The steps to convert chaulmoogra oil into an injectable treatment are: 1. extraction II. saponification III. hydration IV. acidification V. esterification
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- Neutralization of residual disinfectant could be made by: a. Dilution if the concentration exponent is high b. Dilution if the concentration exponent is low c. Adding specific agent e.g. 3% Tween 80 d. Either a or c e. Either b or c1. Write briefly about Metabolism of drugs ( just 5 lines ) 2. Write briefly about Polyethylene glycol ( just 3 lines ) 3. The levigating agent , explain about its role in Suppositories manufacturing 4. Write in details about types of gel 5. Write in details about fusion method in ointment preparationMatch the most appropriate method of sterilisation for the following items. 10 mL vitamin solution 5 mL antibiotic solution Petri dishes 1 L of water 1 L of nutrient broth medium Talcum powder Charcoal powder [Choose ] [Choose ] Gamma radiation Autoclave Dry heat oven Filtration [Choose ] [Choose ] [Choose ] [Choose ] [Choose ]
- Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? What precautions should be taken to control laboratory contaminants? Of what advantage is the using a solid and a liquid medium?In sterilization, which among the supplies, instruments, glassware, etc. under the list of materials can be sterilized using either or both equipment below? List them down under the category: a) For “autoclaving” only, B) For Dry heat oven sterilization ,And C) Can be sterilized with either. Materials: 200-ml Erlenmeyer flask Stove 500-ml Erlenmeyer flask Autoclave 10-mL graduated cylinder Analytical balance 100-ml graduated cylinder pH meter Spatula Stirring rod 100-mL beaker Test tubes Distilled water Petri dish Stirring rod Alcohol lamp Glass dropperWith the aid of diagrams, explain the processes and principles of each of the following methods: (a) Gel filtration chromatography on Sephadex G50 b.SDS-PAGE
- Differentiate the following sterilization techniques: a. Autoclave b. Dry heat c. Sterile filtrationWhich of the following is an approved sterilant? a. chlorhexidine c. ethylene oxide b. betadyne d. ethyl alcoholWhat appropriate method should be used in controlling microbial growth in each of the following? 1. Chicken serum 2. Fresh goat milk 3. Nutrient broth 4. Paracetamol 5. Inoculation loob
- Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? Of what advantage is the using a solid and a liquid medium?Nitrate reduction to nitrite is indicated by the formation of a pink to red colour after addition of nitrate test reagent. However, if a culture does not produce a colour change several posibilies exist. Explain.Disinfectants and Sterilization Procedures Complete the table by putting (+) for growth of microorganisms or (–) absence of growth of microorganisms. Disinfectant Concentration Growth after time of exposure (minutes) Control 5 minutes 10 minutes 15 minutes Sodium hypochlorite 5% Sodium hypochlorite 0.05% Alcohol 70% Alcohol 40% Iodophor (Betadine) 10% solution Mouthwash Cetylpyridinium Chloride - 0.075% Sodium Fluoride - 0.05%