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。
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.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2013年第13期285-288,共4页
Food Science
关键词
纤维素酶
SD大鼠
生长性能
肠道菌群
小肠微绒毛
cellulose
SD rats
growth behavior
intestinal microflora
intestinal microvilli
