Molecular Nutrition

Effects of White Rot Fungi on Nutritional Value and Antioxidant Property of Corn Stover

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  • 1. Northeast Institute of Geography and Agriecology, Chinese Academy of Sciences, Changchun 130102, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2017-05-06

  Online published: 2017-10-31

Abstract

This experiment was conducted to investigate the effects of white rot fungi on nutritional value and antioxidant property of corn stover. Four Pleurotus white rot fungi were selected:Pleurotus diamor, Pleurotus citrinopileatus, Pleurotus eryngii and Pleurotus sajor caju. The corn stover in control group was not inoculated any strain, and corn stover in experimental groups was inoculated 4 kinds of Pleurotus white rot fungi, each group contained 3 replicates, solid-state fermented for 20 days. Some parameters including nutrient component content, in vitro dry matter digestibility (IVDMD) of corn stover and antioxidant property were studied. The results showed as follows:1) the total organic matter (TOM) loss rate of Pleurotus diamor group was significantly higher than that of Pleurotus citrinopileatus and Pleurotus eryngii groups (P<0.05), the acid detergent lignin (ADL) loss rate of Pleurotus sajor caju group was significantly higher than that of other groups (P<0.05), the cellulose (CL) loss rate of Pleurotus citrinopileatus group was significantly higher than that of Pleurotus eryngii and Pleurotus sajor caju groups (P<0.05), the hemicelluloses (HC) loss rate of Pleurotus citrinopileatus group was significantly higher than that of other groups (P<0.05). 2) The crude protein (CP) content of Pleurotus citrinopileatus group was significantly higher than that of control group (P<0.05), the ether extract (EE) content of Pleurotus citrinopileatus, Pleurotus sajor caju and Pleurotus diamor groups was significantly higher than that of control group (P<0.05), the total amino acid content of 4 kinds of white rot fungi groups was significantly higher than that of control group (P<0.05), the IVDMD of 4 kinds of white rot fungi groups was significantly higher than that of control group (P<0.05). 3) The 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical cleaning capacity, reducing power, total antioxidant capacity and total phenolic content of 4 kinds of white rot fungi groups was significantly higher than that of control group (P<0.05). In conclusion, white rot fungi pretreatment with corn stover can improve the IVDMD, CP content and antioxidant property of corn stover, and it can be used as a novel feed resource for ruminant animals.

Cite this article

WANG Yuqiong, ZHOU Daowei . Effects of White Rot Fungi on Nutritional Value and Antioxidant Property of Corn Stover[J]. Chinese Journal of Animal Nutrition, 2017 , 29(11) : 4108 -4115 . DOI: 10.3969/j.issn.1006-267x.2017.11.033

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