Physical properties of a barley protein/nano‐clay composite film containing grapefruit seed extract and antimicrobial benefits for packaging of Agaricus bisporus |
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Authors: | Yoon‐Ji Shin Hye‐Yeon Song Wan‐Shin Jo Mi‐Ja Lee Kyung Bin Song |
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Affiliation: | 1. Department of Food Science & Technology, Chungnam National University, , Daejeon, 305‐764 Korea;2. Winter Cereal and Forage Crop Research Division, National Institute of Crop Science, , Iksan, 570‐080 Korea |
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Abstract: | Barley protein (BP) was extracted from barley flour, and a BP film was prepared. To improve the physical properties of the BP film, nano‐clay was incorporated. Among the films prepared, the composite film containing 4% BP/1% Cloisite Na+ had the best physical property. The composite film containing grapefruit seed extract (GSE) was prepared and used as a packaging film for the button mushroom. Packing of the mushroom with this film inhibited microbial growth during storage. After 7 days of storage, packaging of mushrooms with the film containing 0.7% GSE reduced the populations of total aerobic bacteria and yeast and moulds by 0.95 and 0.58 log CFU/g, respectively, compared with the control. These results suggest that the BP/Cloisite Na+ film containing GSE can be used as an environment‐friendly packaging for maintaining mushroom quality during storage. |
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Keywords: |
Agaricus bisporus
barley protein grapefruit seed extract nano‐clay |
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