Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Food-borne Clostridium
Clostridium botulinum and Cl. perfringens, the two members of the group have been implicated in food-borne illnesses. C. botulinum causes classical food-borne botulism due to ingestion of preformed toxin in food.
Epidemiology: Clostridia grow anaerobically in rewarmed food dishes produce toxin. These are gram-positive, anaerobic sporulating, catalase negative rod shaped organisms.
Clinical features: In case of poisoning due to Cl. botulinum, incubation period var ies from 24-9 6 ho urs. Toxin absorbe d fro m gut blo cks acetylcho line at neuromuscular junction. Diplopia, dysphagia, dysphonia and respiratory involvement occur. Mortality rate is high.Incubation period in case of Cl. perfringens ranges from 8-16 hours. Enterotoxin produced during sporulation in gut causes hyper secretion. Sudden onset of profuse diarrhoea occurs that may occasionally be accompanied with vomiting. Recovery takes in 1- 4 days.
Diagnosis: Robertson cooked meat medium is used for enrichment, however, other specific enrichment media are also available. The horse blood agar and anaerobic egg yolk agar are the recommended plating media for isolation of Cl. botulinum. The colonies are raised or flat, smooth or rough and commonly show some spreading with irregular edge. The selective media for isolation of Cl. Perfringens are tryptose sulphate cycloserine (TCS) agar, sulphate-polymyxin-sulphadiazine (SPS) agar, Shahid Ferguson perfringens (SFP) agar and neomycin blood agar, etc. PCR based detection of Cl. perfringens targeting alpha gene or epsilon toxin has been used.
Q. What is the special route that lipids follow during digestion? What are chylomicrons? Triglycerides emulsified by the bile within micelles suffer the action of lipases that
Making leaf collections Collect young leaves of as many varieties of plants as possible. Place various layers of news- paper or blotting paper on a firm, smooth board. Next org
Define Precautions for Estimation of Cholesterol Using Zlatkis Method 1. Use aldehyde free glacial acetic acid. 2. Use only glacial acetic for making up and adjusting the vo
Illustrate about the term- Hypnagogic hallucinations Hypnagogic hallucinations (Greek, 'hypnos' meaning "sleep," and 'gogic' meaning "enter into") are episodes of auditory, vi
What direct or indirect effect is acid rain thought to have on mama''s and forest and buildings
Determine the appearance of a plant cell when water is plentiful? When water is plentiful, the central vacuole expands. The other organelles are pushed against the plasma me
What resources are competed for by (a) animals, (b) plants? (a) Animals compete for food, mates and shelter. (b) Plants compete for light, water and minerals.
Compare and contrast the effect of a deletion in the operator of the lactose operon with one in the operator of the histidine operon.
If a cow develops a preference for eating white four o'clock flowers and ignoring pink and red four o'clock flowers, what type of selection is being demonstrated? Would the cow eve
H y p o ma g n e s e m i a It is also known as grass staggers or lactation or grass tetany and results in clonic and tonic muscular spasms and convulsions. E
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd