Continuous Production of Resveratrol by Surface-Adhered Grape Cells

Area of Science:

• Biotechnology
• Plant Cell Culture
• Natural Product Synthesis

Background:

• Resveratrol is a natural product with diverse biological activities, primarily sourced from plants and fruits.
• Current production methods face challenges in efficiency and scalability for nutraceutical-grade resveratrol.

Purpose of the Study:

• To develop an efficient and continuous production process for nutraceutical-grade resveratrol.
• To investigate the efficacy of surface-adhesion-based immobilization of grape cells for enhanced metabolite production.

Main Methods:

• Development of a grape suspension cell culture for resveratrol production.
• Exploitation of surface-adhesion-based immobilization for continuous (repeated-batch) culture.
• Implementation of a preimmobilization approach to improve cell adhesion and process stability.

Main Results:

• Initial immobilized cell cultures achieved a maximum resveratrol production of 413 mg/L.
• A preimmobilization strategy significantly improved the stability of continuous production.
• Continuous culture over 56 days (seven batches) yielded an average of 163 mg/L, a 2.2-fold increase over suspension culture.

Conclusions:

• Surface adhesion of plant cells is an effective strategy for long-term, continuous production of plant metabolites like resveratrol.
• Immobilization technology offers a promising route for scalable and efficient nutraceutical production.
• This approach enhances the stability and yield of valuable compounds from plant cell cultures.