Development of Active Packaging to Extend the Shelf Life of <i>Agaricus bisporus</i> by Using Plasma Technology

• Main Authors: Chao-Kai Chang, Kuan-Chen Cheng, Chih-Yao Hou, Yi-Shan Wu, Chang-Wei Hsieh
• Format: Article
• Language: English
• Published: MDPI AG 2021-06-01
• Series: Polymers
• Subjects: plasma modification; preservation; carboxymethyl cellulose; collagen; <i>Agaricus bisporus</i>
• Online Access: https://www.mdpi.com/2073-4360/13/13/2120

In this study, a preservation package that can extend the shelf life of <i>Agaricus bisporus</i> was developed using plasma modification combined with low-density polyethylene (LDPE), collagen (COL), and carboxymethyl cellulose (CMC). Out results showed that the selectivity of LDPE to gas can be controlled by plasma modification combined with coating of different concentrations of CMC and COL. Packaging test results applied to <i>A. bisporus</i> showed that 3% and 5% of CMC and COL did not significantly inhibit polyphenol oxidase and β-1,3-glucanase, indicating no significant effect on structural integrity and oxidative browning. The use of 0.5% and 1.0% CMC and COL can effectively inhibit the polyphenol oxidase and β-1,3-glucanase activity of <i>A. bisporus</i>, leading to improved effects in browning inhibition and structural integrity maintenance. P-1.0COL can effectively maintain gas composition in the package (carbon dioxide: 10–15% and oxygen: 8–15%) and catalase activity during storage, thereby reducing the oxidative damage caused by respiration of <i>A. bisporus.</i> The current study confirmed that the use of plasma modification technology combined with 1.0% COL can be used in preservation packaging by regulating the respiration of <i>A. bisporus</i>, thus extending its shelf life from 7 to 21 days.