Enzymatic esterification of plant-based cocoa butter substitute
This innovative process uses enzymatic esterification to create a cocoa butter substitute from palm fractions and mango kernel fat, offering a sustainable alternative with similar physical properties to cocoa butter.
Overview
The enzymatic esterification of plant-based oils such as palm mid fraction, palm stearin, and mango kernel fat represents a novel approach to creating a cocoa butter substitute (CBS). This research focuses on mimicking the distinctive triacylglycerol (TAG) composition of cocoa butter, which includes significant amounts of POP, StOSt, and POSt. By leveraging the high palmitic and oleic acid content in palm oils and the high stearic acid content in mango kernel fat, this process offers a sustainable and sensory-acceptable alternative to traditional cocoa butter.
Technical specifications
The process involves blending different ratios of palm mid fraction, palm stearin, and mango kernel fat, followed by enzymatic esterification using sn-1,3 position-specific lipases. The optimized conditions for the reaction include specific temperature, time, and enzyme load, aiming to match cocoa butter's melting profile and physical properties. Key analyses include:
- Fatty acid composition
- Triacylglycerol (TAG) analysis
- Melting profile analysis
- Solid fat content
- Polymorphism and crystal morphology analysis
Technology readiness level
The technology readiness level of this enzymatic esterification process is currently at TRL 4, indicating that the technology has been validated in a laboratory environment. Future validations will involve producing dark chocolate with the CBS and conducting sensory studies to ensure consumer acceptance.
About Monash University Malaysia
Monash University Malaysia is a comprehensive international branch campus in Greater Kuala Lumpur, combining a global research culture with local industry access. Co-located research and teaching facilities sit within an urban ecosystem of hospitals, multinational headquarters, and manufacturing sites, enabling on-the-ground collaboration and user-informed prototyping. Structured internships, capstone engagements, and sponsored projects connect companies with student and faculty talent year-round. Research draws competitive national funding from Malaysian agencies alongside international sponsors and collaborations across Monash’s global network. A dedicated technology transfer office supports IP strategy, contracting, and startup formation for partners operating in Malaysia and the region.
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