Effect of gamma radiation and pasteurization on the shelf-life of juçara pulp (Euterpe edulis)

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dc.creatorPaula Porrelli Moreira da Silva
dc.creatorJosé Guilherme Prado Martin
dc.creatorMarta Helena Fillet Spoto
dc.date2018
dc.date.accessioned2026-07-07T02:34:58Z
dc.descriptionSeveral studies about juçara palm fruit (Euterpe edulis) have emphasized its high antioxidant capacity. However, there is a lack of studies comparing the effects of conservation technologies on the physicochemical and sensory quality of juçara pulp. This work aimed at evaluating the effects of gamma radiation (60Co) and pasteurization process on the physicochemical and sensory quality ofjuçara pulp. The irradiated (2.5 ± 0.06 kGy) and pasteurized (80°C/5 minutes) pulps were stored at 6°C, 90% RH, for 30 days (3 periods of analysis) and were analyzed for their microbiological, physicochemical (titratable acidity, soluble solids content, color, phenolic compounds, anthocyanin content, polyphenol oxidase and peroxidase activity) and sensory parameters (acceptance test). The physicochemical results were submitted to ANOVA for the ‘F’ test and the statistical difference of averages (P < 0.05) was determined by the Tukey’s test. The results of the sensory analysis were submitted to Principal Component and Cluster Analysis. The gamma radiation did not show satisfactory results in the preservation ofjuçara pulp since there was a significant decrease in total phenolics and anthocyanin content. The pasteurized pulp maintained its physicochemical and sensory characteristics during storage. Therefore, we recommend the pasteurization as a good conservation technique to this kind of product, which presented a shelf-life of around 15 days.
dc.formatapplication/pdf
dc.identifier0120-2812
dc.identifierhttps://www.redalyc.org/articulo.oa?id=169959535002
dc.identifierhttps://www.redalyc.org/journal/1699/169959535002/
dc.identifierhttps://www.redalyc.org/journal/1699/169959535002/html/
dc.identifierhttps://www.redalyc.org/journal/1699/169959535002/169959535002.epub
dc.identifierhttps://www.redalyc.org/journal/1699/169959535002/movil
dc.identifier10.15446/acag.v67n4.75132
dc.identifier.urihttp://hdl.handle.net/123456789/420122
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1699
dc.rightsActa Agronómica
dc.sourceActa Agronómica (Colombia) Num.4 Vol.67
dc.subjectAgrociencias
dc.titleEffect of gamma radiation and pasteurization on the shelf-life of juçara pulp (Euterpe edulis)
dc.typeartículo científico

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Acta Agronómica - Universidad Nacional de Colombia