What are the methods for identifying drugs and microorganisms?
The method for identifying the microorganisms of drugs was as follows: 1. * * Microorganism Pure Cultivation Separation Technique **: - * * Plate coating method **: Add a small amount of sample to the center of the plate, soak the glass triangular coating rod in alcohol, burn the coating rod with alcohol on the flame and let it cool down. The sterile coating rod spreads the sample evenly on the surface of the agar-based medium, and cultivates it under appropriate conditions. - * * Plate marking method **: Including diagonal line method, curve method, square method, radiation method, four-square method, etc. For example, the curve method was to continuously draw lines on the plate culture medium with the ring of inoculums with samples; the oblique line method was to use the ring of inoculums to pick a ring of bacteria suspension in an aseptically manner, and first draw 3 - 4 parallel lines on one side of the plate culture medium, then turn the petri dish at an angle of 70 °, and burn the residue on the ring of inoculums. After cooling down, draw a second parallel line through the first parallel line, and then use the same method to draw a third parallel line and a fourth parallel line through the second parallel line. - * * Plate pouring method **: Dilute the starting sample 10 times consecutively, then pour the sample with high diluted times into a sterile petri dish and mix it evenly with the dissolved agar-based medium cooled to an appropriate temperature. After cultivation, obtain a single colony. The colony on the surface of the medium is round, and the colony inside is bean-shaped or lens-shaped. - * * Dilution-shaking tube method **: It is suitable for the pure cultivation and separation of anaerobia. Heat the sterile agar-culture medium test tube to melt the agar-culture and then cool it at about 50 ° C. Add the strain to be separated after the gradual thinning into the test tube, shake it up and condense it. Then pour a layer of mixture of sterilized liquid wax and solid wax on the surface of the agar-culture column. After cultivation, the colony will form in the middle of the agar-culture column. - * * Liquid medium separation method **: It is suitable for microorganisms that cannot grow on solid medium. It is continuously diluted in many parallel culture vessels of the same degree. In a test tube containing only one bacteria, most (generally more than 95%) do not grow, so as to obtain pure culture. - * * Single Cell (Spore) Separation Method ** - * * Selection of medium separation method **. 2. * * Gram stain **: This is a staining method used to identify bacteria. 3. * * Principles of Microorganism Identification **: Follow certain principles to accurately identify microorganisms. 4. * * Commonly Used Microorganism Identification Techniques **: - * * Detection of contamination **: - * * Spreading Method **: Spread the test solution in a series of diluted solutions onto the prepared Agar Plate. - * * Thin membrane filter method **: The test solution is filtered with a thin membrane, and the filter membrane is taken out and pasted on an agar-plate or other medium. It is used to determine the number of bacteria, mold, and yeast in the drug per unit weight (volume or area). - * * Control bacteria test **: It is used to determine whether the faecal contamination indicator bacteria and some specific bacteria in the drug per unit weight (volume or area), such as escheria, salmonella, staph. aureus, p. aerogonosa, clostridia, candida, and mites, are not detected in the specified amount of samples or do not exceed a certain limit. Read more exciting novels for free
What are the methods for the management of microorganisms?
What are the methods for the management of microorganisms?
There were several methods to control the microorganisms: 1. [Single spore separation method: Single spores germinate to form a fungus to obtain a pure strain.] 2. ** tissue separation method **: Use the fungus or flesh tissue to separate and cultivate to obtain pure bacteria. 3. ** High-temperature mutation method **: Mutate the strain under high-temperature conditions to obtain a strain with excellent characteristics. 4. ** Radiation Mutation Method **: Use rays to mutate the strain to obtain a strain with excellent characteristics. 5. Protoplasts fusion method: The protoplasts of different strains are fused together to form a new hybrid strain. This method could combine the excellent traits of different strains, but it required high technical requirements and was difficult to operate. The operation steps included separating the protoplasts of different strains, fusing the protoplasts, and selecting the strains that grew well and had typical morphological characteristics for rejuvenation. Before the rejuvenation of the strain, the purification and identification of the strain should be done well. During the rejuvenation process, the cultivation conditions should be strictly controlled to ensure the healthy growth of the strain. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the methods of studying microorganisms?
Currently, the known methods for the study of microorganisms were the " innovative dilute method ", which was created by introducing the classical dilute method. This method could be used to measure the feeding rate of the difficult-to-label nitrating microorganisms in the ocean. However, there might be other methods of studying the microorganisms 'neutrons, and this was the only one mentioned in the current reference materials. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Explanation of Biological Detection Methods in Microorganisms
Biological detection was a method used to study the absorption, distribution, secretion, and metabolism of protein or protein drugs in animals or humans. Since protein and peptide-based drugs were mostly substances with biological activity, and the biological activity was not only determined by the primary structure of the drug, but also closely related to the secondary and tertiary structures, the biological detection method was a unique and necessary method to study the dynamics of this kind of drug. It had two purposes. One was to directly measure the concentration of drugs in body fluids, and the other was to identify the biological activity of the labeled drugs. This method could be divided into two categories: in body analysis and in body tissue (cell) analysis. There were also methods established according to the different biological activities of various protein and peptide-based methods.(For example, the in rabbit experiment of mobilizing the IL8 to mobilize a large number of neutrons from the bone was established based on the nature of the IL8.) The analysis of isolated tissues (cells), such as the method of stimulating the growth of chicken Dorsal Root Ganglion by nerve growth factor and the method of isolated rat uterus by pitocin, etc. With the development of molecular biology, cell culture has become a common method. The specific operation is based on the different interaction mechanism between protein and cell, such as the method of cell reproduction, the method of inhibition of reproduction, the method of reducing cell damage, etc. These methods mostly take the increase or decrease of cell number as the dose-effect index. The counting methods include direct counting method and indirect counting method. In addition, there were also detection methods based on the indirect interaction between protein and cells, such as the antibody-induced method combined with the immune detection, and the element-induced decomposition method combined with the reaction of the protein and the cell. However, there were some shortcomings in the bio-detection method, such as the inability to determine the small active mutants, the inability to trace the dynamic changes in the body, the interference of the sample by the serum's intrinsic substances, the reduction of sensitivity due to the threshold amount of cell factors required to start the biological process, and the long-term cultivation of the dependent cell strain that was easy to mutate and affect the detection of the detection. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the methods and processes for identifying the reactions of vitamins C?
The identification method and process of the reaction of the vitamins C were as follows: 1. ** Reaction with Silver Nitrate **: The dienol group in the molecular structure of the retinol C has a strong reduction property and can be oxided by silver nitrates. Black silver will be produced during the reaction. 2. ** Reaction with 2,6 -Dichloro Indophenol **: This is a reaction method to identify vitamins C. The specific reaction process is based on the reduction of vitamins C and the oxidoreduction reaction of 2,6 -Dichloro Indophenol. 3. ** Reaction with other oxidisers **: Vitamin C can be oxided by oxidisers such as methlene blue, potassium Permanganate, basic copper tartarate, and phosphorous acid. These oxidisers will fade during the reaction process. 4. ** Reaction with sugar properties **: In the presence of tricholoric acid or sulfuric acid, it will undergo a water decomposition reaction. This characteristic can also be used to identify the existence of vitamins. 5. ** Ultraviolet spectrum method **: It uses the optical properties such as the absorption at a specific wave length to identify it. However, this method requires specific equipment to determine it. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the methods of injecting drugs into the abdomen?
The drug injected into the abdominal cavity was absorbed into the blood circulation through the superior mesentery vein, hepatic portal vein, liver, hepatic vein, inferior cava, right atrium, and right atrium. The circulation of the drug depended on the route of injection. Generally speaking, drugs that were injected through the vein would spread through the system and then enter the lung circulation, while drugs that were injected through the muscle or the skin would first enter the local blood vessel system, then enter the system circulation, and finally enter the lung circulation. The drug injected into the vein was directly injected into the vein, and then quickly distributed to the tissues and organs of the whole body, and then into the lung circulation. The drug injected into the muscle was first absorbed in the muscle tissue, then into the local blood vessel system, and gradually distributed to the tissues and organs of the whole body, and finally into the lung circulation. The drug injected into the skin was absorbed in the subcuticular tissue, then into the blood vessel system, and gradually distributed to the tissues and organs of the whole body, and finally into the lung circulation. Tail vein injection was an intravenous injection, and its circulation route was directly into the blood circulation. Please note that the appropriate injection method should be selected according to the doctor's advice to ensure that the drug works safely and effectively. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the methods to identify inferior drugs?
Inferior drugs can be identified from the following aspects: 1. ** Drug ingredient content **: If the drug ingredient content does not meet the national drug standards, it is a substandard drug. 2. ** Drug contamination **: The contaminated drugs are inferior drugs. 3. ** Identification of Validity Period **: A drug that does not indicate or change the validity period is a substandard drug. 4. ** Identification of product batch number **: A drug that does not indicate or change the product batch number is inferior. 5. ** Whether the medicine has expired **: A medicine that has expired is considered inferior. 6. ** Condition of the chemicals **: Pharmaceuticals that add preserving agents and auxiliary materials without authorization are considered inferior. 7. ** Other conditions **: Other drugs that do not meet the drug standards are also inferior drugs. In addition, consumers can also identify inferior drugs from the following aspects: 1. ** approval number **: China's drug approval number has a unified format requirement, such as "Chinese medicine approval +H(or Z, S, or J)+8 digits"(H represents chemical drugs, Z represents traditional Chinese medicine, S represents biological products, and J represents imported and domestically packaged drugs). The approval number of a pure imported drug is "registration number plus one letter and eight digits". If the approval number format is wrong, it may be a substandard drug. 2. ** Production batch number and expiration date **: The qualified drug packaging has the laser-printed product batch number, production date, and expiration date. All three are indispensable, and the printed batch number does not penetrate the carton. If it does not meet the requirements, it may be a substandard drug. 3. ** Drug packaging and instruction manual **: The packaging of qualified drugs has been approved by the Drug Administration Department. The appearance color is pure, the printing is exquisite, and the handwriting is clear. The quality of the outer packaging of fake drugs is poor. The printing of the font and pattern is rough, the color is stiff, and the anti-counterfeit mark is blurred. The paper of the qualified drug instruction manual was good, the printing and layout were uniform, the font was clear, and the content was accurate and complete. The paper quality of the inferior drug instruction manual was poor, the handwriting was blurred, the content was incomplete, and the arrangement was wrong. 4. ** Appearance of the drug **: If it is a tablet or a capsule, there will be deliquescence, sticking, and splitting; if it is an oral solution, there will be a peculiar smell and mold; if it is an injection, the drug with color change and turbid phenomenon may be inferior. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the methods of using anticoccidial drugs?
The usage of anticoccidial drugs was as follows: 1. ** Single use **: Use only one drug from the first day of age until the drug withdrawal period before marketing. Its advantage was that it was easy to operate and had a low risk of feed mixing errors, but its disadvantage was that long-term use could easily cause coccidia to develop drug resistance. 2. ** Shuttle medication **: Use different anti-coccidiosis drugs at different growth stages of broiler chickens. For example, in the chick stage, antibiotics (such as monensin and salinomycins) were used, and in the big chicken stage, chemical synthetic anticoccidial drugs (such as nicarbastine and diclazuril) were used. This method could effectively kill most coccidiosis, reduce oocystic discharge and chicken house pollution, but the same drug could not be used continuously in batches of broiler chickens, otherwise coccidiosis would easily develop drug resistance. 3. ** Rotation of medication **: Use one anticoccidial drug for several months (usually after feeding 2 - 3 batches of broiler chickens) and then switch to another anticoccidial drug. It was important to note that the drugs that were replaced could not be of the same type in terms of chemical composition, so as to avoid cross-resistance. Usually, after the use of antibiotics against coccidiosis, they were replaced with synthetic anticoccidiosis drugs. 4. ** Comprehensive Medication **: Combination of shuttle medication and rotation medication. One drug was added to the broiler in the early stage of growth, and another drug was added in the later stage. After feeding 2 - 3 batches of broiler chickens, the other two drugs with different modes of action were used in the subsequent 2 - 3 batches of broiler chickens. It was difficult for coccidiosis to develop drug resistance in this method, but it required a variety of anticoccidiosis drugs. 5. ** Mixed medication **: Use two or more anticoccidial drugs at the same time in a breeding cycle to delay the production of drug-resistant strains by using the synergy between the drugs. However, the actual effect depended on whether there was a synergy between the drugs and whether the coccidia had developed resistance to one of the drugs. If there was no synergy between the drugs or the coccidia had developed resistance to one of the drugs, the effect might not be significant and the cost would increase. 6. ** Medication strategies for different situations **: - For small intestine coccidiosis that develops slowly and occasionally see a few piles of "rotten meat" feces (net or cage chickens) in a large group, you can observe first, and then administer the medicine when there is obvious development momentum. However, the medicine should be administered immediately after the infection of cecal coccidiosis is found. - In chicken houses with a more serious history of coccidiosis, the 4 - 2 - 3 principle of administration (give the medicine for 4 days, stop for 2 days, and then give it for 3 days) can be used to avoid incomplete coccidiosis treatment and relapse. - For the first time, the dosage of the sulfamide drugs could be increased by 1/5 on the basis of the treatment dosage to avoid long-term administration of small doses and prevent the eggs from being killed quickly in a short period of time and the development of drug resistance. - For preventive administration, coccidia powder, diclazuril, toltrazuril, etc. could be used. For treatment, the combination of sulfur, coccidia powder, and compound preparations containing sulfaquin oxaline or sulfapromazuron could be reused. They could also use the different mechanisms of action of drugs (such as ampraline and toltrazuril) to play a "combination fist" to expand the range of anti-killing eggs. - During the outbreak of coccidiosis, it is forbidden to use the absorption drugs (such as activated carbon, smectite, etc.) to prevent the intestine from drying up, reduce the intestine wriggling, and delay the secretion of toxins and toxic substances from the body. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the categories and methods of studying drugs?
Pharmacy was a subject that studied drugs. - In terms of discipline system, there were two major discipline systems, namely pharmacy and Chinese medicine. The first-level discipline of pharmacy consisted of five second-level disciplines, namely medicinal chemistry, pharmacology, pharmaceutical analysis, pharmaceutics, and drug design, and 21 research directions. The first-level discipline of Chinese medicine consisted of five disciplines, namely medicinal chemistry, pharmacology, analysis, pharmaceutics, and clinical Chinese medicine, and 14 research directions. Research methods: - In pharmaceutical research, it was widely involved in drug research and development, manufacturing, quality control, pharmacology, toxicity, drug metabolism, pharmacology, and drug therapy. For example, in the field of pharmaceutical analysis, modern analytical theories and methods would be used to study the quality of traditional Chinese medicine; in the field of drug research and development, the research and development of innovative drugs and improved new drugs would be carried out in accordance with the latest national research and development regulations and guidelines; in pharmaceutical research, the theory of drug formulation, production technology, quality control, and rational application would be studied. These different research directions would use a variety of experimental techniques, data analysis methods, and follow relevant scientific research standards to carry out comprehensive research on drugs. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Study on the Methods of High-efficient Selection and Characteristic Evaluation of Function Microorganisms
The efficient screening and characteristic evaluation methods of functional microorganisms included the following aspects: ###1. An efficient screening method 1. ** Analysis of background information ** - First of all, the site investigation report had to be analyzed to determine the type, content, and distribution information of the soil target contamination. This was the basis of the screening work. A clear target would help to screen out suitable functional microorganisms in the future. 2. ** Sampler ** - After choosing the appropriate location, he took a sample of the representative soil. After the samples were collected, they were placed in clean kraft paper or plastic bags, tied up and marked. At the same time, information such as the time, location, and environmental conditions of the samples were recorded for subsequent investigation. 3. ** Transportation and Storage of the samples ** - The samples were transported and stored at 4°C for no more than 7 days to ensure that the activity and characteristics of the microorganisms in the samples were not affected as much as possible. 4. ** preparation of bacteria suspension ** - Take 10g of soil sample into a 250mL conical flask, add 90mL of Deionized Water, and shake it in a constant temperature incubator (temperature 30°C, rotation speed 180r·min - 1) for 24 hours to make a bacteria suspension. After standing still, take the supernate as the separation and screening sample. 5. ** Multiplication Cultivation (Enrichment Cultivation)** - Take 10ml of the supernate, add 90ml of the mineral salt medium (121°C for 20min) and different concentration of the target pesticide contamination, and cultivate it in a shaking table at 30°C and 130r·min - 1. Under the same conditions, they would transfer the target microorganisms regularly to increase the number of target microorganisms. 6. ** Cultivation Separation ** - The microorganisms can be separated and purified by a diluted spread plate method, a diluted mixed plate method, or a plate streaking separation method, and the operation can be repeated until pure strains are obtained. 7. ** Selection ** - Dilute and spread on the solid medium of the organic salt, and cultivate in the incubator at 30°C for 2 - 3 days. According to the difference of the bacteria community, pick the single colony growing on the plate and inoculate it into the medium of the organic salt. Investigate the organic matter degrading effect, and select the strain with the ability to degrade the organic matter for further separation and purification, and finally obtain the high-efficiency functional strain. 8. ** Effect Test ** - After 7 days (with a deviation of 3 days allowed), samples will be taken to test the effect of the target microorganisms. If there is a repair effect, the experimental group with the best repair effect will be selected as the screening bacteria solution to complete the first round of screening of microorganisms. If there is no repair effect, samples will be taken again after 7 days (with a deviation of 3 days allowed). Generally, if there is still no repair effect after 30 days, soil samples need to be collected again. 9. ** Safety evaluation ** - This was an indispensable part of the screening process to ensure the safety of the screened functional microorganisms in application. ###2. Characteristic Evaluation Method 1. ** Evaluation of Function ** - Different functional microorganisms had different functional characteristics. For example, B. subtils could activate the soil to dissolve phosphorus and potassium, improve the soil, promote the root of crops, improve the absorption and utilization of nutrients, and enhance the immunity and disease resistance of crops; B. jelly-like had strong resistance to stress, strong environmental adaptability, efficient phosphorus dissolving function, and could improve soil hardening; B. licheniformis had the functions of dissolving phosphorus and potassium, secreting functional zymes, and producing active substances against pathogenic bacteria. The characteristics of the microorganisms were evaluated by testing whether they had these indicators related to their functions. - For example, the characteristics of T. harziana could be evaluated by its ability to control various soil-borne diseases such as phytophthora, sheath eyespot, and damping-off, as well as its ability to secrete gibberellins and other substances that promoted crop growth; Paecilomycopsis lilacinus could be evaluated by its functions of controlling plant root-knot nematodes, promoting plant growth, secreting various functional membranes, and degrading residual pesticide. 2. ** Evaluation of environmental adaptability ** - Observe the growth and reproduction of microorganisms under different environmental conditions, such as the performance of microorganisms when factors such as temperature, pH value, and nutrient concentration change. For example, the ability of Pseudomonads to rapidly grow and reproduce under low temperature conditions reflected its adaptability to low temperature environments. This was also an important aspect of evaluating its characteristics. 3. ** Growth and reproduction characteristics evaluation ** - It considered factors such as the reproduction speed and growth cycle of microorganisms. For example, the rapid reproduction rate of B. megatherum was an important factor to consider when evaluating whether it was a high-efficiency functional microorganisms. At the same time, the growth cycle would also affect the effect in practical applications. For example, in an application scenario that required a rapid effect, microorganisms with a short growth cycle might have an advantage. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>