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Physio-chemical
properties and pigment changes in the pericarp of mango cultivars during
storage and ripening
B.
Killadi*, R. Chaurasia, D.K. Shukla and A. Dikshit
Division of Post
Harvest Management, ICAR- Central Institute for Subtropical Horticulture,
Lucknow -226 101, India
*Corresponding
Author E-mail: bharatipal.pal@gmail.com
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Key
words
Carotenoids
Chlorophyll
Mango cultivars
Pericarp pigments
Publication Data
Paper received : 05.05.2016
Revised received : 18.01.2017
Re-revised received :
05.05.2017
Accepted : 07.09.2017
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Abstract
Aim: The present
investigation aimed at quantifying the changes of pericarp pigments and
associated physio-chemical attributes in commercial cultivars of mango fruits
during storage and ripening.
Methodology:
Mango
fruits of cv ?Bombay Green?, ?Dashehari? and ?Langra? were harvested at
mature green stage and stored under ambient conditions (30 ?20C
and 85 to 90% R.H.). The fruits were periodically withdrawn at 2, 4, 6 and 8
days intervals to assess the pericarp chlorophylls, carotenoids and
physico-chemical attributes during storage and ripening.
Results:
Total
chlorophyll content in the proximal end of fruit pericarp decreased in
cultivar 'Bombay Green' while total carotenoids increased from the day of
harvest to 8th day of storage, with no external colour change.? In cultivar
'Dashehari', fruits had distinct yellow proximal end with decreased total
chlorophyll (6.09 to 3.07 mg100g-1), where total carotenoids
increased (7.45 to12.38 mg 100g-1) during storage period of 8
days. In cultivar 'Langra', similar trend was observed. The cumulative
physiological loss in weight (CPLW) was maximum (16.22%) in cultivar 'Bombay
Green', (13.30%) in cultivar 'Dashehari' and? minimum(12.39%) in cultivar
'Langra' on the 8th day of storage under ambient conditions. The pulp total
carotenoids content (10.03 mg100g-1) in 'Bombay Green', (7.36
mg100g-1) in 'Dashehari' and (5.18 mg100g-1) in
'Langra'. The total antioxidant content were (70.48 ?molesml-1) in
cultivar 'Langra', (70.39 ?molesml-1) in 'Dashehari' and (26.74
?mole ml-1) in 'Bombay Green' on the 8th day of storage. ??
Interpretation:
The
pigment changes in commercial cultivars of mango during storage and ripening
were variety specific in conjunction with chlorophyll degradation and total
carotenoids synthesis in pericarp and mesocarp.
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conclusions enforced or derived, rest completely with the author(s).
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