Theoretical Insight into Psittacofulvins and Their Derivatives.

Area of Science:

• Biochemistry and Molecular Biology
• Computational Chemistry
• Materials Science

Background:

• Psittacofulvins are natural pigments found in parrot feathers, providing coloration and protection.
• These polyenal dyes possess antioxidant and antimicrobial properties, but their full potential remains underexplored.
• Understanding their chemical activity is key to unlocking their applications.

Purpose of the Study:

• To investigate the thermodynamic and global chemical activity descriptors of natural and synthetic psittacofulvins.
• To evaluate the potential bioactivity and applicability of psittacofulvins and their derivatives.
• To identify novel psittacofulvin structures with enhanced properties.

Main Methods:

• Density Functional Theory (DFT) calculations at the B3LYP/QZVP level.
• Application of the C-PCM solvation model to simulate aqueous environments.
• Analysis of thermodynamic and global chemical activity descriptors.

Main Results:

• Characterization of four natural and three synthetic psittacofulvins, along with their derivatives.
• Identification of specific psittacofulvin structures with high bioactivity potential.
• Evidence supporting the existence of a fifth psittacofulvin (docosadecaenal) in parrot feathers.

Conclusions:

• Psittacofulvins exhibit significant potential as multifunctional ingredients in pharmaceuticals, cosmetics, supplements, and food.
• Their roles as preservatives, radical scavengers, and coloring agents are supported by computational analysis.
• The study provides a foundation for the development and application of these versatile natural compounds.