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相关概念视频

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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Cell Adhesion in Plants01:14

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Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
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Fruit Development, Structure, and Function01:58

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Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
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相关实验视频

Updated: Jan 9, 2026

Staining the Cytoplasmic Ca2+ with Fluo-4/AM in Apple Pulp
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果品种特有的丁特性会影响果泥的功能.

Dazhi Liu1,2, Jinfeng Bi1, Xuan Liu1,3

  • 1Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China.

Food chemistry: X
|December 4, 2025
PubMed
概括

果果的结构显著影响了纯粹的质地和质学. 了解点素的理解

关键词:
果种植的种植方式果清纯是一种果清纯.素的结构 素的结构

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科学领域:

  • 食品科学 食品科学 食品科学
  • 植物生物化学 植物生物化学
  • 材料科学 是一种材料科学.

背景情况:

  • 果泥质量受到各种因素的影响,包括质的结构特征.
  • 复杂的多糖化合物 - - pectins在决定水果制品的质地和质性质方面发挥着至关重要的作用.

研究的目的:

  • 为了研究点氨酸的结构特征和果泥质量参数之间的关系.
  • 了解点的组成和结构如何影响纯粹的粘度,颗粒大小和学行为.

主要方法:

  • 从不溶于酒精的固体 (AIS) 提取和分成可溶于水的固体 (WSS) 和可溶于化剂的固体 (ChSS).
  • 对pectin糖成分和甲基化 (DM) 程度的分析.
  • 酶指纹测定以确定甲基分布和主要成分分析 (PCA) 以将pectin结构与粉末属性相关联.

主要成果:

  • 在不同果品种中观察到甲基化 (DM) 的点丁度的显著变化.
  • 粉碎片显示出明显的低或高甲基化配置文件.
  • 经过PCA检测,发现了pectin结构 (糖分组成,甲基分布) 和puree特性 (颗粒大小,风质) 之间的强烈相关性.

结论:

  • 质的结构特征,特别是甲基的分布和糖的组成,显著影响果泥质地和质行为.
  • 丁的特性是果产品质量的关键决定因素.
  • 这项研究为优化食品设计提供了见解,通过利用植物多糖的多样性来优化食品设计.