Enhancing pigment production by a chromogenic bacterium (Exiguobacterium aurantiacum) using tomato waste extract: A Statistical approach DOI Creative Commons
Birhanu Zeleke, Diriba Muleta, Hunduma Dinka

и другие.

Опубликована: Окт. 17, 2024

Abstract There is high demand for microbial pigments as promising alternative synthetic basically safety and economic reasons. This study aimed at the optimization of yellowish-orange pigment production by Exiguobacterium aurantiacum using agro-waste extract growth substrate. Air samples were collected depositional method. Pure cultures producing bacteria isolated subsequent culturing on fresh nutrient agar medium potent isolate was identified MALDI-TOF technique. Culture conditions screened Plackett-Burman design most three significant variables optimized response surface methodology. Fermentation conducted in 150 mL decoctions from which tomato waste selected because higher optical density culture compared to other extracts. Pigment extracted solvent extraction method best based its ability dissolve suspension. The characterized spectroscopic chromatographic techniques. agitation rate, initial pH concentration yeast (p< 0.0001) affecting production. At conditions, 0.96 g/L 4.73 biomass under 1.6 times than un-optimized conditions. analyses demonstrated presence different functional groups carotenoids parts molecule responsible pigmentation extract. potential Hence, current findings strongly encourage further a large-scale level industrial

Язык: Английский

Eco-friendly organic nanomaterials for multifunctional textiles: sources, applications, recent advances and future prospects towards sustainability DOI
Md. Shahadat Hossain Khan,

Mostafizur Rahaman,

Arnob Dhar Pranta

и другие.

International Journal of Environmental Science and Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

Язык: Английский

Процитировано

7

Bioactive component integrated textiles: A promising source of medicine and healthcare DOI Creative Commons
Joyjit Ghosh, Md. Reazuddin Repon, Arnob Dhar Pranta

и другие.

Journal of Engineered Fibers and Fabrics, Год журнала: 2025, Номер 20

Опубликована: Янв. 1, 2025

The healthcare industry can greatly benefit from natural colorants as bioactive component integrated textiles. These textiles are perfect for use in because they biocompatible, have antimicrobial characteristics and sustainable. It is an exciting new development that might replace harmful synthetic dyes with safer more practical options of bio-colorants makes them both biocompatible antimicrobial. By facilitating quicker healing warding off infections, these further add to improved outcomes. also helps fund research into smart clothes track vital signs better care patients. Incorporating the focus this review paper which will examine different sources fabrication methods. In addition, work discuss obstacles future possibilities bio-colorant technology advancement textile sectors. Developing monitor health parameters, improving wound dressings properties creating fabrics surgical garments hospital linens all potential uses Patients wear protect themselves ultraviolet rays materials could find environmentally friendly medical supplies.

Язык: Английский

Процитировано

2

Molecular docking technology drives multidimensional applications of microbial natural products DOI

Chan Zhang,

Qingjie Sun,

Arzugul Ablimit

и другие.

Journal of Molecular Structure, Год журнала: 2025, Номер unknown, С. 142044 - 142044

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

A prodigiosin/surfactin nanobiotechnological formulation: Development and characterization DOI

Amira M. Heneidy,

Dina M. Mahdy,

Hoda E. Mahmoud

и другие.

Опубликована: Янв. 1, 2025

There is a growing global interest in developing greener and safer pharmaceutical formulations that minimize environmental impact. In this study, we present biotechnological nanoformulation combining prodigiosin (PG), water-insoluble, microbially derived red pigment with multifunctional bioactivity surfactin (SF), lipopeptide biosurfactant known for its diverse surface-active properties. PG was produced by Serratia marcescens, spectrally characterized, subsequently incorporated into preformed SF nanomicelles (nSF) via thermal sonication at 50 °C, yielding PG-loaded (nPG/SF). Physicochemical characterization of nPG/SF revealed spherical nanostructures an average diameter 227 ± 18.95 nm, moderate polydispersity index (PDI) 0.59 0.17, negative surface charge (-27.1 0.97 mV), high entrapment efficiency (98%), physical stability 4 °C least 14 days. terms bioactivity, nanomicellization appeared to enhance the antibacterial effect against Staphylococcus aureus clinical isolate Pseudomonas aeruginosa, while significantly (p < 0.05) improving SF's cytotoxic activity two breast cancer cell lines, MCF-7 MDA-MB-231. Furthermore, using nSF as carrier slightly increased PG’s anticancer activity, suggesting potential dose reduction both SF. Overall, study provides proof concept eco-friendly, biosurfactant-based nanomicellar formulation improved solubility, stability, supporting applications. Further investigations are warranted validate extend these findings.

Язык: Английский

Процитировано

0

Natural Pigments From Micrococcus aloeverae and Exiguobacterium aestuarii Strain as Sustainable Textile Dyes DOI
Moitrayee Devi,

Nibedita Talukdar,

Suresh Deka

и другие.

Journal of Basic Microbiology, Год журнала: 2025, Номер unknown

Опубликована: Май 15, 2025

ABSTRACT Pigments, used as colouring agents for centuries, can be derived from nature or synthesized in labs. However, artificial dyes often pose health and environmental risks, leading to increased interest natural pigments, particularly those bacteria. This study investigates extracting characterizing pigments Micrococcus aloeverae (orange pigment) Exiguobacterium aestuarii (yellow pigment). The were extracted using methanol stability was analysed the CIELAB (International Commission on Illumination) scale. purified through thin layer chromatography (TLC) column by Fourier transform infrared spectroscopy (FTIR) liquid tandem mass spectrometry (LCMS/MS), revealing key compounds including roseophilin, tryptanthrin, vulgaxanthin II, nectriachrysone, menaquinone‐7 carboxylic acid. Stability tests indicated that most stable at neutral pH but degraded under extreme pH, heat, light, with orange pigment showing greater stability. two applied three different fibres is, cotton, Eri silk, Mulberry silk. Both showed a strong affinity mulberry Optimal dyeing conditions both pH: 3.0 60°C 40 min, resulting excellent colour fastness washing, rubbing. suggests yellow M. E. could effective colorants, potential applications textiles other industries.

Язык: Английский

Процитировано

0

Colourful Protection: Challenges and Perspectives of Antibacterial Pigments Extracted from Bacteria for Textile Applications DOI Creative Commons
Micaela Gomes, Helena P. Felgueiras, Barbara R. Leite

и другие.

Antibiotics, Год журнала: 2025, Номер 14(5), С. 520 - 520

Опубликована: Май 17, 2025

Bacterial pigments have gained significant attention across multiple industries due to their natural hues and unique functional properties. Beyond coloration, some of these exhibit antibacterial activity, making them particularly valuable in the textile industry as sustainable alternatives synthetic antimicrobial treatments. Bacteria produce a vast array through diverse biosynthetic pathways, which reflect metabolic adaptability ecological roles. These pathways are influenced by environmental factors such pH, temperature, nutrient availability. Key pigments, including carotenoids, melanin, violacein, prodigiosin, synthesised distinct mechanisms, often involving tightly regulated enzymatic reactions. For example, carotenoid biosynthesis relies on isoprenoid precursors, while melanin formation involves oxidation aromatic amino acids. Understanding provides insights into bacterial survival strategies, stress responses, interactions with environment. This review examines dyeing potential fabrics, highlighting advancements environmentally friendly extraction methods minimise impact. Additionally, it explores safety, biocompatibility, industrial challenges associated pigment applications. Finally, future perspectives integrating various discussed, emphasising bio-based solutions for materials.

Язык: Английский

Процитировано

0

Pigments from pathogenic bacteria: a comprehensive update on recent advances DOI

Kusumita Acharya,

Swarna Shaw,

Sudipta Paul Bhattacharya

и другие.

World Journal of Microbiology and Biotechnology, Год журнала: 2024, Номер 40(9)

Опубликована: Июль 20, 2024

Язык: Английский

Процитировано

2

Isolation and Molecular Characterization of Pigment Producing Bacteria from Soil of Different Locality of Assam DOI Creative Commons
Moitrayee Devi, Deep Prakash Parasar, Manash Pratim Sarma

и другие.

Journal of Pure and Applied Microbiology, Год журнала: 2024, Номер 18(3), С. 1708 - 1720

Опубликована: Июль 24, 2024

Pigment is the most attractive attribute and integral part of human life. The source pigment used for different applications chemically synthesised. However, produced from natural sources (such as plants microorganisms) can also be applied a coloring agent. In addition to being colorants, many pigments are fascinating bioactive substances with possible health benefits. Agrochemicals, food, medicine, pharmacology, cosmetics, numerous other industries use these compounds. this study, total 7 pigmented colonies were isolated soil samples areas Assam. Out colonies, 3 showed orange color 4 yellow color. Based on similarity growth pattern high intensity pigmentation one colony each was picked further studies. denoted S1 S2, respectively. With help Bergey’s Manual Determinative Bacteriology strains preliminary identified based their morphological, microscopic, biochemical characteristics after that 16S rRNA gene sequencing helped identify bacteria at species level (S1) Micrococcus aloeverae ON377368 (S2) Exiguobacterium aestuarii ON377409. production rate specific optimized conditions such temperature 37°C, pH 6, NaCl concentrations 1.5-2% good characteristic time interval. Therefore, present study may helpful step towards large-scale manufacture extraction, purification, characterization extracted will lead provide potent eco-friendly dye in industrial sector.

Язык: Английский

Процитировано

0

Enhancing pigment production by a chromogenic bacterium (Exiguobacterium aurantiacum) using tomato waste extract: A Statistical approach DOI Creative Commons
Birhanu Zeleke, Diriba Muleta, Hunduma Dinka

и другие.

Опубликована: Окт. 17, 2024

Abstract There is high demand for microbial pigments as promising alternative synthetic basically safety and economic reasons. This study aimed at the optimization of yellowish-orange pigment production by Exiguobacterium aurantiacum using agro-waste extract growth substrate. Air samples were collected depositional method. Pure cultures producing bacteria isolated subsequent culturing on fresh nutrient agar medium potent isolate was identified MALDI-TOF technique. Culture conditions screened Plackett-Burman design most three significant variables optimized response surface methodology. Fermentation conducted in 150 mL decoctions from which tomato waste selected because higher optical density culture compared to other extracts. Pigment extracted solvent extraction method best based its ability dissolve suspension. The characterized spectroscopic chromatographic techniques. agitation rate, initial pH concentration yeast (p< 0.0001) affecting production. At conditions, 0.96 g/L 4.73 biomass under 1.6 times than un-optimized conditions. analyses demonstrated presence different functional groups carotenoids parts molecule responsible pigmentation extract. potential Hence, current findings strongly encourage further a large-scale level industrial

Язык: Английский

Процитировано

0