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首页> 外文期刊>Coatings >Investigating the Nano-Films Effect on Physical, Mechanical Properties, Chemical Changes, and Microbial Load Contamination of White Button Mushrooms during Storage
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Investigating the Nano-Films Effect on Physical, Mechanical Properties, Chemical Changes, and Microbial Load Contamination of White Button Mushrooms during Storage

机译：在储存期间研究纳米膜对物理，机械性能，化学变化和白色按钮蘑菇的微生物载荷污染的影响

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摘要

Nutrient-rich edible white button mushrooms were coated with Chitosan (1%), Chitosan/nano-silica, and Chitosan/nano-titanium and then stored at 4 °C toinvestigate the physical, mechanical properties, chemical changes, and microbial load contamination at an interval of 3 days up to a 12 day storage period. It was noticed that Chitosan/nano-titanium and Chitosan/nano-silica preserved the weight loss percentages as 11.80% and 12.69%, respectively. Treatment with Chitosan/nano-silica coating was found to havepositive impacts on the overall color parameters. Both of the nano-coating films enhanced headspace gas compositions and firmness. Chitosan/nano-silica samples recorded the least electrolyte leakage value (24.44%), as low oxygen gas concentration can reduce the respiration rate, weight loss, and cap opening. Chitosan/nano-titanium treatment showed the lowest cap opening value (19.58%), PPO activity (16.98 mg?1 protein), and microbial load contamination (6.12 log CFU/g) at the end of the whole storage period, suggesting that nano-films are a promising preservation method forprolonging the white button mushroom’s shelf-life.
机译：营养丰富的可食用白色按钮蘑菇涂有壳聚糖（1％），壳聚糖/纳米二氧化硅和壳聚糖/纳米钛，然后在4℃下储存，以投入物理，机械性能，化学变化和微生物载荷污染间隔3天，最高可达12天的储存期。注意到壳聚糖/纳米钛和壳聚糖/纳米二氧化硅分别保留了重量损失百分比，分别为11.80％和12.69％。发现用壳聚糖/纳米二氧化硅涂层处理对整体颜色参数的影响。纳米涂膜两者都增强了顶空气体组成和坚固性。壳聚糖/纳米二氧化硅样品记录了最低电解质泄漏值（24.44％），因为低氧气浓度可以降低呼吸速率，减肥和帽开口。壳聚糖/纳米钛治疗显示最低的帽开口值（19.58％），PPO活性（16.98mg？1蛋白），以及整个储存期结束时的微生物载荷污染（6.12 log cfu / g），表明纳米-Films是一个有前途的保存方法，用于振作突然蘑菇的保质期。

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