Akademik Veri Yönetim Sistemi
Open Agriculture, cilt.9, sa.1, ss.20220283, 2024 (ESCI)
Important quality components of red-fleshed
kiwifruit which was grown in three different regions in
North of Iran were investigated in this research. Fruits
produced in the region with higher altitude and cool
summer temperatures showed higher ascorbic acid content
(AAC), total phenolic content, and antioxidant activity
than the two other regions both at harvest time and storage.
It was observed that the 1,1-diphenyl-2-picrylhydrazyl
was positively correlated with the AAC (r = 0.98), total
phenolic content (r = 0.94), and the ferric reducing antioxidant
power was positively correlated with the AAC (r =
0.98), TPC (r = 0.93). Fruits harvested in region 2 with cool
environments, presented dark red flesh color with the
highest values of anthocyanin content at harvest (2.78 mg
CGE/100 g), with a gradually increasing trend during storage
to reach 3.47 mg CGE/100 g at the end of storage. Total
anthocyanin content correlated positively with soluble
solids content (SSC; r = 0.82), total Soluble sugars (TSS; r
= 0.94), pH (r = 0.94), SSC/titratable acidity (TA; r = 0.83) and
negatively with TA (r = −0.77). Fruits grown in region 2 received the highest SCC and TSS scores after sensory
test evaluations made by the panelists. During storage
fruits firmness and total acidity of kiwifruit decreased while
SSC, TSS, and anthocyanin content increased. Additionally,
antioxidant compounds and taste-related quality of kiwifruit
had a positive relationship with the product region.
Results showed that the growing region and storage duration
considerably influenced the antioxidant compounds
and nutritional quality of red flesh kiwifruit.