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Cellulose and Pectic Polysaccharides01:15

Cellulose and Pectic Polysaccharides

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 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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Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder
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Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

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素纤维素纳米纤维复合材料:生物降解材料用于改造大气的包装.

Nosa B Idahagbon1, Robert J Nicholas1, Alexander Wei1

  • 1Purdue University, Department of Chemistry, 560 Oval Drive, West Lafayette, IN 47907.

Food hydrocolloids
|December 25, 2024
PubMed
概括

配有酸的pectin-cellulose纳米纤维复合材料显示出对可持续食品包装的承诺. 这种生物降解材料可以改善湿度控制和保存水果,为传统包装提供了可行的替代品.

科学领域:

  • 材料科学 材料科学 材料科学
  • 食品科学 食品科学 食品科学
  • 生物技术是生物技术.

背景情况:

  • 和纤维素纳米纤维 (CNF) 是生物可再生材料,有可能用于食品包装.
  • 改性大气包装 (MAP) 对于延长易腐食品的保质期至关重要.
  • 开发可持续和功能性的包装材料是一个持续的挑战.

研究的目的:

  • 调查素-CNF复合材料作为可持续的MAP材料的潜力.
  • 评估酸盐 (NaB) 对复合物的性能和性能的影响.
  • 评估开发的包装材料的机械性能和生物降解性.

主要方法:

  • 准备和鉴定了pectin-CNF复合物的特征.
  • 加入酸 (NaB) 来增强抗氧化能力.
  • 用冷藏的草和切片的果在3周内测试了包装性能.
  • 评估了机械性能 (抗拉强度,性) 和生物降解性.

主要成果:

  • 在冷藏条件下,pectin-CNF-NaB复合物表现出改善的湿度调节 (50%的变化较少).
  • 观察到草的保存效果提高,切片果的氧化棕色变化减少.
  • 这些薄膜在80%的RH下表现出极好的机械强度 (150MPa的抗拉强度,8.5MJ/m2的性).
关键词:
抗氧化剂是一种抗氧化剂.可生物降解,可生物降解.纤维素纳米纤维的纳米纤维.湿度调节 湿度调节 湿度调节机械性能 机械性能 机械性能乳清素 (pectin) 是一种可怕的物质.可持续性 可持续性 可持续性

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  • 在土壤中的广泛分解证实了pectin-CNF膜的生物降解性.

    • 结论:

    • pectin-CNF-NaB复合材料为MAP提供了一个可持续和可生物降解的解决方案.
    • 增强的抗氧化能力和湿度调节有助于改善食品的保存.
    • 强大的机械性能支持这些复合材料在功能性包装中的实际应用.