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Shelf life of essences with alcohol as a preservative


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#1 rubered

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Posted 08 March 2011 - 03:34 PM

Hi

I wonder if anybody has any information about determining shelf life of essences which are a mixture of alcohol (40% brandy) and filtered water, at a % of alcohol to water of 10, 20. 33. 40 % 50 %.

Any help of information would be great.



#2 Dr Ajay Shah

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Posted 11 March 2011 - 02:48 AM

You can either conduct an accelerated shelf life and there are some laboratoreis that may perform this test. This is subjecting the products at elevated temperatures and conducting tests on them.

I feel that this test is not as accurate as if you were to store the samples and conducting tests every month depending on what sort of shelf life you were looking for. you can test for microbiological tests, sensory tests for smell and flavour profile.

I hope this helps.

:biggrin:


Edited by Dr Ajay Shah, 11 March 2011 - 02:49 AM.

Dr Ajay Shah.,
BSc (Hons), MSc, PhD, PGCE(FE)
Managing Director & Principal Consultant
AAS Food Technology Pty Ltd
www.aasfood.com


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#3 SaRaRa

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Posted 27 March 2011 - 05:06 PM

Dear rubered,

Maybe you can find useful input in the following links:

Food product shelf life

The stability and shelf life of foods

Good luck!
Philip






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