Such as: esters of hydroxybenzoic acid, quaternary ammonium substances and sorbic acid are widely Employed in pharmaceutical and beauty preparations. Other preservatives which are employed consist of phenol, chlorhexidine, benzoic acid and benzyl alcohol.Doc the results of microbial enumeration, including the number of colonies observed on Just abo

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A published high-quality assurance technique includes the next in-approach checks that happen to be utilized, as is acceptable, to distinct CSPs: precision and precision of measuring and weighing; the requirement for sterility; methods of sterilization and purification; Secure limits and ranges for toughness of elements, bacterial endotoxins, parti

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When growth is inhibited then raise the usage of diluents or membrane filtration or combination of all   previously mentioned.sangat perlu dilakukan karena setiap bets media maupun setiap merek media yang berbeda terdapat perbedaan jumlah pertumbuhan mikroba, karena hal tersebut untuk menentukan media yang cocok maupun media yang masih layak paka