概括
低剂量胺溶液的玛辐射形成了热可逆的凝. 最佳条件,包括pH值和缺氧,最大限度地提高了潜在应用的凝强度.
科学领域:
- 食品科学和材料科学 食品科学和材料科学
- 辐射化学 辐射化学
背景情况:
- pectin是一种广泛用于凝剂的多糖体.
- 了解凝机制对于食品和制药行业至关重要.
研究的目的:
- 用低剂量玛辐射研究从pectin溶液中形成热可逆凝.
- 为了确定实现最大凝强度的最佳条件.
主要方法:
- 稀释的水性pectin溶液被照射低剂量的玛射线.
- 用无机酸调整溶液的pH值.
- 研究的变量包括pH,度,温度,辐射剂量,暴露时间,氧气存在和辐射保护剂.
主要成果:
- 低剂量胺溶液的马辐射诱导了热可逆凝的形成.
- 最大凝强度取决于特定的最佳条件.
- 缺少氧气和某些辐射保护剂对于达到最大凝强度至关重要.
结论:
- 马辐射提供了一种制造热可逆性pectin凝的方法.
- 精确控制环境和辐射参数对于优化凝特性至关重要.
相关概念视频
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
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Solubility
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A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules, atoms, and/or ions)...
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
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The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
Liquid–Solid Solutions
The process of a solid dissolving in a liquid to form a solution is governed by the solubility limit, which is the maximum amount of the solid substance, or solute, that can be dissolved in a specific volume of the liquid or solvent. As the solute dissolves, it reaches a point where no more solute can be dissolved at a given temperature - this is known as the saturation point. However, if further solute is added and it manages to dissolve, the solution becomes supersaturated. Supersaturated...


