Natural pigment solutions for replacing artificial pigments

AGAINST the backdrop of the global food and beverage industry stepping into a new era of "Clean Label" and "healthy consumption", the use of synthetic artificial pigments is facing unprecedented challenges. Consumers' growing attention to the transparency of ingredient lists and the continuous tightening of regulatory policies have driven brands to urgently seek a new balance among color performance, product stability and cost control. As a world-leading supplier of nutrients and functional ingredients, NHU, relying on its complete industrial chain and the dual-technology platform of "chemistry + biology", proposes a systematic natural pigment replacement solution, providing technical support for beverage and food enterprises to achieve a smooth transition from artificial pigments.

1. Tightening regulations and the clean label trend: A turning point for artificial pigments

In recent years, numerous studies have pointed out that some petroleum-based synthetic pigments are associated with childhood attention deficit hyperactivity disorder, allergic reactions and potential carcinogenic risks, arousing widespread public concern. Regulatory authorities have also accelerated the review process. In 2025, the U.S. Food and Drug Administration announced the gradual phase-out of a variety of petroleum-based synthetic pigments, including Red No.3, Yellow No.5, Yellow No.6 and Blue No.1, with natural-sourced pigments and biotechnology-derived pigments becoming the policy-encouraged direction.

At the same time, the global Clean Label market scale has maintained steady growth, and consumers are more inclined to choose products labeled with "natural", "no artificial additives" and "recognizable ingredients".

2. Natural pigments: From "color replacement" to "value upgrading"

Different from traditional artificial pigments that only have coloring functions, natural pigments combine nutritional value and functional properties. For example, β-carotene not only imparts an orange-yellow hue but also serves as an important precursor of vitamin A; lycopene has antioxidant activity; lutein is associated with visual health. Natural pigments are no longer just "visual tools" but an important interface for the functionalization of food products.

Natural pigments are mainly derived from: plant extraction (capsanthin, beet red, curcumin, etc.); animal sources (carmine); microbial fermentation (monascus red, etc.); and nature-identical pigments obtained through chemical or biological synthesis with structures consistent with natural ones.

In industrial production, solvent extraction, supercritical fluid extraction, microbial fermentation and chemical synthesis technologies jointly build a stable supply system. Taking NHU as an example, the company has a complete ecological industrial chain from corn deep processing, glucose production to nutrient synthesis and formulation, achieving both raw material control and scale advantages.

3. Replacement practice centered on β-carotene

In artificial pigment replacement solutions, β-carotene is one of the most widely used natural carotenoids. Its molecule contains 11 conjugated double bond structures and absorbs blue-violet light (λ≈450nm) through π-π* electronic transition, presenting a bright orange-red color. The all-trans isomer has a deep color and high stability, while the cis isomer has a lighter color.

However, β-carotene is sensitive to light, heat and oxygen, and is prone to isomerization, oxidative degradation, polymerization and precipitation, leading to fading, reduced nutritional activity and off-flavor generation. Therefore, the key to natural pigment replacement lies not in "whether replacement is possible", but in "how to achieve stable replacement".

4. NHU's core technological breakthroughs to solve industry pain points in natural pigment replacement

4.1 Precision color matching technology for full-spectrum precision replacement of artificial pigments

To address the limitation of a single natural pigment in color spectrum, NHU has built a complete precision color matching system through scientific compounding based on the mainstream flavor and color requirements of beverages, realizing full-spectrum replacement of artificial pigments with natural color and no pungent off-flavor of artificial pigments. Mature replacement solutions have been formed at present:

1）Application research system core strength 1-color database

2）Application research system core strength 2-color matching

4.2 Color regulation technology for precision matching of personalized beverage color requirements

Based on the principle of organic molecular electronic transition, NHU has mastered the color development mechanism of natural pigments —— the color of pigments is determined by the number and structure of conjugated double bonds, and the longer the conjugated system, the deeper the color. On this basis, through four means: raw material regulation, component compounding, process precision control and co-color stabilization, precise customization of natural pigment colors is achieved, and different hues from pale yellow to deep orange-red and light pink to deep red can be prepared according to enterprise needs. Meanwhile, to solve the problem of poor water dispersion of natural pigments, various formulations such as powder and emulsion have been developed, such as 20% β-carotene beadlets and 10% β-carotene emulsion, which adapt to the coloring needs of different beverage matrices, realize uniform dispersion of pigments and improve color development effect.

4.3 Stabilization technology for greatly improving processing and shelf-life stability

NHU has developed a comprehensive natural pigment stabilization technology system, building protection from multiple dimensions to solve the problems of pigment oxidation, isomerization and polymerization.

The stabilized β-carotene shows no oil floating after 21 days of room temperature light storage in a sugar-acid water matrix (pH3.1), and the color difference change is far superior to products of other companies in the industry.

5. From replacement to upgrading: A new model of industrial collaboration

Natural pigment replacement should not be regarded merely as a means to comply with regulations, but more as an opportunity for product upgrading. By enhancing the brand's healthy image, strengthening functional attributes and supporting Clean Label claims, enterprises can boost consumer trust and achieve long-term sustainable development.

Conclusion

Against the backdrop of Clean Label and increasingly stringent global regulations, the replacement of artificial pigments has become an irreversible trend in the beverage industry, and natural pigments have emerged as the optimal solution with their core advantages of safety and nutrition. Relying on technological accumulation and industrial advantages, NHU has solved the industry pain points of natural pigments through three core technological breakthroughs, guaranteed product quality and supply with its full industrial chain layout, and provided one-stop replacement services for beverage enterprises with customized solutions, becoming a leader in the field of natural pigment replacement.

In the future, NHU will continue to increase R&D investment in the field of natural pigments. On the one hand, it will explore more pigment varieties with both nutritional and coloring functions to enrich the product system; on the other hand, it will promote the integration of cutting-edge technologies such as synthetic biology and nanotechnology with the production and application of natural pigments, improve production efficiency, reduce costs, and further optimize product stability and adaptability. Meanwhile, NHU will strengthen in-depth cooperation with beverage enterprises, intervene from the product R&D stage, provide full-process application guidance, carry out collaborative innovation with upstream and downstream of the industry, jointly build a natural pigment application ecosystem, and continue to lead the beverage industry towards a new era of "natural + nutritional + functional", continuously improving the quality of food and beverages with innovative fine chemical technologies.

Contact NHU

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