Product Description
Explore the world of our High-Purity Malic Acid, meticulously crafted to enhance the flavors of food and beverages, while meeting the highest standards of quality.
Basic Information
- Chemical Name: 2-Hydroxybutanedioic acid, a key component celebrated for its versatile applications in the food industry.
- Molecular Formula: C4H6O5
- Molecular Weight: 134.09
- CAS Number: 97-67-6, the standard reference for this essential ingredient synonymous with purity and performance.
Properties
- Appearance: Presented as colorless or slightly yellow crystals or powder, malic acid ensures impeccable integration into various formulations.
- Odor: Absolutely odorless, it exudes a sharp yet delightful sour taste, ensuring a refined taste experience.
- Melting Point: 128-131°C, showcasing its stability and effectiveness under diverse conditions.
- Solubility: Exhibits high solubility in water, with slight solubility in alcohol and ether. Its hygroscopic nature demands careful storage to prevent moisture absorption. Enjoy a pH level of approximately 2.4 in a 10% aqueous solution.
- Sour Taste Characteristics: Revel in its mild and enduring sourness, an exquisite addition to elevate the taste profile of foods.
Production Methods
- Hydration Method: Initiated by the hydration of maleic anhydride to maleic acid, followed by a subsequent hydration that yields premium malic acid.
- Furfural and Hydrogen Peroxide Synthesis Method: Employing furfural as the core material, it's transformed into DL-malic acid through the innovative use of hydrogen peroxide and ultrasonic waves, also producing fumaric acid.
- β-Lactone Hydrolysis Method: β-Lactone serves as the starting material, undergoing hydrolysis at 70°C for 0.5 hours, and treated with alkali to achieve a 50% malic acid solution. Ion-exchange resin separation followed by crystallization in an acetic acid-benzene mix yields high-quality DL-malic acid.
- Fermentation Method: Offers versatility with direct fermentation using sugary materials or a two-step mixed-strain fermentation. Utilizing starch, glucose, and more, the process engages Brevibacterium flavum and Aspergillus flavus, achieving a sugar conversion rate of 30%-86%. The crystallized product boasts a purity exceeding 98%.
Applications
- Food Industry
- Acidity Regulator: Masterfully adjusts food acidity to achieve the perfect sour taste, widely favored in beverages like carbonated drinks and fruit juices, as well as candies, baked goods, jams, and jellies. When combined with citric acid, it replicates the natural sour taste of fruits, crafting a taste that is authentic, balanced, and richly nuanced.
- Preservative: Effectively inhibits microbial growth, significantly prolonging the freshness and shelf life of food products.
- Gel-forming Function: In synergy with specific pectin and sugar quantities, it facilitates the formation of gels, instrumental in the creation of fruit cakes, delectable jellies, gelled jams, and fruit purees.
- Flour - Strengthening Agent: Enhance and elevate your baking experience with our flour-strengthening agent! This agent boosts the number of disulfide bonds in gluten proteins, expanding and interlinking protein molecules to form an impressive large-molecule network structure. It significantly enhances the dough's gas-holding capacity, elasticity, and toughness. Additionally, it acts as a safeguard against proteases decomposing the flour's proteins, offers a bleaching effect, and improves the protein binding effect for a superior baking outcome.
- Medical Field: Our product actively participates in human metabolism and serves as an energy booster. It holds potential therapeutic benefits for liver diseases and other ailments, and also plays a crucial role as an excipient in various pharmaceutical formulations.
- Cosmetics Field: Embrace the beauty benefits of our mild fruit acid, perfect for cosmetic applications. It facilitates gentle exfoliation and invigorates skin metabolism, enhancing skin texture to achieve a smoother, more refined complexion.
- Chemical Industry: Our versatile product is a powerhouse in the chemical industry, finding applications in metal cleaners, buffers, and dyeing auxiliaries within the textile sector. It also serves as a prime raw material for fluorescent whitening agents and a complexing agent in chemical electroplating processes.
Quality Standards
- Sensory Requirements: The product typically appears as a white or off-white crystalline powder or granules, characterized by a distinct sour taste.
- Physical and Chemical Indicators: Our product meets rigorous standards across various fields. Specific requirements for malic acid's purity, specific rotation, and trace elements like arsenic and lead are meticulously met. For example, food-grade malic acid mandates that arsenic levels are ≤ 2mg/kg, lead levels are ≤ 2mg/kg, and residue on ignition is ≤ 0.1%, ensuring top-tier safety and quality.
Packaging and Storage
- Packaging: Our product is securely packaged, commonly in 25-kg paper bags, ensuring protection and ease of handling.
- Storage: Store our product in a dark, dust-free, and dry environment. Its strong hygroscopic nature requires careful moisture-proof precautions. Your product's quality is assured with a shelf life of up to 24 months.
Company Profile
Our Advantages
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