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Multiresponse Optimization and Prediction of Antioxidant Properties of Aqueous Ginger Extract

机译：生姜提取物的多反应优化及抗氧化性能预测

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The influence of extraction temperature, powder concentration, and extraction time on the antioxidant properties of aqueous ginger extract was investigated. The possibility of estimating the antioxidant properties of the extract from its absorbance and colour properties was also investigated. Results indicated that powder concentration was the most significant factor to consider in optimizing antioxidant extraction. However, temperature and time still influenced the 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity while extraction temperature influenced the 2,2-diphenyl-l-picrylhydrazyl (DPPH) radical scavenging activity of the extract. Using the total phenol content, total flavonoid content, ABTS radical scavenging activity, and DPPH radical scavenging activity of the extract, the multiresponse optimization condition for extraction of antioxidant based on the experimental range studied is 96°C, 2.10 g/100 mL, and 90 min. The absorbance of the ginger extract at 610 nm could be exploited for rapid estimation of its total flavonoid and polyphenol with a R2 of 0.713 and 0.753, respectively.
机译：研究了提取温度，粉末浓度和提取时间对姜水提取物抗氧化性能的影响。还研究了从提取物的吸光度和颜色性质评估其抗氧化性的可能性。结果表明，粉末浓度是优化抗氧化剂提取过程中要考虑的最重要因素。然而，温度和时间仍然影响2,2'-叠氮基双-（3-乙基苯并噻唑啉-6-磺酸）（ABTS）自由基清除活性，而萃取温度影响2,2-二苯基-1-吡咯并肼基（DPPH）自由基清除活性提取物的活性。使用提取物的总酚含量，总类黄酮含量，ABTS自由基清除活性和DPPH自由基清除活性，根据研究的实验范围，提取抗氧化剂的多反应优化条件为96°C，2.10 g / 100 mL和90分钟姜提取物在610 nm处的吸光度可用于快速估算其总黄酮和多酚，R2分别为0.713和0.753。

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