CN112471248A - 一种生鲜果蔬的贮藏保鲜方法 - Google Patents
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Abstract
本发明公开了一种生鲜果蔬的贮藏保鲜方法，其特征是包括以下步骤：S1.将生鲜果蔬放入自发气调保湿包装袋中袋口扎紧，所述的自发气调保湿包装袋其气调膜材料由以下以重量计的组分构成：低密度聚乙烯10‑15份：聚乙二醇0.5‑2份：甘油2‑3份：碳酸钙0.05‑0.1份；将材料共混后在140‑160℃下经过挤压吹膜而成自发气调包装袋；S2.将装有生鲜果蔬的自发气调保湿包装袋在0℃‑8℃下贮藏。本发明的自发气调保湿包装袋包装能够产生低O2氧、高CO2、适应湿度的袋内环境，既有效抑制了包装袋内果蔬的呼吸强度、防止果蔬失水，也可以配合低温贮藏环境，进一步抑制果蔬呼吸，延长其贮藏保鲜期，其效果接近低温气调库的保鲜效果。
Description
技术领域
本发明涉及一种生鲜果蔬的贮藏保鲜方法。
背景技术
冷库低温保鲜是目前通用的生鲜果蔬贮藏保鲜技术。生鲜果蔬在低温条件下，能够降低呼吸、抑制致病菌滋生，有效延长保鲜期。但是，冷库低温条件下，生鲜果蔬易失水萎蔫，不利于保鲜。研究表明，低温气调库的保鲜效果要好于普通低温冷库，但是气调库的建设和运营成本太高，不适合在我国广大的农村地区推广应用。
发明内容
本发明所要解决的技术问题，就是提供一种生鲜果蔬的贮藏保鲜方法，采用低温结合自发气调、保湿包装贮藏保鲜生鲜果蔬，既克服了单纯冷库贮藏的不足，也具有气调库保鲜的效果，同时操作简便、成本低。
解决上述技术问题，本发明所采用的技术方案如下：
一种生鲜果蔬的贮藏保鲜方法，其特征是包括以下步骤：
S1.将生鲜果蔬放入自发气调保湿包装袋中袋口扎紧，所述的自发气调保湿包装袋其气调膜材料由以下以重量计的组份构成：
低密度聚乙烯(LDPE)10-15份：聚乙二醇(PEG)0.5-2份：甘油2-3份：碳酸钙0.05-0.1，将材料共混后在140-160℃下经过挤压吹膜而成自发气调包装袋；
S2.将装有生鲜果蔬的自发气调保湿包装袋在0℃-8℃下贮藏。
优选地，气调膜材料包括以下以重量计的组分：
低密度聚乙烯(LDPE)10份：聚乙二醇(PEG)1份：甘油2份：碳酸钙0.1份。
本发明的自发气调保湿包装袋由聚乙烯(PE)经过与聚乙二醇、甘油、碳酸钙共混后在140-160℃下经过挤压吹膜而成，具有良好的O2/CO2透过性能和透湿性能，能够产生低O2、高CO2、适应湿度的袋内环境。
有益效果：本发明的自发气调保湿包装袋包装能够产生低O2氧、高CO2、适应湿度的袋内环境，既有效抑制了包装袋内果蔬的呼吸强度、防止果蔬失水，也可以配合低温贮藏环境，进一步抑制果蔬呼吸，延长其贮藏保鲜期，其效果接近低温气调库的保鲜效果。
采用了本发明的自发气调保湿包装袋，并按照本发明的方法去进行果蔬保鲜，通过自发气调、保湿包装袋包装，能够产生低O2氧、高CO2、适应湿度的袋内环境，既有效抑制了包装袋内果蔬的呼吸强度、防止果蔬失水，也可以配合低温贮藏环境，进一步抑制果蔬呼吸，延长其贮藏保鲜期，其效果接近低温气调库的保鲜效果。
具体实施方式
下面结合具体实施例对本发明做进一步的详细说明。
本发明的生鲜果蔬的贮藏保鲜方法实施例一，包括以下步骤：
1)将5kg火龙果放入“长×宽＝50cm×30cm”的自发气调、保湿包装袋中，袋口扎紧；
所述的自发气调、保湿包装袋由聚乙烯(PE)经过修饰改进制作而成，其气调膜材料组成包括：10份：聚乙二醇(PEG)1份：甘油2份：碳酸钙0.05将材料混合在150℃下经过挤压吹膜而成自发气调包装袋；
2)将装有火龙果的自发气调、保湿包装袋，置于8℃下贮藏。
实施例二，步骤如下：
1)将3kg菜心放入“长×宽＝50cm×30cm”内袋中，袋口扎紧；所述的自发气调、保湿包装袋由聚乙烯(PE)经过修饰改进制作而成，其气调膜材料组成包括：15份：聚乙二醇(PEG)1份：甘油2份：碳酸钙0.1份将材料混合后制成气调膜后加工成自发气调包装袋。
2)将装有菜心的自发气调、保湿包装袋，置于4℃下贮藏。
实施例三，步骤如下：
1)将3kg菜心放入“长×宽＝50cm×30cm”内袋中，袋口扎紧；所述的自发气调、保湿包装袋由聚乙烯(PE)经过修饰改进制作而成，其气调膜材料组成包括：15份：聚乙二醇(PEG)1份：甘油2份：碳酸钙0.1将材料混合后制成气调膜后加工成自发气调包装袋。
2)将装有菜心的自发气调、保湿包装袋，置于2℃下贮藏。
上述各实施例在存储7-12天之后依然保持新鲜品质。
Claims (2)
1.一种生鲜果蔬的贮藏保鲜方法，其特征是包括以下步骤：
S1.将生鲜果蔬放入自发气调保湿包装袋中袋口扎紧，所述的自发气调保湿包装袋其气调膜材料由以下以重量计的组份构成：低密度聚乙烯10-15份：聚乙二醇0.5-2份：甘油2-3份：碳酸钙0.05-0.1；将材料共混后在140-160℃下经过挤压吹膜而成自发气调包装袋；
S2.将装有生鲜果蔬的自发气调保湿包装袋在0℃-8℃下贮藏。
2.根据权利要求1所述的生鲜果蔬的贮藏保鲜方法，其特征是：所述的气调膜材料由以下以重量计的组分构成：低密度聚乙烯10份：聚乙二醇1份：甘油2份：碳酸钙0.1份；所述的自发气调保湿包装袋在4℃下贮藏。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955606A (zh) * | 2010-10-11 | 2011-01-26 | 中华全国供销合作总社济南果品研究院 | 一种红富士苹果专用保鲜膜 |
| CN102174222A (zh) * | 2011-01-31 | 2011-09-07 | 开原市升达塑料彩印厂 | 一种可降解塑料薄膜及其生产方法 |
| CN109177408A (zh) * | 2018-08-09 | 2019-01-11 | 广东省农业科学院蚕业与农产品加工研究所 | 果蔬双层膜包装袋及果蔬保鲜方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955606A (zh) * | 2010-10-11 | 2011-01-26 | 中华全国供销合作总社济南果品研究院 | 一种红富士苹果专用保鲜膜 |
| CN102174222A (zh) * | 2011-01-31 | 2011-09-07 | 开原市升达塑料彩印厂 | 一种可降解塑料薄膜及其生产方法 |
| CN109177408A (zh) * | 2018-08-09 | 2019-01-11 | 广东省农业科学院蚕业与农产品加工研究所 | 果蔬双层膜包装袋及果蔬保鲜方法 |
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