dynamics in chemical composition during
ripening of pomegranate
Kumar* and P.S. Gill
Fruit Science, Punjab Agricultural University, Ludhiana-141 004, India
Author E-mail: email@example.com
Major chemical composition,
Paper received : 17.03.2016
Revised received : 01.08.2016
Re-revised received :
Accepted : 07.10.2016
Aim: The present study
was undertaken to investigate the influence of pomegranate fruit
developmental and maturity stages on the major chemical composition of
pomegranate juice to identify the appropriate time of maturity of pomegranate
fruits of eight-year-old plants of pomegranate cv. 'Mridula' were picked
manually in the morning at different developments stages, viz., 30 to 150
DAFB at ten day interval. Harvested fruits were analysed for physico-chemical
arils juice showed a significant (p<0.05) increase in sugars and soluble
solids content during fruit development. However, titratable acidity and
total phenolics of aril juice decreased with advancement of fruit maturity.
There was 11.32 times increase in Vitamin C content of? juice during fruit
development, whereas about 2.38 fold decrease in juice acidity was recorded.
The reducing sugars content in aril juice was about 76.35 % - 81.93 % of
total sugars. There was overall depletion of total phenolics content during course
of fruit development. The results revealed that soluble solids content,
SSC/TA ratio, juice pH, reducing sugars, non-reducing sugars, total sugars
and Vitamin C of juice was abundant between 140-150 days after full bloom
(DAFB). Whereas, TA and TP declined and reached minimum between 140-150 DAFB.
SSC/TA ratio showed positive correlation with pH, sugars and Vitamin C, but
negatively correlated with TA and TP. The principal components analysis
showed that full ripened fruit at 140-150 DAFB recorded higher positive score
along component 1 and indicate optimum time of fruit harvest.
recent years, the search for a easy, reliable and simple determination of
maturation has employed the attention of countless pomegranate growers in?
different pomegranate production regions. The change in the chemical profile
of pomegranate from 30 DAFB to 150 DAFB of arils juice clearly explained
their growth, development and maturity stages. This information would help
pomegranate growers to access the maturity of 'Mridula' cultivars of
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