《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (1): 12-21.doi: 10.16431/j.cnki.1671-7236.2017.01.002

• 生物技术 • 上一篇    下一篇

枯草芽孢杆菌发酵金樱子的工艺优化

武洪志1, 王芳芳1, 许灵敏1, 宋建楼1, 陈美霞2, 刁华杰1, 许丽1, 刁新平1   

  1. 1. 东北农业大学动物科学技术学院, 哈尔滨 150030;
    2. 高唐六和荣达饲料有限公司, 聊城 252800
  • 收稿日期:2016-06-23 出版日期:2017-01-20 发布日期:2017-01-19
  • 通讯作者: 许丽, 刁新平 E-mail:xuli_19621991@163.com;diaoxp63@163.com
  • 作者简介:武洪志(1986-),男,河南濮阳人,博士生,研究方向:动物营养与饲料科学,E-mail:hong-zhi@163.com
  • 基金资助:

    国家科技支撑计划(2014BAD13B03-1)

Process Optimization of Bacillus subtilis fermented Rose laevigata michx

WU Hong-zhi1, WANG Fang-fang1, XU Ling-min1, SONG Jian-lou1, CHEN Mei-xia2, DIAO Hua-jie1, XU Li1, DIAO Xin-ping1   

  1. 1. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China;
    2. Gaotang Six and Rongda Feed Co., Ltd., Liaocheng 252800, China
  • Received:2016-06-23 Online:2017-01-20 Published:2017-01-19

摘要:

试验旨在研究枯草芽孢杆菌发酵金樱子饲料添加剂的最佳工艺。通过单因素和响应面相结合的试验方法对枯草芽孢杆菌发酵金樱子生产工艺进行优化。选用枯草芽孢杆菌对中草药金樱子进行发酵,以金樱子多糖含量为检测指标,在碳源、氮源、含水量、接种量和发酵时间5个单因素的基础上选择对发酵效果影响较大的关键因素,进行响应面试验来进一步优化。结果表明,5个单因素中,含水量、接种量和发酵时间对发酵效果影响较大,为关键因素,经响应面法进一步优化后得出最佳条件为:含水量为53.79%、接种量为5.74%、发酵时间为2 d,此条件下测得金樱子多糖平均值为15.47%,与响应面预测值15.36%接近。相较于未发酵金樱子中10.49%的金樱子多糖,发酵后金樱子多糖提高了47.47%。此发酵工艺简单易操作,发酵效果显著,可为安全绿色饲料添加剂的研制提供理论依据。

关键词: 枯草芽孢杆菌; 金樱子; 饲料添加剂; 发酵; 工艺优化

Abstract:

The aim of this experiment was to study the optimum process of Rose laevigata michx fermented by Bacillus subtilis. The process of Bacillus subtilis fermented Rose laevigata michx was optimized by test method combining single factor and response surface.The Rosa laevigata michx polysaccharide content was chosen as indexes and the key factors which had greater impact on ferment effect were selected from carbon source,nitrogen source,water content,inoculation amout and fermentation time for further optimize by response surface. The results showed that water content,inoculation amount and fermentation time were the key factors among the five single factors. When the water content was 53.79%,inoculation amount was 5.74%,fermentation time was 2 days,the average content of Rosa laevigata michx polysaccharide was 15.47% which closed to predicted value (15.36%).Compared with the polysaccharide content in unfermented Rosa laevigata michx,that of fermented Rosa laevigata michx was increased 47.47%. The fermentation process was simple and easy to operate with remarkable fermentation effect,and it could provide theoretical basis for the development of the green feed additive.

Key words: Bacillus subtilis; Rosa laevigata michx; feed additive; fermentation; process optimization

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