响应面法优化桑葚果渣花青素提取工艺及成分分析Optimization of Extraction Process of Anthocyanins from Mulberry Pomace by Response Surface Method and Analysis of Their Components
林颖,赵书田,熊灵,丁波,邓照,吴浪,张文学
摘要(Abstract):
为充分利用桑葚果渣中的花青素,在超声辅助酶提取条件下,以桑葚果渣为原料,探索了料液比、酶用量、超声时间和超声温度4个单因素对桑葚果渣花青素提取量的影响,并采用响应面法优化了超声辅助酶提取花青素工艺,进一步使用超高效液相色谱-质谱联用仪(UPLC-MS)对提取液进行了花青素成分确定。结果表明,花青素最佳提取条件为料液比1∶20、酶用量0.3%、超声时间1.7 h、超声温度55℃,此时桑葚果渣花青素提取量可达7.071 2 mg/g。提取液中可检测到10种花青素,主要为矢车菊素-3-O-芸香糖苷(44.56%)、矢车菊素-3-O-芸香糖苷-葡萄糖苷(25.84%)、矢车菊素-3-O-木糖苷(18.41%)和矢车菊素-3,5-O-二葡萄糖苷(7.34%)。该试验结果可为桑葚果渣利用和花青素产品生产提供思路和参考依据。
关键词(KeyWords): 桑葚;花青素;超声辅助酶提取;响应面优化
基金项目(Foundation): 四川省科技计划项目(2021YFN0012)
作者(Author): 林颖,赵书田,熊灵,丁波,邓照,吴浪,张文学
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