中国畜牧兽医

• 动物营养与饲料科学 • 上一篇    下一篇

混合菌种发酵苹果渣生产蛋白饲料的工艺参数优化研究

薛祝林1,黄必志2   

  1. 1.云南农业大学草业科学系,云南昆明 650201;2.云南省草地动物科学研究院,云南昆明 650212)
  • 收稿日期:2013-09-12 出版日期:2014-03-20 发布日期:2014-05-15
  • 通讯作者: 黄必志(1964—),男,云南人,博士,研究员,研究方向:草地畜牧业。E-mail:hbz@ynbp.cn
  • 作者简介:薛祝林(1988—),男,河南人,硕士生,研究方向:牧草生产与加工。
  • 基金资助:

    国家肉牛牦牛产业技术体系“国家现代农业产业技术体系建设”(CARS-38)。

Study on Favorable Protein Production Parameters from Apple Residue Fermented by Mixed Strains

XUE Zhu-lin1, HUANG Bi-zhi2   

  1. 1.Department of Grass Science, Yunnan Agricultural University, Kunming 650201, China;2.Yunnan Academy of Grassland and Animal Science, Kunming 650212, China)
  • Received:2013-09-12 Online:2014-03-20 Published:2014-05-15

摘要: 本试验旨在研究2种不同菌剂(枯草芽孢杆菌和啤酒酵母)接种苹果渣原料进行微生物发酵的效果,并对混合菌种发酵结果的影响条件进行分析比较。通过3因素(浆料比、接种量、pH)正交试验设计,测定发酵产物中真蛋白质含量。结果表明,枯草芽孢杆菌和啤酒酵母混合菌种最佳发酵条件下真蛋白质含量最高,可达到13.58%,混合菌种发酵对产物中真蛋白质含量影响最大的因素是浆料比,其次是pH,推荐发酵参数为浆料比1.0∶1、枯草芽孢杆菌接种量3%、pH 5。酵母与菌剂之间呈协同作用可进一步提高发酵苹果渣中真蛋白质含量。

关键词: 苹果渣; 发酵; 饲料蛋白质

Abstract: This paper aims at studying the microbial fermentation effect of two different bacterial inoculants, Bacillus subtilis and beer yeast, respectively, which were vaccinated on apple residue, then analying and comparing related influential conditions for mixed strains fermentation. Their true protein content in fermented materials were calculated through three factors orthogonal test level (size ratio, inoculation quantity, pH).The results showed that the true protein content of mixed strains of Bacillus subtilis and beer yeast could reach up to 13.58%, and the biggest influenced factor was size ratio, followed by pH, recommending to fermentation parameters of size ratio at 1.0∶1, inoculation quantity of Bacillus subtilis with 3%, pH 5.The content of true protein may be further improved if yeast and bacteria agent was synergic at fermented apple residue.

Key words: apple residue; fermentation; feed protein