Eco-friendly adsorbent for selective removal of organics from coconut water

Overview

This solution offers an eco-friendly, cost-effective adsorbent designed to selectively remove unwanted organic compounds from coconut water, improving its flavor profile. By leveraging modified agricultural residues as the adsorbent material, the technology provides a sustainable alternative to commercial adsorbents while lowering overall treatment costs. The approach addresses common limitations of untreated agricultural residues—such as low adsorption capacity, fragility, and coloration—by applying chemical and electrochemical modification methods that enhance performance and selectivity.

Technical specifications

Core technology:

• Uses agricultural residues (e.g., straw, hulls) as the base adsorbent material, reducing reliance on commercial alternatives
• Applies chemical and electrochemical surface modification to introduce new functional groups that serve as targeted adsorption sites
• Modification increases adsorption capacity and enables selective uptake of specific organic compounds
• Designed to selectively remove targeted organics from coconut water in shorter treatment times

Validation evidence:

• Canola straw particles modified using the same approach showed a 30-fold increase in adsorption capacity for arsenic
• Modified adsorbents demonstrated faster selective adsorption compared to untreated residues
• New functional groups formed on particle surfaces were confirmed as active adsorption sites

Technology readiness level

The underlying modification methodology has been validated through prior studies demonstrating significant improvements in adsorption capacity and selectivity for arsenic removal using canola straw particles. The technology is now entering a new application phase targeting organic compound removal from coconut water. Planned validation steps include identifying target organic compounds in coconut water, screening agricultural residues for suitable functional groups, treating particles to improve accessibility, and applying chemical or electrochemical modifications to introduce new adsorption sites. The technology is at an early-to-mid stage of development for this specific application, with proven methodology ready for adaptation and pilot-scale evaluation.