CN107189452A - 一种可食用大豆分离蛋白包装薄膜的制备方法 - Google Patents
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Abstract
本发明涉及一种可食用大豆分离蛋白包装薄膜的制备方法,包括:称取相应重量份的各原料,将大豆分离蛋白、玉米淀粉和柿子粉进行加热糊化得A混合物;向A混合物中添加纳米氧化锌和茶多酚,得B混合物;继续向B混合物中添加增强剂和增塑剂,得C混合物;调节C混合物的pH为9,然后在60℃温度下恒温水浴加热20min,冷却,超声去泡,得成膜液;将成膜液流延到有机玻璃基板上,熟化干燥,然后在调温调湿箱中均湿回软15min,揭膜,得到大豆分离蛋白薄膜。本发明的大豆蛋白包装薄膜不仅具有较好的强度,且具有抗菌和抗辐射的优点,安全无毒,易降解,减轻对环境造成的压力。
Description
技术领域
本发明属于薄膜材料技术领域,具体涉及一种可食用大豆分离蛋白包装薄膜的制备方法。
背景技术
塑料广泛应用于经济、生活的各个领域,如生活中的购物袋、垃圾袋、塑料杯、一次性餐盒,生产中的农膜等。然而由于塑料难以降解,是“白色污染”的来源,给自然环境造成了不可忽视的负面影响。随着污染的严重和环境保护意识的提高,作为替代品的生物降解塑料已经受到广泛的关注,成为解决塑料废弃物引起的环境污染问题的有效方法之一。
近年来,蛋白质膜由于其具有生物降解性、营养特性以及某些良好的性能,已渐渐成为国内外的研究热点之一。
大豆分离蛋白膜具有良好的阻气性及一定的阻湿性和机械强度。大豆分离蛋白膜作为一种新型无污染的环保型材料,具有可与被包装食品直接接触,无环境污染;具有优良的阻氧性能,提高食品质量等优点。但是单一组分的大豆分离蛋白膜,存在强度低、抗菌效果差等缺点,达不到理想的应用效果。
发明内容
本发明为了解决现有的大豆分离蛋白膜强度低、抗菌效果差的技术问题,提供一种可食用大豆分离蛋白包装薄膜的制备方法。
为了实现本发明的目的,采用如下技术方案:一种可食用大豆分离蛋白包装薄膜的制备方法,大豆分离蛋白包装薄膜由以下重量份的原料组成:
制备方法具体包括以下步骤:
(1)分别称取相应重量份的各原料,然后将大豆分离蛋白、玉米淀粉和柿子粉进行加热糊化,加热温度为77℃,糊化时间为18min,得A混合物;
(2)向步骤(1)的A混合物中添加纳米氧化锌和茶多酚,磁力搅拌25min,得B混合物;继续向B混合物中添加增强剂和增塑剂,搅拌13min,得C混合物;
(3)调节C混合物的pH为9,然后在60℃温度下恒温水浴加热20min,冷却,超声去泡,得成膜液;
(4)将成膜液流延到有机玻璃基板上,熟化干燥,然后在调温调湿箱中均湿回软15min,揭膜,得到大豆分离蛋白薄膜。
优化的,增强剂为羧甲基纤维素钠或琼脂。
优化的,增塑剂为甘油、乙二醇、山梨醇或丙二醇中的一种。
优化的,熟化干燥的温度为60℃。
优化的,调温调湿箱的工作条件为:相对湿度为87%,温度为30℃。
本发明的有益效果:
本发明以完全可生物降解的大豆蛋白为主要原料,并配伍以玉米淀粉和柿子粉,提高了大豆分离蛋白膜的机械强度;添加物中的纳米氧化锌能够对紫外光起到屏蔽作用,添加的茶多酚具有抗菌和抗辐射作用。本发明的大豆蛋白包装薄膜不仅具有较好的强度,且具有抗菌和抗辐射的优点,安全无毒,易降解,减轻对环境造成的压力。
具体实施方式
下面对本发明的实施例作详细说明,本实施例在以本发明技术方案为前提下进行实施,给出了详细的实施方式和具体的操作过程,但本发明的保护范围不限于下述的实施例。
一种大豆分离蛋白包装薄膜,由以下重量份的原料组成:大豆分离蛋白粉45份、玉米淀粉13份、柿子粉8份、纳米氧化锌4份、茶多酚5份、增强剂3份、增塑剂5份;其中增强剂为羧甲基纤维素钠,增塑剂为甘油。
可食用大豆分离蛋白包装薄膜的制备方法,具体包括以下步骤:
(1)分别称取相应重量份的各原料,然后将大豆分离蛋白、玉米淀粉和柿子粉进行加热糊化,加热温度为77℃,糊化时间为18min,得A混合物;
(2)向步骤(1)的A混合物中添加纳米氧化锌和茶多酚,磁力搅拌25min,得B混合物;继续向B混合物中添加增强剂和增塑剂,搅拌13min,得C混合物;
(3)调节C混合物的pH为9,然后在60℃温度下恒温水浴加热20min,冷却,超声去泡,得成膜液;
(4)将成膜液流延到有机玻璃基板上,在60℃的条件下熟化干燥,然后在调温调湿箱中均湿回软15min,揭膜,得到大豆分离蛋白薄膜,其中调温调湿箱的工作条件为:相对湿度为87%,温度为30℃。
优化的,增强剂为羧甲基纤维素钠或琼脂。
优化的,增塑剂为甘油、乙二醇、山梨醇或丙二醇中的一种。
优化的,熟化干燥的温度为60℃。
优化的,调温调湿箱的工作条件为:相对湿度为87%,温度为30℃。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
Claims (5)
1.一种可食用大豆分离蛋白包装薄膜的制备方法,其特征在于,大豆分离蛋白包装薄膜由以下重量份的原料组成:
制备方法具体包括以下步骤:
(1)分别称取相应重量份的各原料,然后将大豆分离蛋白、玉米淀粉和柿子粉进行加热糊化,加热温度为77℃,糊化时间为18min,得A混合物;
(2)向步骤(1)的A混合物中添加纳米氧化锌和茶多酚,磁力搅拌25min,得B混合物;继续向B混合物中添加增强剂和增塑剂,搅拌13min,得C混合物;
(3)调节C混合物的pH为9,然后在60℃温度下恒温水浴加热20min,冷却,超声去泡,得成膜液;
(4)将成膜液流延到有机玻璃基板上,熟化干燥,然后在调温调湿箱中均湿回软15min,揭膜,得到大豆分离蛋白薄膜。
2.根据权利要求1所述的可食用大豆分离蛋白包装薄膜的制备方法,其特征在于,增强剂为羧甲基纤维素钠或琼脂。
3.根据权利要求1所述的可食用大豆分离蛋白包装薄膜的制备方法,其特征在于,增塑剂为甘油、乙二醇、山梨醇或丙二醇中的一种。
4.根据权利要求1所述的可食用大豆分离蛋白包装薄膜的制备方法,其特征在于,熟化干燥的温度为60℃。
5.根据权利要求1所述的可食用大豆分离蛋白包装薄膜的制备方法,其特征在于,调温调湿箱的工作条件为:相对湿度为87%,温度为30℃。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108342095A (zh) * | 2018-03-15 | 2018-07-31 | 四川农业大学 | 一种基于柠檬皮的可食性包装膜及其制备方法和应用 |
CN108912701A (zh) * | 2018-08-20 | 2018-11-30 | 桐城市亿伟塑胶有限公司 | 一种环保大豆蛋白基塑料包装薄膜 |
CN109181017A (zh) * | 2018-10-18 | 2019-01-11 | 江西师范大学 | 一种鱼明胶抗菌膜的制备方法 |
CN113637237A (zh) * | 2021-09-13 | 2021-11-12 | 桂林理工大学 | 一种具有优异阻隔性能的热塑性淀粉基纳米复合材料及其制备方法 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108342095A (zh) * | 2018-03-15 | 2018-07-31 | 四川农业大学 | 一种基于柠檬皮的可食性包装膜及其制备方法和应用 |
CN108342095B (zh) * | 2018-03-15 | 2021-01-26 | 四川农业大学 | 一种基于柠檬皮的可食性包装膜及其制备方法和应用 |
CN108912701A (zh) * | 2018-08-20 | 2018-11-30 | 桐城市亿伟塑胶有限公司 | 一种环保大豆蛋白基塑料包装薄膜 |
CN109181017A (zh) * | 2018-10-18 | 2019-01-11 | 江西师范大学 | 一种鱼明胶抗菌膜的制备方法 |
CN109181017B (zh) * | 2018-10-18 | 2021-03-16 | 江西师范大学 | 一种鱼明胶抗菌膜的制备方法 |
CN113637237A (zh) * | 2021-09-13 | 2021-11-12 | 桂林理工大学 | 一种具有优异阻隔性能的热塑性淀粉基纳米复合材料及其制备方法 |
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