期刊
FOOD AND ENERGY SECURITY
卷 10, 期 3, 页码 -出版社
WILEY
DOI: 10.1002/fes3.277
关键词
food security; fresh-cut; post-harvest; sweet corn
资金
- University of California, Davis, NIFA (USDA, AES project) [CA-D-PLS-2518-H]
- Barfoots of Botley Ltd.
The demand for fresh-cut fruit and vegetables is rising due to global population growth and interest in plant-based diets. Sweet corn, harvested before maturity, is highly perishable and requires effective handling to maintain its taste, aroma, and color. Control of temperature and packaging films can significantly reduce post-harvest losses in sweet corn.
Demand for fresh-cut fruit and vegetables is increasing, in the face of global population growth and new interest in plant-based diets. At the same time, year-round supply across the world of popular vegetables means that post-harvest losses, which can be significant, need to be minimized in the face of complex global supply chains and markets. Sweet corn (Zea mays L.) is harvested before physiological maturity when the kernel has high water and sugar concentrations making it a very perishable fresh produce and effective post-harvest handling essential to reduce losses and ensure quality. Taste, aroma and colour are the main customer-appreciated characteristics, hence the most important to preserve. Among the sweet corn post-harvest disorders, loss of sweetness, dehydration, fungal growth and post-cooking browning are the biggest issues impacting sweet corn quality, leading to post-harvest losses. The critical factor driving these losses in sweet corn is temperature. Sweet corn is not a chilling sensitive product and has high sugar content. For this reason, temperatures as close as 0 degrees C and the appropriate use of packaging films to create an altered gas composition with high CO2 and low O-2 concentrations can significantly prevent post-harvest decay. The use of low temperatures and effective choice of appropriate packaging films can control sweet corn respiration rates and prevent microorganism growth, subsequently delaying quality loss. This comprehensive review assembles a description of the most customer-appreciated sweet corn characteristics. And it describes the major sweet corn post-harvest challenges and provides a summary of four approaches to improve post-harvest quality in this popular fresh-cut vegetable.
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