China Factory Supply Specialized Production L- Threonine 72-19-5
China Factory Supply Specialized Production L-Threonine 72-19-5, Find details about China L-Threonine, C4h9no3 from China Factory Supply Specialized Production L-Threonine 72-19-5
It contains an α-amino group (which is in the protonated −NH+3 form under biological conditions),
a carboxyl group (which is in the deprotonated −COO− form under biological conditions),
and a side chain containing a hydroxyl group, making it a polar, uncharged amino acid.
It is essential in humans, meaning the body cannot synthesize it:
it must be obtained from the diet. Threonine is synthesized from aspartate in bacteria
such as E. coli. It is encoded by all the codons starting AC (ACT, ACC, ACA, and ACG).
L-threonine is an optically active form of threonine having L-configuration.
It has a role as a nutraceutical, a micronutrient, a Saccharomyces cerevisiae metabolite,
a plant metabolite, an Escherichia coli metabolite, a human metabolite,
an algal metabolite and a mouse metabolite. It is an aspartate family amino acid,
a proteinogenic amino acid, a threonine and a L-alpha-amino acid.
It is a conjugate base of a L-threoninium. It is a conjugate acid of a L-threoninate.
It is an enantiomer of a D-threonine. It is a tautomer of a L-threonine zwitterion.
L-threonine is an important nutritional supplement which could fortify cereals,
pastries, dairy products, restore the body as fatigue, and promote growth
and development like tryptophan. Due to its structure contained threonine hydroxyl,
which could held the water on human skin and combined with the
oligosaccharide chains to protect cell membranes.
Threonine plays an important role in the body,
promoted phospholipid synthesis and fatty acid oxidation.
Item | Specification | Result | Test Methods |
Appearance | White powder | Conforms | Organoleptic |
Odor & taste | Characteristic | Conforms | Organoleptic |
Mesh size | Through 80 mesh | Conforms | 80 mesh screen |
Assay | ≥98.0% | 99.23%(HPLC) | HPLC |
Loss on Drying | ≤2.00% | 0.35% | Drying Method |
Ash | ≤2.00% | 0.29% | Ashing Method |
Heavy metals | |||
Total Heavy Metals | ≤10ppm | Conforms | |
Arsenic | ≤1ppm | Conforms | GF AAS |
Lead | ≤2ppm | Conforms | AFS |
Cadmium | ≤1ppm | Conforms | AFS |
Hygrargyrum | ≤0.1ppm | Conforms | AFS |
Residual Solvent | Meet Eur.Ph6.0<5.4> | Conforms | Eur.Ph 6.0<2.4.24> |
Pesticide Residue | Meet the requirements | Not detected | SOP/SA/SOP/SUM/304 |
Microbiological Tests | |||
Total Plate Count | ≤5000cfu/g | Conforms | Bacterial culture |
Total Yeast & Mold | ≤100cfu/g | Conforms | Bacterial culture |
E.Coli | Negative | Conforms | Bacterial culture |
Salmonella | Negative | Conforms | Bacterial culture |
Staphylococcus | Negative | Conforms | Bacterial culture |
USES
Heatlh Food or Feed Additives
Active Pharmaceutical Ingredients(APIs)
Raw Material of Fine Chemicals
Hebei Zhentian Food Additive Co., LTD is the premium producer and supplier
of chemical raw materials. Our main products are Flavors and fragrances,
Food and feed additives,Dyes and Pigment, cosmetic raw materials,
Organic Intermediate, Inorganic chemicals, Catalysts and chemical Aluxiliary etc.
We are furnished with sophisticated production experience and strict quality control system,
and our entire production process is conducted in more strict compliance
with ISO 9001:2000 quality management system from sourcing raw materials, processing,
inspecting and after-sale services and others.We have always kept cooperation
and partnership with many more professional laboratories to improve our products.
We own one-stop sales service team, professional client service team and production team,
overcritical inspection team and experienced R & D team and far-sighted leader team.
Our products are widely exported to many more and more countries and
we are rewarded with wide acceptance and praise from our honored clients.
What makes us unique: premium quality, higher efficiency, professionality,
one-stop services,integration capability,enacity, integrity and honesty.
Q: How to start orders or make payments?
A: You can send us your Purchase order(PO), or just send a simple
confirmation by email or by Trade Manager, after communication
then we will send you Proforma Invoice with our bank details
for final confirmation, then you
can make payment accordingly.
Q: What's our Minimun Ordering Quantity (MOQ)?
A: For the high value products, our MOQ starts from 1 gram and other
products generally starts from 1 kilogram. For other low value products,
MOQ can be started from 10kgs to 100kgs.
Q: How do we guarantee our products quality?
A: First of all, our quality control system will reduce our quality problem to
near zero.We can always provide our certificate of analysis according
to every batch of our products.We can also provide third party analysis
testing due to our clients' requirement.
If there is any quality issue caused by us, we will send you free
goods for replacement or refund your loss.
Q: How to contact us ?
A: You can contact us thought inquiries to message box of any of our
products displayed or contact us online on Trade Manager on Alibaba.
You can also sent us emails to our company email address
or simply call us at anytime!
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