An efficient method for anthocyanins lipophilization based on enzyme retention in membrane systems.

Area of Science:

• Biotechnology
• Food Chemistry
• Enzyme Technology

Background:

• Anthocyanins possess valuable antioxidant properties but suffer from poor stability and solubility.
• Lipophilization is a key strategy to enhance anthocyanin functionality for diverse applications.
• Enzyme immobilization offers a sustainable approach for biocatalytic modifications.

Purpose of the Study:

• To develop an efficient method for synthesizing cyanidin-3-glucoside-fatty acid conjugates.
• To investigate the use of immobilized Candida antarctica lipase B for anthocyanin lipophilization.
• To evaluate the impact of enzyme retention on reaction yield, time, and reusability.

Main Methods:

• Synthesis of cyanidin-3-glucoside-fatty acid conjugate using a lipase B-rich extract.
• Enzyme retention within a porous membrane without further purification.
• Comparison of reaction performance with and without enzyme immobilization.

Main Results:

• A 2.5-fold increase in lipophilization reaction yield was achieved using the membrane-retained enzyme.
• The reaction time was significantly reduced compared to using the free enzyme form.
• The immobilized enzyme demonstrated consistent conversion yields over three consecutive reaction cycles, indicating reusability.

Conclusions:

• Enzyme immobilization via porous membranes is an effective strategy for enhancing anthocyanin lipophilization.
• This method improves reaction efficiency, reduces processing time, and enables sustainable enzyme use.
• The developed technique offers a promising route for producing stable and functional anthocyanin derivatives for technological applications.