Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/31969
Título: Cassava starch edible coating incorporated with propolis on bioactive compounds in strawberries
Título(s) alternativo(s): Revestimento com fécula de mandioca incorporada com própolis nos compostos bioativos em morangos
Palavras-chave: Phytochemicals
Fragaria ananassa
Morangos - Atividade antioxidante
Fitoquímicos
Strawberries - Antioxidant activity
Data do documento: Jan-2016
Editor: Universidade Federal de Lavras
Citação: THOMAS, A. B. et al. Cassava starch edible coating incorporated with propolis on bioactive compounds in strawberries. Ciência e Agrotecnologia, Lavras, v. 40, n. 1, p. 87-96, Jan./Feb. 2016.
Resumo: Strawberry is a fruit appreciated throughout the world due to its attractive quality attributes and stands out due to its high phenolic compound content, which positively contribute to biological properties of nutritional interest. The objective of this study was to evaluate the effect of cassava starch coatings incorporated with propolis combinations on the phytochemical content and the maintenance and increase of the strawberry antioxidant activity. The treatments were 3% cassava starch (CS), 3% cassava starch + 33% ethanolic propolis extract (CS + P33%), 3% cassava starch + 66% ethanolic propolis extract (CS + P66%) and control (C). The fruits were stored at 4 °C ± 0.5 ºC and 90%RH for 16 days, making up a completely randomized design with 4 treatments and 5 time evaluations. Vitamin C, phenolic compound, anthocyanin, and antioxidant activity levels were evaluated through two methods. The coating with 66% of propolis promoted higher Vitamin C content than fruits submitted to the other treatments at 8 and 12 days of storage. For antioxidant activity, fruits treated with CS maintained a higher FRS percentage (free radical scavenging) at all time evaluations. Control fruits presented higher anthocyanin content at the last evaluation time when the highest antioxidant capacity, by the ABTS method (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)), was observed in fruits with CS and CS + P66% treatments. There was an increase tendency of the phenolic content during storage in all evaluated fruits. The propolis concentrations used, however, were not sufficient to increase or maintain the antioxidant capacity and phenolic contents of strawberries.
URI: http://repositorio.ufla.br/jspui/handle/1/31969
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