Such as: esters of hydroxybenzoic acid, quaternary ammonium substances and sorbic acid are widely Employed in pharmaceutical and beauty preparations. Other preservatives that are made use of include phenol, chlorhexidine, benzoic acid and benzyl Liquor.Doc the results of microbial enumeration, like the number of colonies observed on Just about ever

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COD is the most popular choice test to BOD for setting up the focus of organic issue in wastewater samples.The likely distinction between the reference electrode and also the pH electrode is utilised to find out the pH value of the water sample.The Particular devices for cellular and non-destructive authenticity checks of gold, precious metals and

If greater than five organisms pointed out in Table-I then conduct the Growth Promotion test with minimum amount five organisms together with minimum a single fungus.It is crucial to notice that colony qualities could vary amid diverse bacterial species and strains, and extra tests are often necessary for correct identification.eleven. Test strains

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