Preserving cosmetics – is nature winning?
Ensuring cosmetics and personal care products are safe and do not spoil is an increasing challenge for formulators faced with a decreasing armoury of preservatives and ever more resilient microbes. Susan Birks reports from Pharmig’s recent meeting on the issue
Wipe study measures particle shedding
A recent study into particle generation from non-cleanroom and cleanroom wipes demonstrated that the wipes made from the appropriate materials, prepared under cleanroom conditions and sterilised are suitable for the cleanest conditions (particularly ISO Class 5 environments), whereas wipes prepared under less stringent conditions and marketed for a lower class of cleanroom should be restricted to such areas due to the high numbers of particles generated.
Safe selection of biocides
Consideration of the antimicrobial efficacy of different biocides is an important basis on which to choose an effective disinfectant regime appropriate to the hygiene requirements in a production plant. Alcohols act rapidly and effectively against bacteria, mycobacteria, fungi and viruses but do not possess sporicidal efficacy. Quaternary ammonium compounds have no effect against bacterial spores or mycobacteria, while guanidines have better efficacy against Gram-negative bacteria, but are poorer against yeasts and moulds. Sources of contamination are also a crucial factor.
Schuelke & Mayr ranges perform in cleanrooms
<p>Suppliers of cleaning products for cleanrooms, Schuelke & Mayr, recognise the fact that the production process for any company requires properly targeted cleaning and disinfection measures - which means the use of a variety of cleaning agents and disinfectants. </p>