to consumers. The current review is a comprehensive study dealing with the effect the way tocopherol is absorbed by direct incorporation into diet in the intestine and then transported to the liver and distributed throughout the body, reaching out the highest amount in microsomes and mitochondria. Cumulative results of previous studies and experiments indicates that the susceptibility of meat to lipid oxidation is influenced by the α-tocopherol content of meat and PUFA content of the membrane phospholipids. Within the frame of the review we provide confirmation of the positive effect of dietary vitamin E levels on lipid oxidation by studying and analyzing published experiments where lipid oxidation was measured and where vitamin E accumulation was evaluated, established a quantitative relationship between dietary vitamin E alone and in conjunction with other antioxidants and its effects on pork meat quality.

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GHIDURUȘ M., ILIE L., VARGA M., MIHALACHE M. 2017, REVIEW ON DIETARY TOCOPHEROL ACCUMULATION ON PORK TISSUES AND ITS MEMBRANE ANTIOXIDANT ROLE AGAINST LIPID OXIDATION. AgroLife Scientific Journal, Volume 6, Number 2, ISSN 2285-5718, 112-119.

Romanian soil resourceshealthy soils for a healthy life

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Mircea MIHALACHE, Leonard ILIE, Doru Ioan MARIN

After nearly three years of intensive consultations, 2015 has been declared the International Year of Soils by the 68th UN General Assembly (A/RES/68/232). The International Years of Soil is to be a major platform for raising awareness of the importance of soils for food security and nutrition and essential eco-system functions. Key objectives of the International Years of Soil have been identified as follows: to create full awareness of all stakeholders about the fundamental roles of soils for human life; to achieve full recognition of the prominent contributions of soils to food security and nutrition, climate change adaptation and mitigation, essential ecosystem services, poverty alleviation and sustainable development; to promote effective policies and actions for the sustainable management and protection of soil resources; to sensitize decision-makers about the need for robust investment in sustainable soil management activities, to ensure healthy soils for different land users and population groups; to catalyze initiatives in connection with the Sustainable Development Goal process and Post-2015 agenda; to advocate rapid enhancement of capacities and systems for soil information collection and monitoring at all levels (global, regional and national) (http://www.fao.org/soils-2015). Applying a proper management of the recovery and conservation of soil resources is a major goal for every nation. The development of a country depends on the production potential of own soil resources. Soil degradation is a serious problem in Europe an also in Romania. It is caused or exacerbated by human activity such as inadequate agricultural and forestry practices, industrial activities, tourism, urban and industrial expansion etc. Soil Quality Monitoring in Romania revealed a number of problems concerning land use in Romania following the manifestation of one or more limiting factors such as: moisture deficit, salinization and alkalization, soil erosion, waterlogging, reduced organic matter content soil acidity, compaction, pollution, reduced edaphic volume etc.

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Mircea MIHALACHE, Leonard ILIE, Doru Ioan MARIN 2015, Romanian soil resources - "healthy soils for a healthy life". Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1, PRINT ISSN 2285-5718, 101-110.

SENSORY PROFILE CHANGES INDUCED BY THE ANTIOXIDANT TREATMENTS OF WHITE WINES - THE CASE OF GLUTATHIONE, ASCORBIC ACID AND TANNIN TREATMENTS ON FETEASCA REGALA WINES PRODUCED IN NORMAL CELLAR CONDITIONS

Published in AgroLife Scientific Journal, Volume 6, Number 1
Written by Arina Oana ANTOCE, George Adrian COJOCARU

The present work aims to determine in which way the sensory profiles of the Feteasca regala white wines are affected by treatments with various antioxidants under normal wine cellar conditions and whether the changes induced are perceivable by tasters. The tested antioxidants were the reduced glutathione (GSH) and ascorbic acid (AA), both added during the fermentation of Feteasca regala musts, and also catechinic tannin and carbon dioxide added in the young wines during bottling. The GSH in doses of 0, 20 and 40 mg/l was added in the must just before fermentation, with or without an addition of 50 mg/l AA. The following 50 l variants were thus obtained: G0, G20, G20A50, G40 and G40A50. The young wines were then racked and bottled, adding in each variant during the bottling process either 0 or 20 mg/l catechinic tannin (T0 and T20) and using or not carbon dioxide for protection against oxygen. The main sensory parameters of wines were analyzed by using a protocol developed in our laboratory and also ranked by using the OIV-UIO score sheet for wine contests. Sensory profiles for each variant were obtained and discussed. The parameters which affected the sensory profiles of the wines were statistically analyzed for groups of samples containing the same type of treatment, to determine the treatments with significant influences on the sensory parameters. It was observed that in normal cellar conditions, where protection against oxygen is difficult to maintain in all winemaking stages, the GSH did not improve the aroma intensity and the floral scent perceived in the wines treated, the control wines scoring better for these parameters. The dose of 40 mg/l GSH improved both parameters as compared to the dose of 20 mg/l, but they were still under the values of the control samples. Also, the GSH used without AA increased the perception of bitterness, while in the presence of AA the bitterness induced by GSH was diminished. The tannin did not change the bitterness or the intensity of aroma, but influenced the floral scent, which was better perceived in the samples treated with it. Carbon dioxide treatments during bottling did not have a significant influence on any of the tested parameters.

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ANTOCE A.O., COJOCARU G.A. 2017, SENSORY PROFILE CHANGES INDUCED BY THE ANTIOXIDANT TREATMENTS OF WHITE WINES - THE CASE OF GLUTATHIONE, ASCORBIC ACID AND TANNIN TREATMENTS ON FETEASCA REGALA WINES PRODUCED IN NORMAL CELLAR CONDITIONS. AgroLife Scientific Journal, Volume 6, Number 1, ISSN 2285-5718, 19-30.

SOIL FRIABILITY ASSESSMENT OF SOME AGRICULTURAL SOILS IN ROMANIA

Published in AgroLife Scientific Journal, Volume 6, Number 2
Written by Olga VIZITIU, Irina CALCIU, Cătălin SIMOTA

Tensile strength is a dynamic property and is sensitive to soil structure because it is related to the presence of air-filled pores, the occurrence of micro-cracks and the strength of inter-granular bonds within and between micro-cracks. Moreover, the tensile strength of soil is much affected by the soil water content and processes which change pore characteristics and/or the cementation between structural units. A friability index has been proposed that is based on measurements of tensile strength of different sized aggregates. The main objectives of the present paper were to measure the mechanical properties (tensile strength and friability) of soil aggregates collected from three agricultural soils, and to explore the relationships between mechanical and basic physical properties of the investigated soils. Soils used in these investigations can be described as “friable” according to the classification used for friability index, F1, values. Soil aggregates of the sandy soil from Grădiștea had the smallest values of tensile strength. The highest values of tensile strength were recorded in case of clayey soil, whereas the loamy soil had values between the sandy and clayey soils. Increasing organic matter content decreased the values of tensile strength for soil aggregates from all soils. High values of clay content in case of loamy and clayey soils increased the values of tensile strength. Increasing amount of clay in sandy soil has been shown to increase the tensile strength of this soil. This may be due to clay particles acting as cementing materials between large particles. Higher amounts of clay in sandy soils provide more opportunities for interparticle contact. Small size classes of aggregates presented higher values of tensile strength as compared with larger size classes of aggregates when the volume dependence method was used. In case of sandy and clayey soils were found underestimates and respectively overestimates of F2 values. As for the loamy soil, the volume dependence method (F2) gave similar values when compared to the coefficient of variation method (F1). The coefficient of variation method is recommended as standard method for measuring soil friability.

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VIZITIU O., CALCIU I., SIMOTA C. 2017, SOIL FRIABILITY ASSESSMENT OF SOME AGRICULTURAL SOILS IN ROMANIA. AgroLife Scientific Journal, Volume 6, Number 2, ISSN 2285-5718, 219-226.

Species and cultivars of trees and shrubs suitable for urban agriculture

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Viorica BALAN, Ioana TUGUI, Adrian ASANICA, Valerica TUDOR

Urban agriculture is a concept that has great potential growth in developed countries, where the urbanization rate will increase by FAO data to 65%, by the year 2025. The rate of urbanization is growing also in the other countries, sustainable development of the developing countries an urban development of rural areas, e.g. situation of Romania. Feeding and especially the food which contributes to the growing urban population health becomes an issue of national strategy. The role of fruit in general and ecological in particular, especially remarked in balanced dietis certainly undeniable. For this reason is therefore very important to encourage the increasing number of trees in urban area sand of course the diversification of species and varieties of trees and shrubs grown. Successful implementation of such a strategy is based among others on knowledge. In this knowledge, we want to make our contribution by presenting the results of research synthesis developed over the years 2007-2014 at USAMV Bucharest, regarding the fruit growing ecosystem sustainability and increasing the diversity of species and varieties of trees and shrubs adapted to the urban agriculture.

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Viorica BALAN, Ioana TUGUI, Adrian ASANICA, Valerica TUDOR 2015, Species and cultivars of trees and shrubs suitable for urban agriculture. Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1, PRINT ISSN 2285-5718, 9-17.

Stabilizing the gonadotropin activity with the use of different organic compounds

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Yriy SLYVCHUK, Iryna MATIUKHA, Vasy lSYRVATKA, Ivan HEVKAN, Svetlana FYODOROVA, Oksana SHTAPENKO, Ivan ROZGONI

Complex studies of optimum quantitative and qualitative composition of carbohydrates and amino acids necessary for gonadotropines activity stabilization were the aim of our investigations. This was determined by biological active substances - saccharose, L- lysine which stabilizes gonadotropins activity for longer use while preserving activity. As a result of the studies we found out that during 6 weeks of incubation at 40 0

STEEL SLAG - UNCONVENTIONAL AMENDMENT FOR ACID SOILS

Published in AgroLife Scientific Journal, Volume 6, Number 1
Written by Georgiana PLOPEANU, Eugenia GAMENŢ, Mariana MARINESCU, Nicoleta VRÎNCEANU, Vera CARABULEA

Initially, each soil type has a certain level of acidity depending on the composition, the natural vegetation, the amount of rainfall and various other factors that cause changes in soil pH over time. Soil amendment in order to obtain an optimal pH improves also the yields for long-term. This paper refersto the selection of an agriculture lime material to be used in experiments on acidity correction of an acid soil. In Romania, according to official data are obtained annually approximately 75 000 t of steel slag. If the slag is not dangerous for the environment and public health, then the priority should be given to the use of recycled materials. Considered an unconventional amendment, steel slag was selected taking into account its quality and association with legislation. Steel slag presented an Amendment Neutralization Potential very high (ANP = 114%) reported to the content of calcium oxide and magnesium oxide. Steel slag can be considered a mineral amendment used to improve soil acidity, and also a source of calcium and magnesium. Using steel slag as amendment for acid soils can be considered a potential and significant environmental risk, which is why the whole process of amendment must be conducted in terms of environmental protection.

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PLOPEANU G., GAMENŢ E., MARINESCU M., VRÎNCEANU N., CARABULEA V. 2017, STEEL SLAG - UNCONVENTIONAL AMENDMENT FOR ACID SOILS. AgroLife Scientific Journal, Volume 6, Number 1, ISSN 2285-5718, 195-200.

Studies on the effect of genotype on growth and seed yield in some Camelina sativa L varieties cultivated under controlled environmental conditions

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Emanuela PODGOREANU, Stefana JURCOANE, Silvana-Mihaela DANAILA-GUIDEA, Ana ROSU, Florentina SAUCA, Andra Cecilia MORARU, Stelica CRISTEA

The recently emerged interest in using renewable vegetable sources as feedstock for biofuel production requires the identification of effective solutions aimed to follow the principles of sustainable development. Biofuels from the first generation were produced from sugarcane, starch and oils derived from agricultural products, but they may not be sustainable because are competing with the agricultural production. Currently, studies are focused on the obtaining of a second generation of biofuels that originate from plants other then food crops, from agricultural residues and from municipal wastes. Being economically attractive and having certain agro-technical advantages, the Camelina sativa seed oil is considered a sustainable source for obtaining second generation biofuels. The aim of the present research was to record the effect of genotype in 3 foreign varieties of Camelina sativa (CALENA, GP 204 and GP 202) and in 3 autochthonous ones (CAMELIA, one local population Fundulea and one hybrid line) as regards both the growth characteristics and the yield components in a greenhouse experiment, in order to evaluate their potential performance and adaptability in field conditions. Periodic phenological observations were performed on the occurrence of flowering, on the pod maturation and genotypic differences of the biometric measurements such as plant height, number of branches, number of pods per plant, number of seeds in pods and thousand seed weight are discussed.

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Emanuela PODGOREANU, Stefana JURCOANE, Silvana-Mihaela DANAILA-GUIDEA, Ana ROSU, Florentina SAUCA, Andra Cecilia MORARU, Stelica CRISTEA 2015, Studies on the effect of genotype on growth and seed yield in some Camelina sativa L. varieties cultivated under controlled environmental conditions. Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1, PRINT ISSN 2285-5718, 131-136.

Study on the heritability of milk production in a line of Holstein Freise

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Tomita DRAGOTOIU, Nicoleta ISFAN, Loredana STROILESCU, Dumitru DRAGOTOIU, Monica MARIN, Izabela OPREA

Livestock genetical structure improvement from one generation to another request, among others, the knowledge of their genetical parameters. The guidance of livestock genetical structure involves the knowledge of the share caused by genetical and environmental factors concerning the variability observed at the livestock level. The knowledge of heritability coefficient values makes easy the livestock genetical improvement, this one indicating the resolution of the traits to be improved. In this respect, there was estimated the milk production heritability, of the protein percent, of the fat percent, in a line of Holstein-Friese, during three generations. The heritability coefficients analysis, estimated by means of the interclass correlation method, for the three traits in the lactations dynamics, emphasized different values from one lactation to another, values justified by different sample genetical structures and respectively the different environmental conditions where these ones evolved. With little exceptions, the heritability coefficients values were comprised between 0.2 and 0.4, values which frame the traits within the group of those intermediary heritable. This genetical determinism of the analysed traits within the line of Holstein-Frieserecommends that this one may be relatively easy to improve.

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Tomita DRAGOTOIU, Nicoleta ISFAN, Loredana STROILESCU, Dumitru DRAGOTOIU, Monica MARIN, Izabela OPREA 2015, Study on the heritability of milk production in a line of Holstein Freise. Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1, PRINT ISSN 2285-5718, 56-63.

STUDY REGARDING THE INFLUENCE OF FERTILIZATION ON SOME PHYSIOLOGICAL INDEX AND BIOCHEMICAL COMPOSITION OF PEPPERMINT OILS (Mentha piperita L.)

Retracted article from publishing in AgroLife Scientific Journal, Volume 6, Number 2
Written by Dorin CAMEN, Carmen DRAGOMIR, Cosmin POPESCU, Tiberiu IANCU, Sorin STANCIU, Roxana LUCA, Nicoleta HĂDĂRUGĂ, Mihaela MOATĂR, Eleonora NISTOR, Florin SALA

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