Skip to content

🥗 Functional Food Peptide Profiles

Functional food peptides represent a core segment of China's health supplement and wellness industry, with collagen peptides as the dominant category and plant-derived functional peptides rising rapidly. This chapter analyzes mainstream functional food peptides across four dimensions: source, molecular characteristics, health benefits, and regulatory status.

1. Major Functional Food Peptide Profiles

Collagen Peptide

Attribute Details
Source Bovine bone, bovine hide, fish scale, fish skin (mainly tilapia and cod)
Molecular Weight 1,000–5,000 Da (mainly dipeptide/tripeptide: Gly-Pro-Hyp is the optimal absorption fragment)
Extraction Process Enzymatic hydrolysis (alkaline protease/trypsin) → ultrafiltration → spray drying
Bioavailability High (dipeptides/tripeptides directly absorbed via PEPT1/PEPT2 transporters)
Key Health Claims Improves skin elasticity/hydration, reduces joint pain, promotes bone health, improves nail strength
Typical Daily Dosage 2.5–10 g/day (skin); 5–15 g/day (bone/joint)
China Market (2024) ~¥38B (end-user retail); ¥65–80/kg (raw material)

Soy Peptide

Attribute Details
Source Enzymatic hydrolysis of soy protein isolate
Molecular Weight <1,000 Da (mainly dipeptides/tripeptides)
Extraction Process Alkaline protease + complex flavor enzyme → purification
Bioavailability Very high (nearly complete absorption)
Key Health Claims Rapid nitrogen supplementation, anti-fatigue, cholesterol reduction, immune improvement
Typical Daily Dosage 5–20 g/day
China Market (2024) ~¥6.5B (end-user); ¥45–80/kg (raw material)

Corn Peptide

Attribute Details
Source Enzymatic hydrolysis of corn gluten meal
Molecular Weight 200–1,000 Da (leucine/alanine/proline enriched)
Extraction Process Alkaline protease hydrolysis → decolorization/deodorization → ultrafiltration → concentration
Bioavailability High (rapid absorption due to small molecular size)
Key Health Claims Alcohol metabolism support/liver protection (accelerates ethanol metabolism), anti-fatigue, blood pressure reduction, antioxidant
Typical Daily Dosage 3–10 g/day (liver protection/alcohol metabolism)
China Market (2024) ~¥2.5B (end-user); ¥35–60/kg (raw material)

Wheat Peptide

Attribute Details
Source Enzymatic hydrolysis of wheat gluten
Molecular Weight 500–2,000 Da (rich in glutamine/proline)
Extraction Process Enzymatic hydrolysis (alkaline protease/papain) → membrane separation → spray drying
Bioavailability Medium–High
Key Health Claims Improves gut health (glutamine promotes intestinal cell repair), enhances immunity, antioxidant, sports recovery
Typical Daily Dosage 5–15 g/day
China Market (2024) ~¥1.5B (end-user); ¥40–70/kg (raw material)

Pea Peptide

Attribute Details
Source Enzymatic hydrolysis of yellow pea protein
Molecular Weight <1,000 Da
Extraction Process Complex enzymatic hydrolysis (neutral protease + pancreatin) → ultrafiltration → purification
Bioavailability High
Key Health Claims High-quality plant protein supplementation, enhanced muscle synthesis (rich in branched-chain amino acids BCAA), low allergenicity (lactose/gluten-free)
Typical Daily Dosage 5–20 g/day
China Market (2024) ~¥1B (end-user, rapidly growing); ¥50–90/kg (raw material)

2. Ingredient Comparison Table

Parameter Collagen Peptide Soy Peptide Corn Peptide Wheat Peptide Pea Peptide
Source Animal (bone/hide/scale) Soybean Corn Wheat Pea
MW Range (Da) 1,000–5,000 <1,000 200–1,000 500–2,000 <1,000
Protein Content >90% >85% >80% >80% >85%
Solubility Excellent (hot/cold water) Excellent Good (pH adjustment needed) Good Excellent
Bitterness Low Medium Medium–High Medium Low–Medium
Absorption Rate Medium–Fast Fast Fast Medium Fast
Allergen Risk Medium (fish allergy) High (soy allergy) Low High (gluten allergy) Very Low
Vegan Friendly ❌ ✅ ✅ ✅ ✅
Raw Material Price ($/kg) 9–15 6–12 5–9 6–10 7–13

3. Regulatory & Health Claim Restrictions

China Health Food Regulation

According to the Food Safety Law and GB 16740 Health Food standards, functional food peptide claims in China are regulated as follows:

  1. Health Food Registration/Filing: Claims for specific functions (e.g., immune enhancement, liver protection) require a health food approval certificate or filing credential
  2. General Food: Only nutritional content claims are permitted; disease prevention or treatment functions may not be referenced
  3. Approved Peptide Sources: Those listed in the new food ingredient / food-and-medicine-homologous catalog include: collagen peptide, soy peptide, corn peptide, wheat oligopeptide, pea peptide, etc.
  4. Peptide-Related GB Standards: GB 31645 (collagen peptide), QB/T 5732 (soy peptide powder), etc.
  5. Daily Dosage Limits: Non-mandatory, but based on safety assessment results (generally not exceeding 20 g/day)
Trend Description Growth Impact
Functional Upgrading of Collagen Peptides Targeted enzymatic hydrolysis produces active fragments (e.g., Gly-Pro-Hyp content increased to 15%+) ⬆️
Plant-Based Substitution Wave Pea peptide/hemp seed peptide replacing animal-derived protein peptides ⬆️⬆️
Sports Nutrition Specialization BCAA peptides + glutamine peptides enhance sports recovery ⬆️
Precision Nutrition Customization Personalized peptide formulations based on gut microbiota and biomarkers ⬆️
Raw Material Price Decline Enzymatic technology and large-scale production reducing costs 5–8%/year ➡️

Data Sources: China Health Food Industry Association, Food & Beverage Industry Reports, Grand View Research. The above dosages and recommendations are general references; product development should be based on local regulations in the target market. For functional food peptide raw material quality testing, formulation R&D, or health food registration support — contact SENO Biotechnology for professional services.