ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Polysaccharide from Anacardium occidentale L. tree gum (Policaju) as a coating for Tommy Atkins mangoes
Marthyna P. Souza, Miguel A. Cerqueira, Bartolomeu W. S. Souza, José A. Teixeira, Ana L. F. Porto, António A. Vicente, and Maria G. Carneiro-da-Cunha
Departamento de Bioquímica, Universidade Federal de Pernambuco, Av. Prof Moraes Rego, s/n, Cidade Universitária, 50670-420 Recife, PE, Brazil
Received: 30 September 2009 Revised: 17 November 2009 Accepted: 19 November 2009
Abstract: Policaju-based coatings were applied on “Tommy Atkins” mangoes and the effects of four different treatments on mango shelf-life
were evaluated under storage condition at 4°C and 82 % of relative humidity over 28 days. The surface tension of mangoes was
found to be 29.04 mN m−1; the dispersive and polar components were 27.57 mN m−1 and 1.47 mN m−1, respectively, and the critical surface tension was 22.7 mN m−1. A significantly lower mass loss was observed in all mangoes treated with Policaju-based coatings. For all applied treatments,
no significant variation in the total soluble solids and pH was detected over the experimental storage time. The results show
that Policaju-based coatings have a positive effect on the shelf-life extension of mangoes at low storage temperatures (4°C).
Keywords: Policaju - edible coating - shelf-life - mango
Full paper is available at www.springerlink.com.
Chemical Papers 64 (4) 475–481 (2010)