Scientists develop "a method for preserving color of cowpeas"
The “A Method for Protecting Colors of Kidney Beansâ€, which was completed by researchers from the South China Botanical Garden of the Chinese Academy of Sciences, was recently authorized by the national invention patent.
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Kidney beans are aliased with long pods, long beans, and powdered beans. Due to natural conditions, the oversupply of cowpeas in the summer and autumn seasons caused a large amount of accumulation, slow sales and low prices. Therefore, the problem of storage and transportation has become a bottleneck restricting the production, transportation and sales of cowpea.
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The invention discloses a method for preserving color preservation of cowpea, comprising: selecting a cowpea pod with no mechanical damage and pests and diseases after 10 to 15 days of harvesting on a sunny day; soaking the pod of the cowpea in the cowpea fresh liquid for 0.5 to 10 minutes The cowpea fresh-keeping liquid on the surface of the fruit is dried, and then stored in a fresh-keeping bag and stored. Wherein the cowpea fresh-keeping liquid is an apple polyphenol aqueous solution having a mass fraction of 0.05% to 5%. By treating the cowpea pod with this method, the commercial rate of cowpea can be increased by 15% to 69%.
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