CN107739446A - 一种果胶/PVA‑SbQ复合膜在香精负载中的应用 - Google Patents

一种果胶/PVA‑SbQ复合膜在香精负载中的应用 Download PDF

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CN107739446A
CN107739446A CN201710962523.8A CN201710962523A CN107739446A CN 107739446 A CN107739446 A CN 107739446A CN 201710962523 A CN201710962523 A CN 201710962523A CN 107739446 A CN107739446 A CN 107739446A
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sbq
pva
pectin
essence
composite membranes
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CN107739446B (zh
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张翠
曲春波
李博
梅俊
张金玲
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Shanghai City Construction Career Academy
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

本发明公开了一种果胶/PVA‑SbQ复合膜以及该复合膜在香精负载中的应用，复合膜结构中的SbQ基团能够在紫外光诱导下，发生二聚交联反应，从而能够将香精包裹在内部，达到缓释的效果。

Description

一种果胶/PVA-SbQ复合膜在香精负载中的应用
技术领域
本发明属于天然高分子膜材料与感光技术领域，具体涉及一种果胶/PVA-SbQ复合膜在香精负载中的应用方法。
背景技术
香精香料在食品、化妆品、家居用品中有着广泛应用，如食用香料、固体清香剂等。香精的挥发性较强，留存时间短，因此近年来许多科学家采用高分子载体来负载香精，并控制其释放过程，这样的高分子载体也较为广泛，如纳米胶体粒子、微胶囊等。高分子膜也是一种高分子载体，果胶多糖是一种高分子材料，其存在于柚子皮中，来源广泛，成本低廉，且具有优异的成膜性和生物相容性。
光敏聚合物是一类特殊的刺激-响应型“智能”聚合物，其结构中的光敏感基元能够对外界光刺激(如紫外、近红外等)做出快速响应，并发生相应的物理、化学性质的变化。光刺激作为一种特殊的调控手段，其优越性主要表现在可以通过对照射频率、位置、强度及时间长短进行选择，“定时、定点、定速”地实现“智能”调控。PVA-SbQ作为一种光敏高分子，其已实现了广泛应用，如纳米纤维、生物传感、药物负载等。
果胶分子和PVA-SbQ链结构中都存在大量羟基，两种物质能够存在一定氢键缔合作用，因而两种大分子能够形成一定网络结构。试想，如果选择这两种物质作为成膜基质，将香精包裹负载在膜结构中，SbQ基团能够在紫外光诱导下发生交联反应，从而使膜内部网络结构变得更加密实，能够在一定程度上实现对香精化合物的固定或控制，这样香精的释放会变得缓慢。
发明内容
本专利发明了一种果胶/PVA-SbQ复合膜在香精负载中的应用，其特征在于包括如下步骤：
(1)配制2份质量分数均为4％的果胶水溶液各100ml，以及分别配制质量分数为2％和4％的PVA-SbQ水溶液100ml；
(2)将步骤(1)配制的果胶水溶液分别和步骤(1)中的两种PVA-SbQ水溶液等体积混合，分别制得果胶和PVA-SbQ质量比例为2∶1和1∶1的成膜液各200ml；
(3)将1g香精溶于无水乙醇20ml，在搅拌下逐滴加入步骤(2)中的成膜液200ml中，然后先进行紫外曝光，再缓慢置入玻璃板上流平，放入40℃的烘箱内成膜，24h后取出揭膜，即得到负载香精的果胶/PVA-SbQ复合膜。
步骤(3)中紫外曝光时间为1-20min，优选15-20min。
本发明的有益效果：(1)本发明制备了果胶/PVA-SbQ复合膜，利用果胶多糖和PVA-SbQ上大量羟基之间的氢键作用，形成相容的复合体系。将香精化合物负载在于复合膜中，通过紫外光诱导控制体系交联，实现对香精的固定以及缓释。(2)采用生物相容性较好的多糖和PVA-SbQ材料作为载体，且利用光能，低碳环保，得到的负载香精的膜材料有望作为清香膜贴等家居产品使用。
附图说明
图1负载香精的果胶/PVA-SbQ复合膜在未曝光交联和曝光交联下的香精释放率
具体实施方式
以下利用实施例进一步详细说明本发明，但不能认为是限定发明的范围。
实施例1
(1)配制质量分数为4％的果胶水溶液100ml，以及配制质量分数为2％的PVA-SbQ水溶液100ml；
(2)将步骤(1)配制的果胶水溶液和步骤(1)中的PVA-SbQ水溶液等体积混合，制得果胶和PVA-SbQ质量比例为2∶1的成膜液200ml；
(3)将1g香精溶于无水乙醇20ml，在搅拌下逐滴加入步骤(2)中的成膜液200ml中，然后先进行紫外曝光15min，再缓慢置入玻璃板上流平，放入40℃的烘箱内成膜，24h后取出揭膜，即得到负载香精的果胶/PVA-SbQ复合膜。
实施例2
(1)配制质量分数为4％的果胶水溶液100ml，以及配制质量分数为4％的PVA-SbQ水溶液100ml；
(2)将步骤(1)配制的果胶水溶液和步骤(1)中的PVA-SbQ水溶液等体积混合，制得果胶和PVA-SbQ质量比例为1∶1的成膜液200ml；
(3)将1g香精溶于无水乙醇20ml，在搅拌下逐滴加入步骤(2)中的成膜液200ml中，然后先进行紫外曝光15min，再缓慢置入玻璃板上流平，放入40℃的烘箱内成膜，24h后取出揭膜，即得到负载香精的果胶/PVA-SbQ复合膜。
比较例1
与实施例1相比，将“进行紫外曝光15min”替换为“不进行紫外曝光”，其它制备过程与实施例1完全相同。
对实施例1和比较例1的香精释放进行考察，将干膜浸在缓冲液中，用紫外光谱追踪不同时间缓冲液的吸光度变化，如图1所示。结果显示，曝光后的膜的香精释放率比未曝光的膜要低，因而曝光交联可实现香精的缓释。

Claims (2)

1.一种果胶/PVA-SbQ复合膜在香精负载中的应用，其特征在于包括如下步骤：
(1)配制2份质量分数均为4％的果胶水溶液各100ml，以及分别配制质量分数为2％和4％的PVA-SbQ水溶液100ml；
(2)将步骤(1)配制的果胶水溶液分别和步骤(1)中的两种PVA-SbQ水溶液等体积混合，分别制得果胶和PVA-SbQ质量比例为2∶1和1∶1的成膜液各200ml；
(3)将1g香精溶于无水乙醇20ml，在搅拌下逐滴加入步骤(2)中的成膜液200ml中，然后先进行紫外曝光，再缓慢置入玻璃板上流平，放入40℃的烘箱内成膜，24h后取出揭膜，即得到负载香精的果胶/PVA-SbQ复合膜。
2.根据权利要求1所述的果胶/PVA-SbQ复合膜在香精负载中的应用，其特征在于：步骤(3)中紫外曝光时间为1-20min，优选15-20min。
CN201710962523.8A 2017-09-28 2017-09-28 一种果胶/PVA-SbQ复合膜在香精负载中的应用 Expired - Fee Related CN107739446B (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102977526A (zh) * 2012-12-17 2013-03-20 青岛中科润美润滑材料技术有限公司 Pva/壳聚糖/果胶共混膜
CN103146004A (zh) * 2013-02-27 2013-06-12 江阴摩尔化工新材料有限公司 一种光交联提高大豆蛋白膜耐水性的方法
US20130167859A1 (en) * 2011-12-30 2013-07-04 L'oreal S.A. Methods for making up a keratinous substrate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130167859A1 (en) * 2011-12-30 2013-07-04 L'oreal S.A. Methods for making up a keratinous substrate
CN102977526A (zh) * 2012-12-17 2013-03-20 青岛中科润美润滑材料技术有限公司 Pva/壳聚糖/果胶共混膜
CN103146004A (zh) * 2013-02-27 2013-06-12 江阴摩尔化工新材料有限公司 一种光交联提高大豆蛋白膜耐水性的方法

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