黑果腺肋花楸花色苷的提取工艺优化及其稳定性

Science and Technology of Food Industry(2019)

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Abstract
以黑果腺肋花楸果实作为原料,采用单因素实验及正交法优化花色苷提取条件,并测定在不同条件下对花色苷稳定性的影响.结果 表明:乙醇浓度50%,液料比25∶1 g/mL,提取温度55℃,提取时间60 min为最佳提取条件,此时黑果腺肋花楸花色苷提取量可达到(4.32±0.18) mg/g.当pH≤3时,花色苷呈红色且稳定性较强;随着温度升高和光照时间增加,花色苷极其不稳定,溶液颜色逐渐变浅;随着H2O2和Na2SO3浓度逐渐增加,花色苷溶液逐渐褪色.黑果腺肋花楸花色苷在酸性条件下比较稳定,且在加工运输保存时应尽量避免接触氧化剂和还原剂.
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