食品科学 ›› 2018, Vol. 39 ›› Issue (12): 226-231.doi: 10.7506/spkx1002-6630-201812035

• 成分分析 • 上一篇    下一篇

乳酸钙处理对发芽大豆植酸降解和主要营养物质含量的影响

惠倩汝,王冕,周婷,王沛,顾振新,杨润强*   

  1. (南京农业大学食品科学技术学院,南京?江苏 210095)
  • 出版日期:2018-06-25 发布日期:2018-06-15
  • 基金资助:
    江苏省重点研发计划项目(BE2016373)

Effects of Calcium Lactate on Phytic Acid Degradation and Macronutrient Contents in Germinating Soybean

HUI Qianru, WANG Mian, ZHOU Ting, WANG Pei, GU Zhenxin, YANG Runqiang*   

  1. (College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China)
  • Online:2018-06-25 Published:2018-06-15

摘要: 研究低浓度乳酸钙对大豆发芽过程中植酸降解以及主要营养物质含量的影响。在大豆发芽4?d期间,施用0.27?mmol/L乳酸钙喷淋对大豆植酸降解效果显著,并且提高锌、铁元素的生物利用率,利于人体对其吸收。此外,可溶性蛋白、可溶性糖含量不断下降,而游离氨基酸的含量随着可溶性蛋白含量下降而上升。总蛋白质含量与氨基酸总量基本保持稳定或略有下降,但氨基酸组成发生较大变化,在17?种氨基酸中,天冬氨酸和组氨酸含量随着发芽时间的延长而增加,其他氨基酸含量均呈下降趋势。乳酸钙处理条件下,促进了天冬氨酸和缬氨酸等氨基酸的累积和其他氨基酸含量的降低。乳酸钙作为优质钙元素补充剂,用低浓度喷淋处理可促进大豆发芽并大量降解抗营养因子植酸,提高营养品质。

关键词: 乳酸钙, 发芽大豆, 植酸, 主要营养物质

Abstract: This study investigated the effects of low-concentration calcium lactate on phytic acid degradation and the contents of macronutrients during soybean germination. After being sprayed with calcium lactate at 0.27 mmol/L for 4 days, the phytic acid in soybean sprouts was degraded significantly, and the bioavailability of zinc and iron was improved. In addition, the contents of other macronutrients, including soluble proteins and soluble sugars, were decreased continuously, while the content of free amino acids was increased. The contents of total proteins and amino acids were maintained steadily or decreased slightly, while the amino acids composition varied greatly. The contents of Asp and His were increased with germination time, whereas the contents of 15 other amino acids were decreased. Calcium lactate enhanced the accumulation of Asp and Val but decreased the content of other amino acids. Spraying soybean sprouts with low-concentration calcium lactate as a good calcium supplement could promote phytic acid degradation, and enhance the nutritional quality of soybean sprouts.

Key words: calcium lactate, germinating soybean, phytic acid, macronutrients

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