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Related Concept Videos

Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

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Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
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Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
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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...
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Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
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Small molecules interfacial assembly regulate the crystallization transition process for nobiletin stabilization.

Xiaojuan Chen1, Bojia Li2, Sicheng Ji2

  • 1College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, China.

Food Chemistry
|June 17, 2023
PubMed
Summary
This summary is machine-generated.

Researchers used polyphenols to inhibit Nobiletin crystallization, a key step for using bioactive nutraceuticals as supplements. Optimized conditions at 4°C and pH 4.0 were identified, paving the way for enhanced functional food applications.

Keywords:
AntisolventCrystallization inhibitionInterface assemblyNucleationSmall molecules interactionSupersaturation

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Area of Science:

  • Nutraceutical science
  • Materials science
  • Biochemistry

Background:

  • Bioactive nutraceuticals offer health benefits but are limited by hydrophobicity and crystallization.
  • Inhibiting nutrient crystallization is crucial for developing effective functional supplements.

Purpose of the Study:

  • To investigate the potential of diverse structural polyphenols in inhibiting Nobiletin crystallization.
  • To identify optimal conditions for Nobiletin crystallization inhibition.

Main Methods:

  • Exploited various polyphenols as crystallization inhibitors for Nobiletin.
  • Studied the influence of polyphenol gallol density, Nobiletin supersaturation, temperature, and pH on crystallization.
  • Analyzed the driving forces of molecular assembly.

Main Results:

  • Identified optimal conditions for Nobiletin crystallization inhibition at 4°C and pH 4.0.
  • Determined that hydrogen bonding, π-π stacking, and electrostatic interactions are key driving forces.
  • Established an optimal Nobiletin/tannic acid (TA) combination ratio of approximately 3:1.

Conclusions:

  • Developed an innovative synergistic strategy for inhibiting Nobiletin crystallization using polyphenols.
  • Broadened the potential applications of polyphenol-based materials in advanced biological and functional food fields.