食品科学

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纤维素酶水解马铃薯渣对SD大鼠生长性能及肠道健康的影响

廖 瑾1,程 力1,*,顾正彪1,2,洪 雁1,李兆丰1,汪振炯1   

  1. 1.江南大学食品学院,江苏 无锡 214122;2.江南大学 食品科学与技术国家重点实验室,江苏 无锡 214122
  • 出版日期:2013-07-15 发布日期:2013-06-28
  • 通讯作者: 程 力

Effect of Cellulose Hydrolysis of Potato Pulp on Growth Behavior, Intestinal Microflora and Intestinal Microvilli of SD Rats

LIAO Jin1,CHENG Li1,*,GU Zheng-biao1,2,HONG Yan1,LI Zhao-feng1,WANG Zhen-jiong1   

  1. 1. School of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
    2. State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  • Online:2013-07-15 Published:2013-06-28
  • Contact: CHENG Li

摘要:

目的:研究利用纤维素酶处理的马铃薯渣对SD大鼠生长性能、肠道主要菌群和小肠微绒毛的影响。方 法:选择断乳雄性 SD大鼠30只,随机分为对照组、原浆组和水解组,每组10只。原浆组和水解组实验日粮分别添 加5%马铃薯渣和用纤维素酶水解过的马铃薯渣替代部分麸皮。结果:水解组大鼠的体质量增长最高,料重比(日 采食量与平均日增体质量的比值)最低;水解马铃薯渣能促进乳酸菌(Lactobacillus)及双歧杆菌(Bifidobacterium)的增 殖,而抑制大肠杆菌(Escherichia coli)和肠球菌(Enterococcus)的增殖;水解组小肠微绒毛高度最高,隐窝深度没有 显著差异,绒毛高度/隐窝深度水解组比值最大。结论:纤维素酶解马铃薯渣能促进大鼠的生长,调节肠道微生态 平衡,促进小肠微绒毛生长发育,提高机体免疫力。

关键词: 纤维素酶, SD大鼠, 生长性能, 肠道菌群, 小肠微绒毛

Abstract:

Objective: To evaluate the effect of potato pulp under different treatments on growth behavior, intestinal
mciroflora and intestinal microvilli of rats. Methods: Totally 30 male Sprague-Dawley (SD) rats were selected and divided
into control group, untreated group and hydrolysis group with 10 rats in each group. The experimental diets for the
untreated group and hydrolysis group were added with 5% potato pulp and cellulose-hydrolyzed potato pulp, and both of
which replaced part of wheat bran. Results: The hydrolysis group revealed more body weight gain than the control group
and untreated group. The hydrolysis group also had the lowest gain-to-feed ratio. Hydrolyzed potato pulp could promote
the proliferation of Lactobacillus and Bifidobacterium, but inhibit the proliferation of Escherichia coli and Enterococci.
The hydrolysis group exhibited the highest villus height, unchanged crypt depth, and the highest ratio of villus-height
to crypt-depth. Conclusion: Cellulose-hydrolyzed potato pulp can promote the body growth of rats, regulate intestinal
microecological balance and improve the growth of intestinal microvilli.

Key words: cellulose, SD rats, growth behavior, intestinal microflora, intestinal microvilli

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