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Antioxidant, polygalacturonase, pectin methylesterase and polyphenol oxidase activities of fresh-cut wax apple (Syzygium samarangense) treated with organic acids

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dc.citedby2
dc.contributor.affiliationsUniversiti Putra Malaysia (UPM)
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.authorNur Izzah K.en_US
dc.contributor.authorAwang Y.en_US
dc.contributor.authorDing P.en_US
dc.contributor.authorHafiza Y.en_US
dc.contributor.authorSatar M.G.M.en_US
dc.date.accessioned2024-05-28T08:24:58Z
dc.date.available2024-05-28T08:24:58Z
dc.date.issued2015
dc.description.abstractThis study reports the effectiveness of various concentrations of ascorbic acid, citric acid and oxalic acid used as acidulants to regulate activities of antioxidant, polygalacturonase, pectin methylesterase and polyphenol oxidase of fresh-cut wax apple (Syzygium samarangense). The samples of fresh-cut wax apple, cut in wedges (1/8), were dipped into ascorbic acid, citric acid and oxalic acid at four different concentrations (0, 0.5, 1.0, 1.5 and 2.0%) for 1 min. The changes in the parameters were monitored for nine days while they are in storage at 4�C. Fruit treated with oxalic acid contained the highest antioxidant activity, followed by those treated with citric acid and ascorbic acid. The activity of antioxidant increased with the increasing storage period. Similar effects of acid treatments were detected for total phenolic contents. There was no effect of types of organic acids on polygalacturonase activity but acid dipping reduced the activity of the enzyme. In contrast, types of acids and acid concentration did not alter the activity of pectin methylesterase activity. Activity of pectin methylesterase in fruit sampled on day 6 and 9 were higher than those of the earlier dates. Similar pattern of effects of acid treatment were observed for polyphenol oxidase activity. � 2015 Asian Network for Scientific Information.
dc.description.natureFinalen_US
dc.identifier.doi10.3923/ajps.2015.72.77
dc.identifier.epage77
dc.identifier.issn16823974
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84945979944
dc.identifier.spage72
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84945979944&doi=10.3923%2fajps.2015.72.77&partnerID=40&md5=511210e789ca5a2b869cb66472a2eb08
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/8589
dc.identifier.volume14
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherAsian Network for Scientific Informationen_US
dc.relation.ispartofAsian Journal of Plant Sciences
dc.sourceScopus
dc.subjectAntioxidant activityen_US
dc.subjectCell wall enzymesen_US
dc.subjectMinimally processed fruitsen_US
dc.subjectOrganic acid treatmentsen_US
dc.subjectWax appleen_US
dc.titleAntioxidant, polygalacturonase, pectin methylesterase and polyphenol oxidase activities of fresh-cut wax apple (Syzygium samarangense) treated with organic acidsen_US
dc.title.alternativeAsian J. Plant Sci.en_US
dc.typeArticleen_US
dspace.entity.typePublication

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