10-08-2009, 02:42 PM
Join Date: Sep 2006
Yes, it is used to adjust pH.
If you need a preservative, you need to use a product that is actually a preservative. There are no natural ones--not a single one. I make toiletries and I used to work in microbiology. Whoever makes a natural preservative is going to be one very, very rich person/corporation.
GSE won't work--or maybe I should say, it does work but not in the way most people think. Manufacturers of GSE were putting preservatives--parabens or benzethonium chloride in their product. That's what had the antimicrobial activity; not the GSE itself.
(Source: Identification of Benzethonium Chloride in Commercial Grapefruit
Gary Takeoka,* Lan Dao, Rosalind Y. Wong, Robert Lundin, and Noreen Mahoney
Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture,
800 Buchanan Street, Albany, California 947103316 J. Agric. Food Chem. 2001, 49, 3316−3320)
If you want to use a preservative in a product, you're going to have to do a little chemistry work or you can contact someone who sells preservatives, tell them what you made and ask for a suggestion on how to preserve it.
Proud to be Metis!
Last edited by Redbone; 10-08-2009 at 02:44 PM.
Reason: mispelled words!