Effects of ultrasound and high pressure argon on physico-chemical properties of white mushrooms (Agaricus bisporus) during postharvest storage |
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| Affiliation: | 1. Engineering Research Center of Biopolymer Functional Materials of Yunnan, Yunnan University of Nationalities, Kunming 650500, Yunnan, China;2. Institute of Chemical Engineering, Kunming University of Science and Technology, Kunming 650550, Yunnan, China;3. College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, Guangdong, China;1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China;2. College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210046, PR China;3. Department of Dairy and Food Science and Technology, Egerton University, Nakuru, Kenya;1. Department of Food Science and Technology, Tarbiat Modares University, P.O. Box 14115-336, Tehran, Iran;2. Department of Food Science and Technology, Shiraz University, Shiraz, Iran |
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| Abstract: | Effects of high pressure argon (H), ultrasound (U) and their combination treatments (UH) on physico-chemical characteristics of white mushrooms were studied during 9 d of postharvest storage at 4 °C. H treated samples exhibited the smallest weight loss and respiration rate compared to all other samples. Mass losses after 9 d of storage were 3.01%, 5.09%, 5.39% and 9.59% for H, UH, U and untreated mushrooms, respectively. Furthermore, U treated samples showed lower polyphenol oxidase activity (PPO, E.C. 1.14.18.1) during storage while UH treated samples showed a slight increase in antioxidant capacity during storage and also experienced reduced mass loss and respiration rate. In addition, treated samples were effective in retaining mushrooms colour changes compared to control. Physico-chemical properties of differently treated mushrooms (UH, H and U) stored at 4 °C were significantly different (p < 0.05) from control. |
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| Keywords: | High pressure argon Ultrasound NMR White mushroom Shelf life Storage |
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