title: The arils characterization of five different pomegranate (Punica granatum) genotypes stored after minimal processing technology.
abstract: In this study, the quality of minimally processed different Iranian pomegranate genotypes was investigated during storage at 4 °C for 14 days. The results showed that at the end of storage time, the lowest microbial count was found on the arils of "Torsh Syabe Lorestan" genotype. There was a significant difference in titratable acidity, total soluble solids, total anthocyanin, catechin, and quercetin content in most genotypes after 14-day cold storage; while no difference was found between studied genotypes in antioxidant capacity, total phenolic, and flavonoid content. In general, total phenolic content and antioxidant capacity of pomegranate arils gradually decreased over storage time. Diphenolase activity of polyphenol oxidase (PPO) enzyme with dopamine hydrochloride substrate and peroxidase (POD) decreased over storage time, whereas diphenolase activity of PPO with pyrocatechol substrate significantly increased. The lowest diphenolase activity with dopamine hydrochloride and pyrocatechol substrates, as well as POD activity was found in Torsh Syabe Lorestan. The results suggested that the genotype of Torsh Syabe Lorestan, which showed the lowest microbial count on the arils and enzymes, could be more appropriate for minimal processing technology.
authors.affiliation: Department of Horticultural Science, Faculty of Agriculture, University of Guilan, Rasht, Iran.
authors.forename: Mahmood
authors.initials: M
authors.lastname: Ghasemnezhad
authors.affiliation: Department of Horticultural Science, Faculty of Agriculture, University of Guilan, Rasht, Iran.
authors.forename: Somayeh
authors.initials: S
authors.lastname: Zareh
authors.affiliation: Department of Horticultural Science, Faculty of Agriculture, University of Guilan, Rasht, Iran.
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Shiri
authors.affiliation: Department of Horticultural Science, Faculty of Agriculture, University of Guilan, Rasht, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Javdani
keywords: Anthocyanin; Antioxidant; Minimal processing; Polyphenol oxidase; Polyphenols; Pomegranate
references.citation: J Agric Food Chem. 1999 Nov;47(11):4638-44
references.pmid: 10552863
references.citation: J Agric Food Chem. 1999 Nov;47(11):4718-23
references.pmid: 10552879
references.citation: Toxicology. 2002 Aug 1;177(1):67-80
references.pmid: 12126796
references.citation: J Agric Food Chem. 2002 Oct 9;50(21):5925-31
references.pmid: 12358461
references.citation: Mol Nutr Food Res. 2009 Sep;53 Suppl 2:S151-83
references.pmid: 19065581
references.citation: Arch Latinoam Nutr. 2009 Mar;59(1):101-6
references.pmid: 19480352
references.citation: J Sci Food Agric. 2013 Jan;93(2):368-74
references.pmid: 22821221
references.citation: Food Chem. 2008 Oct 15;110(4):838-46
references.pmid: 26047268
references.citation: Biochim Biophys Acta. 1995 Feb 22;1247(1):1-11
references.pmid: 7873577
references.citation: Anal Biochem. 1995 Oct 10;231(1):237-46
references.pmid: 8678307