TRP-Nettle (R&D Naturals)


L-Tryptophan

Description
White, powdered, essential amino acid.
Origin
Precursors and biosynthesis made in the UK.
Biosynthesis & Extraction
Biosynthesized from a wild type thermoacidophilic bacteria Bacillus acidocaldarius.
Quality Control
A fructose-based defined fermentation medium, containing 6.5 kg m−3 fructose, 3.2 kg m−3 (NH4)2HPO4, and a salt solution, was designed by investigating the influence of carbon and nitrogen sources and ions, to create the physiological conditions where the regulatory mechanisms in Bacillus acidocaldarius operate weakly. The effects of oxygen transfer were monitored within limited-oxygen transfer, low-oxygen transfer, and medium-oxygen transfer conditions by using the following parameters:
QO/VR = 0.25 and 0.6 vvm and N = 280 and 600 min−1 in V = 3 dm3 bioreactors, at initial pH 5.0 and T = 54 °C.
The fructose, cell, tryptophan, and the other amino acid and organic acid concentrations, the oxygen transfer rate (OTR), oxygen uptake rate (OUR), and oxygen transfer coefficients (KLa) were determined throughout the bioprocess.

 

Nettle

Description
Powdered leaves and roots of herbaceous perennial flowering plant, native to Europe, Asia, northern Africa, and North America.
Origin
Collected in Northern Europe and the United States.
Extraction
N/A
Quality Control
The leaves and the roots have been thoroughly tested for cleanliness and quality before drying and milling. The final product is subjected to extensive testing to ensure it meets our final release specification.