50% Enzymatic Amino Acid Liquid
Peptide-Rich Liquid — ≥ 500 g/L Absorbed 40–60% Faster
Total amino acid ≥ 500 g/L
Free amino acid 20 – 30 g/L
pH 4.0 – 6.0
Every lot ships with a Certificate of Analysis stating tested total amino acids, free amino acids, total nitrogen and chloride.
Product Overview
Amino acids are the building blocks of proteins and, in free form, the most readily absorbed nitrogen source a plant or an animal can take up. JINGFENG’s amino acid range is produced from plant protein (soybean) or animal protein by acid or enzymatic hydrolysis, which breaks the protein chain down into free amino acids, short peptides and water-soluble nitrogen. The result is a 100% water-soluble input used as a foliar and fertigation biostimulant, a chelating agent for trace elements, and a feed-grade protein source.
50% Enzymatic Amino Acid Liquid is the liquid counterpart to our enzymatic powders: ≥ 500 g/L total amino acids, with 450–480 g/L carried as oligopeptides and polypeptides and 20–30 g/L free amino acids, at a pH between 4.0 and 6.0. It is supplied as a thick brown liquid under product code JFHA-AA-L.
Two things make it different from a conventional amino acid fertiliser. First, the enzymatic route breaks the protein down into small molecules rather than leaving large fractions the plant struggles to absorb. Second, because those molecules are already small, they are not held up by fixation in the soil — uptake is materially faster and the response shows at root development, flower and fruit retention, and stress tolerance.
Being a liquid, there is no dissolving step: it meters straight into the spray tank or the injection line, which is why it is the usual choice for fertigation programmes and for contractors working to a tight schedule.
Key Benefits
≥ 500 g/L total amino acids
Half a kilogram of amino acids in every litre, 450–480 g/L of it as peptides the crop absorbs 40–60% faster than a conventional amino acid fertiliser.
No dissolving step
Supplied ready to dilute, which saves a mixing stage in fertigation and spray programmes.
Metering accuracy
A uniform liquid is easy to dose precisely, batch after batch.
High load per litre
Concentrated grades carry a high amino acid load per litre, which keeps freight cost per unit of active down.
Mixes with most inputs
Compatible with common foliar fertilisers and, after a jar test, with many agrochemicals.
COA on every batch
Each lot ships with a Certificate of Analysis stating the tested total amino acids, total nitrogen, chloride, pH and density for that batch.
Technical Specification
| Parameter | Specification | Test standard |
|---|---|---|
| Appearance | Thick brown liquid | Visual inspection |
| Total amino acid | ≥ 500 g/L | NY/T 1975-2010 |
| Free amino acid | 20 – 30 g/L | NY/T 1975-2010 |
| Oligopeptide + polypeptide | 450 – 480 g/L | |
| pH | 4.0 – 6.0 | NY/T 1973-2021 |
Specification values are guaranteed minimums on a dry basis, taken from the batch Certificate of Analysis and tested against the stated Chinese industry standards. Every shipment travels with its own COA stating the tested values.
Need the full Certificate of Analysis, MSDS, or TDS for your formulation or tender file?
Form & Solubility
Form: a concentrated liquid supplied in drums or IBCs, ready to dilute and meter without a dissolving step.
In water: miscible with water in any proportion, so it can be injected straight into a fertigation line or dosed into a spray tank.
Handling: store upright and frost-free. Rinse lines with clean water after use.
Why the liquid absorbs faster. The enzymatic process cuts the protein down to small-molecule amino acids, oligopeptides and polypeptides — 450–480 g/L of the load is in peptide form. Those molecules are taken up by root and leaf far faster than the large-molecule fractions in a conventional amino acid fertiliser, and they are not held back by soil fixation.
Handling. Stir well before use — the liquid is thick and the peptides settle slightly on standing. A light sediment is undissolved oligopeptide; stir for one to two minutes and it goes back into solution.
How the amino acid grades compare
| Grade | Form | Total amino acid | Free amino acid | Total nitrogen | Best for |
|---|---|---|---|---|---|
| Salt-Free Amino Acid Liquid 30% | Liquid | ≥ 300 g/L | — | ≥ 7.0% | Chloride-sensitive crops; foliar and drip |
| 50% Hydrolyzed Amino Acid Powder | Powder | ≥ 45.0% | ≥ 40.0% | ≥ 15.0% | Cost-efficient foliar and fertigation over large areas |
| 50% Enzymatic Amino Acid Liquid (this product) | Liquid | ≥ 500 g/L | 20 – 30 g/L | — | Fertigation and foliar programmes, no dissolving step |
| 60% Hydrolyzed Amino Acid Powder | Powder | ≥ 60.0% | ≥ 55.0% | ≥ 12.0% | General-purpose foliar, drip and flushing |
| 80% Hydrolyzed Amino Acid Powder — Tank-Mix | Powder | ≥ 80.0% | ≥ 75.0% | ≥ 12.5% | Liquid NPK and trace-element compounding |
| 80% Amino Acid Powder — Standard | Powder | ≥ 80.0% | ≥ 75.0% | ≥ 12.5% | Feed premixes, dry blends, straight foliar and soil |
| 90% Hydrolyzed Amino Acid Powder | Powder | ≥ 90.0% | ≥ 85.0% | ≥ 15.0% organic N | Premium agriculture, feed and cosmetics |
| 90% Enzymatic Amino Acid Powder | Powder | ≥ 90.0% | ≥ 65.0% | ≥ 16.0% | Peptide-rich; organic and cosmetic specifications |
All grades are 100% water soluble and are hydrolysed from plant-source protein. Higher grades carry a larger free amino acid share, so less product is needed per hectare for the same response.
Applications & Dosage
For fruit crops (grapes, apples, citrus, strawberries), vegetables (tomatoes, cucumbers, peppers, lettuce), grain crops (wheat, corn, rice) and cash crops (cotton, tea, flowers) — at every stage from seedling to harvest.
| Application | How to use | Rate |
|---|---|---|
| Foliar spraying | Spray in the morning or the evening at the seedling stage, at flowering and during fruit expansion. Two to three applications per growth cycle. | 1:1000 – 1:1500 · 7.5–10 L per hectare |
| Drip irrigation / flushing | Meter into the line at the seedling stage, through rapid growth and for post-stress recovery; repeat every 7–10 days. | 1:800 – 1:1200 · 15–22.5 L per hectare |
| Sensitive crops and seedlings | Start at a higher dilution, test a small area and watch for 24 hours before moving to the standard rate. | Up to 1:2000 |
Packaging & Storage
| Pack size | Description |
|---|---|
| 1 kg / 5 kg / 10 kg | Printed aluminium foil bag |
| 10 kg / 20 kg | Printed carton box |
| 20 / 25 kg | Woven or paper bag with inner liner; colour-printed PP/PE bag with inner liner |
| 200 L drum / 1000 L IBC | For liquid grades; food-grade HDPE drum with tamper-evident closure |
| 1000 / 1100 kg | Jumbo bag with discharge spout |
Storage: Store in a cool, dry, well-ventilated place, away from direct sunlight and moisture. Stable for 24 months in the sealed original packaging; reseal opened bags. Liquid grades: store upright and frost-free.
Custom packaging, private-label printing and OEM specifications are available on request. Packaging photos are available in the product gallery.
Successful Cases
Tomato greenhouse, Hebei — 2 hectares
25% flower drop, blossom-end rot and weak seedling roots, made worse by fluctuating greenhouse temperatures. Foliar at 1:1200 at seedling, flowering and young fruit, plus one drip application at 1:1000 during fruit expansion. Flower drop fell to 5%, blossom-end rot cleared, seedling root biomass rose 30%, yield per hectare rose 20% and shelf life extended by 10 days.
Explore applications →
Field reference
Table grape plantation, Shandong — 5 hectares
Uneven colour, sugar at 14 °Brix and 15% fruit cracking, with heavy downy mildew pressure. Foliar at 1:1300 at bud break, flowering and veraison, three applications. Colour uniformity reached 95%, sugar rose to 16–17 °Brix, cracking dropped 70%, downy mildew incidence fell 55% with fungicide use cut 30%, and market price rose 20%.
Explore applications →
Field reference
Lettuce field, Zhejiang — 4 hectares
Slow growth, thin leaves and poor resistance to leaf spot, with harvest running five to seven days late. Drip at 1:1000 at the seedling and rosette stages, two applications. Harvest came forward by four days, leaves were thick and crisp, leaf spot fell 60%, yield per hectare rose 18% and the marketable rate reached 97%.
Explore applications →
Full case studies with crop data are published in our application sectors.
Frequently Asked Questions
What is the advantage of enzymatic hydrolysis over a conventional amino acid fertiliser?
Conventional amino acid fertilisers often carry large-molecule fractions that the plant absorbs poorly and that get fixed in the soil. The enzymatic route breaks the protein down into small molecules, oligopeptides and polypeptides, which root and leaf take up 40–60% faster, and it preserves more biological activity — so the product works as a biostimulant as well as a nutrient.
Can I use it during flowering? Will it harm pollinators?
Yes, at the recommended 1:1000–1:1500 dilution. It is made of natural amino acids and is not toxic to bees or other pollinators; spraying in the early morning, before pollinators are active, is good practice.
Is slight sediment after dilution normal?
Yes. It is usually a small amount of undissolved oligopeptide, which is common with high-concentration peptide products. Stir vigorously for one to two minutes, or let it stand for five — the sediment goes back into solution and neither the analysis nor the effect changes.
How does it improve drought and cold tolerance?
The small-molecule amino acids and peptides strengthen cell walls, improve water retention in the cell, and trigger the production of stress proteins. In our Henan corn trial, treated fields held green leaves seven days longer through a dry spell than untreated fields.
Can it be tank-mixed with other inputs?
It mixes with most neutral and weakly acidic fertilisers and pesticides. Do not mix with strongly alkaline material above pH 8, and run a 100 mL compatibility test before the first full batch.
Is it suitable for organic production?
Yes. It is made from natural raw materials with no synthetic additives, heavy metals or chemical residues, and complies with organic agricultural input standards.
How should I apply it on sensitive crops?
Start at a higher dilution, around 1:2000 for foliar, test a small area and wait 24 hours. If there is no leaf burn or stress, move to the standard rate. Most crops, including young seedlings, tolerate the standard 1:1000–1:1500 range well.
What is the shelf life and how is it stored?
24 months from the production date, stored at 5–35 °C in a cool, dry, well-ventilated place out of direct sunlight. Seal the container after use to limit oxidation.
Do you offer OEM and custom packaging?
Yes. We print your brand on 1 L, 5 L, 20 L and 200 L containers, and we can adjust the amino acid concentration or the peptide ratio to suit your local crops — for example a higher peptide share for stress-prone regions.
What is the minimum order and the sample policy?
Bulk MOQ is 500 L, with volume discounts above 5000 L and further cumulative discounts for long-term customers. A 1 L sample is available — you cover the express cost and we dispatch within two working days with a short trial guide.
Also Available in This Family
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30% Amino Acid Round Granule
Amino Oligosaccharide Peptide Liquid
Amino Acid Chelated Calcium and Magnesium Liquid
Amino Acid Chelated Trace Elements Liquid
Amino Acid Chelated Trace Elements Powder 15%
30% Hydrolyzed Amino Acid Powder
45% Hydrolyzed Amino Acid Powder
Concentrated Amino Acid Liquid 30%
40% Chlorine-Free Amino Acid Powder
80% Enzymatic Amino Acid Powder
70% Hydrolyzed Amino Acid Powder
90% Enzymatic Amino Acid Powder
90% Hydrolyzed Amino Acid Powder
60% Hydrolyzed Amino Acid Powder
50% Hydrolyzed Amino Acid Powder
Salt-Free Amino Acid Liquid 30% – Plant-Source, Low Chloride
80% Amino Acid Powder, Standard Grade
80% Hydrolyzed Amino Acid Powder – Tank-Mix GradeNeed a quotation or a sample?
Tell us your application, target market and packaging — we will come back with specification, price and lead time.
