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首页> 外文期刊>Journal of Natural Sciences Research >Evaluation of Antioxidant Activity of Ethanolic Extract from Irradiated Sunflower (Helianthus Annuus L.) Seeds Hull
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Evaluation of Antioxidant Activity of Ethanolic Extract from Irradiated Sunflower (Helianthus Annuus L.) Seeds Hull

机译：辐照向日葵种子壳中乙醇提取物的抗氧化活性评价

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Sunflower seeds hull are by-products of the sunflower industry that has low economic value despite its high content of antioxidants such as phenolic compounds and recently natural antioxidants have gained increased interest because natural food ingredients are safer than synthetic ones. Thus, the aim of investigation to evaluate the antioxidant efficacy of ethanolic extract of irradiated sunflower (Helianthus annuus L.) seeds hull (Sakha- 153 variety) at dose levels of 0, 3, 6 and 9 kGy on total phenolic compounds and total antioxidant activity were studied, and the composition of phenolic compounds of ethanolic extract of non-irradiated and irradiated samples was determined by HPLC. The results exhibited that the all extract of samples under investigation possesses high stronger antioxidant activity, especially samples ethanolic extracts of irradiated at dose level of 6 kGy. For further confirmation, the ethanolic extract of irradiated samples at dose level of 6 kGy was investigated on beef minced meat model system. Different concentrations of ethanolic extract of irradiated samples at dose level of 6 kGy and Tert-Butylhydroquinone (TBHQ) were added to beef minced meat and cooked at 100±2oC for 30 min. after cooling at room temperature, the cooked samples were stored at cold storage 4±1oC for 7 days. Thiobarbituric acid reactive substances (TBARS) values proved that ethanol extract of Sakha- 153 sunflower hulls had a power of inhibiting lipid oxidation comparable to TBHQ and exhibit antioxidant activity superior to TBHQ in the beef minced meat model system. Furthermore, the results showed that the ethanolic extract of irradiated sunflower seeds hull samples at dose level of 6 kGy were effective in inhibiting lipid oxidation of sunflower oil. Thus, these results are very beneficial for using the ethanolic extract of irradiated sunflower seeds hull samples at dose level of 6 kGy as natural stronger antioxidant and cheap price in food industry field. Keywords: Antioxidant/ Ethanolic extract/ Sunflower seeds hull.
机译：葵花籽壳是葵花产业的副产品，尽管其抗氧化剂（如酚类化合物）的含量很高，但经济价值较低。近来，由于天然食品成分比合成食品成分更安全，天然抗氧化剂受到了越来越多的关注。因此，研究目的是评估剂量为0、3、6和9 kGy的辐照向日葵（Helianthus annuus L.）种子壳（Sakha-153品种）乙醇提取物对总酚类化合物和总抗氧化剂的抗氧化功效。研究了其活性，并通过HPLC测定了未辐照和辐照样品的乙醇提取物的酚类化合物的组成。结果表明，所研究样品的所有提取物均具有较高的抗氧化活性，尤其是剂量为6 kGy的乙醇提取物。为了进一步确认，在牛肉碎肉模型系统上研究了剂量为6 kGy的辐照样品的乙醇提取物。将6kGy剂量水平的不同浓度的辐照样品的乙醇提取物和叔丁基对苯二酚（TBHQ）添加到牛肉末中，并在100±2oC下烹饪30分钟。室温冷却后，将煮熟的样品在4±1oC的冷藏温度下保存7天。硫代巴比妥酸反应性物质（TBARS）值证明，萨哈153葵花壳的乙醇提取物具有与TBHQ相当的抑制脂质氧化的能力，并且在牛肉碎肉模型系统中具有优于TBHQ的抗氧化活性。此外，结果表明，辐照的葵花籽壳样品的乙醇提取物的剂量水平为6 kGy，可有效抑制葵花籽油的脂质氧化。因此，这些结果对于以6 kGy剂量水平使用经辐照的葵花籽壳样品的乙醇提取物作为天然强抗氧化剂和食品工业领域中的廉价价格非常有益。关键字：抗氧化剂/乙醇提取物/葵花籽壳。

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