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Method for simultaneously increasing sulforaphane content and selenium content in edible organs of brassica vegetables

The technology of sulforaphane and Brassica is applied in the field of high-quality cultivation and regulation of vegetables, and can solve the problems of increasing the content of selenium-containing compounds without obvious change, and decreasing the content of sulforaphane.

Inactive Publication Date: 2020-01-10
HUNAN AGRICULTURAL UNIV
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Problems solved by technology

Among the previous foliar fertilizers, exogenous spraying of selenium fertilizers can increase the selenium content in broccoli curds and kale sprouts, but at the same time cause a significant decrease in the sulforaphane content; application of sulfur fertilizers can increase curd and the content of sulforaphane in cabbage sprouts, but there was no significant change with the increase of the content of selenium-containing compounds

Method used

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  • Method for simultaneously increasing sulforaphane content and selenium content in edible organs of brassica vegetables
  • Method for simultaneously increasing sulforaphane content and selenium content in edible organs of brassica vegetables
  • Method for simultaneously increasing sulforaphane content and selenium content in edible organs of brassica vegetables

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Experimental program
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Embodiment 1

[0015] 1. The formula and method of broccoli fertilization are shown in Table 1.

[0016] Table 1 Test treatment and effect

[0017]

[0018] Among them, the source of sulfur: magnesium sulfate (26.67% sulfur, 95% purity); the source of selenium: commercially available sodium selenite (98% purity).

[0019] 2. Application method of broccoli

[0020] Broccoli seeds were purchased from the Changsha Seed Market, sown on September 1, 2016, planted on September 25, 2016, and harvested on December 25, 2016. There are 3 replicates for each treatment, 15 plants for each replicate, and substrate cultivation is used.

[0021] Broccoli is sown in a substrate (grass: vermiculite=3:1) to raise seedlings, and is managed in a cultivation substrate. The nutrient solution is Hogland formula. After budding of broccoli, the sulphur fertilizer in Table 1 was applied to the roots and the selenium fertilizer in Table 1 was sprayed at 7 days intervals. In order to avoid nutrient deficiency, a unit dose of ...

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Abstract

The invention discloses a method for simultaneously increasing the sulforaphane content and the selenium content in the edible organs of brassica vegetables. According to the method, in the squaring stage of Brassica oleracea or the bolting stage of Brassica alboglabra, 1-4 mM of a sulfur fertilizer is subjected to root application, and 40-150 [mu]M of a selenium fertilizer is sprayed to leaf surfaces. According to the invention, by using the method, the sulforaphane content in the edible organs of brassica vegetables can be effectively increased by 13.5-59%, and the content of organic selenium can be effectively increased by 11.9-99.5 times.

Description

Technical field [0001] The invention relates to a method for improving the sulforaphane content and the selenium content in the edible organs of Brassica vegetables, and belongs to the field of high-quality vegetable cultivation and regulation. Background technique [0002] Sulforaphane is one of the substances with the best anti-cancer and anti-cancer effects in vegetables so far. It is abundantly present in cruciferous vegetables, especially Brassica cabbage vegetables. Selenium is a non-metallic element closely related to human health, and has multiple biological functions such as strengthening human immunity, anti-aging, and anti-cancer. Appropriate selenium supplementation can reduce the incidence of diseases such as arteriosclerosis, hypertension, myocardial infarction, senile neurological insufficiency, memory and mental retardation caused by fibrosis of the cardiovascular and cerebrovascular walls. [0003] Broccoli ( Brassica oleracea L. italica ) And Chinese kale ( Bra...

Claims

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Application Information

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IPC IPC(8): C05G1/00A01C21/00
CPCA01C21/005C05D5/00C05D9/02
Inventor 吴秋云黄科王军伟
Owner HUNAN AGRICULTURAL UNIV
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