摘要
以末水紫菜为原料,进行紫菜多酚类物质条件优化,并对多酚提取物的保藏稳定性进行探讨.对乙醇体积、液料比、提取温度和超声提取时间4个主要影响因素进行单因素和正交试验,并在此基础上,研究储存温度、pH和光照对紫菜多酚提取物稳定性的影响.结果表明:紫菜多酚最佳提取方案是乙醇体积分数70％、液料比30:1(mL:g)、超声时间40 min、提取温度50 ℃.紫菜多酚提取物适宜在低温、黑暗、酸性条件下存放.
Abstract
In this study,on one hand,with the optimization regarding the extraction of polyphenols from the low value Porphyra haitanensis,the preservation stability of polyphenol extracts was studied.On the other hand,single factor and orthogonal experiments were conducted to evaluate the influence of the four main factors,including ethanol concentration,solvent-to-material ratio,extraction temperature and ultra-sonic extraction time.On this basis,the effects of storage temperature,pH and light on the stability of polyphenols from P.haitanensis were studied.Generally speaking,the results showed that the optimal ex-traction process of polyphenols from P.haitanensis was 70％ethanol concentration,30:1(mL:g)sol-vent-to-material ratio,40 min extraction time and 50 ℃ extraction temperature.What's more,the re-sults of stability suggested that the polyphenols of P.haitanensis should be stored under low-temperature,dark,and acidic conditions.
基金项目
福建省自然科学基金青创项目(2020J05246)
福建省教育厅中青年教师教育科研项目(JAT190487)
近海流域环境测控治理福建省高等学校重点实验室开放基金(2022)(S1-KF2205)
维普
万方数据