Sunyuan
Natural color technology platform

High-strength natural colors, developed from cultivation to extraction.

Sunyuan focuses on three natural color directions: Gardenia Yellow, Radish Red, and purple pigment development. Our technical advantage comes from raw material control, clean extraction design, high color value targets, and variety-based spectrum improvement.

Technical indicators
740Gardenia Yellow color value capability
95+Radish Red color value capability
514–540 nmCurrent Radish Red absorption spectrum range
0No acetone, hydrochloric acid or non-natural reagent route
Product platform

Three focused color directions, each with a different technical objective.

We are not trying to build a broad commodity catalog. Our work is concentrated on selected natural colors where raw material, extraction technology, and application performance can be improved together.

Commercial focus

Gardenia Yellow

740 color value

Our Gardenia Yellow development targets high color strength, bright yellow-orange tone, and consistent performance for food and beverage applications.

  • High color value capability up to 740
  • Controlled extraction and concentration process
  • Batch consistency supported by factory process control
Commercial focus

Radish Red

95+ color value

Radish Red is our strategic red pigment direction. We work from planting variety to extraction process to achieve stronger shade control and better customer matching.

  • Color value above 95
  • Current absorption coverage from 514 nm to 540 nm
  • Multiple red and purple-red variety options
In development

Purple pigments

R&D stage

Our purple pigment direction is currently focused on purple radish and grape skin purple. This area is under development, with emphasis on shade range, extraction route, and application feasibility.

  • Purple radish development direction
  • Grape skin purple development direction
  • Unique purple radish resource under evaluation
Clean extraction route

Natural-process extraction without non-natural reagent dependence.

During extraction, we avoid adding non-natural extraction reagents such as acetone or hydrochloric acid. Our process route uses natural extract-based processing support, and pH adjustment is designed with malic acid. These details are part of our factory-specific technical know-how.

1
No acetone route
Extraction design avoids acetone use in the process route.
2
No hydrochloric acid route
pH control is not built around hydrochloric acid addition.
3
Malic acid for pH adjustment
We use malic acid to support a more natural process concept.
Factory know-how

Process control is where color value becomes commercial quality.

High color value is not only a laboratory number. It depends on raw material quality, extraction temperature, pH window, separation efficiency, concentration control, drying or liquid formulation, and final batch testing.

  • Raw material selection and pre-treatment control
  • Extraction condition and pH window management
  • Separation, concentration, and finishing process design
  • Color value, shade, and consistency verification before delivery
Plantation control

Cleaner raw material starts before extraction.

At our planting base, we do not use pesticides, reducing pesticide residue risk as much as possible from the agricultural stage. This supports a cleaner raw material foundation before the pigment enters the factory process.

1

Seed and variety

We select and improve varieties based on pigment performance, not only agricultural yield.

2

No pesticide planting

Planting management is designed to minimize pesticide residue risk from the source.

3

Controlled harvest

Harvest timing and raw material condition are managed to support extraction strength.

4

Factory traceability

Plantation control is connected with extraction and quality control in our own factory.

Variety-driven spectrum control

We cooperate with agricultural technology partners to change pigment absorption from the variety itself.

Instead of only adjusting color during processing, Sunyuan also works upstream with agricultural planting technology units. The goal is to change pigment characteristics at the variety level and provide customers with more precise natural color choices.

Red radish raw materials showing different internal pigment intensity
Radish raw material and pigment potentialDifferent radish roots show visible variation in internal red pigment intensity, supporting our variety-based shade and extraction development.

Current Radish Red absorption coverage: 514 nm to 540 nm

514 nm522 nm532 nm540 nm

This range allows us to support different red shade requirements with more precise absorption peak selection. Combined with five red radish varieties and two purple varieties, we can choose raw material routes according to customer application needs.

Red radish variety platform

Five red varieties are available for different red shade targets and extraction performance requirements.

Unique purple radish resource

We are developing a rare purple radish direction as part of our global natural purple pigment strategy.

Customer-matched extraction

Different absorption peaks can be matched to customer needs, product pH, target shade, and application conditions.

Confidential technical information

Some technical details are not published on this page.

Specific extraction parameters, process conditions, proprietary variety data, and internal quality benchmarks are part of our factory know-how and are not disclosed publicly. If you are evaluating Sunyuan as a technical partner or supplier and need deeper process documentation, we are open to sharing relevant information under appropriate business context.

Contact us for technical details

Use this page for serious technical conversations.

Tell us your target color, product pH, heat process, packaging, dosage limit, and required color value. We can discuss whether Gardenia Yellow, Radish Red, purple radish, or grape skin purple is the right technical direction for your application.