| Literature DB >> 25662694 |
Zheng Li1, Lifen Wang2, Jiachuan Hua2, Shiru Jia3, Jianfei Zhang4, Hao Liu2.
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.Entities:
Keywords: Acetobacter xylinum; Bacterial cellulose; Candied jujube; Pretreatment; Waste water
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Year: 2014 PMID： 25662694 DOI： 10.1016/j.carbpol.2014.11.061
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381