让凤菊,刘伟,张慧敏,王双双,欧阳艳

• 1:伊犁师范大学化学与环境科学学院新疆普通高等学校天然产物化学与应用重点实验室

摘要(Abstract)：

目的：以新疆吊干杏为原料，采用酸提醇沉法提取吊干杏果胶(Prunus armeniaca L. cv. Diaogan pectin, PDP),优化其提取工艺，并参照COR(commercial orange pectin)初步分析吊干杏果胶的理化性质。实验结果显示，提取率最高的实验条件为溶液pH值1.5、料液比1∶20 (g/mL)、提取温度90℃、提取时间75 min,此时果胶提取率为10.26%;吊干杏果胶的酯化度为43.72%,属低甲氧基果胶，灰分含量4.82%、酸不溶物含量0.94%、半乳糖醛酸含量64.34%、pH值3.13、溶解度33.84%。傅里叶红外光谱与扫描电镜检测显示：与COP相比，PDP表面稍光滑，呈凝固块状，具有果胶的典型吸收光谱。

关键词(KeyWords)： 吊干杏;果胶;提取工艺;理化性质;正交实验

Abstract:

Keywords:

基金项目(Foundation): 伊犁师范大学2020年度科研项目(2020YSHXYB02)

作者(Author): 让凤菊,刘伟,张慧敏,王双双,欧阳艳

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