Product Title
Yam Peptides (Chinese Yam Oligopeptides) | Plant-Based Bioactive Peptides from Dioscorea opposita
Product Name: Yam Peptides / Yam Oligopeptides
Synonyms: Chinese Yam Peptide, Dioscorea opposita Peptide, Shan Yao Peptide, Wild Yam Peptide
Plant Source: Dried tuber of Dioscorea opposita Thunb. (family Dioscoreaceae), a traditional medicinal and edible plant
Appearance: Off-white to white powder
Extraction Process: Enzymatic Hydrolysis
Solubility: 100% water-soluble, instant dissolving
Shelf Life: 24 months
Product Overview
Yam Peptides are bioactive oligopeptides derived from the dried tuber of Chinese yam (Dioscorea opposita Thunb.) through advanced enzymatic hydrolysis technology. Also known as Chinese yam, wild yam, or Shan Yao, this plant has been used for centuries in traditional medicine and functional foods.
Through enzymatic breakdown, yam proteins are hydrolyzed into low molecular weight oligopeptides (typically below 1000 Daltons), which offer superior bioavailability and rapid absorption compared to intact proteins or free amino acids. The resulting peptides retain the full spectrum of bioactive properties inherent to the yam tuber, making them a versatile ingredient for modern formulation.
Yam peptides and proteins have been shown to possess a wide range of pharmacological activities, including immunomodulatory, antioxidant, estrogen-stimulating, osteogenic, angiotensin I-converting enzyme (ACE) inhibiting, and anti-proliferative effects. They hold therapeutic potential for treating cardiovascular diseases, inflammatory conditions, aging disorders, menopause, and osteoporosis.
Our Yam Peptides are manufactured under strict quality control, with 100% water solubility and instant dissolving properties, making them easy to incorporate into a wide variety of formulations across the food, and nutraceutical industries.
Key Specifications
| Parameter |
Specification |
| Product Name |
Yam Peptides / Yam Oligopeptides |
| Botanical Source |
Dioscorea opposita Thunb. (dried tuber) |
| Appearance |
Off-white to white powder |
| Extraction Process |
Enzymatic Hydrolysis |
| Molecular Weight |
Primarily <1000 Daltons (oligopeptide range) |
| Solubility |
100% water-soluble, instant dissolving |
| Loss on Drying |
≤5% |
| Ash Content |
<5% |
| Total Plate Count |
<1000 CFU/g |
| E. coli |
Not detected |
| Pesticide Residue |
<2 PPM |
| Packaging |
1kg/aluminum foil bag (sample); 25kg/fiber drum (bulk) |
| Storage |
Sealed, protected from light, stored in a cool, dry, well-ventilated place |
| Shelf Life |
24 months |
Mechanism of Action & Bioactivities
Yam Peptides exert their biological effects through multiple pathways:
1. Antioxidant Activity
Yam-derived peptides, particularly those containing thiol groups, exhibit strong radical scavenging activities
Protect cells from oxidative stress and prevent glycation damage
Help combat premature aging at the cellular level
2. Immunomodulatory Effects
Enhance macrophage phagocytosis and splenocyte proliferation
Regulate secretion of cytokines and immune-related enzymes
Support natural killer (NK) cell activity
Studies have demonstrated significant immunomodulatory effects in immunocompromised models
3. Skin Anti-Aging & Collagen Support
Boost collagen generation and improve skin oxidation resistance
Even skin tone and firm fine lines
Provide skin-plumping hydration
Support skin elasticity and firmness
Combat multiple signs of aging
4. Metabolic & Cardiovascular Support
ACE inhibitory activity supports healthy blood pressure
Helps maintain healthy blood glucose levels
Promotes intestinal health
5. Hormonal & Bone Health
Estrogen-stimulating activities
Osteogenic (bone-building) potential
Therapeutic potential for menopause and osteoporosis
Key Benefits
| Application Area |
Key Benefits |
| Functional Foods |
Immune support, antioxidant defense, metabolic balance, gut health |
| Dietary Supplements / Nutraceuticals |
Immunomodulation, cardiovascular support, bone health, anti-aging |
| Sports Nutrition |
Rapidly absorbed plant-based protein peptides for recovery |
| Beverages |
Instant dissolving, clear solution – ideal for ready-to-drink formulations |
Due to its excellent water solubility and instant dissolving characteristics, Yam Peptides can be seamlessly incorporated into serums, creams, masks, functional beverages, protein powders, capsules, and tablets without compromising formulation stability.
Application Scenarios
| Application |
Recommended Use |
Product Forms |
| Functional beverages |
0.5% – 2.0% |
RTD drinks, powders |
| Dietary supplement capsules/tablets |
100 – 500 mg/day |
Capsules, tablets, sachets |
| Sports nutrition products |
1.0% – 5.0% |
Protein powders, recovery drinks |
| Health food formulations |
As required |
Various food matrices |
Why Choose Our Yam Peptides?
✅ Premium Botanical Source – Sourced from high-quality Dioscorea opposita Thunb. tubers
✅ Enzymatic Hydrolysis – Advanced processing preserves bioactivity and ensures consistent quality
✅ Low Molecular Weight – Primarily <1000 Daltons for superior absorption and bioavailability
✅ 100% Water-Soluble – Instant dissolving, clear solution, no precipitation
✅ Versatile Applications – Suitable for cosmetics, functional foods, beverages, and dietary supplements
✅ Clean Label – No artificial additives, naturally derived
✅ Strict Quality Control – Comprehensive testing for purity, microbiology, and pesticide residues
Packaging & Storage
| Packaging Option |
Specification |
| Sample Package |
1kg / aluminum foil bag |
| Bulk Package |
25-25kg / drum |
| Custom Packaging |
Available upon request |
Storage Conditions: Keep sealed, protected from light, and store in a cool, dry, well-ventilated place.
Shelf Life: 24 months from date of manufacture when stored properly.
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