What is Plant protein hydrolysates?
Plant protein hydrolysates (PPH) are mixtures of peptides and amino acids produced by breaking down plant-derived proteins (soy, wheat, legumes) through acidic or enzymatic methods. They are widely used as savory flavor enhancers in foods (soups, sauces) and as biostimulants in agriculture to boost nutrient uptake, abiotic stress tolerance, and plant growth
Everything You Need to Know
What are the disadvantages of hydrolyzed protein?
The adverse effects of hydrolyzed protein include anxiety, asthma, attention deficit syndrome, bloating, burning sensations, carpel tunnel syndrome, chest pains, depression, diarrhea, confusion, dizziness, drowsiness, infertility, insomnia, and heart diseases (Scopp, 1991).
What are plant derived protein hydrolysates?
Plant-derived protein hydrolysates (PHs) have gained prominence as plant biostimulants because of their potential to increase the germination, productivity and quality of a wide range of horticultural and agronomic crops.
Why do dietitians say no to protein powder?
Researchers screened 134 products for 130 types of toxins and found that many protein powders contained heavy metals (lead, arsenic, cadmium, and mercury), bisphenol-A (BPA, which is used to make plastic), pesticides, or other contaminants with links to cancer and other health conditions.
What's the healthiest plant-based protein?
9 Best Plant-Based Protein Sources
Tofu. ...
Edamame. ...
Lentils. Protein per 1 cup cooked: 18 grams. ...
Chickpeas. Protein per 1 cup cooked: 15 grams. ...
Hemp Hearts. Protein per 3 tablespoons: 10 grams. ...
Soy Milk. Protein per 1 cup: 8 grams. ...
Quinoa. Protein per 1 cup cooked: 8 grams. ...
Pistachios. Protein per ¼ cup: 6 grams.
Main Details:
Production Methods: Enzymatic hydrolysis is preferred for producing specific flavor profiles (e.g., higher umami). Acid hydrolysis is generally non-specific and yields more free amino acids.
Applications in Food: Used for enhancing flavor in meat products, snacks, and ready-to-cook meals. They improve protein solubility and nutritional value in confectionery and beverages.
Agricultural Biostimulants: As fertilizers, PPHs enhance crop yield by increasing Nitrogen (N) metabolism and supporting root growth, often allowing for improved nutrient uptake in poor soil conditions.
Key Enzymes: Common enzymes used to break down plant proteins include Protease AN "Amano" and glutaminase, particularly when processing wheat gluten for high glutamic acid content.
Functionality: Beyond nutrition, they are valued for their solubility, stability in various pH levels, and foaming/emulsifying properties.
Benefits and Uses:
Improved Digestibility: PPHs offer superior protein bioavailability compared to whole proteins.
Bioactivity: Legume-based hydrolysates, in particular, have shown potential for producing bioactive peptides with antioxidant properties.
Sustainability: Enzymatic hydrolysis acts as a "green" method, offering a more controlled and environmentally friendly alternative to chemical treatment.
Functions in Plants
Nutrient Recycling: Plants use protein hydrolases to break down damaged or excess proteins, freeing up amino acids for reuse in new proteins.
Defense Mechanisms: Some plant proteases are involved in defending against pests or pathogens. For example, proteases can degrade the proteins of herbivorous insects or pathogens.
Stress Response: During stress conditions such as drought or extreme temperatures, protein hydrolases help manage protein turnover to maintain cellular functions.
ANALYTICAL RESULTS
| Test Item | Method / Ref. | Specification | Result | Conclusion |
|---|---|---|---|---|
| Identification | In-house ID / label claim | Plant Protein Hydrolase | Conforms | Pass |
| Appearance | Visual | Light yellow powder | Conforms | Pass |
| Enzyme Activity | In-house protease activity assay | NLT 5,000 U/g | 5,380 U/g | Pass |
| Solubility | Water solubility test | Dispersible / soluble in water | Conforms | Pass |
| pH (1% solution) | pH meter | 5.5 – 7.5 | 6.6 | Pass |
| Loss on Drying | Drying method | ≤ 8.0% | 4.5% | Pass |
| Total Plate Count | Plate count | ≤ 10,000 CFU/g | 1.2 × 10³ CFU/g | Pass |
| Yeast & Mold | Plate count | ≤ 100 CFU/g | < 10 CFU/g | Pass |
| Coliforms | Plate count | ≤ 30 CFU/g | < 10 CFU/g | Pass |
| E. coli | Absence test | Negative / 25 g | Not Detected | Pass |
| Salmonella | Absence test | Negative / 25 g | Not Detected | Pass |
| Lead (Pb) | ICP-MS / ICP-OES | ≤ 5.0 mg/kg | 0.22 mg/kg | Pass |
| Arsenic (As) | ICP-MS / ICP-OES | ≤ 3.0 mg/kg | 0.14 mg/kg | Pass |
Production Process
