Articles
The relationship between exocarp colour development and pigments of different size Hass avocado fruit during ripening
Article number
1340_14
Pages
93 – 98
Language
English
Abstract
The purpose of this work was to study two groups of statistically different avocado fruit sizes (Persea americana Mill.) small-sized (<200 g) and large-sized (>201 g) and their difference in colour development and pigments (chlorophyll, carotenoids, anthocyanin and cyanidin-3-O-glucoside), in the exocarp during ripening.
Fruits were stored at 5.5°C for up to 28 d, then ripened at 25°C. There was no significant difference between the firmness of small and large fruit after 4 d of ripening.
We found that after 4 ripening days at 25°C, smaller fruit exhibited a significantly higher visual colour score (5-purple) than large fruit with a lower visual colour score (3-olive green). Exocarps of small fruit displayed significantly lower chlorophyll and carotenoids after day 4 than those of large fruits.
The results indicated that the pigments (total anthocyanin and cyanidin-3-O-glucoside) in small fruits were significantly higher than those in large fruits across.
Fruits were stored at 5.5°C for up to 28 d, then ripened at 25°C. There was no significant difference between the firmness of small and large fruit after 4 d of ripening.
We found that after 4 ripening days at 25°C, smaller fruit exhibited a significantly higher visual colour score (5-purple) than large fruit with a lower visual colour score (3-olive green). Exocarps of small fruit displayed significantly lower chlorophyll and carotenoids after day 4 than those of large fruits.
The results indicated that the pigments (total anthocyanin and cyanidin-3-O-glucoside) in small fruits were significantly higher than those in large fruits across.
Authors
K. Shikwambana, T.P. Mafeo, N. Mathaba
Keywords
Hass, anthocyanin, cyanidin-3-O-glucoside
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