文献类型：期刊文献

英文题名：Optimized biosynthesis of xanthan via effective valorization of orange peels using response surface methodology: A kinetic model approach

作者：Mohsin, Ali[1];Zhang, Kuipu[1];Hu, Junlang[1];Salim-ur-Rehman[3];Tariq, Muhammad[2];Zaman, Waqas Qamar[2];Khan, Imran Mahmood[3];Zhuang, Yingping[1];Guo, Meijin[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Environm Engn, Shanghai 200237, Peoples R China;[3]Univ Agr Faisalabad, Natl Inst Food Sci & Technol, Faisalabad 38040, Pakistan

年份：2018

卷号：181

起止页码：793

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20174804459669);WOS:【SCI-EXPANDED(收录号:WOS:000418661000092)】；

基金：This research was supported from the National Natural Science Foundation of China (81373286) and National Basic Research Program of China (2011CBA00800).

语种：英文

外文关键词：Xanthan gum; Orange peel; Fermentation; Response surface methodology and kinetic analysis

摘要：Herein, an enhanced green production of xanthan gum has been achieved by utilizing orange peels. Response surface methodology and kinetic modeling were adapted for the process optimization and its influence on scale up production respectively. Optimal conditions for the maximum xanthan production were 1.62% acid hydrolysis, 85% carbon source of orange peel hydrolysate and 30.4 degrees C temperature. Furthermore, the optimized treatment was conducted in the batch culture fermentor to observe the associated variations during scale up process. In bio-fermentor, to the first time ever, xanthan production along with reducing sugar conversion and utilization rates reached 30.19 g/L, 69.29% and 99.99%, respectively. Employed characterization techniques of FTIR, XRD and HPLC confirmed the fermented product as xanthan gum and obtained an average molecular weight of 1.01 x106 g/mol. This work on account of optimized process parameters presented maximum xanthan production from a waste material.