Method for improving chlorophyll preservation of dehydrated green vegetable thermally stimulated free from selenium-enriched controlled and radical
A technology of free radicals and chlorophyll, applied in the field of storage, processing and vegetable cultivation, can solve the problems of vitamin damage, excessive copper and zinc content in vegetables, etc., and achieve the effect of increasing the content of selenium
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Embodiment 1
[0013] Example 1: Selenium-enriched treatment of green peppers and the color protection effect of scavenging free radicals
[0014] First plant green peppers in non-high selenium areas (selenium content in the soil is 0.1-0.5 μg / g), and the land area is about 50m 2 , the pH of the soil is about 6.5. Add 5ml, 0.05% Tween 80 per liter to the prepared inorganic selenium solution, spray the plants with a concentration of 75 μgSe / g at the seedling stage 15 days after seed germination, and then spray the flowers on the second day after flowering. Spraying treatment with a concentration of 220μgSe / g, and finally spraying the fruit with a concentration of 70μgSe / g 30 days before harvest; the inorganic selenium in the spray solution is sodium selenite. This method can make the harvested selenium-enriched green peppers contain 0.70-0.80 μg / g of total selenium, wherein the proportion of organic selenium reaches about 84%.
[0015] After harvesting, select 50 kg of the above-mentioned g...
Embodiment 2
[0016] Embodiment 2: Selenium-enriched treatment and scavenging free radical color protection effect of kidney bean
[0017] First plant beans in non-high-selenium areas (0.1-0.5μg / g selenium in the soil), with a land area of about 350m 2 , the pH of the soil is about 6.0. Add 10ml, 0.05% Tween 20 per liter to the prepared inorganic selenium solution, spray the plants with a concentration of 70 μg / g selenium at the seedling stage 15 days after the seeds germinate, and spray the flowers on the second day after flowering. The concentration of 200μgSe / g was sprayed, and finally the fruit was sprayed with a concentration of 60μgSe / g 25 days before harvest; the inorganic selenium in the spray solution was sodium selenite. This method can make the harvested selenium-enriched kidney beans contain 0.75-0.80 μg / g of total selenium, wherein the proportion of organic selenium reaches about 80%.
[0018] After harvesting, select 50 kilograms of the above-mentioned kidney bean raw mate...
Embodiment 3
[0019] Embodiment 3: Shallot selenium-enriched treatment and scavenging free radical color protection effect
[0020] First plant green onions in non-high-selenium areas (selenium content in the soil is 0.1-0.5μg / g), and the land area is about 200m 2 , the pH of the soil is around 7.0. Add 8ml, 0.03% sucrose fatty acid ester per liter to the prepared inorganic selenium solution, spray the plants with a concentration of 65 μg / g selenium at the seedling stage 15 days after seed germination, and then spray the plants with a concentration of 180 μg Se on the 30th day. / g spraying treatment, and finally 10 days before the harvest, the fruit was sprayed with a concentration of 50μgSe / g; the inorganic selenium in the spraying solution was sodium selenite. This method can make the harvested selenium-enriched shallots contain 0.85-0.90 μg / g of total selenium, wherein the proportion of organic selenium reaches about 87%.
[0021] After harvesting, select 50 kg of the above shallot raw...
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