Effect of Pulsed Light Irradiation on Bioactive, Nonvolatile Components and Antioxidant Properties of Caterpillar Medicinal Mushroom <i>Cordyceps militaris</i> (Ascomycetes)

Shih-Jeng Huang; Fu-Kuei  Huang; Agnes  Purwidyantri; Arif  Rahmandita; Shu-Yao Tsai

doi:10.1615/IntJMedMushrooms.v19.i6.60

Início > Diários > International Journal of Medicinal Mushrooms > Volume 19, 2017 Edição 6 > Effect of Pulsed Light Irradiation on Bioactive, Nonvolatile Components and Antioxidant Properties of Caterpillar Medicinal Mushroom Cordyceps militaris (Ascomycetes)

ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.v19.i6.60
pages 547-560

Effect of Pulsed Light Irradiation on Bioactive, Nonvolatile Components and Antioxidant Properties of Caterpillar Medicinal Mushroom Cordyceps militaris (Ascomycetes)

Shih-Jeng Huang
Department of Health Food, Chung Chou University of Science and Technology, Yuanlin, Changhua 51003, Taiwan, Republic of China

Fu-Kuei Huang
Department of Neonatology, Children's Hospital, China Medical University Hospital, China Medical University, Taichung, Taiwan, ROC

Agnes Purwidyantri
Department of Biotechnology, Asia University, Wufeng, Taichung, Taiwan, ROC

Arif Rahmandita
Department of Biotechnology, Asia University, Wufeng, Taichung, Taiwan, ROC

Shu-Yao Tsai
Department of Food Nutrition and Health Biotechnology, Asia University, Wufeng, Taichung, Taiwan, Republic of China; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, Republic of China

RESUMO

The caterpillar medicinal mushroom Cordyceps militaris contains many bioactive components, such as adenosine, cordycepin, and polysaccharides. In this study, C. militaris was exposed to 0, 3, 6, or 9 pulses of light irradiation to estimate changes in vitamin D₂, bioactive compounds, nonvolatile taste components, and antioxidant properties. In addition, we compared the components and properties of C. militaris mycelia and solid waste medium that had been treated with pulsed light (PL) irradiation. Overall, PL irradiation of C. militaris increased the vitamin D₂ content and increased the total amino acid levels 9-48%; the antioxidant properties of the mycelia treated with 0 pulses and of the solid waste medium treated with 3 pulses all exhibited lower half-maximal effective concentrations. Therefore, PL irradiation affected the amounts of bioactive compounds, but the irradiated samples still contained intense umami taste and a sufficient amount of antioxidant components.

Palavras-chave: antioxidant properties, bioactive components, Cordyceps militaris, medicinal mushrooms and fungi, nonvolatile components, pulsed light irradiation

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