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Maglione G, Zinno P, Tropea A, Mussagy CU, Dufossé L, Giuffrida D, Mondello A. Microbes' role in environmental pollution and remediation: a bioeconomy focus approach. AIMS Microbiol 2024; 10:723-755. [PMID: 39219757 PMCID: PMC11362270 DOI: 10.3934/microbiol.2024033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 08/07/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
Bioremediation stands as a promising solution amid the escalating challenges posed by environmental pollution. Over the past 25 years, the influx of synthetic chemicals and hazardous contaminants into ecosystems has required innovative approaches for mitigation and restoration. The resilience of these compounds stems from their non-natural existence, distressing both human and environmental health. Microbes take center stage in this scenario, demonstrating their ability of biodegradation to catalyze environmental remediation. Currently, the scientific community supports a straight connection between biorefinery and bioremediation concepts to encourage circular bio/economy practices. This review aimed to give a pre-overview of the state of the art regarding the main microorganisms employed in bioremediation processes and the different bioremediation approaches applied. Moreover, focus has been given to the implementation of bioremediation as a novel approach to agro-industrial waste management, highlighting how it is possible to reduce environmental pollution while still obtaining value-added products with commercial value, meeting the goals of a circular bioeconomy. The main drawbacks and challenges regarding the feasibility of bioremediation were also reported.
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Affiliation(s)
- Giuseppe Maglione
- Institute for the Animal Production System in the Mediterranean Environment (ISPAAM), National Research Council, Piazzale Enrico Fermi 1, 80055 Portici, Italy
| | - Paola Zinno
- Institute for the Animal Production System in the Mediterranean Environment (ISPAAM), National Research Council, Piazzale Enrico Fermi 1, 80055 Portici, Italy
| | - Alessia Tropea
- Messina Institute of Technology c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, former Veterinary School, University of Messina, Viale G. Palatucci snc 98168–Messina, Italy
| | - Cassamo U. Mussagy
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota 2260000, Chile
| | - Laurent Dufossé
- CHEMBIOPRO Laboratoire de Chimie et Biotechnologie des Produits Naturels, ESIROI Agroalimentaire, Université de La Réunion, 15 Avenue René Cassin, F-97400 Saint-Denis, Ile de La Réunion, France
| | - Daniele Giuffrida
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Via Consolare Valeria, 98125 Messina, Italy
| | - Alice Mondello
- Department of Economics, University of Messina, Via dei Verdi, 75, 98122 Messina, Italy
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Acharya K, Shaw S, Bhattacharya SP, Biswas S, Bhandary S, Bhattacharya A. Pigments from pathogenic bacteria: a comprehensive update on recent advances. World J Microbiol Biotechnol 2024; 40:270. [PMID: 39030429 DOI: 10.1007/s11274-024-04076-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 07/08/2024] [Indexed: 07/21/2024]
Abstract
Bacterial pigments stand out as exceptional natural bioactive compounds with versatile functionalities. The pigments represent molecules from distinct chemical categories including terpenes, terpenoids, carotenoids, pyridine, pyrrole, indole, and phenazines, which are synthesized by diverse groups of bacteria. Their spectrum of physiological activities encompasses bioactive potentials that often confer fitness advantages to facilitate the survival of bacteria amid challenging environmental conditions. A large proportion of such pigments are produced by bacterial pathogens mostly as secondary metabolites. Their multifaceted properties augment potential applications in biomedical, food, pharmaceutical, textile, paint industries, bioremediation, and in biosensor development. Apart from possessing a less detrimental impact on health with environmentally beneficial attributes, tractable and scalable production strategies render bacterial pigments a sustainable option for novel biotechnological exploration for untapped discoveries. The review offers a comprehensive account of physiological role of pigments from bacterial pathogens, production strategies, and potential applications in various biomedical and biotechnological fields. Alongside, the prospect of combining bacterial pigment research with cutting-edge approaches like nanotechnology has been discussed to highlight future endeavours.
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Affiliation(s)
- Kusumita Acharya
- AMR-Research Laboratory, Department of Biological Sciences, Adamas University, Barasat-Barrackpore Rd, Kolkata, 700126, India
| | - Swarna Shaw
- AMR-Research Laboratory, Department of Biological Sciences, Adamas University, Barasat-Barrackpore Rd, Kolkata, 700126, India
| | | | - Shatarupa Biswas
- AMR-Research Laboratory, Department of Biological Sciences, Adamas University, Barasat-Barrackpore Rd, Kolkata, 700126, India
| | - Suman Bhandary
- AMR-Research Laboratory, Department of Biological Sciences, Adamas University, Barasat-Barrackpore Rd, Kolkata, 700126, India.
| | - Arijit Bhattacharya
- AMR-Research Laboratory, Department of Biological Sciences, Adamas University, Barasat-Barrackpore Rd, Kolkata, 700126, India.
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Machuca Á, Hernández VA, Deramond C, Contreras-Machuca P. The colorful fungi of the Chilean forests: Production, chemical characterization and possible applications of their pigments. ADVANCES IN APPLIED MICROBIOLOGY 2024; 128:1-40. [PMID: 39059841 DOI: 10.1016/bs.aambs.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
In Chile, as in the rest of the world, only a small fraction of the fungal diversity inhabiting the wide variety of its ecosystems is known. This diversity must hide an inestimable richness of species with interesting biotechnological potential, including fungal pigment producers. Recently, interest in filamentous fungi has increased significantly due to their importance as alternative sources of pigments and colorants that are environmentally and human health friendly. As a result, fungal pigments are gaining importance in various industrial applications, such as food, textiles, pharmaceuticals, cosmetics, etc. The increasing consumer demand for "green label" natural colorants requires the exploration of different ecosystems in search of new fungal species that are efficient producers of different pigment with a wide range of colors and ideally without the co-production of mycotoxins. However, advances are also needed in pigment production processes through fermentation, scale-up from laboratory to industrial scale, and final product formulation and marketing. In this respect, the journey is still full of challenges for scientists and entrepreneurs. This chapter describes studies on pigment-producing fungi collected in the forests of central-southern Chile. Aspects such as the exploration of potential candidates as sources of extracellular pigments, the optimization of pigment production by submerged fermentation, methods of pigment extraction and purification for subsequent chemical characterization, and formulation (by microencapsulation) for potential cosmetic applications are highlighted. This potential use is due to the outstanding bioactivity of most fungal pigments, making them interesting functional ingredients for many applications. Finally, the use of fungal pigments for textile and spalting applications is discussed.
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Affiliation(s)
- Ángela Machuca
- School of Science and Technology, Universidad de Concepción, Campus Los Ángeles, Los Ángeles, Chile.
| | - Vicente A Hernández
- Biotechnology Center and Faculty of Forestry Sciences, Universidad de Concepción, Concepción, Chile
| | - Christian Deramond
- School of Science and Technology, Universidad de Concepción, Campus Los Ángeles, Los Ángeles, Chile
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Das S, Chandukishore T, Ulaganathan N, Dhodduraj K, Gorantla SS, Chandna T, Gupta LK, Sahoo A, Atheena PV, Raval R, Anjana PA, DasuVeeranki V, Prabhu AA. Sustainable biorefinery approach by utilizing xylose fraction of lignocellulosic biomass. Int J Biol Macromol 2024; 266:131290. [PMID: 38569993 DOI: 10.1016/j.ijbiomac.2024.131290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 03/20/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
Lignocellulosic biomass (LCB) has been a lucrative feedstock for developing biochemical products due to its rich organic content, low carbon footprint and abundant accessibility. The recalcitrant nature of this feedstock is a foremost bottleneck. It needs suitable pretreatment techniques to achieve a high yield of sugar fractions such as glucose and xylose with low inhibitory components. Cellulosic sugars are commonly used for the bio-manufacturing process, and the xylose sugar, which is predominant in the hemicellulosic fraction, is rejected as most cell factories lack the five‑carbon metabolic pathways. In the present review, more emphasis was placed on the efficient pretreatment techniques developed for disintegrating LCB and enhancing xylose sugars. Further, the transformation of the xylose to value-added products through chemo-catalytic routes was highlighted. In addition, the review also recapitulates the sustainable production of biochemicals by native xylose assimilating microbes and engineering the metabolic pathway to ameliorate biomanufacturing using xylose as the sole carbon source. Overall, this review will give an edge on the bioprocessing of microbial metabolism for the efficient utilization of xylose in the LCB.
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Affiliation(s)
- Satwika Das
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - T Chandukishore
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Nivedhitha Ulaganathan
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Kawinharsun Dhodduraj
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Sai Susmita Gorantla
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Teena Chandna
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Laxmi Kumari Gupta
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Ansuman Sahoo
- Biochemical Engineering Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - P V Atheena
- Department of Biotechnology, Manipal Institute of Technology, Manipal 576104, Karnataka, India
| | - Ritu Raval
- Department of Biotechnology, Manipal Institute of Technology, Manipal 576104, Karnataka, India
| | - P A Anjana
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Venkata DasuVeeranki
- Biochemical Engineering Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Ashish A Prabhu
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India.
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Maurya KK, Tripathi AD, Kumar D, Ramyaa TS, Paul V, Agarwal A. Growth Kinetics of Prodigiosin (Food Color) Produced by Novel Serratia marcescens bhu prodig Under Submerged Fermentation (SMF). Mol Biotechnol 2023:10.1007/s12033-023-00925-6. [PMID: 37907812 DOI: 10.1007/s12033-023-00925-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/20/2023] [Indexed: 11/02/2023]
Abstract
Prodigiosin is a promising food color due to its antibacterial, antimalarial, antimycotic characteristics, immunomodulating, and antitumor activities. Novel prodigiosin producing strain isolated from sugarcane field soil of Banaras Hindu University, India, characterized as Serratia marcescens bhu prodig by 16 sRNA. The effect of carbon, nitrogen source, and physical parameters (pH and temperature) on pigment yield was studied. The highest amount of pigment produced, which was 800.95 ± 0.05 mg/L, was detected when sorbitol and peptone were used as nitrogen and carbon source with pH 7 at 30 °C. The optimized condition scale-up in a bioreactor with a working capacity of 3.0 L, gave maximum pigment yield of 825 ± 0.05 mg/L with µ (Maximum specific growth rate), Yp/x, which represents the product yield coefficient, and Yp/s, which signifies the specific product yield coefficient and productivity of 0.3/h, 0.62, 0.80, and 0.02 g/L/h, respectively, after 72 h of cultivation in submerged fermentation (SMF). The isolated pigment was characterized as prodigiosin by the analysis of spectral data and GC-MS. The mass spectrophotometry investigation characterized pigment as 4-methoxy-5(5 methyl-4-pentyl-2H-pyrrol-2-ylidene)- 2,2-bipyrrole ring structure. The GC-MS chromatogram showed m/z of 323, representing prodigiosin. The prodigiosin yield and productivity obtained in the current finding were higher than in previous reports.
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Affiliation(s)
- Kamlesh Kumar Maurya
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Abhishek Dutt Tripathi
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India.
| | - Deepak Kumar
- Department of Microbiology Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - T S Ramyaa
- Department of Microbiology, Thiagrajar College, Madurai, Tamilnadu, India
| | - Veena Paul
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Aparna Agarwal
- Department of Food and Nutrition and Food Technology, Lady Irwin College, Delhi University, New Delhi, India
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Gaur V, Bera S. Microbial canthaxanthin: an orange-red keto carotenoid with potential pharmaceutical applications. BIOTECHNOLOGIA 2023; 104:315-328. [PMID: 37850112 PMCID: PMC10578118 DOI: 10.5114/bta.2023.130733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 03/21/2023] [Accepted: 06/07/2023] [Indexed: 10/19/2023] Open
Abstract
Canthaxanthin is an orange-red keto-carotenoid that occurs naturally and is also manufactured by synthetic methods for regular applications. In nature, canthaxanthin mainly exists in microbes such as different bacterial species, fungi, and algae, as well as in animals such as crustaceans, certain fishes, and birds. However, the amount of canthaxanthin produced in these organisms varies significantly. Additionally, the compound can be generated from genetically modified organisms using genetic engineering techniques Canthaxanthin finds extensive application as an additive in animal feed, in the pharmaceutical industry, as a coloring agent for various food products, and in cosmetics. It has powerful antioxidant properties and plays a role in lipid metabolism, neuroprotection, and immunomodulation. This article gives an extensive insight into the structure and methods of synthesis of canthaxanthin along with its various newly discovered sources identified so far. The significant applications of canthaxanthin, particularly its role in pharmaceuticals, are critically evaluated. Furthermore, the article discusses future aspects and challenges associated with canthaxanthin production and regulation.
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Affiliation(s)
- Vinita Gaur
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Surojit Bera
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
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Olukanni OD, Abiola T, Dada JB, Dare PA, Ayoade F, Olukanni AT. Resourcefulness of propylprodigiosin isolated from Brevundimonas olei strain RUN-D1. AMB Express 2023; 13:71. [PMID: 37422847 DOI: 10.1186/s13568-023-01579-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023] Open
Abstract
A novel red-pigmented bacterium was isolated from a water sample collected at Osun River, Ede. Morphological and 16 S rRNA gene sequencing revealed that the bacterium is a strain of Brevundimonas olei, while its red pigment was identified using UV-visible, FTIR and GCMS as a derivative of propylprodigiosin. The maximum absorbance of 534 nm, the FTIR's 1344 cm- 1 peak of prodigiosin's methoxyl C-O interaction, and the molecular ions from GCMS confirmed the pigment's identity. The pigments production was temperature-sensitive (25 °C), lost at > 28 °C, and in the presence of urea and humus. In addition, the pigment turned pink in the presence of hydrocarbons, while its red colour was retained with KCN and Fe2SO4, and enhanced by methylparaben. Furthermore, the pigment is stable in high temperature, salt, and acidic conditions, but changed to yellow in alkaline solution. The pigment, identified as propylprodigiosin (m/z 297), demonstrated broad-spectrum antibacterial activities against clinically important strains of Staphylococcus aureus (ATCC25923), Pseudomonas aeruginosa (ATCC9077), Bacillus cereus (ATCC10876), Salmonella typhi (ATCC13311), and Escherichia coli (DSM10974). The ethanol extract has the highest zones of inhibition of 29 ± 3.0, 26 ± 1.2, 22 ± 3.0, 22 ± 1.5, and 20 ± 2.0 mm, respectively. Furthermore, the acetone pigments interacted with cellulose and glucose such that increasing glucose concentrations showed linearity at 425 nm. Finally, the fastness of the pigments to fabrics was excellent, with percentage fadedness of 0 and - 43% light and washing tests, respectively, in the presence of Fe2SO4 as the mordant. The antibacterial nature of prodigiosin solutions and their good textile fastness to fabrics could be essential in manufacturing antiseptic materials such as bandages, hospital clothing and agricultural applications such as tubers preservation.Key points.
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Affiliation(s)
- Olumide D Olukanni
- Department of Biochemistry, Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria.
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria.
| | - Temitope Abiola
- Department of Biochemistry, Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
| | - Jonathan B Dada
- Department of Biochemistry, Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
| | - Peter A Dare
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
- Department of Biological Sciences, Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
| | - Femi Ayoade
- Department of Biological Sciences, Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
| | - Adedayo T Olukanni
- Department of Biochemistry, Redeemer's University, PMB 230 Ede, Ede, Osun, Nigeria
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Silva PBVD, Brenelli LB, Mariutti LRB. Waste and by-products as sources of lycopene, phytoene, and phytofluene - Integrative review with bibliometric analysis. Food Res Int 2023; 169:112838. [PMID: 37254412 DOI: 10.1016/j.foodres.2023.112838] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 04/03/2023] [Accepted: 04/12/2023] [Indexed: 06/01/2023]
Abstract
Food loss and waste are severe social, economic, and environmental issues. An example is the incorrect handling of waste or by-products used to obtain bioactive compounds, such as carotenoids. This review aimed to present a comprehensive overview of research on lycopene, phytoene, and phytofluene obtained from waste and by-products. In this study, an integrative literature approach was coupled with bibliometric analysis to provide a broad perspective of the topic. PRISMA guidelines were used to search studies in the Web of Science database systematically. Articles were included if (1) employed waste or by-products to obtain lycopene, phytoene, and phytofluene or (2) performed applications of the carotenoids previously extracted from waste sources. Two hundred and four articles were included in the study, and the prevalent theme was research on the recovery of lycopene from tomato processing. However, the scarcity of studies on colorless carotenoids (phytoene and phytofluene) was evidenced, although these are generally associated with lycopene. Different technologies were used to extract lycopene from plant matrices, with a clear current trend toward choosing environmentally friendly alternatives. Microbial production of carotenoids from various wastes is a highly competitive alternative to conventional processes. The results described here can guide future forays into the subject, especially regarding research on phytoene and phytofluene, potential and untapped sources of carotenoids from waste and by-products, and in choosing more efficient, safe, and environmentally sustainable extraction protocols.
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Affiliation(s)
- Pedro Brivaldo Viana da Silva
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80, Campinas, São Paulo, Brazil
| | | | - Lilian Regina Barros Mariutti
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80, Campinas, São Paulo, Brazil.
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Thakur M, Modi VK. Biocolorants in food: Sources, extraction, applications and future prospects. Crit Rev Food Sci Nutr 2022; 64:4674-4713. [PMID: 36503345 DOI: 10.1080/10408398.2022.2144997] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Color of a food is one of the major factors influencing its acceptance by consumers. At presently synthetic dyes are the most commonly used food colorant in food industry by providing more esthetically appearance and as a means to quality control. However, the growing concern about health and environmental due to associated toxicity with synthetic food colorants has accelerated the global efforts to replace them with safer and healthy food colorants obtained from natural resources (plants, microorganisms, and animals). Further, many of these biocolorants not only provide myriad of colors to the food but also exert biological properties, thus they can be used as nutraceuticals in foods and beverages. In order to understand the importance of nature-derived pigments as food colorants, this review provides a thorough discussion on the natural origin of food colorants. Following this, different extraction methods for isolating biocolorants from plants and microbes were also discussed. Many of these biocolorants not only provide color, but also have many health promoting properties, for this reason their physicochemical and biological properties were also reviewed. Finally, current trends on the use of biocolorants in foods, and the challenges faced by the biocolorants in their effective utilization by food industry and possible solutions to these challenges were discussed.
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Affiliation(s)
- Monika Thakur
- Amity Institute of Food Technology, Amity University, Noida, Uttar Pradesh, India
| | - V K Modi
- Amity Institute of Food Technology, Amity University, Noida, Uttar Pradesh, India
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Eco-friendly dyeing of polyamide and polyamide-elastane knits with living bacterial cultures of two Streptomyces sp. strains. World J Microbiol Biotechnol 2022; 39:32. [PMID: 36462123 DOI: 10.1007/s11274-022-03473-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/17/2022] [Indexed: 12/04/2022]
Abstract
Given the environmental burden of textile industry, especially of dyeing processes and the volume of synthetic dyes and surfactants, the intensive development of the greener approaches is under way. Herein, an environmentaly-friendly dyeing of polyamide (PA) and PA/Elastane (PA/EA) knits using live bacterial approach in water environment, completely eliminating usage of textile auxiliaries is described. A total of 12 pigment-producing Streptomyces strains were isolated and purified from soil and rizoshere or bark of smoke tree Cotinus coggygria samples. The antibacterial, antifungal and cytotoxic effects of crude bacterial extracts were tested. Antimicrobial effect was obtained by the majority of extracts but only two streptomycetes extracts, 11-5 and BPS51, showed moderate cytotoxicity against HaCaT human cell line. This was the reason to select 11-5 and BPS51 strains for the dyeing of the textile materials. Excellent properties of dyeing wool, silk and PA are achieved initially using live cultures, and the bioprocess is optimized on commercial PA and PA/EA knits used for stockings production. Satisfactory coloration of both knits is achieved with dynamic conditions (culture shaking at 180 rpm over 5-14 days at 30 ºC) giving the best coloration results, except in the case of the PA sample dyed with a bacterial strain 11-5. The prolongation of dyeing time leads to higher color yields independently of fabric and bacteria strain. Although the color differences between the samples before and after washing are observed, washing fastness after three washing cycles can be considered as satisfactory.
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Pranaw K, Drewniak L, Nain L, Singh S. Editorial: Waste to wealth: A sustainable circular bioeconomy approach. Front Bioeng Biotechnol 2022; 10:1010811. [PMID: 36246350 PMCID: PMC9562582 DOI: 10.3389/fbioe.2022.1010811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/09/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Kumar Pranaw
- Department of Environmental Microbiology and Biotechnology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Warsaw, Poland
- *Correspondence: Kumar Pranaw,
| | - Lukasz Drewniak
- Department of Environmental Microbiology and Biotechnology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Warsaw, Poland
| | - Lata Nain
- Division of Microbiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Surender Singh
- Department of Microbiology, Central University of Haryana, Mahendergarh, India
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12
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Pigment Production by Paracoccus spp. Strains through Submerged Fermentation of Valorized Lignocellulosic Wastes. FERMENTATION 2022. [DOI: 10.3390/fermentation8090440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Due to the increasing emphasis on the circular economy, research in recent years has focused on the feasibility of using biomass as an alternative energy source. Plant biomass is a potential substitute for countering the dependence on depleting fossil-derived energy sources and chemicals. However, in particular, lignocellulosic waste materials are complex and recalcitrant structures that require effective pretreatment and enzymatic saccharification to release the desired saccharides, which can be further fermented into a plethora of value-added products. In this context, pigment production from waste hydrolysates is a viable ecological approach to producing safe and natural colorings, which are otherwise produced via chemical synthesis and raise health concerns. The present study aims to evaluate two such abundant lignocellulosic wastes, i.e., wheat straw and pinewood sawdust as low-cost feedstocks for carotenoid production with Paracoccus strains. An alkali pretreatment approach, followed by enzymatic saccharification using an indigenous lab-isolated fungal hydrolase, was found to be effective for the release of fermentable sugars from both substrates. The fermentation of the pretreated sawdust hydrolysate by Paracoccus aminophilus CRT1 and Paracoccus kondratievae CRT2 resulted in the highest carotenoid production, 631.33 and 758.82 μg/g dry mass, respectively. Thus, the preliminary but informative research findings of the present work exhibit the potential for sustainable and economically feasible pigment production from lignocellulosic feedstocks after optimal process development on the pilot scale.
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