ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Standardization of refrigerated conditions for storage of ‘ Mosambi’ sweet orange and ‘Kagzi’ acid lime grown in tropical central India

M.S. Ladaniya

Proceedings of 26th International Horticultural Congress. Volume of Abstract . Toronto, Canada, 11-17 August, 2002. Abstract S09-P-66. pp. 243.

2002

บทคัดย่อ

‘Mosambi’ sweet orange (Citrus sinensis Osbesk) fruit were stored at 4+-1 ⁰C, 6+-1 ⁰C and 8+-1 ⁰C whereas ‘Kagzi’ acid lime (Citrus aurantifolia Swingle) fruit (mature yellow) were stored at 6+-1 ⁰C, 8+-1⁰C and 10+-1⁰C with 90-95 % relative humidity up to 90 days in vented polyethylene-lined corrugated cartons. Fruit were washed with chloring solution (1000 ppm) and dip-treated with carbendazim (500 ppm) before storage. Chilling injury appeared in ‘Mosambi’ orange after 90 day under all three temperatures regimes. In acid lime, at 6+-1 ⁰C, 10.20% fruit developed chilling injury symptoms like pitting and sunken areas inside the storage after 30 days and injury increased to 28.60 % after 90 days. ‘Mosambi’ orange and acid limes developed deeper rind colour at 8+-1 ⁰C and 10+-1 ⁰C,respectively. At 10+-1 ⁰C acid limes developed senescent sumptoms (dry brown sunken irregular spots on rind) in 16.40% fruit after 90 days. Decay losses were <1% after 90 days. Changes in physico-chemical characteristics such as ascorbic acid, soluble solids, titratable acidity and juice content, fruit firmness, rind colour and fruit weight loss at various temperatures are discussed. Temperatures of 8+-1 ⁰C and 6+-1⁰C were found most optimum for long-term refrigenated storated of ‘Kagzi’ acid lime (yellow) and ‘Mosambi’ sweet orange fruit, respectively.