Binding agent 1 Bonded composites 1 Bonding characteristics Cell wall polymers 1 Chemical Bonds 1 Chemical bonds 1 Chemical modification 1 Citric Acid 1 Citric acid 1 Citrus Fruits 1 Citrus fruits 1 Crosslinking 1 Environmental impact 1 Esterification 1 Esterification reactions 1 Esters 1 Fruits and vegetables 1 Optimum parameters 1 Reaction mechanism 1 Wood 1 Wood composite 1 Wood modification 1 Wood-based panels 1