감마선 조사에 따른 커피박에서 생리활성 물질의 추출 수율 및 활성 비교
Effect of Gamma Irradiation of Spent Coffee Grounds on Extraction Yield and Activity of Extractant
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This study aimed to explore the industrial potential of spent coffee grounds (SCG) as high-valuefunctional materials by applying gamma irradiation. The effects of gamma irradiation on the extraction yield andbioactivity of functional components were comprehensively evaluated. Results showed that the protein extractionyield from irradiated SCG significantly increased in a dose-dependent manner, with over 26% improvement comparedto the non-irradiated control. Furthermore, the extracted proteins exhibited enhanced antioxidant activity, with2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity increasing by approximately 27% at the sameconcentration. Moreover, the content of phenolic compounds, key bioactive substances in SCG, also rose significantlywith increasing irradiation dose, showing up to a 38% increase in extraction yield. These findings demonstratethat gamma irradiation can physically and chemically enhance the extraction of functional components from SCG,offering a promising strategy to elevate its value as a material for functional foods or cosmetics.
Abstract
This study aimed to explore the industrial potential of spent coffee grounds (SCG) as high-valuefunctional materials by applying gamma irradiation. The effects of gamma irradiation on the extraction yield andbioactivity of functional components were comprehensively evaluated. Results showed that the protein extractionyield from irradiated SCG significantly increased in a dose-dependent manner, with over 26% improvement comparedto the non-irradiated control. Furthermore, the extracted proteins exhibited enhanced antioxidant activity, with2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity increasing by approximately 27% at the sameconcentration. Moreover, the content of phenolic compounds, key bioactive substances in SCG, also rose significantlywith increasing irradiation dose, showing up to a 38% increase in extraction yield. These findings demonstratethat gamma irradiation can physically and chemically enhance the extraction of functional components from SCG,offering a promising strategy to elevate its value as a material for functional foods or cosmetics.