《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (8): 2333-2341.doi: 10.16431/j.cnki.1671-7236.2017.08.017

• 动物营养与饲料科学 • 上一篇    下一篇

11株枯草芽孢杆菌益生特性研究

刘秀侠, 徐海燕, 辛国芹, 李金敏, 赵影, 孙学森, 谷巍   

  1. 山东宝来利来生物工程股份有限公司, 泰安 271000
  • 收稿日期:2016-12-21 出版日期:2017-08-20 发布日期:2017-08-18
  • 通讯作者: 刘秀侠 E-mail:liuxiuxia0208@126.com
  • 作者简介:刘秀侠(1988-),女,安徽濉溪人,硕士,研究方向:微生态制剂的研发
  • 基金资助:

    国家高技术研究发展计划"863计划"子课题(2013AA102806)

Study on Probiotic Characteristics of Eleven Bacillus subtilis Strains

LIU Xiu-xia, XU Hai-yan, XIN Guo-qin, LI Jin-min, ZHAO Ying, SUN Xue-sen, GU Wei   

  1. Shandong Baolai-Leelai Bio-Industrial Group, Tai'an 271000, China
  • Received:2016-12-21 Online:2017-08-20 Published:2017-08-18

摘要:

试验旨在研究11株枯草芽孢杆菌的抑菌、产酶、耐受性和体外消化率等益生特性。从11株枯草芽孢杆菌中初筛得到9株体外抑菌特性和产酶特性均较好的芽孢杆菌;经过热、人工胃肠液、胆盐等耐受性复筛,结果表明9株芽孢杆菌中有6株对胆盐、胃酸、肠液等人工模拟的消化道内环境和生产过程中的热耐受性较强;经模拟动物体消化道的试验结果表明,9株芽孢杆菌中有5株(BLCC1-1、BLCC1-2、BLCC1-3、BLCC1-4、BLCC1-6)对不同组合饲料的消化效果较好。综合以上试验结果,既表现出较好的产酶、抑菌和耐受性,又对组合饲料有良好的消化效果的枯草芽孢杆菌有BLCC1-1、BLCC1-2、BLCC1-4和BLCC1-6,这4株枯草芽孢杆菌具有作为饲料添加剂应用于畜禽饲料中的潜力,可进一步开展研究。

关键词: 枯草芽孢杆菌; 产酶特性; 消化率; 益生特性

Abstract:

The purpose of this study was to investigate the property of antibacterial, production of enzymes, tolerance and in vitro digestibility of 11 Bacillus subtilis strains.9 Bacillus subtilis strains were screened out according to antibacterial property and production of enzymes. After tests of heat, pH tolerance, artificial gastrointestinal fluid and pig bile salt,6 Bacillus subtilis strains had good performance in simulation of animal digestive tract and strong heat tolerance in the process of production. Meanwhile, 5 strains BLCC1-1, BLCC1-2, BLCC1-3,BLCC1-4 and BLCC1-6 had good digestion effects on different combinations of feeds. Based on the above results,it suggested that BLCC1-1, BLCC1-2, BLCC1-4 and BLCC1-6 had excellent production of enzymes, tolerance and in vitro digestibility, which might be suitable for using as feed additives and further research.

Key words: Bacillus subtilis; characteristics of enzymes production; digestibility; probiotic characteristics

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