Open AccessComparison of productivity and quality of bacterial nanocellulose synthesized using culture media based on seven sugars from biomass
Author(s) -
Chen Genqiang,
Wu Guochao,
Chen Lin,
Wang Wei,
Hong Feng F.,
Jönsson Leif J.
Publication year - 2019
Publication title -
microbial biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.287
H-Index - 74
ISSN - 1751-7915
DOI - 10.1111/1751-7915.13401
Subject(s) - biomass (ecology) , xylose , sugar , food science , bacterial cellulose , hydrolysate , crystallinity , chemistry , nanocellulose , yield (engineering) , carbon fibers , productivity , maltose , sucrose , pulp and paper industry , botany , cellulose , materials science , fermentation , biochemistry , biology , hydrolysis , agronomy , composite material , composite number , crystallography , engineering , macroeconomics , economics
Summary Komagataeibacter xylinus ATCC 23770 was statically cultivated in eight culture media based on different carbon sources, viz. seven biomass‐derived sugars and one sugar mixture. The productivity and quality of the bacterial nanocellulose ( BNC ) produced in the different media were compared. Highest volumetric productivity, yield on consumed sugar, viscometric degree of polymerization ( DP v , 4350–4400) and thermal stability were achieved using media based on glucose or maltose. Growth in media based on xylose, mannose or galactose resulted in lower volumetric productivity and DP v , but in larger fibril diameter and higher crystallinity (76–78%). Growth in medium based on a synthetic sugar mixture resembling the composition of a lignocellulosic hydrolysate promoted BNC productivity and yield, but decreased fibril diameter, DP v , crystallinity and thermal stability. This work shows that volumetric productivity, yield and properties of BNC are highly affected by the carbon source, and indicates how industrially relevant sugar mixtures would affect these characteristics.