Engineered biochar for organic compound removal in coconut water and beverage applications
Engineered biochar technology that selectively adsorbs organic compounds responsible for off-flavors in coconut water. Validated in water treatment applications with performance nearly twice that of activated carbon, this innovation offers beverage producers an effective, scalable solution for improving product flavor and quality.
Overview
This technology leverages engineered biochar as a selective adsorbent to remove organic compounds that cause unpleasant flavors in coconut water and other beverages. By manipulating the surface properties of biochar, the material can be tuned to target specific organic molecules while minimizing unwanted ion leaching. The approach offers the beverage industry a novel, high-performance alternative to conventional activated carbon for flavor improvement and product quality enhancement.
Technical specifications
Key features:
- Engineered biochar with a hydrophilic surface designed for selective adsorption of organic molecules
- Demonstrated adsorption capability for organic compounds including acetaminophen and disinfection by-product precursors, as well as ions such as nitrate, phosphate, and fluoride
- Performance nearly twice that of commercial activated carbon (Filtrasorb 400) under comparable conditions
- Continuous flow operation lasting more than one order of magnitude longer than activated carbon, even in water with high alkalinity (150 mg/L bicarbonate) and hardness (184 mg/L Ca)
- Reduced ion leaching compared to standard adsorbents
- Suitable for batch and continuous flow adsorption configurations
Target compounds:
- Aldehydes, including 4-hydroxybenzaldehyde (4-HB)
- Lactones and alcohols associated with off-flavors in coconut water
- Broader range of organic molecules relevant to beverage processing
Technology readiness level
The engineered biochar has been validated at laboratory scale for adsorption of multiple organic and inorganic contaminants in water matrices. Performance benchmarking against activated carbon has been completed in both batch and continuous flow systems. The next stage of development focuses on coconut water specifically, including characterization of organic compound profiles using LC-MS, batch adsorption testing with 4-HB and related compounds, and small-column continuous flow experiments to determine breakthrough behavior and upscale parameters for commercial beverage processing systems.
About Desert Research Institute
Desert Research Institute (DRI) is a Nevada-based nonprofit research institute and one of eight institutions in the Nevada System of Higher Education, with 600+ staff across campuses in Reno and Las Vegas. Its applied, interdisciplinary structure is built for sponsored research and direct collaboration with companies, government agencies, nonprofits, and universities. More than 40 specialized laboratories and facilities support this work, while the adjacent 328-acre Dandini Research Park connects DRI with Truckee Meadows Community College and the University of Nevada, Reno. Competitive support comes from NSF, NASA, DOE, DOD, DOI, USDA, and NNSA; a research office manages partnership agreements, and the Desert Research Corporation supports commercialization.
delivered to your inbox.