文献类型：期刊文献

中文题名：蓝莓果渣花色苷提取工艺优化及抗氧化活性比较研究

英文题名：Optimization of Extraction Conditions of Anthocyanin from Blueberry Pomace and Its Antioxidant Activity

作者：雷良波 周剑丽 黄叶强 赵海钧 赵漫漫 陈军李

第一作者：雷良波

机构：[1]贵州茅台(集团)生态农业产业发展有限公司;[2]贵州理工学院食品药品制造工程学院;[3]江南大学生物工程学院

第一机构：贵州茅台(集团)生态农业产业发展有限公司,贵州丹寨557500

年份：2018

卷号：39

期号：21

起止页码：178-184

中文期刊名：食品工业科技

外文期刊名：Science and Technology of Food Industry

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金：蓝莓果渣综合开发利用的研究

语种：中文

中文关键词：蓝莓果渣;超声辅助提取;pH示差法;花色苷;抗氧化活性

外文关键词：blueberry pomace;ultrasound-assisted extraction;pH-differential method;anthocyanin;antioxidant activity

摘要：以蓝莓干果渣为原料,酸化乙醇为溶剂,应用超声辅助法提取花色苷,利用pH示差法测定花色苷含量,通过单因素实验和响应面试验优化得出蓝莓干果渣花色苷提取工艺条件,比较相同干重的蓝莓干果渣、湿果渣采用超声辅助提取和无超声辅助工艺得到的提取液的总多酚、花色苷含量及抗氧化活性。结果表明,蓝莓干果渣最佳提取工艺为液料比(31∶1) mL/g,乙醇浓度63%,pH2.6,超声功率500 W,提取时间20 min,在此条件下蓝莓果渣提取液中花色苷含量为498.84 mg/100 g。相同原料,超声辅助提取工艺提取液较无超声辅助提取工艺提取液的总多酚和花色苷含量多;相同工艺条件下,相同干重的湿果渣总多酚和花色苷含量较干果渣低,但却拥有更高的抗氧化活性。
Using blueberry dried pomace as raw material, acidified ethanol as solvent, extracting anthocyanin by ultrasonic assisted method, and determining its content by pH differential method, and the optimizing extraction conditions of anthocyanin from blueberry dried pomace were determined by single factor test and Box-Behnken design. And the antioxidant activity of blueberry dried pomace and wet pomace with the same dry weight were compared by ultrasound-assisted extraction and no ultrasonic assisted extraction.The results showed that,the optimized extraction process of blueberry dried pomace were liquid- solid ratio of 31 mL/g, aethyl-alcohol concentration of 63%, pH of 2.6, ultrasonic power of 500 W, and sonication time of 20 min. Under this condition,the anthocyanin content in the blueberry pomace extract was 498.84 mg/100 g. With the same raw materials, the contests of total polyphenols and anthocyanins in the extract by uhtasonic assistred was more than the process without ultrasonic assisted.With the same process conditions, the contents of polyphenols and anthocyanins of wet pomace on the same dry weight were lower than that of dried pomace, but had a higher antioxidant activity.