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68 results about "Forsythoside A" patented technology

Method for determining contents of seven components in lonicera and forsythia powder by adopting dual-wavelength quantitative analysis of multi-components by single marker

The invention discloses a method for determining the contents of seven components in lonicera and forsythia powder by adopting dual-wavelength quantitative analysis of multi-components by a single marker, which comprises the following steps of: respectively taking neochlorogenic acid, chlorogenic acid, forsythiaside A, isochlorogenic acid A, isochlorogenic acid C, forsythin and arctiin as reference substances and forsythiaside A as an internal reference substance, calculating the relative correction factors of arctiin and forsythin at 237 nm, calculating the relative correction factors of neochlorogenic acid, chlorogenic acid, isochlorogenic acid A and isochlorogenic acid C at 327 nm, taking a forsythiaside A reference substance solution and a test solution, injecting the solutions into a high performance liquid chromatograph, and calculating the contents of seven components including forsythiaside A, forsythin, arctiin, neochlorogenic acid, chlorogenic acid, isochlorogenic acid A and isochlorogenic acid C in the lonicera and forsythia powder according to the relative correction factors. According to the invention, the same test solution is adopted to determine the contents of seven components under two absorption wavelengths, so that the detection efficiency is improved, and the detection cost is reduced.
Owner:SHANDONG ACAD OF CHINESE MEDICINE

Livestock and poultry feed additives and application thereof

The invention discloses livestock and poultry feed additives and application thereof. As for one of the feed additives, dried fructus forsythia fruits are taken as raw materials, a fructus forsythia extract is obtained through alcohol extraction, main active components in the fructus forsythia extract comprise phillygenin, phillyrin, forsythialan A and forsythoside A, and the other feed additive is 25-hydroxyl vitamin D3. According to two methods for improving reproductive performance of multiparous sows and improving breast milk components through the additives at the latter half of gestation, by using the fructus forsythia extract, the newborn litter weight of lactating sows can be increased significantly, the mortality rate of newborn piglets is decreased, and the content of milk fat and milk proteins in colostrums is increased; and by using the 25-hydroxyl vitamin D3, the average newborn piglet weight of the lactating sows can be increased significantly, and the content of the milkfat and the milk proteins in the colostrums is increased. Effective means are provided for improving the immunity function of the sows and effectively resisting stress caused by metabolic enhancementduring gestation, parturition and lactation, and thus the development of sow breeding industry is promoted.
Owner:CHINA AGRI UNIV

Establishhment method for fructus forsythiae medicine fingerprint

The invention belongs to the technical field of medicine analysis and specifically relates to an establishment method for a fructus forsythiae medicine fingerprint. The method specifically is realizedby the following steps of preparing a reference substance solution, taking appropriate amount of forsythin, forsythoside A, isoforsythiaside, rutin and forsythingenin reference substances, and preparing the reference substances into the reference substance solution; preparing a test sample solution, weighing fructus forsythiae medicine powder, carrying out heating reflux extraction, taking subsequent filtrate, carrying out filtering through utilization of filter membrane, taking the subsequent filtrate as a sample solution, measuring the sample solution and a puerarin water solution, and carrying out mixing uniformly to obtain the test sample solution; and carrying out detection through adoption of a high performance liquid chromatography and establishing the fingerprint. According to themethod, high performance liquid chromatography detection is carried out on the fructus forsythiae medicine through adoption of different gradient elution, a separation effect is good; through external addition of an internal standard, the established fingerprint has a semiquantitative function, so change of components among samples can be effectively expressed, and quality of the samples can be judged relatively precisely; and quality monitoring can be carried out on the raw material fructus forsythiae medicine relatively comprehensively.
Owner:SHANDONG ACAD OF CHINESE MEDICINE

Application of forsythia flower yellow pigment in preparing anti-oxidative stress injury drug

The invention provides an application of forsythia flower yellow pigment in preparing an anti-oxidative stress injury drug. The preparation step of the yellow pigment is as follows: adding dried forsythia flower powder into 95% ethanol according to a solid-liquid ratio of 1:100, performing water bath at 50 DEG C, and performing extraction by a hot reflux method; and performing suction filtration separation, repeating extraction twice, collecting the extractive liquid, performing rotary evaporation concentration, carrying out freeze drying, and collecting dry powder. The yellow pigment contains: rutin, forsythoside A, rosin, forsythin and the like. The yellow pigment can effectively eliminate ROS free radicals in caenorhabditis elegans body by up-regulating the expression of DAF-16 and SKN-1 target genes, increase the activity of antioxidant enzymes in elegans body, reduce the free radical content in the elegans body and weaken the oxidative stress damage in the elegans body by juglone,and can significantly prolong the lifespan of wild-type elegans N2 and daf-16 mutant elegans under oxidative stress, thereby increasing the resistance of elegans to oxidative stress. The yellow pigment can also be used in the preparation of functional foods resistant to oxidative stress damage.
Owner:SHANXI UNIV
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