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甘蔗糖蜜预处理对产L-苹果酸的影响与培养基N源添加

李永成 钟秋平

食品工业科技Issue(1):178-180,3.
食品工业科技Issue(1):178-180,3.

甘蔗糖蜜预处理对产L-苹果酸的影响与培养基N源添加

Effects of cane molasses pre-treantment on L-malic acid production and N addition in medium

李永成 1钟秋平1

作者信息

  • 1. 海南大学食品学院,海南海口570228
  • 折叠

摘要

Abstract

Effects of cane molasses pre-treated with boiling ,active carbon, potassium ferrocyanide, phosphate and sulfate on L- malic acid production and Aspergillus flavus growth, and N addition in medium was studied. The biomass size order of Aspergillus flavus cultured with pre-treated cane molasses was by sulfate > phosphate > potassium ferrocyanide > active carbon > boiling. The colloidal substances were effectively removed by sulfate. The biomass of Aspergillus flavus cultured with cane molasses pre-treated by sulfate was 25% higher than that by boiling. It was favorable for L-malic acid accumulation in Aspergillus flavus when the cane molasses was mixtreated with sulfate and potassium ferrocyanide, and L-malic acid accumulated to 59.6g/LNH4 (SO4)2 of 1g/L was required in cane molasses medium, and the adaptive formula(g/L) was sugar 120, NH4 ( SO4 )2 1, K2HPO4 0.15, KH2 PO4 0.15, CaCO3 70, pH 5.5.

关键词

L-苹果酸/甘蔗糖蜜/黄曲霉

分类

通用工业技术

引用本文复制引用

李永成,钟秋平..甘蔗糖蜜预处理对产L-苹果酸的影响与培养基N源添加[J].食品工业科技,2011,(1):178-180,3.

基金项目

华南热带农业大学科技基金资助(RND0420). (RND0420)

食品工业科技

OA北大核心CSCDCSTPCD

1002-0306

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