ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Use of different wax films for the prevention of dehydration of the rachis of table grapes postharvest.

Baez Sanudo, R.; Bringas-Taddei, E.; Ojeda-Contreras, J. Y.; Mercado-Ruiz, J. N.;

Proceedings of the Interamerican Society for Tropical Horticulture

2001

บทคัดย่อ

Mexico exports about 6 million 18-lb boxes of table grapes yearly to the United States market. During the last years, exporters have been trying to reach the European and Asian market, offering fruits with good quality. Rachis dehydration occurs during handling and transportation of table grapes, and is the main problem in the quality of fruits reaching the markets. Table grapes must maintain good quality for 20-30 days after harvest. Edible films or coatings could be a good alternative to prevent the problem since this compound modulates the tissue permeability, decreasing water loss and dehydration rate. The objective of this work was to evaluate the effects of edible films, prepared in our laboratory, to 'Perlette' and 'Flame seedless' table grapes. We observed in the laboratory that films with lesser fatty acid content, and 0.1% fungistatic compounds+0.1% of emulsifier were best in preventing fresh weight loss of 'Perlette' table grapes while films containing 0.05% carboxymethyl cellulose, 0.1% carbohydrates, 0.1% fatty acid, 0.1% of fungistat and 0.1% of emulsifier were best for 'Flame seedless' table grapes.