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中国精品科技期刊2020

支链聚合度对菠萝蜜种子淀粉热力学特性的影响及老化动力学分析

张雨桐, 张彦军, 谭乐和, 徐飞, 李士泽

张雨桐, 张彦军, 谭乐和, 徐飞, 李士泽. 支链聚合度对菠萝蜜种子淀粉热力学特性的影响及老化动力学分析[J]. 食品工业科技, 2018, 39(21): 22-28. DOI: 10.13386/j.issn1002-0306.2018.21.005
引用本文: 张雨桐, 张彦军, 谭乐和, 徐飞, 李士泽. 支链聚合度对菠萝蜜种子淀粉热力学特性的影响及老化动力学分析[J]. 食品工业科技, 2018, 39(21): 22-28. DOI: 10.13386/j.issn1002-0306.2018.21.005
ZHANG Yu-tong, ZHANG Yan-jun, TAN Le-he, XU Fei, LI Shi-ze. Effect of Polymerization Degree of Amylopectin on the Thermal Properties of Jackfruit Seed Starch and Its Retrogradation Kinetic Analysis[J]. Science and Technology of Food Industry, 2018, 39(21): 22-28. DOI: 10.13386/j.issn1002-0306.2018.21.005
Citation: ZHANG Yu-tong, ZHANG Yan-jun, TAN Le-he, XU Fei, LI Shi-ze. Effect of Polymerization Degree of Amylopectin on the Thermal Properties of Jackfruit Seed Starch and Its Retrogradation Kinetic Analysis[J]. Science and Technology of Food Industry, 2018, 39(21): 22-28. DOI: 10.13386/j.issn1002-0306.2018.21.005

支链聚合度对菠萝蜜种子淀粉热力学特性的影响及老化动力学分析

基金项目: 

海南省自然科学基金创新研究团队项目(2017CXTD018)

中国热带农业科学院基本科研业务费专项基金(1630142018004)。

详细信息
    作者简介:

    张雨桐(1994-),女,硕士研究生,研究方向:食品科学,E-mail:18945953395@163.com。

    通讯作者:

    张彦军(1982-),男,博士,副研究员,研究方向:热带作物加工,E-mail:zhangyanjun0305@163.com

    李士泽(1966-),男,博士,教授,研究方向:食品科学,E-mail:lishize1@sina.com。

  • 中图分类号: TS231

Effect of Polymerization Degree of Amylopectin on the Thermal Properties of Jackfruit Seed Starch and Its Retrogradation Kinetic Analysis

  • 摘要: 为了探究支链聚合度对淀粉老化的影响,利用差示扫描量热仪结合Avrami方程,研究不同支链聚合度菠萝蜜种子淀粉(jackfruit seed starch,JFSS)凝胶后贮藏过程中的老化焓变和老化动力学。结果表明:支链聚合度降低,JFSS凝胶后老化过程形成更多趋于有序排列的结晶,老化速率从0.336增加到0.513,不同聚合度JFSS成核方式为瞬间成核;随贮藏时间的延长,JFSS老化度增大;支链聚合度与Avrami指数呈显著正相关(p<0.05);支链重均聚合度与凝胶化焓呈极显著负相关(p<0.01),数均聚合度凝胶化焓呈显著负相关(p<0.05);支链重均聚合度与贮藏0~7 d的老化焓变均呈现显著负相关(p<0.05)。支链聚合度是影响淀粉贮藏过程中老化特性的重要结构因素。
    Abstract: In order to explore the effect of polymerization degree of amylopectin on starch retrogradation,differential scanning calorimetry and Avrami equation were used to study the retrogradation enthalpy and retrogradation kinetics of jackfruit seed starch(JFSS)gels with different polymerization degree of amylopectin during storage. The results showed that the polymerization degree of amylopectin decreased,the retrogradation process of JFSS gel formed more crystals with an arranged order,the retrogradation rate increased from 0.336 to 0.513,and the nucleation of JFSS with polymerization degree of amylopectin was instantaneous nucleation. The retrogradation degree of JFSS increased with storage time increasing. Polymerization degree of amylopectin had a significant positive correlation with the Avrami index(p<0.05). Weight-average polymerization degree of amylopectin had extremely significant negative correlation with the gelatinization enthalpy(p<0.01),and number-average polymerization degree of amylopectin had a significant negative correlation with the gelatinization enthalpy(p<0.05). There was a significant negative correlation between weight-average polymerization degree of amylopectin and retrogradation enthalpy for 0~7 days storage(p<0.05).The polymerization degree of amylopectin was an important structural factor that could affect the retrogradation properties of starch in the process of storage.
  • 期刊类型引用(1)

    1. 朱立斌,徐飞,李博,牛广财,张彦军. 支链聚合度对菠萝蜜支链淀粉与月桂酸复合物理化特性的影响. 食品工业科技. 2021(21): 65-72 . 本站查看

    其他类型引用(0)

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出版历程
  • 收稿日期:  2018-02-24
  • 网络出版日期:  2020-11-24
  • 刊出日期:  2018-10-31

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