Production of nano bacterial cellulose from waste water of candied jujube-processing industry using Acetobacter xylinum

Zheng Li; Lifen Wang; Jiachuan Hua; Shiru Jia; Jianfei Zhang; Hao Liu

doi:10.1016/j.carbpol.2014.11.061

Production of nano bacterial cellulose from waste water of candied jujube-processing industry using Acetobacter xylinum

Carbohydr Polym. 2015 Apr 20:120:115-9. doi: 10.1016/j.carbpol.2014.11.061. Epub 2014 Dec 9.

Authors

Zheng Li¹, Lifen Wang², Jiachuan Hua², Shiru Jia³, Jianfei Zhang⁴, Hao Liu²

Affiliations

¹ School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; Key Laboratory of Advanced Textile Composites (Tianjin Polytechnic University), Ministry of Education, Tianjin 300387, China. Electronic address: lizheng_nx@163.com.
² School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; Key Laboratory of Advanced Textile Composites (Tianjin Polytechnic University), Ministry of Education, Tianjin 300387, China.
³ School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China.
⁴ School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; Key Laboratory of Advanced Textile Composites (Tianjin Polytechnic University), Ministry of Education, Tianjin 300387, China. Electronic address: zhangjianfei1960@126.com.

PMID: 25662694
DOI: 10.1016/j.carbpol.2014.11.061

Abstract

The work is aimed to investigate the suitability of waste water of candied jujube-processing industry for the production of bacterial cellulose (BC) by Gluconacetobacter xylinum CGMCC No.2955 and to study the structure properties of bacterial cellulose membranes. After acid pretreatment, the glucose of hydrolysate was higher than that of waste water of candied jujube. The volumetric yield of bacterial cellulose in hydrolysate was 2.25 g/L, which was 1.5-folds of that in waste water of candied jujube. The structures indicated that the fiber size distribution was 3-14 nm in those media with an average diameter being around 5.9 nm. The crystallinity index of BC from pretreatment medium was lower than that of without pretreatment medium and BCs from various media had similar chemical binding. Ammonium citrate was a key factor for improving production yield and the crystallinity index of BC.

Keywords: Acetobacter xylinum; Bacterial cellulose; Candied jujube; Pretreatment; Waste water.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Cellulose / chemistry*
Cellulose / economics
Gluconacetobacter xylinus / metabolism*
Membranes / chemistry*
Wastewater / chemistry
Ziziphus / chemistry

Substances

Waste Water
Cellulose