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55results about How to "Increase alkaloid content" patented technology

Extraction and enrichment method of fritillaria total alkaloids

ActiveCN102210803AIncreased total alkaloid contentIncrease alkaloid contentPlant ingredientsEnrichment methodsSugar
The invention relates to an extraction and enrichment method of fritillaria total alkaloids, comprising the following steps of: first, taking fritillaria, extracting with hydrochloric acid with the mass fraction of 0.5-2%, concentrating the extracting solution, centrifuging the concentrated solution, taking the supernatant; second, regulating the pH of the supernatant to 8-11, extracting with dichloromethane, collecting the dichloromethane, recovering the solvent until dried to obtain the total alkaloid crude extract; and third, dissolving the total alkaloid crude extract with hydrochloric acid with the mass fraction of 0.5-2%, regulating the pH to 8-11, taking the loading solution, enabling the loading solution to pass through HPD100 type or HPD722 type macroporous resin columns, washing with water until the eluent is colorless and represents negative shown by sugar detecting reaction, eluting with ethanol with the volume fraction of 90-95% until the eluent represents negative shown by alkaloid detecting reaction, collecting the ethanol eluent, and recovering the solvent until dried to obtain the total alkaloid extract. By the extraction and enrichment method of fritillaria total alkaloids provided by the invention, the purity of the obtained fritillaria total alkaloids is high.
Owner:BEIJING UNIV OF CHINESE MEDICINE

Rapid test method for adulteration of Chinese date honey

The invention discloses a rapid test method for adulteration of Chinese date honey, and relates to the technical field of ultraviolet spectrophotometry detection. The rapid test method uses absorbance of total alkaloids in the Chinese date honey as a measurement index and comprises the following steps: (1) preparation of a Chinese date honey sample solution : 1) extracting the total alkaloids from the Chinese date honey sample, and 2) dissolving; (2) preparation of a reference solution; (3) determination of absorbance: using an ultraviolet spectrophotometer to determine the absorbance of the Chinese date honey sample solution and the reference solution at the maximum absorption wavelength place of the Chinese date honey sample solution; (4) drawing of working curves and computing of regression equations; (5) computing of the adulteration amount of Chinese date honey sample: according to the regression equations in the step (4) and the absorbance of the Chinese date honey sample solution in the step (3), computing the natural Chinese date honey content in the Chinese date honey sample to obtain the adulteration amount of the Chinese date honey sample. The method is wide in applicability, simple to operate, cheap in the equipment price, low in the determination cost, and suitable for popularization and application.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Coptis teeta cultivation and fertilizing method

InactiveCN103798039AAvoid damageChanging nutritional statusFertilising methodsHorticultureGrowth plantVegetation
The invention relates to the technical field of plant cultivation, in particular to a coptis teeta cultivation and fertilizing method. In the coptis teeta cultivation and fertilizing method, soil preparation, field planting, fertilizing and the like are adopted, nitrogenous fertilizer, phosphatic fertilizer and micro element fertilizer are applied in the growth period of coptis teeta, and plant growth and rhizome alkaloid generation are facilitated. The method has the advantages of being capable of obviously improving the yield and achieving great economic benefits. Local advantageous forestland resources can be fully utilized to develop the forest undergrowth industry, and obvious ecological benefits and economic benefits can be embodied on the premise that forest plants are less damaged. Soil nutrition conditions are changed through manual fertilizing, and sufficient nutrients are provided for growth of the coptis teeta. Microelements are additionally applied to promote synthesis of alkaloid, a high biological yield is guaranteed, a high alkaloid content is acquired at the same time, and quality of the coptis teeta is improved; meanwhile, the method is adopted based on field forest undergrowth cultivation, a growth environment the same as that of field coptis teeta is achieved, and product geoherbalism is guaranteed.
Owner:XISHUANGBANNA TROPICAL BOTANICAL GARDEN CHINESE ACAD OF SCI +1

Preparation method and medical application of extract of monkshood reduced total alkali

The invention discloses a preparation method and medical application of an extract of monkshood reduced total alkali, which comprises the following steps of: adding inorganic alkali in a monkshood water extraction process, and keeping the pH value of liquid medicine to be 9-12 alkalinity in a decoction reflux process, so that aconitine is converted into a new compound during extraction; a combined process of a macroporous resin refining process, impurity elution with a diluted alcohol solution, impurity elution with an acid water solution and component elution with an acidic diluted alcohol solution is adopted, diluted alcohol is an ethanol solution with the concentration of 20% or below, the process has the unexpected effects that the production safety is improved, the cost is reduced, and the prepared extract is high in alkaloid content and safer in production. The invention is composed of a process of converting an aconitine structure into a new compound through reflux extraction of a strong alkali solution and a process of macroporous resin refining and diluted alcohol elution, the prepared main components are the new compound, the ecognin and the 15-hydroxyl ecognin, the content of the ecognin and the 15-hydroxyl ecognin accounts for more than 50% of the total alkali, and the invention is low in toxicity and strong in drug effect and is used for preparing drugs for treating inflammation pain.
Owner:NANJING TUOZHU PHARMA & TECH
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