Effect of alginate coating on physicochemical and sensory qualities of button mushrooms (Agaricus bisporus) under a high oxygen modified atmosphere |
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| Institution: | 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. Laboratorio de Tecnología Química (FaCENA - IQUIBA – CONICET), Universidad Nacional del Nordeste, Av. Libertad 5400, Corrientes, Argentina;2. Department of Food Technology, University of Lleida – Agrotecnio Center, Av. Alcalde Rovira Roure 191, 25198, Lleida, Spain;1. Department of Horticultural Science, Tabriz Branch, Islamic Azad University, Tabriz, Iran;2. Young Researchers and Elite Club, Ahar Branch, Islamic Azad University, Ahar, Iran;1. Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China;2. Obesita & Algaegen LLC, College Station, TX, 77845, United States;3. School of Agriculture and Food Engineering, Shandong University of Technology, Zibo 255049, Shandong, PR China;4. School of Agricultural Economics and Rural Development, Renmin University of China, Beijing 100872, PR China |
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| Abstract: | Button mushrooms (Agaricus bisporus) were dipped for 2 min in different concentrations (1%, 2% and 3%) of alginate, then placed in jars and ventilated continuously with 100% O2 for up to 16 d at 4 °C. Mushroom respiration rate, weight loss, texture, color, percent open caps, chemical properties and activities of polyphenol oxidase (PPO), and peroxidase (POD) were measured. The results indicate that treatment with alginate coating (2%) + 100% O2 maintained a high level of firmness, and delayed browning and cap opening. In addition, alginate coating (2%) + 100% O2 also delayed changes in the soluble solids concentration, total sugars and ascorbic acid, and inhibited the activity of PPO and POD throughout storage. Our study suggests that the use of alginate coating under a high oxygen modified atmosphere has the potential to maintain button mushroom quality and extend its postharvest life to 16 d. |
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