Pomegranate fruit (Punica granatum L.) has gained commercial importance in recent years in the food and
health industries due to increasing scientific evidence linking its consumption to better health outcomes.
In the present study, the evolution of some chemical contents, individual organic acids and sugars, phenolic
composition and antioxidant capacity of pomegranate (cv. ‘Bhagwa’) during maturation was investigated.
The results showed significant (Pb0.05) increases in sugar content, ascorbic acid and total anthocyanins during
fruit maturation, while significant decreases occurred in titratable acidity (TA), organic acids and total
phenolic contents (TPCs). The significant increase in TSS/TA ratio, which plays a significant role in juice flavor,
peaked at 140 DAFB, while the highest accumulation of anthocyanin content occurred at the full-ripe stage
(165 DAFB). Total antioxidant capacity (both DPPH and FRAP) declined during fruit maturation, suggesting
a decrease in antioxidant power of fruit juice. Strong correlations between TPC and antioxidant capacity measured
by the DPPH (r2=0.99) and FRAP (r2=0.96) methods were observed. Fructose and glucose were
established to be the major sugars in the fruit cultivar while tartaric acid was the predominant organic
acid. Principal component analysis (PCA) showed that harvest maturity of ‘Bhagwa’ pomegranate fruit is
dependent on time from full bloom hence could be fixed around 165 DAFB, where fruits were characterized
by intense fruit and aril pigmentation as well as high juice quality parameters. This information provided
could help pomegranate juice producers to assess and optimize juice quality and antioxidant value of
‘Bhagwa’ pomegranate cultivar through maturity.
Pomegranate fruit (Punica granatum L.) has gained commercial importance in recent years in the food andhealth industries due to increasing scientific evidence linking its consumption to better health outcomes.In the present study, the evolution of some chemical contents, individual organic acids and sugars, phenoliccomposition and antioxidant capacity of pomegranate (cv. ‘Bhagwa’) during maturation was investigated.The results showed significant (Pb0.05) increases in sugar content, ascorbic acid and total anthocyanins duringfruit maturation, while significant decreases occurred in titratable acidity (TA), organic acids and totalphenolic contents (TPCs). The significant increase in TSS/TA ratio, which plays a significant role in juice flavor,peaked at 140 DAFB, while the highest accumulation of anthocyanin content occurred at the full-ripe stage(165 DAFB). Total antioxidant capacity (both DPPH and FRAP) declined during fruit maturation, suggestinga decrease in antioxidant power of fruit juice. Strong correlations between TPC and antioxidant capacity measuredby the DPPH (r2=0.99) and FRAP (r2=0.96) methods were observed. Fructose and glucose wereestablished to be the major sugars in the fruit cultivar while tartaric acid was the predominant organicacid. Principal component analysis (PCA) showed that harvest maturity of ‘Bhagwa’ pomegranate fruit isdependent on time from full bloom hence could be fixed around 165 DAFB, where fruits were characterizedby intense fruit and aril pigmentation as well as high juice quality parameters. This information providedcould help pomegranate juice producers to assess and optimize juice quality and antioxidant value of‘Bhagwa’ pomegranate cultivar through maturity.
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