Data/hora: 02/06/2024 02:07:26

Provedor de dados: | Acta Agronómica
País: | Colombia
Título: | Effect of gamma radiation and pasteurization on the shelf-life of juçara pulp (Euterpe edulis)
Autores: | Moreira da Silva,Paula Porrelli; Prado Martin,José Guilherme; Fillet Spoto,Marta Helena.
Data: | 2018-12-01
Ano: | 2018
Palavras-chave: | Anthocyanins; Euterpe edulis; Irradiation; Non-Thermal Processing; Tropical Fruits.
Resumo: | Abstract Several 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 &lt; 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000400471
Editor: | Universidad Nacional de Colombia
Relação: | 10.15446/acag.v67n4.75132
Formato: | text/html
Fonte: | Acta Agronómica  v.67 n.4 2018
Fonte: | info:eu-repo/semantics/openAccess