PRODUCT CATEGORY

Sweeteners

Sorbitol D-Xylose Xylitol Maltitol Isomaltitol D-Mannose Mannitol Erythritol Lactitol Trehalose Sucralose L-Arabinose Crystalline Fructose Isomaltulose Dextrose Anhydrous Dextrose Monohydrate Maltodextrin Acesulfame-K Sodium Cyclamate Stevia Neotame Saccharin Sodium Allulose Aspartame

Thickeners

Xanthan Gum Compound Carrageenan Pure Powder Carrageenan Pectin Gelatin Guar Gum Konjac Powder Konjac Gum Gellan Gum Curdlan Magnesium Chloride Gluten β-Cyclodextrin Chitosan Oligosaccharide Pullulan Soluble Soy Polysaccharide Sodium Alginate Sodium Polyacrylate Hypromellose Coffee Dextrin Yellow Dextrin Corn Starch Compound-Pectin Glucono-Delta-Lactone Propylene Glycol Alginate

Preservatives

Sorbic Acid Potassium Sorbate Potassium Acetate Sodium Diacetate Sodium Dehydroacetate EDTA-2Na D-isoascorbate Sodium Potassium Formate Lactic Acid Sodium Lactate Potassium Chloride Calcium Propionate Sodium Propionate Benzoic Acid Potassium Benzoate Calcium Benzoate Zinc Dibenzoate Sodium Benzoate Bronopol ε-polylysine Natamycin Nisin Transglutaminase(TGase) Calcium Acetate Sodium Acetate

Antioxidants

Ascorbic Acid Sodium Ascorbate D-sodium Erythorbate Butylated Hydroxytoluen (BHT) Tert-Butylhydroquinone(TBHQ) Vitamin C Palmitate Soy Isoflavones

Amino Acid

L-Lysine L-Leucine L-Methionine L-Citrulline L-Proline L-Serine L-Valine L-Isoleucine L-Histidine L-Tryptophan L-Alanine Beta-Alanine L-Cysteine Hydrochloride Monohydrate DL-Methionine L-Arginine L-Threonine L-Theanine L-Glutamic acid Glycine L-Cystine L-Tyrosine L-Phenylalanine L-Glutamine L-Cysteine L-Aspartic acid γ-Aminobutyric Acid/GABA L-Lysine Hydrochloride Calcium L-aspartate L-Cysteine Hydrochloride Anhydrous N-Acetyl-L-cysteine Taurine D-Alanine L-Ornithine-L-Aspartate L-Arginine-Hydrochloride N-Acetyl-L-Tyrosine L-Lysine-Acetate L-Histidine-Hydrochloride-Monohydrate

Dietary Fiber

Polydextrose Soybean Oligosaccharides Fructoolig Osaccharide(FOS) Xylo-oligosaccharides Galacto-Oligosaccharides Iso-malto-oligosaccharide(IMO) Lactulose Stachyose Inulin Resistant Dextrin

Acidity Regulators

Citric Acid Citric Acid Monohydrate Citric Acid Anhydrous Potassium Citrate Sodium Citrates Calcium Citrate DL-Malic Acid L-Malic Acid Fumaric Acid Lactic Acid Phytic Acid Sodium Phytate Potassium Carbonate Disodium Succinate

Emulsifier

Stearic Acid Sodium Stearate Distilled Monoglyceride Sucrose Fatty Acid Esters(SE) Glycerol Monostearate Sorbitan Monostearate (Span 60)

Nutrition Enhancers

Chondroitin Sulphate Yeast β-glucan Chromium Yeast Selenium-Enriched Yeast(SY) Zinc-rich Yeast Choline chloride L-carnitine L-Carnitine-L-Tartrate Kojic Acid Lipoic Acid Creatine Monohydrate Inositol Magnesium Lactate Zinc Citrate Zinc Gluconate Calcium Gluconate Manganese Gluconate Magnesium Gluconate Copper Gluconate Ferrous Gluconate Ferric Pyrophosphate Ferrous Lactate Ferrous Fumarate Zinc Lactate Calcium Lactate Bovine Spleen Peptide Powder Soybean Lecithin Glutathione

Vitamins

Vitamin A Vitamin B1 Vitamin B2 CalciumD-Pantothenate/Vitamin B5 Vitamin B6 Folic acid/Vitamin B9 Vitamin B12 Vitamin C Vitamin D3 Vitamin E powder Vitamin K1 Vitamin K2 Nicotinic Acid Nicotinamide Calcium-L-Threonate Magnesium-L-Threonate Riboflavin5'-Sodium-Phosphate

Protein Supplement

Egg Yolk Powder Egg White Powder Egg Powder Bovine Collagen Peptide (Fortibone） Fish Collagen Peptide Casein Phosphopeptide(CPP) Soy Protein Isolates Spirulina Powder Whole Milk Powder Skimmed Milk Powder Whey Protein Isolate Soybean Peptide

Anticaking Agents

Magnesium Stearate Calcium Stearate Potassium Stearate Microcrystalline Cellulose Silicon Dioxide

Factory Supply Food Grade L-Proline

Type	Amino acid
Product Name	L-Proline
CAS No	147-85-3
Molecular Formula	C5H9NO2
Grade	Food grade
Packaging	25kg/drum

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Description Specification Certification Application Packing & Shipping

Description

L-proline is one of the twenty amino acids for protein synthesis in the human body. At room temperature, it is a colorless to white crystal or crystalline powder with a slight odor and a slightly sweet taste. It is readily soluble in water and ethanol, insoluble in ether, butanol and isopropanol, and soluble in inorganic acids.

Advantages:

Promote protein synthesis: L-proline enhances the structure of collagen and elastin, maintaining the health of the skin and joints.
Antioxidant effect: L-proline eliminates free radicals and delays cellular aging.
Moisturizing repair: L-proline enhances the skin barrier function and reduces water loss in cosmetics.
Agricultural application: L-proline can enhance the stress resistance of plants.

Factory Supply Food Grade L-Proline

Specification

ITEM	STANDARD	RESULT
Appearance	White crystals or crystalline powder	White crystals powder
Assay ,%	98.5~101.5	99.51
Specific optical rotation [a]25 D	-84.3°~-86.3°	-85.3°
Chloride(as Cl),%	≤0.05	<0.05
Sulphate(as SO4),%	≤0.03	<0.03
lron(as Fe),%	≤0.003	<0.003
Heavy metals (as Pb),%	≤0.0015	<0.0015
Loss on drying,%	≤0.40	0.23
Residue on ignition,%	≤0.40	0.21

Certification

Application

Nutritional fortifier
Sports nutrition products: L-proline is added to protein powder and energy bars to promote muscle repair and growth.
Special diet: Used in postoperative rehabilitation foods or nutritional supplements for the elderly to support tissue repair.
Infant formula milk powder: In some formulas, it is used as an amino acid balancing agent to simulate the components of breast milk.
Flavor improvement and food processing
L-proline participates in the Maillard reaction at high temperatures and combines with reducing sugars to form pyrazine and furan compounds, endowing food with unique flavors and colors. It is commonly found in:
Baked goods: Enhance the burnt aroma and golden color in bread and biscuits.
Meat processing: Enhance the umami flavor in sausages and hams and reduce salt dependence.
Condiments: As a natural umami enhancer in soy sauce and sauces, it can replace part of monosodium glutamate (MSG).
Antioxidation and food preservation
L-proline, in combination with vitamin C, polyphenols, etc., delays lipid oxidation by eliminating free radicals and extends the shelf life of food.
Fatty foods: Added to nuts and fried foods to enhance flavor.
Meat products: Inhibit fat oxidation during processing, maintain color and flavor.
Accelerator of the fermentation industry
In fermented foods (such as cheese, yogurt, and soy sauce), L-proline can serve as a nitrogen source and osmotic pressure regulator:
Yeast culture: L-proline enhances the tolerance of baker's yeast to high sugar and improves the efficiency of dough fermentation.
Probiotic fermentation: L-proline enhances the vitality of lactic acid bacteria and optimizes the texture and acidity of yogurt.
Flavor substance precursors: In the brewing of alcoholic beverages, they participate in the formation of higher alcohols and ester substances, enriching the aroma layers.
Functional foods and sugar substitutes
L-proline, as a stabilizer, is compounded with aspartame, sucralose, etc., to improve solubility and taste.

Packing & Shipping

L-Proline is packaged in drums or kraft paper bags, 25KG Per Drum/Bag, FCL/LCL shipped by sea