Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of nicotinamide riboside tablets in China. Welcome to wholesale bulk high quality nicotinamide riboside tablets for sale here from our factory. Good service and reasonable price are available.
Nicotinamide Riboside Tablets are a dietary supplement primarily composed of nicotinamide riboside (NR), aimed at increasing levels of nicotinamide adenine dinucleotide (NAD+) in the body by supplementing NR, thereby exerting various potential health benefits. It is converted into NAD+through a series of biochemical reactions in the body, and NAD+is a key coenzyme for cellular energy metabolism (such as tricarboxylic acid cycle, oxidative phosphorylation) and DNA repair. As age increases, NAD+levels naturally decrease, and supplementing with NR may help restore their levels. It can participate in mitochondrial function, supplementing NR may help improve energy production efficiency, alleviate fatigue, and enhance exercise endurance.
At the same time, our company not only provides pure powders, but also tablets and injections. If needed, please feel free to contact us at any time.
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Nicotinamide Riboside Chloride COA
Nicotinamide Riboside Tablets, as an emerging dietary supplement, have a core component called Nicotinamide Riboside (NR), which is a derivative of vitamin B3. It has been widely studied to increase the level of nicotinamide adenine dinucleotide (NAD+) in the body, thereby supporting health functions such as anti-aging, energy metabolism, and neuroprotection.
Raw material sources and quality control
Synthesis pathway of nicotinamide ribose (NR)
The manufacturing of NR mainly relies on chemical synthesis or biological fermentation technology, among which chemical synthesis method has become mainstream due to its low cost and controllable purity.
Chemical synthesis method
Starting materials: Usually starting from niacinamide or ribose, NR molecular structure is constructed through multiple reactions. Key steps: Convert ribose into active intermediates (such as ribose-1-phosphate), protect hydroxyl groups through phosphorylation or acylation reactions, and prevent side reactions. Connect the activated ribose with nicotinamide through a condensation reaction to form an NR skeleton. After removing the protective group, NR is purified by crystallization, chromatographic separation and other techniques to ensure that the final product purity is ≥ 98%. The advantage lies in mature technology, suitable for large-scale production; The yield can be improved by optimizing reaction conditions such as temperature and catalyst.
Biological fermentation method
Microbial engineering is the use of genetically modified yeast or bacteria (such as Escherichia coli) to express NR synthesis related enzymes and produce NR through fermentation metabolism. The fermentation product may contain impurities (such as other nucleoside substances) and requires complex purification steps; At present, the cost is relatively high and it has not completely replaced chemical synthesis.
Raw material standards
Purity: ≥ 98% (detected by HPLC).
Heavy metals: The content of lead, arsenic, and cadmium must comply with USP (United States Pharmacopeia) or EP (European Pharmacopoeia) limits.
Microbial limit: Total colony count ≤ 1000 CFU/g, no pathogenic bacteria (such as Escherichia coli and Salmonella).
Residual solvents: The residual organic solvents such as ethanol and methanol must be below the threshold specified by the International Conference on Harmonisation of Pharmaceutical Products for Human Use (ICH).
Accessory selection
Niacinamide ribose tablets usually require the addition of excipients to improve stability, taste, and tablet performance:
Fillers: Microcrystalline cellulose (MCC), lactose (lactose intolerance risk should be indicated).
Adhesive: polyvinylpyrrolidone (PVP), hydroxypropyl methylcellulose (HPMC).
Lubricant: Magnesium stearate, silicon dioxide (to prevent sticking and flushing during compression).
Coating material: Hydroxypropyl methylcellulose (HPMC) film coating, used for shading, moisture-proof or masking odors.
Production process flow
Wet granulation and compression method (mainstream process)
1
Raw material pretreatment
NR powder sieving: Ensure uniform particle size (usually 60-80 mesh) to avoid delamination during compression.
Auxiliary material mixing: Weigh MCC, PVP and other auxiliary materials according to the formula ratio, and pre mix them with NR in a V-type mixer for 10-15 minutes.
2
Wet granulation
Preparation of Adhesive Solution: Dissolve PVP in purified water or ethanol water mixed solvent, typically at a concentration of 5% -10%.
Granulation: Slowly add the adhesive solution to the mixed powder and form wet particles through a high-speed stirring granulator (such as Fette Compacting).
Drying: Wet particles are dried using a fluidized bed dryer (such as Glatt) at 50-60 ℃ until the moisture content is ≤ 3%.
3
Whole granules and total mixing
Whole granule: The dried granules are sieved through a swing granulator (such as Fitzpatrick) to remove large chunks or fine powder.
Total mixing: Add lubricants such as magnesium stearate and mix in a 3D mixer for 15-20 minutes to ensure uniformity.
4
Tablet pressing
Parameter setting: Adjust the tablet press pressure (usually 20-40 kN) and die size according to the tablet specifications (such as 250mg/tablet).
Quality control: Real time monitoring of chip weight differences (± 5%), hardness (50-100 N), and brittleness (≤ 1%).
5
Coating
Preparation of coating solution: Dissolve HPMC, plasticizers (such as polyethylene glycol), and pigments in organic solvents or water.
Spray coating: The coating solution is evenly sprayed onto the surface of the tablet core using an efficient coating machine (such as O'Hara), forming a thin film with a thickness of about 50-100 μ m.
Dry granulation and compression method (alternative process)
Suitable for NR raw materials that are sensitive to moisture and heat:
- Direct compression: After mixing NR with auxiliary materials, it is compressed into thin sheets using a high-pressure roller press (such as Fette), then crushed into particles and pressed into tablets.
- Advantage: Avoiding the influence of dampness and heat on NR activity, but requiring higher pressure and finer control of raw material particle size.
Quality Control System
Raw material inspection
Identity verification: Confirm the structure of NR molecules through infrared spectroscopy (IR) or nuclear magnetic resonance (NMR).
Content determination: HPLC method is used to determine the purity of NR to ensure compliance with standards.
Impurity analysis: detect potential degradation products (such as ceramide, ribose) and residual solvents.
Intermediate Control
Moisture content of wet particles: determined by Karl Fischer method to ensure the drying endpoint.
Mixing uniformity: The coefficient of variation (CV ≤ 5%) of NR content in sampling and testing.
Finished product inspection
Uniformity of Content: Randomly select 10 tablets from each batch and measure the NR content, RSD≤10%.
Dissolution rate: In simulated gastric fluid (pH 1.2) or intestinal fluid (pH 6.8), the dissolution rate should be ≥ 80% within 30 minutes.
Stability testing: Accelerated testing (40 ℃/75% RH, 6 months) and long-term testing (25 ℃/60% RH, 24 months), monitoring NR content, dissolution rate, and impurity changes.
Microbial testing
Aseptic testing: Cultivate aerobic, anaerobic, and fungal bacteria on the final product to ensure sterility.
Endotoxin testing: The LAL method is used to determine the endotoxin content, which is ≤ 0.5 EU/mg.
Manufacturing Challenges and Solutions
NR stability issues
Challenge: Nicotinamide Riboside Tablets are susceptible to light, humidity, and temperature, leading to degradation into nicotinamide or ribose.
Solution:
Optimize packaging materials (such as light resistant aluminum foil).
Add stabilizers (such as ascorbyl palmitate).
Control the humidity of the production environment (≤ 40% RH).
Difficulties in tablet pressing process
Challenge: NR has poor liquidity, which can easily lead to differences in sheet weight or sticking.
Solution: Add flow aids such as silica, adopt dry granulation or pre pressing process, and optimize the parameters of the tablet press (such as pressure and speed).
Cost optimization
Challenge: The high cost of NR raw materials affects product pricing.
Solution: Expand production scale to reduce unit costs, optimize synthesis pathways (such as enzyme catalyzed reactions), and sign long-term contracts with suppliers to stabilize raw material prices.
Vibration assisted electron transfer in mitochondrial complex I
Nicotinamide Riboside (NR) is a precursor of NAD+, and oral administration of Nicotinamide Riboside Tablets can effectively increase NAD+levels and improve mitochondrial function. Mitochondria are the "energy factories" of cells, which convert nutrients into ATP through oxidative phosphorylation (OXPHOS). Complex I acts as the entry enzyme for ETC, catalyzing the oxidation of NADH to NAD+while transferring electrons to ubiquinone (UQ) and pumping out protons to form a transmembrane proton gradient. The traditional view is that electron transfer is achieved through thermally driven quantum tunneling effects, but recent studies have found that specific vibrational modes of protein skeletons, such as low-frequency collective vibrations, can significantly reduce the activation energy of electron transfer, a phenomenon known as Vibrally Assisted Electron Transfer (VET).
Structure and Function of Mitochondrial Complex I
Complex I (EC 1.6.5.3) is the largest multi subunit protein complex (approximately 1 MDa) in the mitochondrial inner membrane, consisting of 14 core subunits (mammalian) and 34 auxiliary subunits. Its structure can be divided into three functional modules:
Peripheral Arm: located on the mitochondrial matrix side, containing NADH binding domain and flavin mononucleotide (FMN) cofactor, responsible for NADH oxidation.
Membrane Arm: Embedded in the inner membrane, containing 7-9 iron sulfur clusters (Fe-S) and ubiquinone binding sites (Q-site), responsible for electron transfer and proton pumping.
Connector Domain: Coordinate the conformational changes of hydrophilic and transmembrane arms.
Electron transfer pathway of complex I
The electron transfer of complex I follows a two-step process:
NADH oxidation: NADH transfers electrons to FMN, generating FMNH ₂ while releasing NAD+.
Iron sulfur cluster chain transfer: FMNH ₂ transfers electrons to Q-site through a series of iron sulfur clusters (N2, N3, N1a, N1b, N4, N5, N6a, N6b), ultimately reducing ubiquinone to ubiquinone (UQH ₂).
During this process, electron transfer needs to cross a distance of about 10-15 Å, and traditional tunneling theory is difficult to fully explain its efficiency, suggesting that VET may be involved.
The regulatory effect of NR supplementation on complex I VET
NR enhances the physiological effects of NAD+pool
After oral administration, NR is taken up by cells and converted into NAD+, enhancing the function of complex I through the following pathways:
Directly supplementing NAD+: Relieve NAD+depletion (such as in aging and metabolic diseases), maintain NADH/NAD+balance, and prevent the inactivation of complex I due to substrate deficiency.
Activation of SIRT1/PGC-1 α axis: NAD+- dependent deacetylase SIRT1 upregulates PGC-1 α, promoting mitochondrial biogenesis and expression of complex I subunit.
Potential impact of NR on VET
NAD+supports the activity of iron sulfur cluster synthases such as NFS1 and ISCU, reducing iron sulfur cluster loss (as observed in Friedreich ataxia) and maintaining the integrity of vibrational modes. Elevated NAD+levels may improve VET through the following mechanisms:
Upregulation of ubiquinone synthesis: NAD+- dependent SIRT3 deacetylates HMGCS2, promotes the mevalonate pathway, and increases the supply of ubiquinone precursors.
Reduce the interference of oxidative damage on VET
NAD+activates SOD2 and CAT through SIRT3, reduces ROS levels, prevents iron sulfur cluster oxidation deactivation (such as Fe-S → Fe ³ ⁺ - S) and protein skeleton carbonization, thereby protecting the vibration mode required for VET.
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