Global Supply Solution for Pharmaceutical-Grade L-Methionine Powder:

The L-methionine powder supplied by Shaanxi Hongda Phytochemistry has become a cornerstone for evaluating the scientific validity of amino acid formulations. For overseas B2B buyers, liver health brands, and multinational pharmaceutical companies, our methionine powder has evolved from basic performance indicators to include aspects such as the purity of chiral isomers, extreme limits of heavy metal impurities, and antioxidant stability in premixes. L-methionine is widely used in pharmaceuticals, food, feed, and cosmetics, with the largest usage as a feed additive.

Shaanxi Hongda provides a standardized delivery solution from bio-fermentation to multi-stage purification. We not only provide the powder, but also deliver "production line certainty"—through integrated PLC digital control and ion exchange purification processes, we ensure that every batch of product far exceeds the most stringent requirements of the USP and European Pharmacopoes in terms of transmittance and chiral purity.

L-Methionine Powder

Advantages

In the high-end amino acid supply chain, the core quality of L-methionine lies in its status as an essential sulfur-containing amino acid and its control over crystal stability.

1. High-purity chiral synthesis and fermentation: We employ advanced bio-fermentation combined with directional conversion technology to ensure 100% L-chiral structure. Compared to inexpensive DL-type mixtures, our L-methionine has higher bioavailability and can directly participate in protein synthesis and methylation cycles in the human body.

2. Extreme impurity profile control: Through five-stage recrystallization purification, we strictly control the total amount of known impurities and process-derived impurities to within 0.05%, significantly reducing the risk of degradation during long-term storage.

3. Improved physical properties: Addressing the pain points of electrostatic adsorption and poor flowability that easily occur during high-speed filling, we provide powder with precisely screened particle sizes, ensuring a uniform distribution rate of over 99.5% in the premix system.

Product specification

ANALYSIS	SPECIFICATION	RESULTS
Appearance	White powder	Complies
Odor	Characteristic	Complies
Tasted	Characteristic	Complies
Assay	99%	Complies
Sieve Analysis	100% pass 80 mesh	Complies
Loss on Drying	5% Max.	1.02%
Sulphated Ash	5% Max.	1.3%
Extract Solvent	Ethanol & Water	Complies
Heavy Metal	5ppm Max	Complies
As	2ppm Max	Complies
Residual Solvents	0.05% Max.	Negative
Microbiology
Total Plate Count	1000/g Max	Complies
Yeast & Mold	100/g Max	Complies
E.Coli	Negative	Complies
Salmonella	Negative	Complies

L-methionine powder benefits

1. L-Methionine Powder can improve immune function;

2. L-methionine can improve antioxidant capacity;

3. L-methionine bulk can improve reproductive performance;

The results showed that L-methionine was involved in the process of sperm formation, and low methionine level diet could significantly reduce sperm density and effective sperm number;

4. Detoxification function

L-methionine pure powder can be an essential amino acid for animals. It can be used to detoxify toxic substances or drugs by methylation of its methyl group. The study found that methionine can combine with mycotoxins in the diet to greatly reduce its toxicity, so it has the function of disease prevention and health care for animals.

L-methionine application

1. Application in the pharmaceutical industry

L-Methionine Powder is an essential amino acid and has important nutritional value for the human body. Methionine can maintain the growth and development of the body and the nitrogen balance. In the process of animal metabolism, it has a certain effect on the synthesis of adrenaline choline and liver fat. Methionine can promote the metabolism of intrahepatic fat and is used in the prevention and treatment of chronic hepatitis, cirrhosis, fatty liver, etc.

2. Application in the feed industry

Pure Methionine is one of the important amino acids in animal protein synthesis. Adding it into the feed can promote the growth of livestock, increase the amount of lean meat, shorten the feeding cycle and effectively improve the utilization rate of protein.

3. Other applications

In medical cosmetology, methionine bulk powder is a good antioxidant because the sulfur atom contained in methionine molecule can remove free radicals. In addition, methionine is also used in food additives, cosmetics raw materials, biochemical experiments, etc.

Why choose shaanxi hongda's methionine ?

High Quality

Our products are strictly produced according to cGMP standards, no residue, no additives, high content, high safety, and test reports are available at any time.

laboratory

Certifications

We have obtained BRC, SGS,ORGANIC (EU), ORGANIC (NOP), ISO2200, ISO1900, FDA, HALAL, KOSHER and national certification of high-tech innovative enterprises.

certifications

Specialized Laboratory

We have a highly standardized laboratory certified by the state and a number of patented technologies.

Custom Service

For direct compression tablet customers, we offer granulated methionine with excellent compressibility, reducing the need for excipients and increasing the final drug content.

Factory

Product lists

L-Methionine	63-68-3	L-Leucine	61-90-5
L-Threonine	72-19-5	L-Cysteine	52-90-4
L-Tryptophan	73-22-3	L-Citrulline	372-75-8
L-Isoleucine	73-32-5	L-Glutamic Acid	56--86-0
L-Valine	72-18-4	L-Norvaline	6600-40-4
L-Lysine	56-87-1	L-Histidine	71-00-1
L-Lysine Hcl	1657-27-2	L-Glutamine	56-85-9
L-Alanine	56-41-7	L-Glycine	56--40-6
L-Aspartic Acid	56-84-8	L-Theanine	3081-61-6
L-Malicacid	97-67-6	N-acety1-L-cysteine	616-91-1
L-Phenylalanine	63-91-2	N-acety1-L-leucine	1188-21-2
L-Serine	56-45-1	N-acetyl-L-tyrosine	5537-55-3
L-Arginine	74-79-3	Acety1-L-Carnitine	5080-50-2
L-Proline	147-85-3	N-acetyl-L-carnosine	56353-15-2
L-Tyrosine	60-18-4	L-Arginine Hcl	1119-34-2

Product Package

Accept customized Packaging and production

Storage: Store in a cool, dry, clean place away from moisture and direct sunlight.

Packing: 25kg/drum or according to demand.

Lead Time: 3-7 days.

Shelf Life: 2 years.

Remark: Customized specifications or packages are available.

Packaging

FAQs:

Q1: How do you guarantee that your L-methionine is free of D-isomers?

A: We use a dual-locking method: optical rotation detection and chiral HPLC. The specific rotation of each batch is strictly controlled within the upper limit of the standard value, ensuring that the raw materials entering the customer's factory have 100% biological activity.

Q2: How do you address the naturally occurring odor of L-methionine?

A: We minimize volatile sulfur impurities through multi-stage physical purification and high-purity precipitation processes. For oral formulation customers, we can provide specific odor masking technology suggestions or combine them with microencapsulation processes.

Q3: What are your moisture-proof measures for cross-border transportation?

A: We use pharmaceutical-grade light-proof aluminum foil double-layer vacuum packaging with added pharmaceutical desiccant. In accelerated stability tests at 40°C/75% RH, our product maintained excellent powder flowability for 6 months without clumping.

Contact Us

In the field of amino acid raw materials, chiral purity and the stability of physical properties determine the longevity of a brand. Shaanxi Hongda provides you with the latest L-methionine powder in stock and the latest factory price list. Welcome your inquiries:duke@hongdaherb.com.