关键词: 芒果, 采后, 色泽转化

Abstract: A comparative analysis of the colour change was carried out at postharvest of "Zihua" and "Guixiang" mangoes. The content of chlorophyll decreased and carotenoid increased gradually as fruit ripened. Compared with "Guixiang", the lower content of chlorophyll and higher level of H₂O₂ in "Zihua" mango were found, which was associated with the colour change of "Zihua" fruit. Treating the fruits with ethylene or H₂O₂ markedly accelerated the degradation of chlorophyll, resulting in yellow appearance of "Zihua" mango. However, it had little effect on the colour change of "Guixiang" mango.It suggests that the colour change of "Guixiang" mango is associated with the degradation of chlorophyll and the action of H₂O₂, and other factors are involved.

Key words: Mango, Postharvest, Colour change