Postharvest lenticel discoloration (LD) deteriorates the external appearance of mango fruit and is supposed to be associated with biochemical changes in fruit peel. Hence, an experiment was executed to ascertain the relationship between biochemical parameters such as polyphenol oxidase (PPO), peroxidase (POD), lipoxygenase (LOX), total phenol content (TPC) and fruit quality parameters i.e., external appeal of fruit (EAF), total soluble solids (TSS), total carotenoids (TC) to the incidence of LD. 30 (20 indigenous and 10 exotic) commercial mango varieties of India grown at ICAR-IARI, New Delhi, were harvested at full maturity and stored at ambient conditions (24 ± 4 ºC, 75 ± 5% RH) for 10 days. During the storage duration, fruit analyzed for LD (%), biochemical and quality parameters. Results revealed significant correlations existed between LD % and biochemical parameters as LD vs PPO (r² = + 0.98), LD vs POD (r² = + 0.79), LD vs LOX (r² = + 0.70) were found to be positively correlated, while LD vs TPC was negatively correlated. Similarly, among the quality parameters, LD found to have no relation with internal quality i.e., TSS (r² = + 0.08) and TC (r² = + 0.2), whereas negatively correlated with external quality i.e., EAF (r² = − 0.71). Our findings suggest that monitory loss of mango growers because of LD is solely due to deterioration of external quality. LD does not have any impact on internal/nutritional quality. Furthermore, the positive relationship of LD % with enzymes suggests their role and biochemical basis in causation and control of LD.

收获后皮孔变色（LD）会使芒果果实的外观变差，并可能与果皮的生化变化有关。因此，进行了一项实验以确定生化参数，例如多酚氧化酶（PPO），过氧化物酶（POD），脂氧合酶（LOX），总酚含量（TPC）与水果质量参数之间的关系，即，水果的外部吸引力（EAF），总可溶性固形物（TSS），总类胡萝卜素（TC）对LD的发生率。在新德里的ICAR-IARI上收获的30种（20种土著和10种外来）印度商业芒果品种已完全收获，并在环境条件（24±4ºC，75±5％RH）下保存10天。在储存期间，分析水果的LD（％），生化和质量参数。结果表明，LD％与生化参数之间存在显着相关性，因为LD vs PPO（r ²  = + 0.98），LD vs POD（r ²  = + 0.79），LD vs LOX（r ²  = + 0.70）被发现为正相关。 ，而LD vsTPC呈负相关。同样，在质量参数中，LD与内部质量无关，即TSS（r ²  = + 0.08）和TC（r ²  = + 0.2），而与外部质量，即EAF（r ²  =- 0.71）。我们的发现表明，由于LD而导致的芒果种植者损失的监测完全是由于外部质量的下降。LD对内部/营养质量没有任何影响。此外，LD％与酶的正相关表明它们在LD的病因和控制中的作用和生化基础。