Sciencemadness Discussion Board

Ammonium Sulfate vs Amino Acids

VeritasC&E - 5-9-2020 at 11:31

Hi,

I know from wikipedia that (NH4)2SO4 is used to salt proteins out of solutions. I was wondering, does this work well with pure solutions of individual amino acids (a single AA in solution)?

If it works, with which ones does it work well, and with which ones does it not work well (or at all)?

wg48temp9 - 7-9-2020 at 05:53

Perhaps the paper below, titled "The effect of ammonium sulfate on the solubility of amino acids in water at 298.15 and 323.15K" will help you.
Attachment: amino-acid sol-ferreira2009.pdf (449kB)
This file has been downloaded 710 times

VeritasC&E - 10-9-2020 at 00:53

Quote: Originally posted by wg48temp9  
Perhaps the paper below, titled "The effect of ammonium sulfate on the solubility of amino acids in water at 298.15 and 323.15K" will help you.


Thanks, you're awesome!

wg48temp9 - 10-9-2020 at 06:08

Your welcome

DavidJR - 10-9-2020 at 09:39

Also interesting: https://en.wikipedia.org/wiki/Hofmeister_series