What is L-5-MTHF Calcium Powder?
L-5-MTHF Calcium Powder is the calcium salt form of L-5-methyltetrahydrofolate (Folate), which is typically used in the formulation of food, beverage, and nutraceutical products on an industrial scale. It is designed to be utilised as an active source of folate that can be easily added to multi-ingredient systems and, therefore, is appropriate for ingredient supply chains with consistent quality and efficient processing. It is normally made by controlled synthesis and crystallization to have a consistent chemical identity, particle morphology, and assay. The calcium salt structure not only provides solid-state stability but also enhances the processing properties during downstream processing, including blending, pre-mixing, and dry granulation. This is of special importance to manufacturers that need reliable processing in a high-volume production line. Furthermore, its standardized specification profile helps to ensure uniformity throughout each batch, a key consideration for contract manufacturers and product developers of branded products dealing with global supply chains. It is commonly used as a functional folate ingredient in food systems, beverages, and nutrition premixes in applications. It works well in single-component as well as multi-component matrix systems, providing formulation teams with flexibility in product architecture design.

COA
| Item | Specification | Result |
| Storage Condition | Cool, dry place, protected from light and moisture | Conforms |
| Appearance | White to off-white fine powder | Conforms |
| Odor | Odorless | Conforms |
| Solubility | Freely soluble in water | Conforms |
| Identification | HPLC matches reference standard | Conforms |
| L-5-MTHF Calcium Assay | ≥ 95.0% | 97.20% |
| Active Folate Content | ≥ 95.0% of labeled value | 99.00% |
| Particle Size (D90) | ≤ 100 μm | 85 μm |
| Loss on Drying | ≤ 5.0% | 2.10% |
| Bulk Density | 0.30 – 0.60 g/mL | 0.45 g/mL |
| pH (1% solution) | 6.5 – 8.5 | 7.2 |
| Heavy Metals | ≤ 10 ppm | < 5 ppm |
| Lead (Pb) | ||
| Arsenic (As) | ≤ 1 ppm | < 0.5 ppm |
| Mercury (Hg) | ≤ 0.1 ppm | Not detected |
| Residual Solvents | Meets USP / ICH limits | Conforms |
| Total Plate Count | ≤ 1,000 CFU/g | < 100 CFU/g |
| Yeast & Mold | ≤ 100 CFU/g | < 10 CFU/g |
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Industry Background
The global nutritional ingredient market has been constantly evolving, and L-5-Methyltetrahydrofolate Calcium Powder has its origins in the increased demand for more bioactive, formulation-ready, and industry-stabilised forms of folic acid in the global market. Manufacturing systems for food, beverages, and nutraceuticals have become more complex, while the introduction of nutrients in complex formulations has sparked an interest in their suppliers to develop new forms that can be easily incorporated with better nutrient consistency and processing reliability into the complex manufacturing workflow. In this development trend, ingredients based on L-5-methyltetrahydrofolate have become significant advanced folates that fulfil today's formulation demands. The calcium salt version was developed to overcome some important industry issues like physical stability, handling efficiency, and compatibility in large-scale manufacturing, which are more suitable for global industrial supply chains where the raw materials are required to be standardized with consistent performance. Concurrently, the growth of categories of functional foods, fortified beverage systems, and multi-ingredient premix applications has had a profound impact on the shape of the demand for vitamin inputs. The availability of active folate forms has become more common in industrial applications as consumers are becoming more interested in healthful foods and products that can be promoted in clean label terms, have fewer components and easier formulation, and are produced with less energy.
Development Process
L-5 Methyltetrahydrofolate Calcium Salt has been developed based on innovations in folate chemistry and the advancement of ingredients in the industry. Early folate forms were either chemically stable but inactive in order to provide basic storage and process usability or were chemically active but had to be converted at the time of their use in formulation, which resulted in decreased production efficiency. As nutritional science advanced, the direction of development gradually turned to forms of folate that were more active to become the form that can be easily used in manufacturing systems, L-5-methyltetrahydrofolate. In the field of food, beverage, and nutritional sciences, optimization was directed to ensure the accuracy of synthesis, ensure consistency of structure, and control the purification process for industrial supply on a scale that meets market needs. Technical issues, including moisture sensitivity, environmental exposure, and powder handling behavior, continued to be an important factor when using the product. Controlled crystallization and ion stabilization to improve stability, flowability, and processing performance without changing the active structure, with the calcium salt form. Subsequent development of particle engineering and multi-stage purification led to an improvement in the uniformity of the production batch and production reliability. Consistent specifications were obtained by implementing standardized quality control systems for large-scale manufacturing. Modern precision synthesis and controlled crystallization technologies have brought the ingredient to a stage of maturity, allowing it to be used in the stable integration of the global system of food, beverage, and nutrition formulation.

Application
1. Food fortification industry
Functional folate input is used in the manufacturing of fortified food products, where manufacturers use it to enrich the nutrient system and design the product formula.
2. Beverage manufacturing sector
Stable dispersion and compatibility in beverage formulation (water-based or ready to mix) through the application of beverage premix and liquid enrichment systems.
3. Dietary supplement manufacturing
Used in capsule, tablet, and powder blend manufacturing as a raw material used in multi-ingredient nutritional product formulations in industrial production lines.
4. Premix and blending industry
Integrated in vitamin premixes and compound ingredient systems, allowing contract manufacturers to reliably provide exact dosing and nutrients uniformity from batch to batch, across large quantities.
5. Functional food ingredient supply chain
Structured and standardized raw material inputs are used by ingredient distributors and B2B suppliers that are part of customized formulation solutions for branded food manufacturers.
6. Contract manufacturing (OEM/ODM) sector
L-5 Methyltetrahydrofolate Calcium is used extensively in an outsourced production model for product consistency and quality of ingredients, processing stability, and a range of different formats and scalable production.
Production Process

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