A kind of color-protecting and fresh-keeping method of cowpea
A fresh-keeping method and cowpea technology are applied in the fields of fruit and vegetable fresh-keeping, food preservation, food science, etc., which can solve the problems of reduced ice treatment effect, decreased physiological quality, complicated operation, etc. rate effect
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Embodiment 1
[0024] 1. Material: Cowpea (Vignasesquipedalis) is collected from Hepu, Guangxi, and the variety is You Cow No. 1. 40-50 pods / bunch, transported to the Postharvest Biology Laboratory of South China Botanical Garden, Chinese Academy of Sciences in a foam box with ice on the day of picking, and then carried out the following fresh-keeping treatment.
[0025] 2. Treatment method: Select the cowpea fruit harvested when the tender pods are fully developed 10-15 days after flowering, the pods are full, crisp and tender, the pods are uniform in thickness, and the pods change from dark green to light green and slightly shiny. Sorting is carried out in order to remove diseased and pest fruits and defective fruits, so as to obtain cowpea pods without mechanical damage and disease and insect pests. The control and treatment fruits were soaked with clear water and freshly prepared AP (apple polyphenol) aqueous solutions of different concentrations (AP was dissolved in water, the specific ...
Embodiment 2
[0038] Material: Cowpea (Vignasesquipedalis) is collected from the Hepu area of Guangxi, and the variety is You Cow No. 1.
[0039] Processing method: freshly harvested cowpea 10-15 days after flowering on a sunny day, when the tender pods are fully developed, the pods are full, crisp and tender, the pods are uniform in thickness, and the pods change from dark green to light green and slightly shiny. Cowpea fruits are sorted to remove diseased and defective fruits and defective fruits to obtain cowpea pods without mechanical damage and pests. Control and treatment pods were soaked in water and freshly prepared AP aqueous solution with a mass fraction of 0.05% (dissolve 0.05g of AP in 100ml of water) for 10 minutes, take out the AP aqueous solution on the surface of the fruit and dry it, and cover it with a 0.01mm thick Packed in polyethylene film bags, 40-50 pods / bag, 5-6 bags per treatment, stored at 25°C for 6 days. Compared with the control, after being treated with 0.05...
Embodiment 3
[0041] Material: Cowpea (Vignase squipedalis) is collected from Hepu area, Guangxi, and the variety is "You cowpea No. 1".
[0042] Processing method: Freshly harvest cowpea 10-15 days after flowering on a sunny day. The tender pods are fully developed, the pods are full, crisp and tender, the pods are uniform in thickness, and the pods change from dark green to light green. Sorting is carried out to remove diseases and insect pests Fruit, defective fruit, to obtain cowpea pods without mechanical damage and pests and diseases. The control and treatment fruits were soaked with clear water and freshly prepared 5% AP aqueous solution (dissolving 5g of AP in 100ml of water) for 0.5min respectively, and after the AP aqueous solution on the surface of the fruit was taken out and dried, it was soaked with a 0.03mm thick Packed in polyethylene film bags, 40-50 pods / bag, 5-6 bags per treatment, stored at 25°C for 6 days.
[0043] Compared with the control, after being treated with 5% ...
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