Amino Acid Biostimulant
Manufacturer &
Supplier in China
ZXCHEM is an amino acid biostimulant manufacturer in China. Our protein hydrolysis plant makes Pepaid™ amino acid fertilizer and biostimulant ingredients: animal-derived peptides and free amino acids, plant protein hydrolysates and fermentation-derived grades.
Product range
Three Pepaid™ Series by Raw Material
Compare animal-derived enzymatic peptides, animal-derived free amino acids and plant-origin solutions. All ten models are listed below with source, complete specifications and formulation uses. Choose by crop requirements, nitrogen target and application method. See Pepaid at CAC 2026 for our crop-nutrition exhibition update.
Animal-derived enzymatic polypeptides
Pepaid™ EA Series
Enzymatically hydrolyzed animal protein with peptides in three molecular-weight ranges, from standard to ultra-low.
Animal origin · 0.5–7 kDa↔ Swipe table to see all columns
| Parameter | EA80 | EA80-LMW | EA80-uLMW |
|---|---|---|---|
| Source | Animal protein (meat proteins) | Animal protein (meat proteins) | Animal protein (meat proteins) |
| Form | Powder | Powder | Powder |
| Appearance | Yellow or brownish yellow powder | Yellow or brownish yellow powder | Yellow or brownish yellow powder |
| Solubility | Transparent in 5% aqueous solution | Transparent in 5% aqueous solution | Transparent in 5% aqueous solution |
| pH | 4–7 | 4–7 | 4–7 |
| Total nitrogen | ≥13.0% | ≥13.5% | ≥13.5% |
| α-amino nitrogen | ≥1.0% | ≥2.0% | ≥4.0% |
| Ash | ≤10% | ≤7% | ≤7% |
| Average molecular weight | 6,000–7,000 Da | 700–900 Da | 500–700 Da |
| Moisture | ≤10% | ≤10% | ≤10% |
| Heavy metals | ≤20 ppm | ≤20 ppm | ≤20 ppm |
| Free amino acids | — | ≥10% | ≥20% |
Free amino acids, total amino acids, protein and α-amino nitrogen are separate measurements. “—” means no value is listed for that model. Confirm the selected grade and batch COA before ordering.
| Model | Source / process | Recommended formulation use |
|---|---|---|
| EA80 | Animal protein (meat proteins) | Base fertilizer, soil conditioning and root-zone nutrition. |
| EA80-LMW | Animal protein (meat proteins) | Early root establishment, transplant recovery and pre-stress conditioning. |
| EA80-uLMW | Animal protein (meat proteins) | Seedling resilience and crop recovery following abiotic stress. |
Animal-derived free amino acids
Pepaid™ HA Series
Deep hydrolysis of animal protein for high free amino acid content, in powder and liquid form.
Powder + liquid · 4 models↔ Swipe table to see all columns
| Parameter | HA80 | HA40 | HA20-LLC | HA20L |
|---|---|---|---|---|
| Source | Animal protein (meat proteins) | Animal protein (hair and feathers) | Animal protein (hair and feathers) | Animal protein (hair and feathers) |
| Form | Powder | Powder | Liquid | Liquid |
| Appearance | Yellow or brownish yellow powder | Yellow or brownish yellow powder | Red transparent liquid | Reddish brown liquid |
| Solubility | Transparent in 5% aqueous solution | Transparent in 5% aqueous solution | 100% soluble in 5% aqueous solution | 100% soluble in 5% aqueous solution |
| pH | 3.5–5.5 | 4–7 | 4.5–5.5 | 4.0–6.0 |
| Free amino acids | ≥75% | ≥40% | — | — |
| Total nitrogen | ≥13.5% | ≥17.5% | ≥3.5% | ≥8.5% |
| Moisture | ≤5% | ≤5% | — | — |
| Chloride | ≤3% | ≤30% | ≤1.5% | ≤15% |
| Total amino acids | — | — | ≥22% | ≥18% |
| Amino acid nitrogen | — | — | ≥3.0% | ≥3.0% |
| Specific gravity | — | — | ≥1.11 | ≥1.15 |
Free amino acids, total amino acids, protein and α-amino nitrogen are separate measurements. “—” means no value is listed for that model. Confirm the selected grade and batch COA before ordering.
| Model | Source / process | Recommended formulation use |
|---|---|---|
| HA80 | Animal protein (meat proteins) | Foliar nutrition for high-value crops, nutrient deficiency correction and NPK blending. |
| HA40 | Animal protein (hair and feathers) | Compound fertilizer blending and maintenance programs for chloride-tolerant crops. |
| HA20-LLC | Animal protein (hair and feathers) | Drip irrigation and fertigation for chloride-sensitive crops. |
| HA20L | Animal protein (hair and feathers) | Root irrigation, fertigation and soluble liquid crop-nutrition formulations. |
Plant-derived protein hydrolysates & fermentation
Pepaid™ Plant-Based Series
Corn and soybean protein hydrolysates plus a corn fermentation grade, grouped for plant-origin crop nutrition, root vitality and soil-health formulations.
Corn & soybean · 3 models↔ Swipe table to see all columns
| Parameter | EP60 | EP60P | FP90 |
|---|---|---|---|
| Source | Corn protein · enzymatic hydrolysis | Soybean protein · enzymatic hydrolysis | Corn · fermentation-derived |
| Form | Powder | Powder | Powder |
| Appearance | Yellow or brownish yellow powder | Yellow or brownish yellow powder | Yellow powder |
| Solubility | Completely soluble in water | Transparent in 5% aqueous solution | 100% soluble |
| pH | 3.5–5.5 | 4.5–7.5 | 4–6 |
| Protein | ≥60% | ≥60% | ≥85% |
| Total nitrogen | ≥8.5% | ≥8.5% | ≥14% |
| α-amino nitrogen | ≥1.5% | ≥1.5% | — |
| Loss on drying | ≤10% | ≤10% | — |
| Ash | ≤15% | ≤15% | — |
| Total plate count | — | ≤50,000 cfu/g | — |
| Coliform bacteria | — | ≤0.3 MPN/g | — |
| Pathogens | — | Negative | — |
| Staphylococcus aureus | — | Negative | — |
| E. coli | — | Negative | — |
| Free amino acids | — | — | ≥90% |
| Water insoluble matter | — | — | ≤0.1% |
| Moisture | — | — | ≤3.0% |
Free amino acids, total amino acids, protein and α-amino nitrogen are separate measurements. “—” means no value is listed for that model. Confirm the selected grade and batch COA before ordering.
| Model | Source / process | Recommended formulation use |
|---|---|---|
| EP60 | Corn protein · enzymatic hydrolysis | Plant-origin nutrition, leaf greenness and root-development programs under saline-alkali stress. |
| EP60P | Soybean protein · enzymatic hydrolysis | Root establishment, transplanting and flowering / fruit-setting programs. |
| FP90 | Corn · fermentation-derived | Soil amendment, base-fertilizer enhancement and long-term soil-fertility programs. |
Values are specification limits. Exact limits, pH and solubility follow the controlled TDS of each grade.
Selection guide
Which Pepaid™ Grade for Your Program?
A starting point by application method and crop. Our team confirms the grade against your formulation and target market.
↔ Swipe table to see all columns
| Application | Suggested models | Selection focus |
|---|---|---|
| Foliar nutrition | HA80 · EA80-LMW · EA80-uLMW | Free amino acids or defined peptide size |
| Drip & fertigation | HA20-LLC · HA20L | Liquid dosing and crop chloride tolerance |
| Soil & base fertilizer | EA80 · EP60 · FP90 | Organic nitrogen, peptide profile and plant source |
| Chloride-tolerant crops | HA40 · HA20L | Check chloride level in the complete formulation |
| Plant-origin programs | EP60 · EP60P · FP90 | Corn hydrolysate, soy hydrolysate or corn fermentation |
Crop solutions
Amino Acid Solutions by Crop Goal
Start with the result your program needs, then pick the grade. Dose and timing depend on crop, growth stage and local registration.
Stress management
Helps crops cope with drought, salinity, heat and cold, and recover after agrochemical stress.
EA80-uLMW · EA80-LMW · HA20-LLCRoot development
Supports root hair and lateral root growth and faster establishment after transplanting.
EA80-uLMW · EA80-LMWFoliar nutrition
Fast-absorbed nitrogen for foliar programs, supporting leaf vigor and fruit coloring.
HA80 · EA80-uLMW · HA20-LLCSoil health & nutrient uptake
Peptide-bound organic nitrogen and chelating amino acids that help mobilize P, K, Ca and Mg in the root zone.
EA80 · EP60 · FP90Plant-origin programs
Corn, soy and fermentation grades for formulations that avoid animal inputs, including as an alternative to fish-protein hydrolysates.
EP60 · EP60P · FP90Our approach
NEO: The Pepaid™ Approach to Amino Acid Biostimulants
Twenty years of protein hydrolysis applied to crop nutrition.
New Ecology
Animal by-products, corn and soybean are the raw materials for this bio-based ingredient range.
New Efficiency
Controlled enzymatic hydrolysis to defined peptide sizes and free amino acid levels, so each grade fits its application.
New Origin
Made with the quality systems of our food-grade protein plant, with batch testing and full documentation.
Why source from us
Why Formulators Choose Pepaid™
Amino acids made in our own hydrolysis plant, for fertilizer manufacturers, distributors and private-label brands.
Own hydrolysis plant
Produced in our own protein hydrolysis factory, running since 2005.
Custom formulation
Grades tailored by crop, application method and registration needs, with OEM and private-label supply.
Documents for registration
Model-specific TDS, SDS and batch COA for supplier review and your target-market documentation.
Low MOQ and samples
MOQ from 500 kg, with free samples for formulation and field trials.
Our factory
Hanfei: Our Amino Acid Biostimulant Factory
Jiangxi Hanfei Biotechnology Co., Ltd. is ZXCHEM Group's own protein hydrolysis factory in Shangrao, Jiangxi. Since 2005 it has run controlled enzymatic hydrolysis for collagen peptides, and applies the same technology to Pepaid™ amino acid biostimulants for fertilizer and crop nutrition formulators. Every Pepaid™ amino acid biostimulant grade is available with a TDS and a free sample.
FAQ
Amino Acid Biostimulant Sourcing Questions
What is the difference between the EA and HA series?
The EA series is enzymatically hydrolyzed animal protein that keeps most amino acids bound as peptides, in three molecular-weight ranges. The HA series is more deeply hydrolyzed, with free amino acids up to 75% or more, and includes liquid grades.
Do you have amino acids without animal-derived raw materials?
Yes. Our Plant-Based Series groups EP60 from corn protein, EP60P from soybean protein and FP90 from corn fermentation. Each model has its own composition and specifications.
Why does chloride content matter?
The HA grades have different chloride limits: HA80 ≤3%, HA40 ≤30%, HA20L ≤15% and HA20-LLC ≤1.5%. Choose the grade for the target crop, irrigation water and application concentration. Peptide molecular weight and amino acid content are separate selection criteria.
What documents can you provide for registration?
We provide model-specific TDS, SDS and batch COA. Tell us your selected model, formulation and destination market so we can prepare the appropriate supporting documents.
Which grades suit organic or plant-origin programs?
EP60 (corn), EP60P (soybean) and FP90 (corn fermentation) contain no animal-derived inputs. Organic input approval depends on your certifier and market, so tell us the target scheme and we will provide the supporting documents.
Can you supply private label or custom formulations?
Yes. We adjust the formulation by crop, application method, nutrient target and registration needs, and supply in bulk or under your own label.
What is the MOQ, and can I get samples?
MOQ starts from 500 kg. Contact us for free samples for formulation and field trials, specifying the model and target application.
Request a Quote
Source Pepaid™ Amino Acids Direct from Our Factory
Tell us your crop, application method and target market. We reply within one business day with the matching grade, TDS and pricing.
- Free samples for formulation and field trials
- Animal, plant and fermentation grades; powder and liquid
- COA, TDS, MSDS and SGS reports for registration