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投稿时间：2019-10-23
投稿时间：2019-10-23
中文摘要: 添加澄清剂结合机械过滤除去黑果腺肋花楸酒中的悬浮杂质和可能导致浑浊的胶体及其他非稳定性物质，目的是得到澄清稳定的黑果腺肋花楸酒。试验在单因素基础上采用响应面试验设计优化黑果腺肋花楸酒的澄清条件。结果显示：壳聚糖和蛋清粉复合使用澄清效果最好，添加量为壳聚糖190.00 mg/L+蛋清粉130.00 mg/L，温度11.5℃澄清67 h，可得到透明度好，透光率55.65%，宝石红色，口感柔和的黑果腺肋花楸酒。
Abstract:The total flavonoids of Wedelia chinensis were extracted by ultrasonic method，and the optimal extraction conditions were determined，and the antioxidant capacity was explored.It was found that the best extraction conditions of total flavonoids were：ethanol concentration 45%，material liquid ratio 1 ∶30（g/mL），ultrasonic power 40 W，extraction temperature 60℃，extraction time 40 min.Under these conditions，the yield of total flavonoids was as high as 6.64%.The results showed that the higher the concentration of total flavonoids，the stronger the scavenging ability to·OH，DPPH· and NaNO2.When the total flavone concentration of Wedelia chinensis was 0.664 mg/mL，the scavenging rate of DPPH·，·OH and NaNO2were 94.62%，76.29% and 63.99%，respectively，that was，the scavenging rate of DPPH·＞·OH ＞ NaNO2.It could be seen that the total flavonoids of Wedelia chinensis had good antioxidant activity.
文章编号：202021017 中图分类号： 文献标志码：
基金项目:2018年河北省重点研发计划农业关键共性技术攻关专项项目“黑果腺肋花楸、栾树、挪威槭选育栽培即深加工关键技术研究与示范”（18227131D）
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