Postharvest technologies for mangosteen (Garcinia mangostana L.) conservation

• Autor(a) principal: Castro,Maria Fernanda Pontes Penteado Moretzsohn de
• Data de Publicação: 2012
• Outros Autores: Anjos,Valéria Delgado de Almeida, Rezende,Ana Carolina Bortolossi, Benato,Eliane Aparecida, Valentini,Silvia Regina de Toledo
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Food Science and Technology (Campinas)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000400005
• topic: PVC (polyvinyl chloride); LDPE (low density polyethylene); carnauba wax; lecithin; CMC (carboxymethyl cellulose)

The application of technologies to extend the postharvest life of mangosteen fruit was studied and compared to storage at 25 °C/70-75%R.H (25 °C control treatment). The fruits were packed in expanded polystyrene (EPS) trays (5 fruits/tray). Five treatments were carried out at 13 °C/ 90-95% RH: application of carnauba wax coating, lecithin + CMC (carboxymethyl cellulose) coating, 50 µm LDPE (low density polyethylene) film coating, 13 µm PVC (Polyvinyl chloride), and non-coated sample (13 °C control treatment). Physicochemical analyses were performed twice a week. A statistical design was completely randomized with 8 repetitions for each treatment plus the control treatment. The results were submitted to variance analysis, and the averages compared by the Tukey test at 5% probability. Among the quality parameters analyzed, more significant differences were observed for weight loss, texture, and peel moisture content. The results showed that the maximum storage period for mangosteen at 25 °C is two weeks; while storage at13 °C can guarantee the conservation of this fruit for 25 days. Therefore, the treatment at 13 °C/90-95% RH without the use of coatings and films was more effective and economical.