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Tryptophan

What is Tryptophan?

Tryptophan is one of the 20 standard amino acids, as well as an essential amino acid in the human diet. [1]

Sources

Plants and microorganisms commonly synthesize tryptophan from shikimic acid or anthranilate. [1]

The industrial production of tryptophan is also biosynthetic and is based on the fermentation of serine and indole using either wild-type or genetically modified bacteria such as B. amyloliquefaciens, B. subtilis, C. glutamicum or E. coli. [1]



History

The isolation of tryptophan was first reported by Sir Frederick Hopkins in 1901 through hydrolysis of casein. From 600 grams of crude casein one obtains 4-8 grams of tryptophan. [1]

Other Ingredient Information

Products containing Tryptophan


The percentage represents the approximate total number of food products from UPC Food Search's data that contain the ingredient, "Tryptophan".
The data is calculated from UPC Food Search's product data only, and is not meant to reflect all food products regionally or globally.

Source(s) Derived From

 Plant Sources, Other Natural Sources, Chemical (Synthetic) Sources

Natural or Artificial?

 Both (Can be derived from Natural & Artificial Sources)

References
  1. Tryptophan - Wikipedia

Aliases (Also Known As)


 L Tryptophan
Natural L Tryptophan

Color Key - (Click/Tap to View) Dash

  • Natural
  • Natural & Possibly Unsafe
  • Artificial
  • Artificial & Possibly Unsafe
  • Both (Can be derived from Natural & Artificial Sources)
  • Both (Can be derived from Natural & Artificial Sources) & Possibly Unsafe

Revision History

Action User Date/Time
Ingredient addedUPC Food SearchJanuary 1, 2009 @ 2:14 AM

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