Perspectives in the biological function and the technological application of polygalacturonases

Area of Science:

• Biochemistry
• Plant Science
• Enzymology

Background:

• Polygalacturonases (PG) have transitioned from food processing tools to key players in plant-fungal interactions.
• PG-inhibiting proteins (PGIP) are plant defense mechanisms against fungal PGs and also affect food processing.
• Plant PGs are vital for fruit ripening, leading to the development of PG-deficient transgenic plants.

Purpose of the Study:

• To highlight the diverse biological and technological significance of polygalacturonases (PG).
• To explore the evolving roles of PGs in plant-fungal interactions and food technology.
• To review current and potential applications of PGs in various industrial sectors.

Main Methods:

• Literature review of polygalacturonase (PG) research.
• Analysis of PG roles in plant physiology and pathology.
• Examination of industrial applications of fungal PGs and enzyme engineering.

Main Results:

• PGs are central to plant-fungal interactions and fruit ripening processes.
• PGIPs play a dual role in plant defense and food processing inhibition.
• Fungal PGs are extensively used in industrial juice clarification, with expanding enzyme sources.
• New applications for PGs in producing functional food ingredients are emerging.

Conclusions:

• Polygalacturonases (PG) possess significant biological and technological importance across multiple fields.
• Understanding PG and PGIP interactions is crucial for agricultural and food industries.
• Further research into PG applications, including functional food production, holds considerable promise.