No doubt , role of secondary metabolites are known in plant health safeguard. Accumulation of primary or secondary metabolites is likely delay the softening of tissues , thereby , possibly delay the deterioration in anthocyanin pigments , could retain the taste for an extended period and maintain the organo-leptic taste of tomato.
Important primary metabolites to measure for tomato fruits are sugers like glucose, sucrose and fructose and organic acids like ascorbic acid, citric acid and malic acid.