Modeling the effect of time and temperature on respiration rate of pomegranate arils (cv. ‘‘Acco’’ and ‘‘Herskawitz’’)

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dc.contributor.authorCaleb, Oluwafemi James
dc.contributor.authorMahajan, Pramod V.
dc.contributor.authorOpara, Umezuruike Linus
dc.contributor.authorWitthuhn, Corli R.
dc.date.accessioned2012-08-07T13:30:17Z
dc.date.issued2012-03
dc.descriptionThe original publication is available at http://onlinelibrary.wiley.comen_ZA
dc.description.abstractAbstract: Understanding the effect of time and temperature on the respiration rate (RR) of fresh-cut produce, towards the design of a suitable modified atmosphere packaging (MAP) system, requires an adequate mathematical model for prediction of RR as a function of both time and temperature. This study investigated the effect of temperature (5, 10, and 15 ◦C) and storage time (1 to 5 d) on the RR (RO2 and RCO2 ) of 2 pomegranate cultivars (cv. ‘‘Acco’’ and ‘‘Herskawitz’’) fresh arils. RO2 and RCO2 were 3 to 4 folds significantly higher with increased temperature from 5 to 15 ◦C and were within the range of 2.51 to 7.59 mL/kg h and 2.72 to 9.01 mL/kg h, respectively, for both cultivars. At 15 ◦C RCO2 increased significantly from 8.4 to 25.96 mL/kg h from day 1 to 5, respectively, while at 5 ◦C RCO2 changed from 2.9 to 2.05 mL/kg h from day 1 to 5. Temperature had the greatest influence on RR and the interaction of time and temperature also significantly affected RO2 and RCO2 . The respiratory quotient (RQ) estimated by linear regression was 0.98 at 95% significant level. The dependence of RR on temperature and time was accurately described with a combination of an Arrhenius-type and power equation model for RO2 and RCO2 of fresh pomegranate arils.en_ZA
dc.description.versionPublishers' Versionen_ZA
dc.embargo.lift2050-12-31
dc.embargo.terms2050-12-31en_ZA
dc.format.extentp. E80-E87 :ill. (some col.)en_ZA
dc.identifier.citationCaleb, O. J, Mahajan, P. V., Opara, U. L. & Witthuhn. 2012. Modeling the effect of time and temperature on respiration rate of pomegranate arils (cv. ‘‘Acco’’ and ‘‘Herskawitz’’). Journal of Food Science, 77(4), E80-E87, doi:10.1111/j.1750-3841.2012.02623.x.en_ZA
dc.identifier.issn1750-3841 (online)
dc.identifier.issn0022-1147 (print)
dc.identifier.otherdoi:10.1111/j.1750-3841.2012.02623.x
dc.identifier.urihttp://hdl.handle.net/10019.1/22026
dc.language.isoen_ZAen_ZA
dc.publisherWiley Blackwellen_ZA
dc.rights.holderWiley Blackwellen_ZA
dc.subjectFresh-cut produce -- Postharvest technologyen_ZA
dc.subjectModified atmosphere packaging systemen_ZA
dc.subjectRespiration modelen_ZA
dc.titleModeling the effect of time and temperature on respiration rate of pomegranate arils (cv. ‘‘Acco’’ and ‘‘Herskawitz’’)en_ZA
dc.typeArticleen_ZA
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