INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
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PIGMENT-PRODUCING MICROORGANISMS: A SOURCE OF NATURAL DYES
Khusanova Sugdiana Mansurjon kizi
Mirzo Ulugbek Republic
Master's student of the National University
Abstract:
The state discusses the fact that microorganisms are one of the most important and
widespread representatives of their nature and that they are of great importance not only in
the processes of decomposition, but also in the muscular, medical, ecological and food
spheres. In recent years, special attention in science and practice has been attracted by
pigment-producing microorganisms, antioxidant and antibacterial pigments have the potential
for wide application in pharmaceuticals.
Keywords:
Pigment, industry, medicine, ecology, food industry, antioxidant and antibacterial
drug, Rifampicin, Prodigiosin.
ABSTRACT
The article discusses the fact that microorganisms are one of the most important and
widespread representatives of living nature and that they are of great importance not only in
the processes of decomposition, but also in the industrial, medical, ecological and food
spheres. In recent years, pigment-producing microorganisms have attracted special attention
in science and practice, and antioxidant and antibacterial pigments have the potential for
widespread use in pharmaceuticals.
Keywords:
Pigment, industry, medicine, ecology, food industry, antioxidant and
antibacterial, Rifampicin, Prodigiosin.
As you know, the decrees No. PF-20 of 01/23/2024 and No. PF-13 of 01/28/2025 "On
additional measures for the accelerated development of the pharmaceutical industry in 2022-
2026" are currently in force.
If we talk about pigments and their biological role, then in recent years, pigment-
producing microorganisms have attracted special attention in science and practice. The
natural pigments they synthesize are used in various industries as an alternative to synthetic
dyes. Pigments are colored organic compounds that have the property of absorbing light.
Pigments synthesized by microorganisms often perform protective or signaling functions in
their environment. For example, it can protect against ultraviolet radiation, compete with
other microorganisms, or perform warning (toxic) functions.
We know that there are many different types of microorganisms that produce pigments.
Many microorganisms have the ability to produce pigments. The most important of them are:
1. Bacteria: Serratia marcescens (pigment prodigiosin), Pseudomonas aeruginosa (pyocyanin,
pyoverdin), Chromobacterium violaceum (violacein).
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 04,2025
Journal:
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page 805
2. Fungi (mycetes): Monascus purpureus produces red, yellow and orange pigments. These
pigments are used in the food industry.
3. Actinomycetes: Bacteria belonging to the genus Streptomyces produce a variety of color
pigments, including those with antibiotic properties.
4. Algae and microalgae: for example, Spirulina platensis (phycocyanin pigment) has natural
antioxidant properties.
Pigments are of particular importance in industry.Pigments produced by
microorganisms are natural, biodegradable and non-toxic. Therefore, they are widely used in
the following areas:
Food industry: as a natural dye (Monascus, Spirulina pigments).
Pharmaceutics: pigments with antioxidant, antibacterial and antitumor properties. The use of
natural and synthetic pigments in modern pharmaceuticals is becoming increasingly
important not only from an aesthetic but also from a therapeutic point of view. In particular,
pigments with antioxidant and antibacterial properties play an important role in increasing the
effectiveness of drugs, reducing side effects and protecting the div.
Cosmetics: used in skin protection products and dyes.Environmental monitoring: some
pigments are produced in response to toxic substances, which allows them to be used as
biosensors.A general description of pigments is as follows.Pigments are biologically active
substances that have their own coloring and bioactive properties. They are obtained from
natural sources (plants, animals, or microorganisms) or by artificial synthesis.
1. Antioxidant pigments
Antioxidant pigments protect cells from oxidative stress. They neutralize free radicals, slow
down the aging process, and are useful for the prevention of cancer, cardiovascular disease,
and other chronic diseases.
Major antioxidant pigments:
Carotenoids (beta-carotene, lycopene)
Flavonoids (anthocyanin, quercetin)
Chlorophyll is the main green pigment of plants.
2. Antibacterial pigments
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 04,2025
Journal:
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Antibacterial pigments act as natural antibiotics to fight bacteria. They help fight infections
by killing germs or stopping their growth.
Popular pigments:
Rifampicin – obtained from the bacterium Streptomyces rifamycinica
Prodigiosin – isolated from the bacterium Serratia marcescens
In pharmaceuticals, these pigments are used in the following areas:
Creams, ointments and lotions – accelerate skin regeneration, relieve inflammation
Tablets and capsules – have an internal effect on the div
Antiseptics – effective against microbes
Cosmetics – to maintain youthful skin and fight inflammation
For example, lycopene prevents skin aging due to its powerful antioxidant properties, and
rifampicin is used as the main drug against tuberculosis.
Conclusion
Pigment-forming microorganisms are natural, environmentally friendly and multifunctional
biological resources. They can be used to produce environmentally friendly paints, medicines,
food additives and many other products. In the future, microbial pigments will become a
sustainable and healthy alternative to synthetic dyes.
Antioxidant and antibacterial pigments have a wide range of applications in
pharmaceuticals, playing an important role not only in appearance but also in restoring and
maintaining health. In-depth study of the therapeutic value of these pigments and their
inclusion in pharmaceutical formulations is one of the current areas of modern
medicine.Optimization of the production of microbiological pigments.The synthesis of
pigments depends on the growth conditions of microorganisms: the type of nutrient medium,
pH, temperature, light intensity and aeration conditions affect the intensity of pigment
formation. Thanks to modern biotechnological methods, these conditions are optimized, and
high-quality pigments are obtained on a large scale.
References:
1. Madigan, M. T., Bender, K. S., Buckley, D. H., Suttley, W. M., & Stahl, D. A. (2018).
Brock Microbiology (15th ed.). Pearson Education.
2. – Detailed information on the basic microbiology and pigment synthesis processes in
microorganisms.
3. Shank, E. A. and Coulter, R. (2009). New developments in interspecies microbial
signaling. Current Opinion in Microbiology, 12(2), 205–214.
4. – The importance of pigments in interbacterial signaling is highlighted.
5. Dufosse, L. (2006). Microbial Production of Food Pigments. Food Technology and
Biotechnology, 44(3), 313–321.
6. – On microbial pigments used in food processing.
7. Joshi, V. K., Attri, D., Bala, A., and Bhushan, S. (2003). Microbial Pigments. Indian
Journal of Biotechnology, 2(3), 362–369.
8. – Indian scientists have studied the types of microorganisms that produce pigments.
9. Velmurugan, P., Lee, Y.S., and Cho, M. (2010). Bioprospecting of microbial pigments:
Applications and prospects. Biotechnology and biotechnological engineering, 15(4),
540–551.
10. – An analytical article on the industrial application of microbiological pigments.
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 04,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 807
11. Litvinova, N.A., Suslova, T.I. (2014). Microbial pigments in biotechnology. Bulletin of
Moscow State University of Technology named after K.G. Razumovsky, 2(22), 62–68.
12. – Biotechnological production of microbiological pigments is covered in Russian.
13. Otaev, H.H., Rustamov, I.A. (2017). Microbiology. Tashkent: Publishing House of the
National Encyclopedia of Uzbekistan.
14. – A book on basic microbiology written by local authors.
15. Ahmed, S.A., and Mostafa, M.M. (2014). Production of natural pigments by Monascus
purpureus. International Journal of Advanced Research, 2(12), 927–939.
16. – The pigment synthesis properties of Monascus fungus were analyzed.
17. Raja, R., Hemaiswarya, S., and Rengasamy, R. (2007). Use of Dunaliella for β-carotene
production. Applied Microbiology and Biotechnology, 74, 517–523.
18. – On the extraction methods of pigments from microalgae.
19. Sanchez, C. et al. (2010). Microbial pigments: Current status and future prospects.
Critical Reviews in Biotechnology, 30(2), 127–144.
20. – An analytical article devoted to the potential of pigments in industry, medicine and
ecology.
