Chemical composition,antioxidant and anti-inflammatory properties for ethanolic extracts from Pleurotus eryngii fruiting bodies harvested at different time |
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| Authors: | Jau-Tien Lin Cheng-Wei Liu Yi-Chen Chen Chao-Chin Hu Lao-Dar Juang Ching-Chang Shiesh Deng-Jye Yang |
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| Affiliation: | 1. Department of Applied Chemistry, Chung Shan Medical University, 110, Section 1, Jianguo N. Road, Taichung 402, Taiwan;2. Department of Post-Modern Agriculture, Ming Dao University, 369, Wen-Hua Road, Changhua 523, Taiwan;3. Department of Biotechnology, Ming Dao University, 369, Wen-Hua Road, Changhua 523, Taiwan;4. Department of Animal Science and Technology, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan;5. Agriculture and Food Agency, Council of Agriculture, Executive Yuan, 8, Kuang Hwa Road, Nanto 540, Taiwan;6. Department of Horticulture, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan;g School of Health Diet and Industry Management, Chung Shan Medical University and Department of Nutrition, Chung Shan Medical University Hospital, 110, Section 1, Jianguo North Road, Taichung 402, Taiwan |
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| Abstract: | Pleurotus eryngii, a popular edible mushroom in Taiwan, is usually cultivated using sawdust medium packing bags through several procedures including culture medium confection, bagging and sterilization, spawn inoculation, fostering mycelia, full growth of mycelia, and inducing fruiting body formation. In this study, P. eryngii commercial products harvested at the 10th, 12th and 15th days after inducing the fruiting body formation were extracted with ethanol, individually. Through determination of chemical composition, antioxidant and anti-inflammatory properties of these extracts, the optimal harvest time of P. eryngii fruiting bodies with higher functional attributes was revealed. The earlier harvested sample extracts had higher effects for scavenging 2,2-diphenyl-1-picrylhydrazyl radicals, reducing power, chelating power, and β-carotene bleaching inhibition, as well as down-regulating lipopolysaccharide-stimulated nitric oxide, prostaglandin E2, inducible nitric oxide synthase, and cyclooxygenase-2 expression in RAW264.7 macrophages. These functional responses were closely related to levels of phytochemical components including phenolic acids, flavonoids, tocopherols and carotenoids. |
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| Keywords: | Antioxidant Anti-inflammatory effect Chemical composition Pleurotus eryngii Harvest time |
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