酵母粉对出芽短梗霉发酵普鲁兰多糖相对分子质量的影响

doi:10.3969/j.issn.1673-1689.2018.01.013

首页 > 过刊浏览>2018年第37卷第1期 >76-81. DOI:10.3969/j.issn.1673-1689.2018.01.013

酵母粉对出芽短梗霉发酵普鲁兰多糖相对分子质量的影响
DOI:
                        10.3969/j.issn.1673-1689.2018.01.013
                    
作者:
                        
                        
                    
作者单位:
作者简介:
通讯作者:
中图分类号:TS218
基金项目:

Effects of Yeast Extract on Pullulan Molecular Weight by Aureobasidium pullulans

Author:

Affiliation:

Fund Project:

摘要

图/表

访问统计

参考文献

相似文献

引证文献

资源附件

文章评论

摘要:

以出芽短梗霉（Aureobasidium pullulans）CGMCC.11062为出发菌株，研究了不同质量浓度酵母粉对普鲁兰多糖产量、结构及相对分子质量的影响。结果表明酵母粉质量浓度对出芽短梗霉的产量和相对分子质量影响显著，而普鲁兰多糖的结构基本不受其影响。在未加酵母粉时，菌体质量浓度5.92 g/L，普鲁兰多糖产量34.74 g/L，残糖质量浓度44.18 g/L，而当酵母粉质量浓度为1.5 g/L时，普鲁兰多糖的产量出现最大峰值，达到了61.32 g/L，然而，过多的酵母粉供给造成了碳源流向生物体，普鲁兰多糖产量减少。未加酵母粉时生产的普鲁兰多糖相对分子质量最大，重均相对分子质量Mw为529 528，随着酵母粉质量浓度的增加，生成的普鲁兰多糖相对分子质量逐渐降低，重均相对分子质量Mw从529 528降低到183 278，表明酵母粉可能会诱导普鲁兰多糖降解酶的产生，并导致普鲁兰多糖相对分子质量及产量的降低。这些研究为不同特性普鲁兰多糖的生产提供技术指导。

Abstract:

The effect of different concentration of yeast extract on pullulan yield，structure，and molecular weight ware studied by using Aureobasidium pullulans CGMCC 11062. The results showed that the pullulan yield and molecular weight were significantly influenced but the structure had not been effected by different concentration of yeast extract. The contents of biomass，pullulan and residual sugar were respectively 5.29 g/L，34.74 g/L，44.18 g/L，when yeast extract were absent in the medium. The highest yield could reach 61.32 g/L，when the concentration of yeast extract was 1.5 g/L. Nevertheless，excessive yeast powder supply caused carbon source flowing to the organism，pullulan yield reduction. The maximal molecular weight of pullulan were produced with no yeast extract medium，which is 529 528 Da. With the increase of the concentration of yeast powder，the pullulan molecular weight gradually decreased from 529 528 reduced to 183 278. The results showed that the yeast extract may induce pullulan degrading enzymes，and lead to the decrease of the yield and molecular weight. These studies could provide technical guidance for the different pullulan production.

参考文献

相似文献

引证文献

引用本文

安超,马赛箭,常帆,上官亦卿,丁浩,薛文娇.酵母粉对出芽短梗霉发酵普鲁兰多糖相对分子质量的影响[J].食品与生物技术学报,2018,37(1):76-81.

AN Chao, MA Saijian, CHANG Fan, SHANGGUAN Yiqing, DING Hao, XU Wenjiao. Effects of Yeast Extract on Pullulan Molecular Weight by Aureobasidium pullulans[J]. Journal of Food Science and Biotechnology,2018,37(1):76-81.

复制

文章指标

点击次数:
下载次数:
HTML阅读次数:
引用次数:

历史

收稿日期:
最后修改日期:
录用日期:
在线发布日期: 2018-03-08
出版日期:

地址：江苏省无锡市蠡湖大道1800号邮政编码：214122

电话：0510-85913526 电子邮件：xbbjb@jiangnan.edu.cn

技术支持：北京勤云科技发展有限公司

引用本文

分享

文章指标

历史

微信公众号二维码

手机版网站二维码