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Xylanase from Pleurotus ostreatus SYJ-042 Degrades Hemicellulose and Ameliorates Intestinal Microeological Balance

LI Tian-ge1,YUE Xiao-yu2,3,*,LI Zi-gang2,CAI Qing-he3   

  1. 1. College of Food Science, Sichuan Agricultural University, Ya’an 625014, China;
    2. Department of Quality Detection and Management, Henan College of Animal Husbandry and Economy, Zhengzhou 450011, China;
    3. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Online:2013-09-15 Published:2013-09-27
  • Contact: YUE Xiao-yu

Abstract:

Xylanase has a promising potential of applications in the feed industry as well as the food and pulp industry. These
applications of xylanase from Pleurotus ostreatus SYJ-042 were investigated. The results showed that the degradation of
hemicellulose in pear pericarp was gradually increased with reaction time. The degradation rate at 5 h reached 62.44%. Animal
experiments showed that the experimental group fed on xylanase-containing wheat diet had a higher food intake than the control
group and the difference was significant. The daily weight gain was also higher than that of the control group and a significant
difference was observed (P < 0.01). However, the dietary hemicellulose degradation rate in the experimental group compared
with the control group did not differ significantly. Administration of xylanase-containing diet also decreased the total bacterial
count in the jejunum and colon (P < 0.01) without resulting in a significant difference for the cecum (P < 0.01). In conclusion,
the xylanase was beneficial to remove the pericarp, promote the growth of rats, and maintain intestinal microecological balance.

Key words: white-rot fungi, xylanase, application

CLC Number: