Optimization on Solid State Fermentation Conditions of Producing Polypeptide Feed from High-temperature Soybean Meal(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2011年02期

Page:

285-289

Research Field:

Publishing date:

Info

Title:

Optimization on Solid State Fermentation Conditions of Producing Polypeptide Feed from High-temperature Soybean Meal

Author(s):

LIU Xiao-yan¹; YU Chun-miao¹; GUO Li-dong¹; YANG Guo-li² ; YANG Qing-yu²

1.College of Pharmacy，Heilongjiang University of Traditional Chinese Medicine, Harbin 150030；

2.Key Laboratory of Processing Agricultural Products of Heilongjiang Province, College of Food Science and Engineering, Qiqihaer University, Qiqihar 161006, Heilongjiang，China

Keywords:

High-temperature soybean meal;  Polypeptide;  Bacillus subtilis;  Solid-state fermentation

PACS:

TS201

DOI:

10.11861/j.issn.1000-9841.2011.02.0285

Abstract:

The optimal solid state fermentation conditions of polypeptide production feed with Bacillus subtilis from high-temperature soybean meal were studied in this paper. The effects of medium composition on the yield of polypeptide were studied respectively. The orthogonal experiment was designed to obtain optimal fermentation medium, which were soybean meal∶wheat meal 2∶1, adding 110% water and 4% molasses. The effects of fermentation factors on the yield of polypeptide were studied, respectively. The optimal solid state fermentation conditions obtained from response surface methodology were inoculated with 15% of Bacillus subtilis and fermented at 34℃for 72 h, the production rate of soybean polypeptides could reach 46.29%.

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