Patent · US Expired

Use of aqueous L-Tryptophan and/or L-Threonine salt solutions

US6162442A · kind A · utility

8Cited by

5References

4Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Hermann Lotter · Großkrotzenburg, DE
Karlheinz Drauz · Alzenau, DE

Key dates

Filing date	Oct 30, 1996
Grant date	Dec 19, 2000
Priority date	—
Expiry date	Oct 30, 2016

Classification

Technology area (CPC A)Human Necessities
CPC primaryA23K40/00
WIPO fieldFood chemistry
WIPO sectorChemistry

Abstract

Highly concentrated aqueous L-Tryptophan and/or L-Threonine salt solutions are used to supplement mixed feeds with L-Tryptophan and/or L-Threonine. They can be metered easily and accurately, can be produced in a highly concentrated form with a content of between 30 and 70% and are storage stable to a surprisingly high degree (slight tendency to crystallize, no chemical decomposition, no racemization) even over a relatively long period of at least three months when outside temperatures are low.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.