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Vegetable Oils Storage
Hi there!
I have a question about vegetable oils’ storage in the lab.I know that the best way to store raw materials is to keep them in a cool dark place and in a opaque bottle. Also, I know some people that adds antioxidant when they buy the oil to prevent oxidation/rancidity. Is it really necessary? How much of antioxidant would be added to really protect the oils against oxidation?Thanks in advance!
Best regards,
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6 Replies
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It all depends… how fast you use the oils? How fresh they are and how susceptible they are to become rancid.
Rosemary antioxidant is used at less than .5%.
https://www.newdirectionsaromatics.com/products/preservatives/rosemary-antioxidant-co2-extract.html -
@tecnico3vinia may vitamine E can be alternative.
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And some of us….use both.
I use a low rate upon arrival….and then the same low rate…at time of formulation.
I also refrigerate all my oils…. but I’m a little nuts.
Some oils, like meadowfoam and Jojoba liquid wax…I just don’t bother with.
Aloha.
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I refrigerate all liquid oils since they are more susceptible to rancidity. I would do as Graillotion, but my fridge is not large enough for coconut and palm oils 1 gallon containers.
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Syl said:It all depends… how fast you use the oils? How fresh they are and how susceptible they are to become rancid.
Rosemary antioxidant is used at less than .5%.
https://www.newdirectionsaromatics.com/products/preservatives/rosemary-antioxidant-co2-extract.htmlThank you!
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Fekher said:@tecnico3vinia may vitamine E can be alternative.
I agree! Thank you.
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