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46 results about "Molecular classification" patented technology

Molecular taxonomy is the classification of organisms on the basis of the distribution and composition of chemical substances in them.

Reagent kit for quantitatively assessing long-term recurrence risks of breast cancer

The invention relates to the functional genomic and gene expression detection technology and the analysis technology, and discloses a reagent kit for quantitatively assessing long-term recurrence risks of breast cancer. Particularly, a type of genes capable of being used for breast cancer metastasis and prognostic molecular classification is screened within a human functional genome expression profile range, the detection technology is created, and the reagent kit is prepared and applied to breast cancer metastasis and prognostic assessment for a patient. The reagent kit for quantitatively assessing long-term recurrence risks of breast cancer comprises 21 pairs of primers, 21 specific taqman fluorescent probes, 10XRT-PCR (reverse transcription-polymerase chain reaction) buffer solution, 2.5mM of dNTP (diethyl-nitrophenyl thiophosphate) mixed liquor, reverse transcriptase, DNA (deoxyribose nucleic acid) polymerase, 10XPCR buffer solution and RNA (ribonucleic acid) enzyme inhibitor. The reverse transcription PCR technology is combined with the taqman fluorescent quantitative PCR technology, reverse transcription primers, real-time PCR primers and the taqman fluorescent probes are self-designed and optimized, reverse transcription PCR reagent and taqman fluorescent quantitative PCR reagent are integrated to prepare the detection reagent kit, operation is simple and fast, detection results are more stable, and detection cost is lower.
Owner:苏州科贝生物技术有限公司

Preparation method of raw powder of each gram of bacillus subtillis with five hundred billion of live germs

The invention discloses a preparation method of raw powder of each gram of bacillus subtillis with five hundred billion of live germs, which comprises the following steps: (A) the screening of a Bs strain: collecting a sample from soil and water; weighing the sample on a sterile and ultraclean table and then loading the sample in a small triangular flask; adding sterile water into the triangular flask and standing still the sample; (B) the confirmation of the Bs strain: carrying out molecular classification according to a 16S rDNA sequence and together testing effective basic groups of the 16S rDNAs of the strain and identifying the strain; (C) a culture medium of the Bs: utilizing a single factor experiment to select a factor from numerous carbon sources, nitrogen sources and trace element factors firstly by adopting a response surface experiment designed by Box-Behken and using the germ number as a screening index; (D) using a high-density liquid feed-batch fermentation technology for improving the quantity of fermentation organisms so as to use the culture medium of a response surface method to carry out batch fermentation by using a fermentation early phase, an exponential phase, a stationary phase OD, dissolved oxygen, pH and germ numbers as indexes; (E) carrying out a germ extraction and recovery process; and (F) detecting the number of live germs. The number of the live germs in raw medicine prepared by the process of the bacillus subtillis reaches five hundred billion/gram.
Owner:WUHAN KERNEL BIO-TECH CO LTD

Preparation method of raw powder of each gram of bacillus subtillis with five hundred billion of live germs

The invention discloses a preparation method of raw powder of each gram of bacillus subtillis with five hundred billion of live germs, which comprises the following steps: (A) the screening of a Bs strain: collecting a sample from soil and water; weighing the sample on a sterile and ultraclean table and then loading the sample in a small triangular flask; adding sterile water into the triangular flask and standing still the sample; (B) the confirmation of the Bs strain: carrying out molecular classification according to a 16S rDNA sequence and together testing effective basic groups of the 16S rDNAs of the strain and identifying the strain; (C) a culture medium of the Bs: utilizing a single factor experiment to select a factor from numerous carbon sources, nitrogen sources and trace element factors firstly by adopting a response surface experiment designed by Box-Behken and using the germ number as a screening index; (D) using a high-density liquid feed-batch fermentation technology for improving the quantity of fermentation organisms so as to use the culture medium of a response surface method to carry out batch fermentation by using a fermentation early phase, an exponential phase, a stationary phase OD, dissolved oxygen, pH and germ numbers as indexes; (E) carrying out a germ extraction and recovery process; and (F) detecting the number of live germs. The number of the live germs in raw medicine prepared by the process of the bacillus subtillis reaches five hundred billion / gram.
Owner:WUHAN KERNEL BIO-TECH CO LTD
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