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Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576

A novel lignocellulose material, holocellulose from rice straw via the pretreatment of SO(3) micro-thermal explosion, was developed to produce sophorolipids (SLs) with Wickerhamiella domercqiae var. sophorolipid CGMCC 1576. The influence factors of inoculum dose, yeast extract concentration and pH r...

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Autores principales: Liu, Xin-ge, Ma, Xiao-jing, Yao, Ri-sheng, Pan, Chun-yu, He, Hua-bing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5002273/
https://www.ncbi.nlm.nih.gov/pubmed/27568226
http://dx.doi.org/10.1186/s13568-016-0227-7
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author Liu, Xin-ge
Ma, Xiao-jing
Yao, Ri-sheng
Pan, Chun-yu
He, Hua-bing
author_facet Liu, Xin-ge
Ma, Xiao-jing
Yao, Ri-sheng
Pan, Chun-yu
He, Hua-bing
author_sort Liu, Xin-ge
collection PubMed
description A novel lignocellulose material, holocellulose from rice straw via the pretreatment of SO(3) micro-thermal explosion, was developed to produce sophorolipids (SLs) with Wickerhamiella domercqiae var. sophorolipid CGMCC 1576. The influence factors of inoculum dose, yeast extract concentration and pH regulators (chemical regents used for adjusting/influencing pH) was investigated and discussed. Results showed that W. domercqiae can grow in the rice straw holocellulose hydrolysate, and acquire relative high SL yield of 53.70 ± 2.61 g/L in shake flask culture. Inoculum dose, yeast extract concentration and pH regulator made obvious influence on fermentation parameters, especially on final broth pH and SLs production. Furthermore, there is a strong negative linear correlation existing between final broth pH and lactonic SL or ratio of lac SL/tot SL. Additionally, comparison between SL production and non-glucose carbon sources, culture methods, microbes in previous reports was carried out. These results will be benefit for acquiring SL mixture with suitable lac SL/tot SL ratio for specific purpose and scope economically.
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spelling pubmed-50022732016-09-13 Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576 Liu, Xin-ge Ma, Xiao-jing Yao, Ri-sheng Pan, Chun-yu He, Hua-bing AMB Express Original Article A novel lignocellulose material, holocellulose from rice straw via the pretreatment of SO(3) micro-thermal explosion, was developed to produce sophorolipids (SLs) with Wickerhamiella domercqiae var. sophorolipid CGMCC 1576. The influence factors of inoculum dose, yeast extract concentration and pH regulators (chemical regents used for adjusting/influencing pH) was investigated and discussed. Results showed that W. domercqiae can grow in the rice straw holocellulose hydrolysate, and acquire relative high SL yield of 53.70 ± 2.61 g/L in shake flask culture. Inoculum dose, yeast extract concentration and pH regulator made obvious influence on fermentation parameters, especially on final broth pH and SLs production. Furthermore, there is a strong negative linear correlation existing between final broth pH and lactonic SL or ratio of lac SL/tot SL. Additionally, comparison between SL production and non-glucose carbon sources, culture methods, microbes in previous reports was carried out. These results will be benefit for acquiring SL mixture with suitable lac SL/tot SL ratio for specific purpose and scope economically. Springer Berlin Heidelberg 2016-08-27 /pmc/articles/PMC5002273/ /pubmed/27568226 http://dx.doi.org/10.1186/s13568-016-0227-7 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Liu, Xin-ge
Ma, Xiao-jing
Yao, Ri-sheng
Pan, Chun-yu
He, Hua-bing
Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576
title Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576
title_full Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576
title_fullStr Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576
title_full_unstemmed Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576
title_short Sophorolipids production from rice straw via SO(3) micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576
title_sort sophorolipids production from rice straw via so(3) micro-thermal explosion by wickerhamiella domercqiae var. sophorolipid cgmcc 1576
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5002273/
https://www.ncbi.nlm.nih.gov/pubmed/27568226
http://dx.doi.org/10.1186/s13568-016-0227-7
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