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| Effects of phytic acid on postharvest quality and physiologyof mango fruits stored at ambient temperature |
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| Abstract: |
| To study the related physiological mechanism of maintaining the quality in mango by phytic acid（PA），
the effects of PA treatment on postharvest quality and physiology of‘ Tainong No.1’ mango fruits were investigated during
storage at ambient temperature（28-30℃）. The results indicated that the preservation effect of 0.2% PA treatment
was the best and significantly reduced the fruit decay incidence and disease index，enhanced the commodity fruit rate，
delayed yellowing of pericarp，maintained higher fruit firmness，compared to control. Moreover，0.2% PA treatment was
effective in maintaining fruit quality，as it significantly delayed the descent of TA content，the ascent of TSS content and
TSS-TA ratio，and maintained higher Vc content than control. Meanwhile，PA treatment also enhanced the activities
of superoxide dismutase（SOD），peroxidase（POD）
and polyphenol oxidase（PPO），and inhibited the
accumulation of malondialdehyde（MDA）in mango
fruits during storage. These results suggest that the effect
of PA in maintaining quality probably involves reducing
membrane-lipid peroxidation and slowing senescing
process. |
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