Browse by author
Lookup NU author(s): Dr Christopher Vane, Dr Geoffrey AbbottORCiD
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
The oyster mushroom (Pleurotus ostreatus) is widely cultivated on wheat straw (Triticum aestivum); however, there is a need to better understand the relationship between the chemical composition of the compost and mushroom growth. Wheat straw was degraded over a period of 63 days by P. ostreatus during which time it was sampled at weekly intervals. Off-line thermochemolysis with tetramethylammonium hydroxide and solid-state C-13 NMR were then used in the molecular characterization of the undegraded wheat straw and the degraded samples. The degraded wheat straw samples had a lower proportion of syringyl- to guaiacyl-derived moieties and cinnamyl- to guaiacyl-derived moieties than the undegraded control. There were increases in both guaiacyl and syringyl acid to aldehyde ratios with composting time, which showed that side-chain oxidation has been mediated by P. ostreatus. The C-13 NMR spectra confirmed the increase in carboxyl content but indicated that the overall lignin and methoxyl contents remained relatively constant, although some nonsystematic variations were observed. The spectra also showed a decrease in amorphous noncellulosic polysaccharides in relation to the crystalline cellulose upon degradation.
Author(s): Vane CH, Martin SC, Snape CE, Abbott GD
Publication type: Article
Publication status: Published
Journal: Journal of Agricultural and Food Chemistry
Year: 2001
Volume: 49
Issue: 6
Pages: 2709-2716
ISSN (print): 0021-8561
ISSN (electronic): 1520-5118
URL: http://dx.doi.org/10.1021/jf001409a
DOI: 10.1021/jf001409a
Altmetrics provided by Altmetric
