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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Studies on the effect of different insecticidal applications on quality, nutritional parameters and total antioxidant capacity of brinjal (Solanum melongena L.)

100%
Goswami M. R., Pati U. K., Maity P., Mukhopadhyay A.
International Letters of Natural Sciences
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2018
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tom 69
Brinjal (Solanum melongena L.) suffers from the attack of various pests throughout its different stages of the crop growth. Different insecticides are used to control these pest infestations. The application of these insecticides on brinjal plants may have an effect on their quality and nutritional parameters of fruit samples. In the present study effect of three different insecticides viz. Triazophos 40% E.C. Carbaryl 50% W.D.P, Cypermethrin 10% E.C. and Azadiractin 10,000 ppm formulation belonging to different groups namely organophosphate, carbamate, synthetic pyrethroids and botanical insecticide on brinjal fruit quality, nutritional parameters and total antioxidant capacity (TAC) were assessed in field conditions. The results showed that different insecticides at field application dose showed minute insignificant variation in fruit nutritional and total antioxidant activity parameters in comparison to the control samples. The fruit quality parameters also showed minute variation in comparison to the control, except in the case of Triazophos treated samples which showed significant variation (p<0.05) in total soluble sugar content and crude protein.
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Content available remote

Exposure to air pollution and oxidative stress markers in patients with potentially malignant oral disorders

84%
Gregorczyk-Maga I., Celejewska-Wojcik N., Gosiewska-Pawlica D., Darczuk D., Kesek B., Maga M., Wojcik K.
Journal of Physiology and Pharmacology
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2019
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tom 70
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nr 1
3
Content available remote

Salivary oxidative status in patients with oral lichen planus

84%
Darczuk D., Krzysciak W., Vyhouskaya P., Kesek B., Galecka-Wanatowicz D., Lipska W., Kaczmarzyk T., Gluch-Lutwin M., Mordyl B., Chomyszyn-Gajewska M.
Journal of Physiology and Pharmacology
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2016
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tom 67
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nr 6
4

A comparison of ABTS and DPPH methods for assessing the total antioxidant capacity of human milk

84%
Martysiak-Zurowska D., Wenta W.
Acta Scientiarum Polonorum. Technologia Alimentaria
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2012
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tom 11
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nr 1
Introduction. The Total Antioxidant Capacity (TAC) of human milk reflects the concentration and the activity of many components which prevent oxidative degradation of fats and proteins. This study compares the effectiveness of ABTS and DPPH tests with regard to the recovery, precision and sensitivity (detection and quantification limit) of (TAC) values in human milk. Material and methods. TAC values were determined in twenty five samples of human milk obtained from healthy mothers, residents of Gdańsk, on the 14,h day postpartum. Results. The average TAC of human milk determined by ABTS assay was 19.61 ±3.311 mg TE (Trolox Equivalents)/100 cm3, the average values obtained by the DPPH assay reached 9.95 ±4.36 mg TE/100 cm3. For each milk sample the TAC determined by the ABTS test was significantly higher than the values produced by the DPPH test. The above findings can be attributed to the presence of substances whose spectra overlap with DPPH’ spectra. ABTS test was characterised by a higher sensitivity and repeatability of the determination of TAC in human milk compared to the DPPH test. Conclusions. Comparing the calculated values for the validation parameters of both methods and taking into account the solubility of DPPH only in polar matrices, slower reaction of selected antioxidants with DPPH radical, and the presence in human milk constituents absorbing electromagnetic radiation in the absorption of DPPH be assumed that the ABTS test is more appropriate method of determining of TAC in breast milk.
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Optimizing method for the measurement of insoluble antioxidants in foods

84%
Cejpek K., Banacka E., Konecny M., Velisek J.
Polish Journal of Food and Nutrition Sciences
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2011
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tom 61
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nr Suppl.1
6

Postharvest quality of ‘Glen Ample’ raspberry as affected by storage temperature and modified atmosphere packaging

84%
Molder K., Moor U., Tonutare T., Poldma P.
Journal of Fruit and Ornamental Plant Research
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2011
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tom 19
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nr 1
The aim of the experiment was to determine the effect of two storage tempera­tures (+1 °C and +4 °C) and modified atmosphere packaging (MAP) on the posthar- vest quality of 'Glen Ample' raspberry. Fruits were picked into 450-g well-ventilated plastic punnets, cooled down for 24 hours and packed as follows: control - unpacked ventilated punnets covered with a lid; punnets wrapped in Xtend® film, punnets wrapped with PP30 - 30 ^m polypropylene film and punnets wrapped with OPP25 - 25 ^m oriented polypropylene film. One treatment consisted of eight replicate bags. After 3 days in cool storage, all packages were kept at +15 °C for 24 hours to simulate retail conditions. The O2 and CO2 content in the packages was measured daily. Soluble solids con­tent (SSC), titratable acidity (TA), fruit firmness, ascorbic acid content (AAC), antho- cyanins (ACY) and total antioxidant capacity (TAC) were determined at harvest and at the end of storage. The number of spoiled fruits was recorded and a sensory evalua­tion was carried out at the end of the experiment. Vol. 19(1) 2011: 145-153 During the first 24 hours, the concentration of CO2 increased to 10% in the PP30 and OPP25 packages at +4 °C, while at +1 °C it took 48 hours to reach that level. In the Xtend® packages, CO2 concentration increased above 10% only after the shelf life simulation. The environment in the PP30 and OPP25 packages became anaerobic in retail conditions. Fruit spoilage was significantly lower in the PP30 and OPP25 pack­ages, where the CO2 content increased rapidly. Raspberries had higher SSC, TA, SSC/TA and ACY at +4 °C than at +1 °C. Fruits in the Xtend® packages were significantly firmer than in the other treatments. The mean effect of MAP and the storage temperatures was such that they had no significant influence on raspberry fruit appearance, flavour and off- flavour. Raspberries kept at +4 °C tasted better to the evaluators.
7
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Lipid and protein oxidation in the muscle tissue of rainbow trout after in vitro treatment by extracts derived from greater celandine (Chelidonium majus L.) collected from rural and urban aglomerations of Pomeranian region

67%
Stefanowski N., Tkachenko H., Kurhaluk N., Lukash O., Aksonov I., Buyun L.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
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2021
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tom 25
8

Effect of chilling on total antioxidant capacity and growth processes of basil [Ocimum basilicum L.] cultivars

67%
Baczek-Kwinta R., Serek B., Wator A.
Herba Polonica
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2007
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tom 53
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nr 3
Total antioxidant capacity (TAC, assayed by FRAP method) of three basil (Ocimum basilicum L.) cultivars subjected to chilling stress ( 10°C) and at the recovery stage was studied. To es­timate the influence of temperature on the conditions of plants, the biométrie parameters and leaf water content were measured. It was established that chill does not influence significantly growth of basil plants and leaf water content, but decreases TAC of leaves of 'Sweet Green Genovese' and 'Kasia' cvs. plants. Plants of Polish cultivars 'Kasia' and 'Wala' have a bigger biomass production by individual plant than the Dutch cultivar 'Sweet Green Genovese'. C. var. 'Wala' has the biggest productivity. However, TAC of its leaves is the lowest, whereas 'Sweet Green Geno­vese' c.var. plants give low biomass, but of high reducing capacity.
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