Acide citrique
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Acide citrique

Citric Acid supplier bulk factory Wholesale buy Extract factory

  1. Nom anglais: Acide citrique
  1. Spécification
    • Pureté: ≥ 99,5% (HPLC)
    • Solubilité: Extrêmement soluble in water (133 g/100 mL at 20°C), soluble in ethanol (≥ 50 g/100 mL)
    • Appearance – associé: Perte à la dessiccation ≤ 0,5%, Métaux lourds ≤ 5 ppm, Solvants résiduels ≤ 0,2%
    • Fusion Niveau: 153°C
  1. Apparence
    • Colorless clair crystals or white crystalline powder, odorless, with un puissant, acidic style, not associé au chocolat
  1. N° CAS：77 – 92 – 9
  1. Délai de mise en œuvre: 3 à 7 jours ouvrables
  1. Emballer
    • 25kg/drum (polyethylene bag inside cardboard drum), 1000kg/bag (grand bag)
  1. Marché principal
    • International marché, avec vital demand in North America, Europe, Asia, principalement utilisé dans repas and beverage, pharmaceutical, cosmetics, and chemical industries
  1. Scénarios d'application

Propriétés de base

  • Chimique Construction: An organic tricarboxylic acid with the molecular méthode C₆H₈O₇. It has three carboxyl (-COOH) équipes, which endow it with sturdy acidic properties.
  • Clé Options
    • Régulation de l'acidité: As a weak organic acid, it might avec succès modifier the pH valeur de options, offre un constant acidic alentours.
    • Chelating Means: It may taper constant complexes avec acier ions équivalent à calcium, iron, and copper, arrêt acier – catalyzed oxidation and amélioration product stability.
    • Antimicrobien Impact: Inhibe l'extension de micro-organisme, yeast, and mould in acidic circonstances, enjoying un travail dans repas preservation.
    • Taste Renforcement: C'est amer style peut améliorer the flavour de repas et boissons, et stabilité douceur.

Scénarios d'application

1. Repas et boissons Entreprise

  • Acidulant and Taste Enhancer
    • Largement utilisé dans smooth drinks, fruit juices, jams, candies, and dairy marchandises. In carbonated boissons, il fournitures un rafraîchissant amer style and helps to stabilité the sweetness of sugar. Par exemple, in cola – trier boissons, the addition of 0.1 – 0.3% citric acid can améliorer the general goût.
    • In canned fruits and jams, it not uniquement adjusts the acidity mais en plus inhibe l'extension of microorganisms, extending the shelf durée de vie de marchandises.
  • Régulateur de pH
    • Utilisé dans cheese fabrication to regulate the pH valeur of milk, vente the coagulation of casein and the formation of cheese curds.
    • Dans le cadre de fabrication of pickles, it controls the pH of the brine pour s'assurer le conventionnel progrès of lactic acid micro-organisme et la norme of pickles.

2. Pharmaceutique Entreprise

  • Régulateur acido-basique dans les formulations médicamenteuses
    • Dans le cadre de preparation of oral liquids, syrups, and injection options, it’s utilisé to regulate the pH valeur pour s'assurer the steadiness and efficacy of medication. Par exemple, in some vitamin C injection options, citric acid is added to take care of an acceptable pH alentours.
  • Agent chélateur
    • As a chelating agent, it might compliqué avec acier ions in médecine arrêter drug oxidation and degradation, and améliorer the steadiness of medication.

3. Cosmétiques et Privé Soins

  • Ajustement du pH
    • Added to facial cleansers, toners, and lotions to regulate the pH valeur de marchandises to a degré approprié pour le pores et peau (souvent à peine acidic), servir à to take care of le conventionnel effectuer de la pores et peau barrier.
  • Antioxydant et conservateur
    • In some pores et peau – care marchandises, its chelating moyens peut devancer the catalytic oxidation of acier ions dans le méthode, et sur le identique time, its acidic alentours can inhibit l'extension de micro-organismes, enjoying un travail in product preservation.

4. Chimique Entreprise

  • Agent chélateur en galvanoplastie
    • Dans le cadre de electroplating cours de, it’s used as a chelating agent to compliqué avec acier ions dans le plating répondre, amélioration the uniformity and haute qualité of the plating layer.
  • Water Remède
    • As a water – softening agent, it might chelate with calcium and magnesium ions in water, abaissement water hardness and arrêt the formation of scale in water – en utilisant gear.

5. Différent Industries

  • Alimentation Entreprise
    • Added to animal feed as an acidulant and goût enhancer, ce qui pourrait améliorer the palatability of feed, promote the digestion and absorption of feed by animals, and sur le identique time inhibit l'extension de dangereux microorganisms in feed.
  • Textile Entreprise
    • Utilisé dans le textile dyeing and ending cours de as a pH regulator and chelating agent pour améliorer the dyeing impact et ombre fastness of materials.

Détection Stratégies

  • Excessif – Efficacité Chromatographie liquide (HPLC)
    • Colonne : C18 (250 × 4,6 mm, 5 μm), Cellulaire Section: 0.1% phosphoric acid répondre – methanol (95:5, v/v), Circulation Frais: 1,0 mL/min, longueur d'onde de détection : 210 nm. Ceci technique peut précisément quantify the contenu of citric acid in nombreux samples.
  • Titrage Méthodologie
    • Utilisation a normal sodium hydroxide répondre for acid – base titration, with phenolphthalein as an indicator, pour savoir le contenu of citric acid. This can be a traditional et en général used detection technique, particulièrement approprié for easy samples.
  • Chromatographie ionique
    • Can simultanément separate and detect nombreux anions avec citrate ions, with excessif sensitivity and good reproducibility, approprié pour le évaluation de compliqué samples containing un certain nombre de éléments.

Fournir & Avantages

  • Fabrication Stratégies
    • Primarily produced by fermentation of carbohydrates (équivalent à glucose) en utilisant Aspergillus niger. This organique fermentation technique a the benefits of excessif yield, low valeur, and environmental friendliness.
  • Polyvalent Objectifs
    • C'est un certain nombre de propriétés équivalent à acidity, chelating moyens, et goût – enhancing effectuer fais-le largement utilisé dans nombreux industries, assemblée the various veut of various fields.
  • Sécurisé Fournir
    • With mature fabrication compétence et un grand – scale industrial fabrication mannequin, it might garantie un constant marché fournir, et the worth est relativement constant.
  • Approbation réglementaire
    • Généralement reconnu comme protégé (GRAS) dans beaucoup de sites internationaux et zones, and has clear règles et exigences pour son utilisation dans de nombreux industries, which is conducive to its broad utility.
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Citric Acid: Nature’s Versatile Natural Powerhouse | Shaanxi Zhonghong Funding Expertise

1. Qu'est-ce que l'acide citrique ?

Citric acid (C₆H₈O₇) is a weak, tricarboxylic organic acid naturally occurring in citrus fruits like lemons, limes, oranges, and grapefruits. It serves as a key intermediate metabolite within the Krebs cycle (citric acid cycle), the first energy-producing pathway in cardio organisms. Industrially, it is one of the crucial broadly used organic acids as a result of its glorious solubility, nice bitter style, chelating properties, and buffering capability. It exists as a white, crystalline powder and is extremely water-soluble.

2. Supply, Chemical Properties & Key Identifiers

  • Alimentation principale : Traditionally extracted from citrus juice. Trendy industrial manufacturing (><｜finish▁of▁pondering｜> of world provide) makes use of submerged fermentation of carbohydrate sources (e.g., molasses, corn starch hydrolysates) by the filamentous fungus Aspergillus niger.

  • Propriétés chimiques :

    • Molecular System: C₆H₈O₇

    • Apparence: Cristaux incolores ou poudre cristalline blanche.

    • Odeur: Inodore.

    • Style: Strongly acidic, nice bitter style.

    • Solubilité: Extremely soluble in water, ethanol, and diethyl ether.

    • Valeurs pKa : pKa₁ = 3.13, pKa₂ = 4.76, pKa₃ = 6.40 (at 25°C). This makes it an efficient buffer over a spread related to meals and organic methods.

    • Chélation : Types secure complexes (chelates) with steel ions (e.g., Ca²⁺, Mg²⁺, Fe³⁺), essential for its position in cleansing brokers, meals preservation, and stopping oxidation.

  • Identifiants clés :

    • Quantité du registre CAS : 77-92-9 (anhydre) | 5949-29-1 (monohydraté)

    • Système moléculaire (MF) : C₆H₈O₇

    • Poids moléculaire (PM) : 192,124 g/mol (anhydre) | 210,14 g/mol (monohydraté)

    • Quantité EINECS : 201-069-1

3. Benefits, Security, & Issues

  • “Greatest” Citric Acid: The “finest” depends upon software. Meals/pharma grades require excessive purity (USP/BP/EP/FCC). Beauty grades want particular purity and microbial management. Shaanxi Zhonghong ensures >99.5% purity, exceeding typical business requirements (typically ~99%), guaranteeing superior efficiency and security.

  • Pores and skin Benefits:

    • Acide alpha-hydroxy (AHA) : Features as a gentle AHA, selling light exfoliation by breaking down desmosomes between corneocytes.

    • Ajustement du pH : Vital for formulating inside the pores and skin’s optimum acidic mantle (pH 4.5-5.5), enhancing barrier operate.

    • Antioxydant et chélation : Mitigates oxidative stress from free radicals and steel ions (e.g., Fe²⁺ concerned in Fenton reactions).

    • Éclaircissant : Inhibits tyrosinase exercise and reduces melanin switch, aiding in hyperpigmentation administration. Enhances penetration of different energetic elements.

  • Well being Benefits & Dietary Consumption:

    • Métabolisme énergétique : Central to the mitochondrial Krebs cycle (ATP manufacturing).

    • Absorption minérale : Chelates minerals, probably enhancing bioavailability (e.g., some types of calcium citrate).

    • Urinary Well being: Alkalinizes urine, probably stopping sure varieties of kidney stones (uric acid, cystine stones).

    • Propriétés antioxydantes : Contributes to mobile antioxidant defenses.

    • Consommation quotidienne : Citric acid is Typically Acknowledged As Protected (GRAS) by the FDA and authorised globally (EFSA, JECFA). No established Acceptable Each day Consumption (ADI) exists as a result of it is a regular physique metabolite. Consumption is restricted by palatability and gastrointestinal tolerance. Typical consumption is by way of meals and drinks.

  • Potential Facet Results & Precautions:

    • Érosion dentaire : Extremely acidic meals/drinks containing citric acid can erode tooth enamel with frequent publicity.

    • Irritation gastro-intestinale : Excessive concentrations might trigger heartburn or abdomen upset in delicate people.

    • Pores and skin Irritation: Undiluted citric acid powder or high-concentration options could cause irritation, stinging, or chemical burns. Beauty formulations are rigorously pH-balanced.

    • Contact visuel : Extreme irritant. Requires fast flushing.

    • Chélation : Can bind important minerals; important dietary imbalance is unlikely however potential with extreme supplementation.

    • Interactions médicamenteuses : Might have an effect on absorption of sure drugs (e.g., aluminum-containing antacids, some antibiotics). Seek the advice of a healthcare supplier.

4. Shaanxi Zhonghong Funding Expertise: Your Trusted Citric Acid Companion

Shaanxi Zhonghong Investment Technology Co., Ltd. stands as a premier high-tech enterprise integrating agile R&D, collaborative innovation, built-in manufacturing, and international advertising and marketing. We concentrate on serving the chemical, materials, and life science sectors, with deep experience within the extraction, separation, purification, and market software of bioactive plant constituents.

  • Compétences de base :

    • Prouesses scientifiques : Strategic alliances with 5 main universities underpin our 20+ patented applied sciences and distinctive international compound library.

    • Excellence de la fabrication : Using cutting-edge analytical instrumentation together with Chromatographie liquide à haute efficacité (HPLC) et Résonance magnétique nucléaire supraconductrice (RMN) spectrometers. Our stringent high quality management ensures citric acid purity exceeding business benchmarks by >20%.

    • Portée internationale : An intensive distribution community serving 80+ international locations throughout Asia, Europe, and the Americas. We offer bespoke ingredient options to multinational pharmaceutical firms, analysis establishments, and main producers.

    • Expérience confirmée : Leveraging 28 years of devoted expertise within the bioactive compounds business.

5. Product Specs: Rigorous High quality Assurance

Shaanxi Zhonghigh’s Citric Acid meets or exceeds main pharmacopoeial requirements (USP/BP/EP) and FCC necessities for meals grade. Our dedication to purity and security is demonstrated via complete testing:

Classe de contaminants Paramètre Spécification Technique de vérification
Résidus de pesticides Chlorpyrifos ≤ 0,01 mg/kg GC-MS/MS, LC-MS/MS
Dichlorvos ≤ 0,01 mg/kg GC-MS/MS, LC-MS/MS
Cyperméthrine ≤ 0,01 mg/kg GC-MS/MS, LC-MS/MS
DDT (Complete Isomers) ≤ 0,05 mg/kg GC-ECD, GC-MS/MS
Hexachlorobenzène ≤ 0,01 mg/kg GC-MS/MS
Métaux lourds Plomb (Pb) ≤ 1,0 mg/kg ICP-MS, AAS (four à graphite)
Arsenic (As) ≤ 1,0 mg/kg ICP-MS, HG-AAS
Cadmium (Cd) ≤ 0,5 mg/kg ICP-MS, AAS (four à graphite)
Mercure (Hg) ≤ 0,1 mg/kg CV-AAS, ICP-MS
Microbiologique Plaque complète Rely ≤ 1000 UFC/g ISO 4833-1
Levure et moisissure ≤ 100 UFC/g ISO 21527-1, -2
Escherichia coli Absent dans 10 g ISO 16649-2
Salmonella espèces Absent dans 25g ISO 6579-1
Staphylococcus aureus Absent dans 1 g ISO 6888-1, -2

6. Manufacturing Course of: Precision Fermentation & Purification

Our citric acid manufacturing leverages state-of-the-art submerged fermentation expertise:

  1. Préparation du substrat : Excessive-quality carbohydrate sources (e.g., non-GMO corn starch hydrolysate) are sterilized and conditioned.

  2. Fermentation: Aspergillus niger is cultivated beneath meticulously managed situations (pH, temperature, aeration, nutrient feed) to maximise citric acid yield.

  3. Séparation du mycélium : The fungal biomass is eliminated by way of filtration or centrifugation.

  4. Purification: The broth undergoes lime remedy (precipitation as calcium citrate), adopted by sulfuric acid regeneration to yield citric acid answer.

  5. Cristallisation: The answer is concentrated and crystallized (anhydrous or monohydrate types).

  6. Séchage et broyage : Crystals are dried to express moisture specs and milled to desired particle dimension distribution.

  7. High quality Management: Rigorous in-process and ultimate product testing (HPLC, NMR, ICP-MS, microbiological) ensures compliance with specs.

7. Scénarios d'application

Citric acid’s versatility spans quite a few industries:

  • Meals & Beverage (F&B): Main acidulant (tender drinks, juices, candies), taste enhancer, pH adjuster, preservative (chelates steel catalysts of oxidation), antioxidant synergist, emulsifying support in processed cheeses.

  • Médicaments prescrits : Excipient (effervescent formulations, taste masking, pH adjustment in syrups and injections), anticoagulant (blood assortment tubes), chelator in steel cleansing.

  • Cosmétiques et soins privés : pH adjuster (lotions, lotions, shampoos), chelating agent (stabilizes formulations, enhances preservative efficacy), AHA for exfoliation and brightening (serums, peels), antioxidant.

  • Family & Industrial Cleaners: Key chelating agent in descaling brokers, dishwasher detergents, lavatory cleaners (removes onerous water stains, rust, lime scale), biodegradable various to phosphates.

  • Water Remedy: pH adjustment, chelation of steel ions to forestall scaling/corrosion.

  • Different: Textile processing (dyeing, printing), pictures, oilfield chemical substances, concrete setting retardant.

8. High quality Management (QC): Dedication to Excellence

At Shaanxi Zhonghong, QC is paramount. Our built-in QC system ensures constant, premium citric acid:

  • Vérification des matières premières crues : Strict protocols for incoming carbohydrate sources and different inputs, together with id, purity, and contaminant testing.

  • In-Course of Controls: Actual-time monitoring of crucial fermentation parameters (pH, dissolved oxygen, temperature, sugar focus) and purification steps. Automated methods set off alerts for deviations.

  • Analyses supérieures : Our ISO 17025 accredited lab makes use of HPLC-UV/ELSD/RID for exact quantification and impurity profiling, ICP-MS/OES for hint heavy metals, GC-MS/MS/LC-MS/MS for pesticide residues, validated microbiological strategies (ISO requirements), Titrage Karl Fischer pour l'humidité, et Titrage potentiométrique pour l'analyse. FTIR et RMN verify structural id.

  • Recherche sur la stabilité : Ongoing research beneath ICH tips to ascertain shelf life and storage suggestions.

  • Documentation et traçabilité : Complete batch information and digital knowledge administration guarantee full traceability from uncooked materials to completed product.

  • Conformité: Adherence to cGMP, HACCP, ISO 9001, and related pharmacopoeial/meals security rules (FDA, EFSA).

9. Emballage et logistique

  • Conditionnement: Provided in numerous codecs to go well with buyer wants: 25kg multi-layer kraft paper baggage with polyethylene liner (normal), 1000kg bulk baggage (FIBCs), or customized packaging upon request. All packaging ensures product integrity, moisture safety, and meets worldwide transport rules (IMDG, IATA).

  • Logistique: Leveraging our international community, we offer environment friendly, dependable logistics options by way of sea, air, or land freight. Experience in dealing with customs clearance and documentation for seamless worldwide supply.

10. Well being Efficacy, Functions & Analysis Frontiers

  • Mécanismes de bien-être : Past its position within the Krebs cycle, analysis explores citric acid’s potential in modulating irritation, enhancing mineral solubility within the intestine, and its position in bone well being (by way of citrate in apatite). Its urinary alkalinization mechanism includes metabolism to bicarbonate.

  • Innovation industrielle : Focus areas embody optimizing fermentation strains (A. niger engineering) for greater yields and lowered byproducts, growing novel purification methods (e.g., membrane filtration, steady chromatography) for sustainability, and exploring new functions in inexperienced chemistry (biodegradable chelators, catalyst synthesis).

  • Analysis Challenges: Key challenges embody decreasing the environmental footprint of manufacturing (water/vitality use, waste streams), enhancing cost-effectiveness for bulk functions, and absolutely elucidating its therapeutic potential at supra-dietary doses in particular situations.

11. FAQ sur l'acide citrique

  • Q: Is citric acid pure? A: Sure, it happens naturally in citrus fruits. Most business citric acid is produced by way of microbial fermentation, a pure course of, utilizing plant-derived carbohydrates.

  • Q: Is citric acid protected? A: Sure, citric acid is GRAS (Typically Acknowledged As Protected) by the FDA and authorised globally to be used in meals, prescription drugs, and cosmetics when used appropriately.

  • Q : L’acide citrique peut-il expirer ? A: When saved correctly (cool, dry place in sealed containers), high-purity citric acid is extraordinarily secure. It could take up moisture over very lengthy intervals however stays functionally efficient. Shelf life is usually 3-5 years.

  • Q: Does citric acid kill micro organism? A: Whereas acidic situations can inhibit some microbial progress, citric acid is primarily a preservative rehausseur via chelation and pH discount. It really works synergistically with different preservatives (e.g., in meals and cosmetics).

  • Q: Can I exploit citric acid for cleansing? A: Completely! It is extremely efficient as a descaling agent for kettles, espresso makers, showerheads, and eradicating onerous water stains. Dilute 1-2 tablespoons per cup of heat water.

  • Q: How does citric acid profit pores and skin? A: As an AHA, it gently exfoliates useless pores and skin cells, improves texture and radiance, helps fade darkish spots, adjusts pH to help the pores and skin barrier, and acts as an antioxidant.

12. The place to Purchase Excessive-Purity Citric Acid?

Supply premium, high-purity (>99.5%) Citric Acid instantly from the producer:

13. Conclusion

Citric acid is an indispensable, multi-functional compound with profound significance throughout organic methods and huge industrial functions. From energizing mobile metabolism to preserving meals, enhancing cosmetics, and powering eco-friendly cleaners, its versatility is unmatched. Shaanxi Zhonghong Investment Technology Co., Ltd. delivers citric acid of outstanding purity and consistency, backed by superior fermentation expertise, rigorous high quality management exceeding business requirements, and 28 years of experience in bioactive compounds. We’re dedicated to offering tailor-made, dependable options for international companions in prescription drugs, meals, cosmetics, and past. Contact us in the present day in your citric acid necessities.

14. Références

  1. PubChem Compound Abstract: Citric Acid. Nationwide Library of Drugs. https://pubchem.ncbi.nlm.nih.gov/compound/Citric-acid

  2. Meals and Agriculture Group (FAO). Citric Acid. JECFA Monographs. https://www.fao.org/

  3. U.S. Meals & Drug Administration (FDA). SCOGS Database: Citric Acid. https://www.fda.gov/

  4. European Meals Security Authority (EFSA). Re-evaluation of citric acid (E 330)… EFSA Journal.

  5. Soccol, C. R., et al. (2006). Citric acid manufacturing. Meals Expertise and Biotechnology.

  6. Beauty Ingredient Evaluate (CIR). Security Evaluation of Citric Acid… Worldwide Journal of Toxicology.

  7. Max, B., et al. (2010). Citric acid manufacturing. Latest Patents on Biotechnology.

  8. Related Pharmacopoeias: United States Pharmacopeia (USP), European Pharmacopoeia (Ph. Eur.), British Pharmacopoeia (BP), Meals Chemical substances Codex (FCC).

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