Effective extract, extraction method and application of black wolfberry
An extraction method, the technology of black wolfberry, is applied in the direction of medical preparations containing active ingredients, organic chemistry, drug combination, etc., which can solve the problems of lack of extraction technology of black wolfberry, and achieve shortened extraction and separation time, less impurities, and high quality. excellent effect
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Embodiment 1
[0038] Example 1: The black fruit Lycium barbarum pigment medicine used for the treatment of hyperlipidemia is prepared by using the black fruit wolfberry dry extract or the proanthocyanidins extracted therefrom as effective substances.
[0039] Using single-factor comparison and orthogonal experiment method, the best extraction conditions for black fruit medlar pigment are as follows: 80% ethanol with pH 3.0 is used as extraction agent, extraction temperature is 50°C, extraction time is 3 hours, solid-liquid ratio is 1: 40; use X-5 macroporous adsorption resin to refine the pigment, the resin column diameter to height ratio 1:15, flow rate 3mL / min, pH 3.0, pigment solution concentration 1g / L are the best adsorption conditions, the pigment adsorption amount can be The wet resin volume reaches 0.03715g / mL; while 95% 7 alcohol is used as the eluent, the desorption effect is the best under the conditions of pH 2.0, flow rate 5mL / min, and 3 times the volume of the column bed, and t...
Embodiment 2
[0043] Embodiment 2: Adopting the dry extract of Lycium barbarum or the proanthocyanidins extracted therefrom are effective substances for scavenging DPPH free radicals, -OH and -O 2 All have the black fruit wolfberry pigment health care medicine with better treatment.
[0044] Ultrasonic-microwave co-extraction method was used to extract the pigment of Lycium barbarum, and the scavenging ability of Lycium barbarum pigment on DPPH free radical, hydroxyl radical-OH and superoxide anion free radical-O2 was detected by spectrophotometry; the results showed that Lycium barbarum black fruit The pigment solution has a good scavenging effect on DPPH free radicals, -OH and -O2.
[0045] The physical and chemical properties and stability of Lycium barbarum pigments were studied, and the results showed that Lycium barbarum pigments are easily soluble in water and belong to anthocyanin pigments; under acidic conditions, they have a certain tolerance to heat, and are resistant to visible ...
Embodiment 3
[0046] Embodiment 3: Taking the fruit of Lycium barbarum as a raw material and ethanol as an extractant, the influence of single factors such as ethanol concentration, extraction time, solid-liquid ratio, and extraction temperature on the extraction effect of Lycium barbarum pigment is investigated: on the basis of a single factor test Above, through the L16(45) orthogonal test, determine the best extraction process of the black fruit wolfberry pigment. The results show that the best extraction process of the black fruit wolfberry pigment is ethanol volume fraction 50%, extraction time 60min, solid-liquid ratio 1:12 , the extraction temperature is 50°C.
[0047] The antioxidant effect of Lycium barbarum black fruit extract was determined by phenanthroline-Fe2+ oxidation method and pyrogallol autoxidation method; the results showed that Lycium barbarum black fruit extract in different solvents had a certain scavenging effect on free radicals, The scavenging rate of hydroxyl rad...
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