CN107189451A - 一种大豆分离蛋白包装薄膜 - Google Patents

一种大豆分离蛋白包装薄膜 Download PDF

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CN107189451A
CN107189451A CN201710571158.8A CN201710571158A CN107189451A CN 107189451 A CN107189451 A CN 107189451A CN 201710571158 A CN201710571158 A CN 201710571158A CN 107189451 A CN107189451 A CN 107189451A
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soybean protein
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闫博
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    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
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    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
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    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
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Abstract

本发明涉及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45‑60份、玉米淀粉13‑20份、柿子粉8‑15份、纳米氧化锌4‑7份、茶多酚5‑9份、增强剂3‑7份、增塑剂5‑13份。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。

Description

一种大豆分离蛋白包装薄膜
技术领域
本发明属于薄膜材料技术领域，具体涉及一种大豆分离蛋白包装薄膜。
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，提供一种大豆分离蛋白包装薄膜。
为了实现本发明的目的，采用如下技术方案：
一种大豆分离蛋白包装薄膜，由以下重量份的原料组成：
优选地，增强剂为羧甲基纤维素钠或琼脂。
优选地，增塑剂为甘油、乙二醇、山梨醇或丙二醇中的一种。
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。
实施例1
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。
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75-80℃，糊化时间为15-20min，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20-30min，得B混合物；继续向B混合物中添加增强剂和增塑剂，搅拌10-15min，得C混合物；
(3)调节C混合物的pH为8-10，然后在50-70℃温度下恒温水浴加热15-25min，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50-65℃的条件下熟化干燥，然后在调温调湿箱中均湿回软12-18min，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℃。
以下实施例与实施例1的区别仅在于原料配比的不同。
实施例2
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60份、玉米淀粉20份、柿子粉15份、纳米氧化锌7份、茶多酚9份、增强剂7份、增塑剂13份；其中增强剂为羧甲基纤维素钠，增塑剂为乙二醇。
实施例3
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50份、玉米淀粉15份、柿子粉12份、纳米氧化锌5份、茶多酚7份、增强剂4份、增塑剂8份；其中增强剂为琼脂，增塑剂为丙二醇。
实施例4
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55份、玉米淀粉18份、柿子粉10份、纳米氧化锌6份、茶多酚6份、增强剂6份、增塑剂12份；其中增强剂为琼脂，增塑剂为山梨醇。
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 (3)

1.一种大豆分离蛋白包装薄膜，其特征在于，由以下重量份的原料组成：
2.根据权利要求1所述的大豆分离蛋白包装薄膜，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所述的大豆分离蛋白包装薄膜，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。
CN201710571158.8A 2017-07-13 2017-07-13 一种大豆分离蛋白包装薄膜 Withdrawn CN107189451A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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