l -Tryptophan Production

Authored by: M. Ikeda

Handbook of Corynebacterium glutamicum

Print publication date:  March  2005
Online publication date:  March  2005

Print ISBN: 9780849318214
eBook ISBN: 9781420039696
Adobe ISBN:

10.1201/9781420039696.ch21

 Download Chapter

 

Abstract

l-Tryptophan, one of the essential amino acids in the diets of humans and other mammals, such as pigs and poultry, is the second least abundant of the proteinogenic amino acids, constituting approximately 1% or less of an average protein [81]. Since l-tryptophan is particularly scarce in cereal grains, this amino acid is of considerable value for animal nutrition. Furthermore, l-tryptophan is known to improve the sleep state and mood because it is a precursor of serotonin, which acts as a neurotransmitter in the nervous system [5]. Owing to these nutritional and medicinal benefits, the amino acid has various application fields, including food additives, pharmaceuticals, and feed supplements. The market for l-tryptophan as a supplement of animal feed, however, is still in development because of rather high production costs, but it is expected to expand in the near future through the realization of cost-effective production. The annual world production of l-tryptophan is currently estimated at about 500 t. The major suppliers of the aromatic amino acids and their listed prices have been summarized by Bongaerts et al. [7].

 Cite
Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.