李博,谭乐和,张彦军,王雪飞

• 1:中国热带农业科学院香料饮料研究所
• 2:黑龙江东方学院食品工程

摘要(Abstract)：

以菠萝蜜种子为原料提取淀粉,利用双螺杆挤压机通过控制挤压操作参数对淀粉进行改性,并对挤出物进行分子量分布和链长分布实验。结果表明:挤压改性后的菠萝蜜种子淀粉对比原淀粉重均分子量和数均分子量均降低,平均回旋半径减少,链长分布中A链和B1链的比例变大,B2链和B3+链比例变小;随着机筒温度和螺杆转速的增加,重均分子量和数均分子量显著降低,A链比例显著增加,B1、B2和B3+链比例显著减少,表明挤压改性菠萝蜜种子淀粉精细结构受挤压操作参数影响显著。

关键词(KeyWords)： 菠萝蜜种子淀粉;挤压改性;双螺杆挤压机;分子量;链长分布

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(31671816);; 海南省自然科学基金创新研究团队项目(2017CXTD018)

作者(Author): 李博,谭乐和,张彦军,王雪飞

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