魏华,许文才,李东立.可释放SO2复合膜对葡萄保鲜性能的影响[J].包装工程,2017,38(9):36-40.
WEI Hua,XU Wen-cai,LI Dong-li.Effect of Composite Film Releasing SO2 on the Preservation Performance of Grapes[J].Packaging Engineering,2017,38(9):36-40. |
| 可释放SO2复合膜对葡萄保鲜性能的影响 |
| Effect of Composite Film Releasing SO2 on the Preservation Performance of Grapes |
| 投稿时间：2017-01-24 修订日期：2017-05-10 |
| DOI： |
| 中文关键词: 复合膜 SO2 葡萄 保鲜期 质量损失率 |
| 英文关键词: composite film SO2 grapes freshness mass loss rate |
| 基金项目:东莞职业技术学院省示范校重点专业及专业群2016 年度院级质量工程项目（JGZD201625） |
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| 中文摘要: |
| 目的 延长葡萄的保鲜期。方法 制备一种具有3 层结构的可释放SO2 复合膜，将复合膜热封成包装袋，对保鲜包装袋释放二氧化硫的情况进行分析。以裸放葡萄为对照组，研究保鲜包装袋在23 ℃下对葡萄的保鲜效果。分析葡萄在贮藏期间的质量损失率、落粒率、好果率、可溶性固形物含量及硬度的变化，并观察葡萄的外观。结果 保鲜包装袋可持续释放30 mg/L 的SO2 30 d 以上。常温保存17 d 后，裸放组的葡萄已经失去了食用价值，好果率为0%，而保鲜袋中葡萄质量损失率为1.46%、落粒率为5.1%、好果率为60%左右。结论 可释放SO2 复合膜缓慢释放的SO2 可持续达到抑菌保鲜、有效延长葡萄货架期的效果。 |
| 英文摘要: |
| The work aims to prolong the freshness of grapes. The composite film with releasable SO2 in three layers was prepared. The composite film was hot sealed as packaging bag. The fresh-keeping packaging bag that released sulfur dioxide was analyzed. The fresh-keeping effect of fresh-keeping packaging bag on the grapes was studied at 23 ℃ by using the naked grapes as control group. Changes in the rates of mass loss, shattering and intact fruit, soluble solid content and hardness of grapes during storage were analyzed, and the appearances of grapes were observed. The fresh-keeping packaging bags could sustainably release 30 mg/L of SO2 for over 30 days. After 17 days' preservation at normal temperature, the naked grapes had lost their edible value and the intact fruit rate was 0%. And for the grapes in fresh-keeping packaging bags, the weight loss rate was 1.46%, shattering rate was 5.1% and intact fruit rate was approximately 60%. The SO2 slowly released by the composite film with releasable SO2 can be sustainably antibacterial and effectively prolong the shelf life of grapes. |
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