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首页> 外文期刊>African Journal of Biotechnology >Improving oxidative stability of ghee using natural oxidants from agri-industrial wastes
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Improving oxidative stability of ghee using natural oxidants from agri-industrial wastes

机译：利用农业工业废料中的天然氧化剂提高酥油的氧化稳定性

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Bioactive compounds found in peanut skin (PS), pomegranate peels (PP) and olive pomace (OP) cake were extracted using ethanol (80%), ethyl acetate and hexane. The ethanol extract showed slightly better antioxidant characteristics than ethyl acetate and hexane extracts. Extracts showed varying degrees of antioxidant potential in different test systems in a dose-dependent manner. In general, it was observed that extracts with higher antioxidant capacity were in parallel to their higher phenolic contents. Total phenolic compounds (as gallic acid equivalent, GAE) ranged between 0.89 to 16.6, 1.83 to 261 and 1.56 to 124 mg? GAE/g extract for OP, PS and PP, respectively. Ethanol extracts of different by-products were added to ghee at concentrations of 200, 400 and 600 ppm, respectively. BHA was also added to ghee at a concentration of 200 ppm. All samples were incubated at 63°C/21days. Ethanol extracts of PS, OP and PP gave good antioxidant activity during accelerated oxidative incubation of ghee. It could be concluded that ethanol extracts under study, at a concentration of 200 ppm, can retard fat auto-oxidation.
机译：用乙醇（80％），乙酸乙酯和己烷提取花生皮（PS），石榴皮（PP）和橄榄果渣（OP）饼中发现的生物活性化合物。乙醇提取物显示出比乙酸乙酯和己烷提取物稍好的抗氧化特性。提取物在不同的测试系统中显示出不同程度的抗氧化剂潜力，呈剂量依赖性。通常，观察到具有较高抗氧化能力的提取物与其较高的酚含量平行。总酚化合物（以没食子酸当量计，GAE）的范围为0.89至16.6、1.83至261和1.56至124 mg？ GAE / g提取物分别用于OP，PS和PP。将不同副产物的乙醇提取物分别以200、400和600 ppm的浓度添加到酥油中。 BHA也以200 ppm的浓度添加到酥油中。所有样品在63℃/ 21天下孵育。 PS，OP和PP的乙醇提取物在酥油的加速氧化孵育过程中具有良好的抗氧化活性。可以得出结论，所研究的乙醇提取物浓度为200 ppm时，可以阻止脂肪的自氧化。

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