High-purity APIs, extracts, and active compounds sourced, manufactured, and standardized in our state-of-the-art facilities.
Garlic oil, derived via steam distillation or advanced supercritical carbon dioxide extraction from the bulbs of Allium sativum, is recognized as a vital bioactive agent across the pharmaceutical, functional food, agronomic, and livestock sectors. Within this essential volatile compound lies a complex mixture of organosulfur molecules, primarily diallyl disulfide (DADS), diallyl trisulfide (DATS), and allyl methyl trisulfide. These compounds originate from the enzymatic conversion of alliin to allicin by alliinase when garlic cloves are mechanically disrupted. Because allicin is highly unstable and thermolabile, it quickly degrades into these oil-soluble allyl sulfides, which confer the robust antimicrobial, antifungal, cardiovascular-supporting, and antioxidant properties characteristic of premium garlic oil.
From a global procurement standpoint, the demand for high-quality, standardized garlic oil has surged. Global agricultural shifts away from chemical synthetic pesticides have positioned garlic oil as a potent, clean-label biopesticide and crop-protection agent due to its natural repellent and insecticidal properties. Concurrently, the animal nutrition sector is increasingly utilizing garlic oil as an alternative to growth-promoting antibiotics (AGPs). Phytogenic feed additives containing standardized organosulfur complexes have been shown to enhance gut microbiota, boost immunity, and optimize feed conversion ratios (FCR) in poultry, swine, and aquaculture. In human nutrition, the formulation of softgels targeting cardiovascular wellness and immune support continues to expand, mandating strict compliance with international chemical purity and trace-element safety benchmarks.
To guarantee batch-to-batch consistency and high efficacy, we employ advanced gas chromatography-mass spectrometry (GC-MS) to monitor the active organosulfur distribution.
| Analytical Parameter | Acceptance Criteria | Testing Method | Industrial Relevance |
|---|---|---|---|
| Appearance | Clear, pale yellow to reddish-orange liquid | Visual Inspection | Confirms absence of oxidation & particulate contamination |
| Active Assay (DADS + DATS) | ≥ 50% / ≥ 60% / Standardized custom blends | GC-MS / GC-FID | Direct indicator of antimicrobial and metabolic potency |
| Specific Gravity (20°C) | 1.050 – 1.095 g/cm³ | USP <841> Pycnometer | Purity control against adulterant carrier oils |
| Refractive Index (20°C) | 1.550 – 1.580 | USP <831> Refractometry | Confirms chemical identity of volatile terpene/sulfur fraction |
| Heavy Metals (Pb, As, Cd, Hg) | Pb ≤ 1.0 ppm, As ≤ 0.5 ppm, Cd ≤ 0.1 ppm | ICP-MS | Meets strict USP, EP, and FDA compliance thresholds |
| Pesticide Residues | Conforms to EU 396/2005 & USP standards | LC-MS/MS | Critical for agricultural export compliance and food safety |
Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB) is a leading Chinese manufacturer and exporter of premium herbal extracts, functional ingredients, and plant derivatives, boasting over 20 years of manufacturing excellence. Guided by scientific rigor and technological innovation, we integrate robust research and development, pilot-scale production, and international logistics into a seamless B2B global supply system.
TRB operates three modern manufacturing plants equipped with advanced processing technologies. These facilities include a dedicated herbal extract plant, a state-of-the-art bee products facility, and a specialized animal extract facility. Our operations are fully certified under rigorous international standards, including GMP, ISO, HACCP, ORGANIC, FDA, HALAL, and KOSHER.
Overcoming quality fluctuations and compliance risks with TRB’s vertically integrated industrial solution.
Many low-cost suppliers dilute pure garlic oil with synthetic solvent bases or vegetable oils. TRB ensures pure, unadulterated distillate through rigorous gas chromatography verification, guaranteeing that the organosulfur fingerprint matches authentic Allium sativum.
Due to intensive garlic farming, pesticide contamination is a significant challenge. By sourcing raw garlic from strictly monitored GAP (Good Agricultural Practices) plantations and utilizing steam distillation, we eliminate pesticide carryovers and prevent organic solvent traces.
Garlic oil is highly volatile and has a strong, persistent odor that can complicate formulation work. TRB offers microencapsulation technologies and specialized carrier systems (such as cyclodextrin complexes) that stabilize the active compounds while masking the intense aroma.
Delivering standardized botanical actives to major markets worldwide.
TRB has dedicated decades to researching and manufacturing high-efficacy botanical extracts, functional sweeteners, nootropics, and premium fruit and vegetable powders. In recent years, we have expanded our research in brain health, anti-aging, and longevity, creating advanced botanical lines that have earned critical acclaim across our customer network.
With a distribution network reaching over 60 countries, TRB has established a highly responsive international supply chain. Our logistics infrastructure ensures compliance with import, custom, and botanical clearance regulations across Europe, North America, Southeast Asia, and Latin America.
Continuous R&D investments driving bio-availability, chemical stability, and application efficiency.
By replacing standard thermal steam distillation with low-temperature supercritical CO2 extraction, we preserve fragile sulfur compounds from thermal degradation. This achieves a product with higher biological activity, superior aroma profiles, and zero organic solvent exposure.
Using spray-drying and fluid-bed coating techniques, we encapsulate volatile organosulfur compounds in food-grade biopolymer matrices (e.g., gum arabic, maltodextrins). This protects allicin conversion derivatives from stomach acid, ensuring targeted release in the intestinal tract.
Combining automated AI blending systems with analytical monitoring, we create custom combinations of garlic oil and other plant extracts (e.g., oregano, thyme oil). These botanical blends exhibit enhanced synergistic antimicrobial profiles, ideal for veterinary and agricultural biopesticide formulations.
Direct and technical answers to key questions from procurement heads and formulation chemists.
Our garlic oil is standardized based on its total active organosulfur compound profile, focusing specifically on Diallyl Disulfide (DADS) and Diallyl Trisulfide (DATS). Our standard grade features ≥50% total diallyl sulfides. We also manufacture custom concentrations up to ≥65% for highly specialized pharmaceutical and agricultural applications. Every batch is verified via Gas Chromatography (GC-FID/GC-MS) to ensure consistent bioactive efficacy.
Adulteration is a common challenge in the botanical oil industry. TRB addresses this by using carbon isotope ratio analysis (CIRA) and GC-MS fingerprinting. This allows us to verify that the organosulfur compound ratio matches the botanical source (Allium sativum) and confirm the absence of synthetic oil-soluble carriers, plasticizers, or mineral oils.
We primarily utilize advanced steam distillation for high-yield applications and Supercritical CO2 Fluid Extraction for heat-sensitive, high-purity formulations. Supercritical extraction operates at low temperatures, preserving volatile organosulfur compounds and ensuring the finished oil is solvent-free and of premium quality.
Our manufacturing facilities comply with rigorous international food safety and quality management standards. Our certifications include GMP, ISO, HACCP, ORGANIC, FDA registered facility status, HALAL, and KOSHER. These credentials ensure that our products meet the entry and regulatory requirements of the US, EU, and Asia-Pacific markets.
Our standard B2B packaging for liquid oils includes 25 kg fluorinated HDPE drums, 50 kg drums, and 200 kg steel drums. We can also accommodate customized packaging requests. Our standard MOQ is 25 kg, but we can offer smaller samples for testing and regulatory validation during the qualification process.
We source raw garlic from GAP (Good Agricultural Practices) farms that use controlled fertilization and pest-management systems. Every batch of harvested raw material undergoes testing, and the finished oil is analyzed using ICP-MS for heavy metals and LC-MS/MS for pesticide residues. This process ensures full compliance with EU Regulation 396/2005 and USP safety standards.
Providing pure chemical profiles and reliable supply chains to support global formulations.
Fax: 86-25-52867040
