KMID : 0380620100420010090
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Korean Journal of Food Science and Technology 2010 Volume.42 No. 1 p.90 ~ p.96
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Physiological Activity and Nutritional Composition of Pleurotus Species
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Um Su-Na
Jin Gyoung-Ean Park Kye-Won Yu Young-Bok Park Ki-Moon
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Abstract
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In this study, the anti-oxidant, anti-tumorigenic, anti-hypertensive, anti-thrombic, anti-diabetic, and antiinflammatory properties of 18 different species of genus Pleurotus were investigated. In addition, the amino acid, ¥â-glucan, and polyphenol content were also measured. All species contained more than 20 mg% of polyphenol with the highest contents found in Pleurotus cornucopiae var. citrinopileatus (yellow pleurotus) (39.13¡¾0.82 mg%). The ¥â-glucan contents was also the highest in yellow Pleurotus (37.67¡¾0.22%) followed by Won-Hyeong1 (C, 28.75¡¾0.61%) and Jang-an PK (A, 27.95¡¾0.33%). The yellow Pleurotus exhibited the highest antioxidant activity as assessed by the DPPH scavenging rate with an IC50 value of 2.94¡¾0.44 mg/mL. Ethanol extracts from the yellow Pleurotus treated at 1% concentration showed cytotoxic activity up to 36.9% in the human embryonic kidney 293T cell lines. The yellow Pleurotus also showed the highest inhibitory effects on ACE activity (60.52¡¾0.2%). Finally, the yellow Pleurotus exhibited anti-diabetic and antiinflammatory properties as shown by inhibition of ¥á-amyloglucosidase activity (50.5¡¾0.8%) and nitric oxide production (68.4¡¾0.3%). Taken together, our data indicate the yellow pleurotus is a promising functional food ingredients.
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KEYWORD
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Pleurotus cornucopiae var. citrinopileatus, physiological activity, nutritional composition
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