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==Nutrition== | ==Nutrition== | ||
"Nutrition" in this context refers to sources of yeast-assimilable nitrogen (YAN), necessary vitamins, and certain trace minerals. YAN is the amount of nitrogen from the combination of ammonium plus Free Amino Nitrogen (FAN), in the form of amino acids. | "Nutrition" in this context refers to sources of yeast-assimilable nitrogen (YAN), necessary vitamins, and certain trace minerals. YAN is the amount of nitrogen from the combination of ammonium plus Free Amino Nitrogen (FAN), in the form of amino acids. | ||
Nitrogen is generally plentiful in wort and typically does not require supplementation for beer production.<ref name="Ferreira">Ferreira, Inês M., and Guido, Luís F. [https://www.mdpi.com/2311-5637/4/2/23/pdf "Impact of Wort Amino Acids on Beer Flavour: A Review."] ''Fermentation.'' 2018, 4, 23.</ref> The concentration of the amino acids isoleucine, valine, phenylalanine, glycine, alanine, tyrosine, lysine, histidine, arginine and leucine, are considered important, as these are an important part of the complex system regulating the biosynthesis of flavour-active compounds formed by yeast.<ref name="Ferreira"/> | |||
'''Measuring YAN'''<br/> | '''Measuring YAN'''<br/> | ||