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Author: Subject: Question on extraction of sorbic acid from rowan berries.
Syn the Sizer
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[*] posted on 12-9-2020 at 11:47
Question on extraction of sorbic acid from rowan berries.


Hello friends,

I am planning a fun extracting of sorbic acid from rowan berries (genus Sorbus). I am not looking for an easy source of sorbic acid since hydrolysis of potassium sorbate is much easier and cheaper. This is purely experimental. My plan is to form a slurry with the pulp and extract using a base, filter than hydrolyze with HCl.

My question is should I use fresh or dried berries and will sodium carbonate work or is the hydroxide better?
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DraconicAcid
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[*] posted on 12-9-2020 at 19:12


You probably want sodium carbonate, because hydroxide will also deprotonate a host of phenolic compounds. Stick with the selective stuff.



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[*] posted on 12-9-2020 at 19:35


Quote: Originally posted by DraconicAcid  
You probably want sodium carbonate, because hydroxide will also deprotonate a host of phenolic compounds. Stick with the selective stuff.


Awesome, thanks for the input.
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[*] posted on 13-9-2020 at 01:56


On the same basis, bicarbonate might be even better.
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[*] posted on 13-9-2020 at 14:58


Thanks
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[*] posted on 13-9-2020 at 15:01


On a similar note, I'm thinking of extracting malic acids from apples. Any suggestions on separating it from maleic and malonic?



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[*] posted on 15-9-2020 at 07:06


Quote: Originally posted by DraconicAcid  
On a similar note, I'm thinking of extracting malic acids from apples. Any suggestions on separating it from maleic and malonic?


That sounds like a fun project too. I however don't have any good input at the moment though I think I am going to do a bit of research now.
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