食品科学 ›› 2021, Vol. 42 ›› Issue (4): 44-50.doi: 10.7506/spkx1002-6630-20191129-306

• 食品化学 • 上一篇    下一篇

乳酸钙对高酯柑橘果胶乳化性的影响

范传会,何建军,陈学玲,王少华   

  1. (湖北省农业科学院农产品加工与核农技术研究所,湖北?武汉 430068)
  • 出版日期:2021-02-25 发布日期:2021-02-25
  • 基金资助:
    “十三五”国家重点研发计划重点专项(2018YFD0401300)

Effect on Calcium Lactate on the Emulsifying Properties of High Methoxy Citrus Pectin

FAN Chuanhui, HE Jianjun, CHEN Xueling, WANG Shaohua   

  1. (Institute for Farm Products Processing and Nuclear-Agricultural Technology, Hubei Academy of Agricultural Science, Wuhan 430068, China)
  • Online:2021-02-25 Published:2021-02-25

摘要: 以高酯柑橘果胶(high methoxy citrus pectin,HMP)在溶液中形成的胶束为出发点,通过分析HMP胶束在水溶液和在乳酸钙溶液中形态和大小变化,研究乳酸钙对HMP乳化性质的影响。结果表明:乳酸钙显著改变HMP胶束在溶液中的形态和大小,在乳酸钙溶液中HMP胶束变大,HMP胶束和HMP分子通过钙离子的交联作用形成网状结构。乳化性分析表明乳酸钙可显著提升HMP的乳化指数,抑制乳析现象的发生。当乳酸钙浓度达到12.50 mmol/L时,在室温下贮藏28 d后乳液无乳析现象发生。乳滴粒度分布和乳滴形态分析显示,乳酸钙影响乳滴粒度分布和乳滴形态,在HMP中加入乳酸钙后,乳滴d(0.9)值略微减少,乳滴形态出现非规则球形。染色乳滴形态显示在HMP中加入乳酸钙后,乳滴表面有附着物。用HMP和乳酸钙制备的乳液类似于Pickering乳液。

关键词: 高酯柑橘果胶;乳酸钙;乳液

Abstract: The aim of this research was to study the effect of calcium lactate on the emulsifying properties of high methoxy citrus pectin (HMP). Differences in the morphology and size of HMP micelles in aqueous solution were compared in the presence and absence of calcium lactate. Addition of calcium lactate distinctly affected the morphology and size of HMP micelles in aqueous solution, increasing the size of HMP micelles and inducing cross-linking of HMP micelles and HMP molecules to form a reticular structure. Calcium lactate significantly improved the emulsion stability index of HMP and inhibited creaming. After storage for 28 days at room temperature, no creaming occurred in the presence of 12.50 mmol/L calcium lactate. Calcium lactate affected the droplet size distribution and morphology. The d(0.9) value of the emulsion droplets was decreased slightly and the droplet morphology of irregular spheres appeared in the presence of calcium lactate. The morphology of the dyed emulsion droplets showed that there were substances adhered on the surface in the presence of calcium lactate. The emulsion prepared from HMP with added calcium lactate was similar to the Pickering emulsion.

Key words: high methoxy citrus pectin; calcium lactate; emulsion

中图分类号: