Effect of the use of coatings on storage life of Mexican lime (Citrus aurantifolia Swingle) from Colima, Mexico harvested in two different periods
Elsa Bosquez-Molina, Julieta Dominguez-Soberanes, Fernando Diaz-de-Leon-Sanchez, Jaime Vernon-Carter, Laura Perez-Flores
Proceedings of 26th International Horticultural Congress. Volume of Abstract . Toronto, Canada, 11-17 August, 2002. Abstract S20-P-92. pp. 521.
2002
บทคัดย่อ
Most subtropical origin crops are cold susceptible, any decrease below the critical storge temperature (10-13 0C) reduces storage life. Degreening and chilling injury are the major postharvest problems found in Mexican limes, having as a consequence a loss of up to 50% of production. Therefore, the use of three different natural coatings was studied and compared with a commercial wax on Mexican limes harvested in the beginning (June 2001) and at the end (August 2001) of the harvest season and stored at 4, 7, 10 and 20 0C and 90% RH. The coatings were based on: (1 and 2) candelilla-mezquite-mineral oil (CMNO) in a ratio 1:1 and in a ratio 2:1 and (3) the aforementioned components with Tween Span 60 added. Chilling injury percentage, peel color physiological weight loss percentage (% PWL), juice percentage, titratible acidity (expressed as % of citric acid), total soluble solid content (TSS) were determined every three days in triplicate. No diffrences among treatments were found in TSS, juice percentage and titratible acidity. A synergistic effect was found when CMMO 1:1 was applied on limes stored at 10 0C, resulting in less chilling injury, less % PWL and greener color, in general the best quality in limes. Differences were observed between harvested periods, demonstrating that the overall quality of limes harvested at the beginning of the season was the best.