Home Cosmetic Science Talk Formulating Advanced Questions Product contamination by which of these microorganisms can increase the pH of product?

  • Product contamination by which of these microorganisms can increase the pH of product?

    Posted by Abdullah on March 10, 2022 at 2:20 pm

    Product contamination by which of these microorganisms can increase the pH of product?

    1. Pseudomonas aeruginosa

    2. Escherichia coli
    3. Burkholderia cepacia
    4. Staphylococcus aureus
    5. Aspergillus niger
    6. Candida albicans
    7. E coli
    Abdullah replied 2 years, 8 months ago 3 Members · 5 Replies
  • 5 Replies
  • PhilGeis

    Member
    March 10, 2022 at 2:31 pm

    what product?

  • Abdullah

    Member
    March 10, 2022 at 2:34 pm

    PhilGeis said:

    what product?

    Any product like lotion or shampoo. 

    My point is that is there any microorganism that can increase or change the pH of a product?

  • PhilGeis

    Member
    March 10, 2022 at 3:14 pm

    Doubt much info - but product ingredients prob would be functional - sugars, amino acids, protein, 

  • OldPerry

    Member
    March 10, 2022 at 3:40 pm

    I think your question doesn’t have enough information to give an answer beyond…it depends. The ingredients that are in your formula matter.

    The pH of your system is dependent on all the ingredients in there. If bacteria start breaking down a compound that is responsible for shifting the pH lower, then the pH of your system will likely increase. But if the bacteria break down something that increases the pH, then the system pH will decrease.

    So it depends. What are they eating and how does that ingredient affect the system pH?

  • Abdullah

    Member
    March 11, 2022 at 1:24 am

    Perry said:
    The pH of your system is dependent on all the ingredients in there. If bacteria start breaking down a compound that is responsible for shifting the pH lower, then the pH of your system will likely increase. But if the bacteria break down something that increases the pH, then the system pH will decrease.

    I got my answer. Thanks

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