食品与发酵工业 >

2021 , Vol. 47 >Issue 1: 148 - 154

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.024921

研究报告

玉米蛋白水解物免疫活性的研究

  • 高健 ,
  • 林巍 ,
  • 刘晓兰 ,
  • 刘祥 ,
  • 郑喜群 ,
  • 李冠龙
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  • 1(齐齐哈尔大学 食品与生物工程学院,黑龙江 齐齐哈尔,161006)
    2(黑龙江省玉米深加工理论与技术重点实验室,黑龙江 齐齐哈尔,161006)
    3(黑龙江八一农垦大学 食品学院,黑龙江 大庆,163319)
硕士研究生(郑喜群教授为通讯作者,E-mail:zhengxiqun@126.com)

收稿日期: 2020-07-01

  修回日期: 2020-07-14

  网络出版日期: 2021-02-03

基金资助

十三五国家重点研发计划项目(2017YFD0400200);国家自然科学基金项目(31371726);黑龙江省自然科学基金重点项目(ZD2016005);黑龙江省植物性食品加工技术优势特色学科项目(YSTSXK201803);齐齐哈尔大学研究生创新项目(YJSCX2018-041X)

收起

Evaluation of immuneactivity a hydrolysate proteolysis from corn gluten meal

  • GAO Jian ,
  • LIN Wei ,
  • LIU Xiaolan ,
  • LIU Xiang ,
  • ZHENG Xiqun ,
  • LI Guanlong
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  • 1(College of Food and Biological Engineering, Qiqihar University, Qiqihar 161006, China)
    2(Key Laboratory of Corn Deep Processing Theory and Technology, Qiqihar 161006, China)
    3(College of Food Science, Heilongjiang Bayi Agricultural University, Daqing 163319, China)

Received date: 2020-07-01

  Revised date: 2020-07-14

  Online published: 2021-02-03

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摘要

为拓展玉米蛋白粉在功能食品领域的应用,研究了玉米蛋白双酶水解产物(corn gluten hygrolysate,CGH)的体外脾淋巴细胞增殖活性,以及其对免疫抑制小鼠免疫调节作用及体内抗氧化活性的影响。利用复合蛋白酶和碱性蛋白酶协同作用于玉米蛋白粉制备CGH,进行体外脾淋巴细胞增殖活性测定,初步确定其免疫增强活性,然后构建免疫抑制动物模型。小鼠灌胃CGH,第21天用环磷酰胺诱导免疫抑制,测定细胞因子(TNF-α、IFN-γ、IL-2和IL-6)分泌水平,以及抗氧化酶活性和丙二醛含量。结果表明:CGH质量浓度在80~320 μg/mL时对体外培养的脾细胞具有促增殖的作用;与模型组相比,高、中、低剂量组[200、100、50 mg/(kg·d)]能显著提高免疫抑制小鼠TNF-α和IFN-γ含量,高、中剂量组能显著提高IL-2含量,高剂量组能显著提高IL-6含量,高、中剂量组显著提高小鼠超氧化物歧化酶、谷胱甘肽过氧化酶和过氧化氢酶含量,并且降低了丙二醛含量(P＜0.05)。因此,CGH在体外及体内均具有良好的免疫调节作用,是潜在的免疫调节剂,该研究为玉米蛋白源免疫活性肽在功能食品中的应用奠定了基础。

关键词： 玉米蛋白粉; 酶解物; 免疫活性

本文引用格式

高健 , 林巍 , 刘晓兰 , 刘祥 , 郑喜群 , 李冠龙 . 玉米蛋白水解物免疫活性的研究[J]. 食品与发酵工业, 2021 , 47(1) : 148 -154 . DOI: 10.13995/j.cnki.11-1802/ts.024921

Abstract

In order to expand the application of corn gluten meal(CGM) in the field of functional food, the effects of corn gluten hydrolysate (CGH) on spleen lymphocyte proliferation in vitro, immune regulation and antioxidant activities in immunosuppressed mice were studied.CGH was obtained from CGM by synergistic hydrolysis catalyzed by protamex and alcalase.The immunoactivity of CGH was determined by the proliferation of spleen lymphocytes in vitro, then, an immunosuppressive mouse model was constructed.Mice were given CGH by gavage and obtained with cyclophosphamide at twenty-first day.Cytokines (TNF-α, IFN-γ, IL-2 and IL-6), the antioxidant enzymes activities (SOD, GSH-Px, CAT) and malondialdehyde (MDA) content were measured.The results showed that CGH at concentration between 80 μg/mL and 320 μg/mL could promote the proliferation of spleen cells cultured in vitro.Compared to the model group, the high, medium and low doses [200, 100, 50 mg/(kg·d)] could significantly increase the content of TNF-α and IFN-γ;the high and medium doses could significantly increase the content of IL-2;the high dose could significantly increase the content of IL-6 (P＜0.05).The high and medium doses [200, 100 mg/(kg·d)] could significantly increase the contents of SOD, GSH-Px, CAT and could significantly decrease the content of MDA (P＜0.05).Therefore, CGH has a good immunomodulatory effect in vitro and in vivo, and is a potential immunomodulator, which lays a foundation for the application of immunomodulatory peptides from corn gluten meal in functional foods.

Key words： corn protein powder; hydrolysate; immune activity

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