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Q. Explain the use of Benzoates acid?
Benzoic acid, sodium benzoate and the parahydroxy esters (parabens) are used as preservatives. Benzoic acid and its sodium salt, sodium benzoate, is the widely used preservative when compared to other preservatives. Sodium benzoate is more soluble in water, as such, it is the preferred form. The antimicrobial activity of benzoate is greater at the lower pH values. Its optimum pH range is between 2.5 to 4.0. Only the undissociated benzoic acid molecules are active. Due to this, the benzoic acid and its salts are effective in high acid food products.
what is the excretory organ of a lizard?
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A brief history of heart surgery : The dawn of Paediatric cardiac surgery was on August 26, 1938 when Robert, Gross, at the boston Children's Hospital, ligated ductus arteriosus
way of remember phylum protozoa
a) What are the advantages of human milk over cows' milk for feeding babies? b) Apart from the composition of the milk, what are the other advantages of breast- feeding?
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List three human activities which could cause the loss of a species. Human activities which threaten species with extinction are: (i) hunting of individual species, (ii) over-
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What are the symptoms and foods associated with campylobacteriosis? Campylobacteriosis incubation period: 2-5 days after ingestion of contaminated food. Symptoms: Diarrhoe
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