《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (10): 2897-2907.doi: 10.16431/j.cnki.1671-7236.2017.10.010

• 动物营养与饲料科学 • 上一篇    下一篇

动物益生菌短短芽胞杆菌FJAT-1501-BPA制剂的制备及其益生特性评价

车建美, 刘波, 刘国红, 陈倩倩, 葛慈斌, 蓝江林, 叶少文   

  1. 福建省农业科学院农业生物资源研究所, 福州 350003
  • 收稿日期:2017-04-05 出版日期:2017-10-20 发布日期:2017-10-20
  • 通讯作者: 刘波 E-mail:fzliubo@163.com
  • 作者简介:车建美(1977-),女,山东乳山人,博士,副研究员,研究方向:微生物生物技术、微生物保鲜,E-mail:chejm2002@163.com
  • 基金资助:

    福建省自然科学基金项目(2014J06012);农业部公益性行业(农业)科研专项(201303094);福建省农业科学院青年英才计划项目(YC2015-7);福建省属公益性项目(2015R1101012-9)

Preparation of Brevibacillus brevis FJAT-1501-BPA and Its Evaluation as Probiotic

CHE Jian-mei, LIU Bo, LIU Guo-hong, CHEN Qian-qian, GE Ci-bin, LAN Jiang-lin, YE Shao-wen   

  1. Agricultural Bio-Resources Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
  • Received:2017-04-05 Online:2017-10-20 Published:2017-10-20

摘要:

为优化短短芽胞杆菌FJAT-1501-BPA胶悬剂配方,获得性状稳定可长期贮存的菌剂,同时对其作为益生菌进行益生特性评价,本试验研究了不同稳定剂、pH、NaCl及防腐剂浓度对短短芽胞杆菌FJAT-1501-BPA发酵液保存特性的影响,并对其产芽孢率、耐热性、抗生素敏感性、人工胃肠液耐受性、胆盐耐受性等生物学特性进行评估。结果显示,添加4% NaCl、0.1‰柠檬酸钙、0.1‰双乙酸钠、0.1‰山梨酸钾、2.0‰黄原胶,调节pH为7,可作为短短芽胞杆菌FJAT-1501-BPA胶悬剂保存的参考条件。短短芽胞杆菌FJAT-1501-BPA能够抑制沙门氏菌、大肠杆菌、金黄色葡萄球菌3种动物肠道病原菌的生长,具有产孢率高、耐热、耐酸、耐胆盐的特点,可与链霉素、氨苄西林同时使用,益生效果良好。因此,短短芽胞杆菌FJAT-1501-BPA可作为益生菌菌株应用于畜牧生产。

关键词: 短短芽胞杆菌; 人工胃液; 人工肠液; 菌剂; 抗生素

Abstract:

The composition of colloidal suspension agent of Brevibacillus brevis FJAT-1501-BPA was optimized to obtain the stable long-term storage agent,at the same time,the evaluation of this strain as a probiotic strain was conducted in this paper. The effects of different stabilizers,pH,NaCl and preservative concentrations on the preservation characteristics of this strain were studied. And spore yield,heat resistance,antibiotic sensitivity,artificial gastrointestinal tolerance,bile salt tolerance and other biological characteristics of Brevibacillus brevis FJAT-1501-BPA as a probiotic strain were evaluated. The results showed that the colloidal suspension agent of Brevibacillus brevis FJAT-1501-BPA was composed of 4% NaCl,0.1‰ calcium citrate,0.1‰ sodium diacetate,0.1‰ potassium sorbate and 2.0‰ xanthan gum with pH 7.Brevibacillus brevis FJAT-1501-BPA could inhibit the growth of Salmonella, Escherichia coli and Staphylococcus aureus. It had good tolerance to artificial gastric and intestinal juice, 0.3% pig bile salt, high spore production rate and strong heat resistance,and it could be used in conjunction with streptomycin and ampicillin. Therefore,Brevibacillus brevis FJAT-1501-BPA could be used as a probiotic strain in livestock production.

Key words: Brevibacillus brevis; artificial gastric juice; artificial intestinal fluid; microbial agent; antibiotic

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