“…Lipid oxidation could continuously accumulate primary products, including hydroperoxides, which were extremely unstable and would further decompose into small molecule secondary products such as aldehyde, ketone and acid ( Gao et al, 2022 ). Furthermore, the deterioration degree of watermelon seed quality could be evaluated by acid value (AV), peroxide value (PV), malondialdehyde (MDA) and anisidine (p-AV) values for the detection of oxidation products.…”