Biodegradable films based on pure gelatin (GEL100), chitosan (CH100) and sodium caseinate (SCas100), and gelatin-chitosan (GEL50:CH50) and gelatin‑sodium caseinate (GEL50:SCas50) blends, without or with boldo-of-Chile leafs extract (BoC) were studied. The solubility in water (%) of all the pure films was analyzed. Moreover, the disintegration process was evaluated throughout the mass loss (%), structural (FTIR) changes and visual analyses of films up to 5 days of composting conditions. The Boltzmann function allowed obtaining the half-maximal disintegration time (t50) of all the films. Only Scas100 films exhibited complete solubility in water, compared to the other films (P < 0.05). At day 1, SCas100 + B film exhibited total mass loss, meanwhile for the other film samples this parameter varied between 47.9 ± 3.0% (CH100 + B) and 6.8 ± 1.3% (GEL100 + B) (P < 0.05). FTIR analysis showed some changes in the intensity of the typical bands of the pure or blended films. Photographs registered exhibited the complete disintegration of all films into 5 days. Finally, Boltzmann equation displayed that pure SCas100 film disintegrated in the shortest time (0.500 days), and GEL50:CH50 blended film in the longest time (1.766 days). In conclusion, the results of this work show an appropriate and complete disintegration of all studied films in composting conditions.

译文

基于纯明胶 (GEL100),壳聚糖 (CH100) 和酪蛋白酸钠 (SCas100) 以及明胶-壳聚糖 (GEL50:CH50) 和明胶-酪蛋白酸钠 (GEL50:SCas50) 共混物的可生物降解薄膜,不使用或不使用辣椒提取物 (BoC)。分析了所有纯膜在水中的溶解度 (%)。此外,在长达5天的堆肥条件下,对膜的质量损失 (%),结构 (FTIR) 变化和视觉分析过程进行了评估。玻尔兹曼函数允许获得所有薄膜的最大崩解时间 (t50)。与其它膜相比,只有Scas100膜在水中表现出完全的溶解性 (P <0.05)。在第1天,SCas100 + B膜表现出总质量损失,同时对于其他膜样品,该参数在47.9 ± 3.0% (CH100 + B) 和6.8 ± 1.3% (GEL100 + B) 之间变化 (P <0.05)。FTIR分析显示,纯膜或混合膜的典型带的强度发生了一些变化。登记的照片显示所有电影在5天内完全解体。最后,Boltzmann方程显示纯SCas100膜在最短时间 (0.500天) 内分解,GEL50:CH50混合膜在最长时间 (1.766天) 内分解。总之,这项工作的结果表明,在堆肥条件下,所有研究的薄膜都适当而完全地分解。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录