Improvement in β-glucan extraction from Ganoderma lucidum with high-pressure steaming and enzymatic pre-treatment
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In this study, the high-pressure steaming and enzymatic pre-treatment (SET) was used to improve β-glucan extraction from Ganoderma lucidum (G. lucidum), an oriental medicinal mushroom. Response surface methodology and central composite design were used to determine the optimum pre-treatment conditions: high-pressure steaming, enzymatic hydrolysis, and Viscozyme L concentrations. The optimal conditions were 15.51 min for high-pressure steaming, 0.84 g/100 mL of Viscozyme L, and 4.16 h for hydrolysis. The predicted β-glucan content in G. lucidum extract at optimal conditions, approximately twofold (8.05 g/100 g) of the control treatment value, was consistent with the empirical value. The total sugar and protein contents through SET were higher than those values of the control treatment. The cell migration assay showed that SET-processed G. lucidum extracts significantly suppressed B16F10 murine melanoma cell growth. SET process using Viscozyme L could be utilized for β-glucan extraction from G. lucidum to develop the functional food.
KeywordsAnti-metastatic effect Ganoderma lucidum β-Glucan Steaming Viscozyme L
This work was supported by the Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry (IPET) through the High Value-added Food Technology Development Program, funded by the Ministry of Agriculture, Food and Rural Affairs (MAFRA) (314070-3), the Government of the Republic of Korea.
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