*1,000 mu · fully delivered by the end of 2027
How we grow and process Dunaliella
Better ingredients start with a controlled culture.
HETCHYN connects glass-greenhouse cultivation with drying, extraction and microencapsulation so customers can choose a format and production route that fit their product.
- Glass-greenhouse cultivation
- Two extraction routes
- Three ingredient formats
- Specification-led production
Technology definition
What is a connected Dunaliella production system?
HETCHYN's controlled Dunaliella production is a connected five-stage system that moves from culture management to concentration, drying, optional extraction and optional microencapsulation. The route branches after whole-algae powder is produced: powder can remain as the finished ingredient, be extracted into oil, or continue into water-dispersible beadlets. Each product code fixes the relevant potency, route, carrier and release-document set.
- Upstream
- Glass-greenhouse raceway cultivation
- Route choices
- Whole-algae drying · RE extraction · SE extraction · microencapsulation
- Buyer output
- A defined product code with route-specific documents
- Evidence owner
- Technical review by HETCHYN Scientific & Technical Team
Ethyl acetate + supercritical CO₂
Powder, oil + beadlets
Cultivation through batch documentation
Controlled culture development and monitoringControlled cultivation
A more controlled place to grow Dunaliella.
Enclosed raceways separate the culture from the open environment and give our team greater control over the conditions that shape the biomass before concentration, drying or extraction.
01Light
02Temperature
03Salinity
04Nutrients
05Water circulation
06Physical isolation
Connected production routes
One algae source, made for three types of formulation.
The same cultivated biomass can become whole-algae powder, a concentrated oil or water-dispersible beadlets.
Production routes at a glance
Five stages from living culture to finished ingredient.
The process begins with cultivated Dunaliella and branches after the biomass is concentrated. Compare what goes in, how it is processed and which ingredient format comes out.
| Stage / route | Input | Core process | Commercial output | What to confirm |
|---|---|---|---|---|
| Controlled cultivation | Selected Dunaliella culture | Glass-greenhouse raceways with managed light, temperature, salinity, nutrients, water circulation and physical isolation | Harvest-ready culture | Upstream conditions are monitored before concentration |
| Whole-algae powder | Harvested culture | Centrifugal concentration, followed by spray drying or freeze drying | Whole-algae powder · 2–8% catalogue potency | No formulation carrier is added to the original powder |
| RE oil | Dunaliella powder | Ethyl-acetate extraction, solvent recovery, concentration and carrier standardisation | Oil · 10%, 20%, 30% fixed grades · custom 1–30% | Total residual solvents Spec limit: ≤20 ppm |
| SE oil | Dunaliella powder | Supercritical CO₂ extraction, separation, concentration and carrier standardisation | Oil · 5%, 10%, 20% fixed grades · custom 0–20% | No residual extraction solvent |
| Beadlets | Selected RE or SE oil | Emulsification, encapsulation and drying | Water-dispersible powder · 1–10% | Carrier system and dispersion performance are confirmed for the intended formula |
Product code controls the final potency, route, carrier system and applicable documentation.
Extraction choice
Two oil routes for different product priorities.
Both routes produce oil-soluble natural beta-carotene ingredients. Choose between them by target concentration and residual-solvent requirements.
| Decision point | RE series | SE series |
|---|---|---|
| Extraction route | Ethyl acetate extraction | Supercritical CO₂ extraction |
| Fixed oil grades | 10% · 20% · 30% | 5% · 10% · 20% |
| Custom oil range | 1–30% | 0–20% |
| Residual-solvent statement | Total residual solvents ≤20 ppm (Product Specification limit) | No residual extraction solvent |
| Choose when | The agreed potency and conventional extraction route fit the brief | A supercritical route with no residual extraction solvent is a product priority |
The statements are not interchangeable: “≤20 ppm” is the RE-series Product Specification limit, while “none” describes residual extraction solvent for the SE route.
Review oil product codesRoute selection
Map a product brief to a production route in four steps.
Define format and potency first, then compare the route and qualify the product code.
Compare product grades- 01Step 1 · Dosage form
Choose the physical ingredient format
Map dry solid, lipid-phase or water-dispersible needs to powder, oil or beadlets.
- 02Step 2 · Potency
Choose a workable concentration
Align the route-specific potency range with target serving, ingredient load and commercial quantity.
- 03Step 3 · Route
Confirm processing priorities
For oil and beadlet grades, compare ethyl acetate and supercritical CO₂ routes and confirm the carrier system.
- 04Step 4 · Evidence
Qualify the selected product code
Review the current Product Specification, representative COA, SDS / MSDS and applicable certificate before approval.
What process control means for buyers
A production route you can match to your product needs.
Cultivation method, extraction route and carrier choice all affect the ingredient you receive. We connect those choices to a defined product specification and batch documents.
Review our quality approachPowder-specific controlDunaliella salina powder total arsenic control.
HETCHYN's current production-control commitment for total arsenic is ≤0.5 ppm. The formal release limit remains defined by the selected Product Specification, and the batch result is reported on its COA.
Cultivation control
A more consistent biological starting point
Greenhouse raceways allow the operating team to manage the culture variables that influence biomass quality before harvest.
Route selection
A defined potency and solvent profile
The selected drying or extraction route determines the available ingredient format, concentration range and residual-solvent requirement.
Standardisation
Fixed grades and practical custom ranges
Standard and custom potency options let product teams match the ingredient to a dosage form instead of forcing one grade into every application.
Batch release
Requirements connected to batch evidence
The Product Specification defines release requirements; the COA reports the actual batch result; the SDS supports safe handling.
Inside our operation
See where cultivation becomes an ingredient.
Our Jiaxing operation connects greenhouse cultivation, biomass concentration and downstream processing.
Dunaliella expertise
Built by people who understand the algae and the process.
HETCHYN combines hands-on Dunaliella cultivation experience with long-term academic research in microalgae and high-value biological compounds.
Founder & CEO
Dr. Nancy Xu
Dr. Nancy Xu is a leading expert in Dunaliella salina cultivation and commercial natural carotenoids. She is named as an inventor on multiple international patent records covering Dunaliella production and related algal technologies.
LinkedIn profile Patent record
Chief Scientist
Professor Patricia Harvey
Professor Patricia Harvey is HETCHYN's Chief Scientist and Emeritus Professor of Biochemistry at the University of Greenwich. Her work spans microalgae, biorefineries and sustainable production of high-value compounds.
Explore HETCHYN research University profileResource efficiency
Water stays in the cultivation loop.
The cultivation system is designed around zero liquid discharge. Cultivation water is recovered and reused, while photosynthesis converts carbon dioxide into algal biomass.
- Zero liquid discharge design
- Cultivation water recovery and reuse
- Carbon converted into biomass during growth
Closed-loop water recovery and filtrationTechnology FAQ
What buyers need to understand about the route.
Production choices affect the physical format and the product specification. They should be compared within the selected product code.
01Why use glass-greenhouse raceway cultivation?
The enclosed greenhouse separates the culture from the open environment and gives HETCHYN more control over water, inputs, salinity, temperature, light and physical exposure before the complete biomass becomes an ingredient.
02What is the difference between RE and SE extraction?
RE uses ethyl acetate extraction and has a current total residual-solvent specification of ≤20 ppm. SE uses supercritical CO₂ extraction and is described as having no residual extraction solvent. Their available potency ranges also differ.
03Is whole-algae powder an extract?
No. Whole-algae powder is concentrated Dunaliella biomass that is spray-dried or freeze-dried without an extraction stage and without added excipients.
04How do beadlets fit into the process?
A selected RE or SE oil is emulsified, encapsulated and dried into a protected, water-dispersible powder. The carrier composition and dispersion performance are confirmed for the intended formula.
05Which documents identify the actual production route?
The product code and current Product Specification define the route and requirements. The COA reports results for the supplied batch, while the SDS / MSDS supports handling and storage.
Talk to our ingredient team
Choose a production route that fits your product.
Share your application, target potency and market. We will help identify the most suitable starting grade.
Start an inquiry