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236 results about "Food and drug administration" patented technology

Stem cell freezing and storing medium and preparation method and freezing and storing method thereof

ActiveCN110050782AReduces freeze damageHigh activityDead animal preservationCvd riskExcipient
The invention discloses a stem cell freezing and storing medium and a preparation method and freezing and storing method thereof. The stem cell freezing and storing medium comprises, by weight, 3-10 parts of dimethyl sulfoxide, 2-7 parts of human serum albumin, 0.5-3 parts of mycose, 0.2-2 parts of dextran 40 and 2-6 parts of hetastarch. Cells can be frozen for a long time by the stem cell freezing and storing medium, freezing damage of the cells can be remarkably reduced, the resuscitated cells have a high degree of survival rate and adherent property, and freezing and storing effect of the cells is improved; meanwhile, the compositions of the stem cell freezing and storing medium are clear and are medical compendial injection-grade excipients without containing serum, the risk of contamination and allergen introduced by the use of heterogeneous serum is effectively prevented, the content of DMSO (dimethylsulfoxide) is low, the negative effect of the DMSO on the cells is lowered, highsecurity and good stability are achieved, requirements of CFDA (China food and drug administration) and FDA (food and drug administration) are met, and the stem cell freezing and storing medium can be directly used in human infusion and is suitable for clinical research and treatment.
Owner:广州赛隽生物科技有限公司

Technique for preparing verbascoside with function of curing chronic glomerulonephritis in glutinous rehmannia leaf

InactiveCN101121740ANon-toxic and safeConducive to extensive clinical applicationEsterified saccharide compoundsSugar derivativesAcute toxicity testingDigitalis
The invention belongs to the technological field of the Chinese medicine, particularly relating to an extraction and separation processes of the active ingredients with the active function of treating the chronic glomerulonephritis. The mullein indican is the active compound researched and developed for many years in our research institute; the mullein indican is extracted, separated and refined from the digitalis leaf and is an active compound with the function of treating the chronic glomerulonephritis. The invention is the research result of many years held and developed by the Chinese Medicine Research Department of the Chinese Medicine Research Institute of China and is supported by the special fund of the Central Institute of the National Science and Technology Department; now the compound has been approved by the State Food and Drug Administration Bureau as the novel drug and the mechanism research of the treatment of the chronic nephritis has been completed; the pre-clinical research work includes the main pharmacodynamic experiment, the production technology experiment (including the industrialized extraction and separation processes), the quality control standard, the experiment of the affecting factors of the quality, the experiment of the long-term stability, the acute toxicity of the rat, the experiment of the long-term toxicity, the teratogenic and mutagenic experiment, the general pharmacological experiment, the pharmacokinetics experiment, and so on. The digitalis leaf is mainly produced in the Huaiqing area of the Henan province, and is also grown wild and cultivated in the Shaanxi, Hebei and other places of China.
Owner:INST OF CHINESE MATERIA MEDICA CHINA ACAD OF CHINESE MEDICAL SCI

Ganoderma lucidum black tea processing technology

InactiveCN104286277AShape effectThe shape is tight and well-proportionedPre-extraction tea treatmentAdditive ingredientBlack tea
The invention belongs to the field of tea processing and mainly provides ganoderma lucidum black tea and a processing technology thereof. The problems in the prior art that ganoderma lucidum and tea activated ingredients cannot be effectively combined and absorbed by a human body, the taste and the color are poor, the soup is turbid, and the product quality is difficult to control when spore powder is used (China Food and Drug Administration stipulates that ganoderma lucidum spore powder cannot be used as a common food raw material). The raw materials comprise black tea fresh leaves and ganoderma lucidum granules. The processing technology comprises the procedures: cutting ganoderma lucidum into granules, putting on a steamer and steaming, selecting the black tea fresh leaves, withering the black tea fresh leaves, simultaneously rolling the ganoderma lucidum and the tea, fermenting, drying, extracting fragrance and examining quality. As the ganoderma lucidum black tea is prepared through the mixed fermentation of the ganoderma lucidum and the black tea, the interior quality of the tea is enriched, and the health-care function of the tea is improved. The tea can perform the functions of protecting the liver, nourishing the stomach, calming the nerves, pacifying the mind, brightening the eyes, reducing blood pressure, blood fat and blood sugar, improving body immunity, delaying aging and the like. Besides, the soup is clear, the taste is great, and the black tea variety in China is enriched.
Owner:詹聪 +1

Antifreeze polypeptide for protecting bacteria from low temperature freeze-thawing damage and preparation method thereof

The invention discloses an antifreeze polypeptide for protecting bacteria from low temperature freeze-thawing damage and a preparation method thereof. The preparation method is characterized by using fish-derived collagens as raw materials, adopting alkaline protease to carry out enzymolysis on the fish-derived collagens and carrying out separation and purification and freeze drying, thus obtaining the antifreeze polypeptide for protecting bacteria from low temperature freeze-thawing damage. The amino acid complete sequence of the antifreeze polypeptide is Gly-Gln-Arg-Gly-Gly-Arg-Gly-Leu-Pro-Gly-Glu-Arg-Gly-Arg-Val-Gly-Pro-Ser-Gly-Pro-Ala-Gly-Ala-Arg-Gly-Ala-Asp-Gly. By adopting the antifreeze polypeptide and the preparation method, the research ideas and methods of antifreeze proteins (polypeptides) existing at home and abroad are broken through, limitation of the quantity of the antifreeze proteins purified form natural organisms and considerations of international FDA (food and drug administration) for security of transgenic antifreeze proteins in food application are overcome, an efficient antifreeze polypeptide based on food sources is obtained, and a theoretical foundation is laid for developing the antifreeze polypeptide based on food sources and exploring extensive application of the antifreeze polypeptide to food and medicines.
Owner:FUZHOU UNIV
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