Method for extraction and purification of corn silk general flavone, and use of corn silk general flavone
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The technology of corn silk extract and corn silk is applied in the field of production technology of extracting and purifying hypolipidemic substance flavonoids, which can solve the problem of few active ingredients research, and achieve the effects of high extraction and purification efficiency, development and comprehensive utilization, and low cost.
Inactive Publication Date: 2014-04-16
ANHUI AGRICULTURAL UNIVERSITY +1
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Problems solved by technology
At present, there are many studies on the clinical and application effects of corn silk, but there are very few studies on its active ingredients
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[0015] 1) Obtaining corn silk
[0016] Picked from a corn planting farmland in Huatuo Town, Haozhou, Anhui (the corn plant grows to maturity, the corn silk is brown, and the water content is about 20%). If it loses free water, use it within a week; or bake it at 102°C for 10 hours to remove bound water and wait for long-term use.
[0017] 2) Pretreatment of resin
[0018] Soak fully with ethanol with a concentration of 50-60%, wash with ethanol until there is no white turbidity in the eluate, add an appropriate amount of water, rinse the alcohol with deionized water, and finally soak in 5% HCl solution for 3 hours, and wash with deionized water until the pH value is neutral, Then soak in 5% NaOH solution for 3h, and wash with deionized water until the pH value is neutral.
[0019] 3) Extraction process of flavonoids
[0020] Weigh 20g of corn silk with a balance, pour it into a 1L beaker, add 400mL of 60% ethanol solution by volume, that is, the ratio of material to liquid ...
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Abstract
The invention relates to a method for extraction and purification of corn silk general flavone, and a use of corn silk general flavone. The method adopts corn silk as a raw material and comprises the following steps of raw material snipping, extraction, condensation and purification. The method is characterized in that the extraction step comprising carrying out extraction by an ethanol solution with concentration of 60% at a temperature of 60 DEG C for 3 hours, wherein a solid-liquid ratio is 1: 20; and the purification step comprising purifying crude extract by a HPD-100 macroporous resin. The prepared corn silk general flavone is added into rabbit forage according to an addition ratio of 2% and has substantial effects of reducing blood fat, wherein P is less than or equal to 0.1. The method has simple operation steps and low costs, is suitable for practical production operation, and can develop integrated utilization of agricultural and sideline products and promote economic prosperity in the country. The method for extraction and purification of corn silk general flavone belongs to the field of corn silk general flavone research and lays the foundation for good development and utilization of corn silk and research of clinical curative effect basis of corn silk general flavone.
Description
technical field [0001] The invention relates to a process for extracting high-content medicinal components from corn silk, in particular to a production process for extracting and purifying hypolipidemic substance flavonoids from the style and stigma of corn silk of the genus Maize of the Poaceae family. Background technique [0002] Corn silk (Stigma maydis) is the style and stigma of the grass family Zea mays L.. It contains a variety of chemical components, such as volatile oils, saponins, alkaloids, total flavonoids, pentosan, allantoin, organic acids, etc. It is light in taste, flat in nature, has diuretic, heat-relieving, liver-pacifying, and gallbladder effects, and can be used to treat nephritis, gallstones, diabetes, jaundice, measles, chylous hematuria, and hemorrhagic hematuria. Modern pharmacological studies have shown that corn silk has significant diuretic, hypoglycemic, antihypertensive, antibacterial, immune-enhancing, anti-cancer and other effects. Moreove...
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