Effects of substrates and drying methods on antioxidant compound and antioxidant activity of fruiting body extracts of two oyster mushrooms (Pleurotus ostreatus and Pleurotus cystidiosus)

Hoa H. T., . and Wang C. H., . and Tam N. V., . and Wang C. L., . Effects of substrates and drying methods on antioxidant compound and antioxidant activity of fruiting body extracts of two oyster mushrooms (Pleurotus ostreatus and Pleurotus cystidiosus). pp. 1998-2008. ISSN 2231-7546

The study was conducted to compare the effect of different substrate formulas and different fruiting body drying methods on the total phenolic contents (TPC) and total flavonoid contents (TFC) as well as the antioxidant activity of oyster mushroom Pleurotus ostreatus (PO) and Pleurotus cystidiosus (PC). Seven substrate formulas were used: 100 sawdust (SD) 100 sugarcane bagasse (SB) 50 SD50 SB 80 SD20 SB 100 corncob (CC) 50 SD50 CC 80 SD20 CC. Oven-drying and freeze-drying methods were investigated. The antioxidant potential was determined using 1 1- diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity reducing power and chelating ability. The results indicated that the increasing SD ratio in substrate formulas reduced TPC and TFC which in turn decreased antioxidant activity of mushroom PO and PC extracts. In substrates containing higher contents of CC and SB (100 CC 50 CC 100 SB and 50 SB) higher values of TPC TFC as well as high efficiency of DPPH radical scavenging ability reducing power and chelating ability were obtained. These results suggest that CC and SB can be used to partially or entirely replace SD in substrate formulation for oyster mushroom cultivation which will improved its antioxidative capacity. With freeze-drying method PO and PC showed better efficiency in TPC as well as antioxidant activities in comparison with oven-drying method. PO and PC might be used as potential source of natural antioxidants for food supplements as well as in the development of nutraceuticals.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/24%20(05)%202017/(23).p...

Abstract

The study was conducted to compare the effect of different substrate formulas and different fruiting body drying methods on the total phenolic contents (TPC) and total flavonoid contents (TFC) as well as the antioxidant activity of oyster mushroom Pleurotus ostreatus (PO) and Pleurotus cystidiosus (PC). Seven substrate formulas were used: 100 sawdust (SD) 100 sugarcane bagasse (SB) 50 SD50 SB 80 SD20 SB 100 corncob (CC) 50 SD50 CC 80 SD20 CC. Oven-drying and freeze-drying methods were investigated. The antioxidant potential was determined using 1 1- diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity reducing power and chelating ability. The results indicated that the increasing SD ratio in substrate formulas reduced TPC and TFC which in turn decreased antioxidant activity of mushroom PO and PC extracts. In substrates containing higher contents of CC and SB (100 CC 50 CC 100 SB and 50 SB) higher values of TPC TFC as well as high efficiency of DPPH radical scavenging ability reducing power and chelating ability were obtained. These results suggest that CC and SB can be used to partially or entirely replace SD in substrate formulation for oyster mushroom cultivation which will improved its antioxidative capacity. With freeze-drying method PO and PC showed better efficiency in TPC as well as antioxidant activities in comparison with oven-drying method. PO and PC might be used as potential source of natural antioxidants for food supplements as well as in the development of nutraceuticals.

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Item Type:	Article
AGROVOC Term:	Oyster mushroom
AGROVOC Term:	Pleurotus ostreatus
AGROVOC Term:	Antioxidants
AGROVOC Term:	Edible fungi
AGROVOC Term:	Drying
AGROVOC Term:	Extracts
AGROVOC Term:	Colorimetry
AGROVOC Term:	Freeze-drying
AGROVOC Term:	Mushrooms
AGROVOC Term:	Experimental design
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23839

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