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Cellulose and Pectic Polysaccharides

Cellulose and Pectic Polysaccharides

Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...

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Updated: Jun 14, 2025

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends

Published on: January 17, 2017

用于面包包装的活性/碳素甲基纤维素复合薄膜

Lavinia Doveri¹, Yuri Antonio Diaz Fernandez¹, Giacomo Dacarro¹

¹Department of Chemistry, University of Pavia, Via Taramelli 12, I-27100 Pavia, Italy.

Molecules (Basel, Switzerland)

|June 13, 2025

概括

这项研究开发了一种用于面包包装的天然活性膜,在没有纳米颗粒的情况下延长了保质期. 该膜有效抑制菌生长,符合与食品接触材料的监管标准.

关键词:

活体包装是一种活跃的包装.碳甲基纤维素的碳甲基纤维素.乳清素 (pectin) 是一种乳清素.银,银,银,银,银,银,银,银,银,银,银,银,银,银,银,银塞奥利特人是什么意思

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Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation

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Last Updated: Jun 14, 2025

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends

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Published on: January 17, 2017

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Published on: February 26, 2021

Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation

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Published on: June 17, 2014

科学领域:

食品科学与技术食品科学与技术
材料科学材料科学材料科学
聚合物科学聚合物科学

背景情况:

越来越多的消费者对天然,清洁标签食品包装的需求.
在食品接触材料中对纳米粒子的监管限制 (EFSA,FDA).
需要有效的面包保存方法,而不仅仅是直接添加防腐剂.

研究的目的:

使用可再生资源创建面包包装的活性复合膜.
通过防止菌生长,提高面包的保质期.
开发一种无纳米粒子的活性包装解决方案.

主要方法:

作为薄膜基质,使用了pectin (PEC) 和carboxymethylcellulose (CMC).
纳入的油酸 (OA) 作为塑化剂和 propionate (CaP) 作为交叉连接剂/防腐剂.
添加了带有银离子载荷的化物微粒 (AgZ) 来增强抗活性.

主要成果:

活性膜表现出了对O2和CO2的优良屏障特性.
通过OA塑化剂提高了水蒸气的透度.
低释放的Ag+和CaP,低于监管限制.
异常的抗菌活性对黑色菌和虫菌物种,达到>99.95%的减少.

结论:

开发的活性膜为延长面包保质期提供了安全有效的解决方案.
薄膜的特性使其适合用于涂覆纸张等天然包装材料.
这一创新符合消费者对天然和清洁标签产品的偏好.