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B T SK, Hebbar UH, Annapurna Singh S. Isolation, purification, and physio-chemical characterization of melanin pigment from nigerseed hulls ( Guizotia abyssinica). Prep Biochem Biotechnol 2024:1-9. [PMID: 38995969 DOI: 10.1080/10826068.2024.2376579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
Plant melanin, a natural pigment, has gained significant attention recently due to its potential therapeutic and industrial applications. In this study, melanin pigments were extracted from Nigerseed hulls (NH) via alkali and acid extraction methods, followed by acid hydrolysis, organic solvent treatment, and repeated precipitation. The solubility of NH melanin was assessed, revealing solubility in alkali and dimethyl sulfoxide (DMSO) but insolubility in other common organic solvents. High-performance liquid chromatography (HPLC) was employed to measure the purity of NH melanin in comparison to standard melanin, while elemental analysis indicated a similarity between melanin extracted from nigerseed hulls and the standard counterpart. LC-MS data revealed a molecular weight of NH melanin. Furthermore, the stability of melanin was evaluated under varying conditions including temperature, oxidants, reducing agents, light exposure, and metal ion presence. Results demonstrated significant effects of Mg2+, Cu2+, and Fe2+ metal ions on melanin stability, with a minor effect observed for Ca2+, while sodium hyposulfite was found to destabilize the pigments. Our findings suggest that nigerseed hulls hold promise as a novel source for efficient melanin production, with potential applications in the food sector, food packaging, and biomedical fields.
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Affiliation(s)
- Sunil Kumar B T
- Department of Traditional Foods and Applied Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Umesh H Hebbar
- Department of Food Engineering, CSIR-Central Food Technological Research Institute, Mysuru, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sridevi Annapurna Singh
- Department of Traditional Foods and Applied Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Santos KFDN, Oliveira MS, Ferreira EPDB, Amaral ADG, Martin-Didonet CCG. Physicochemical characterization of the brown pigment produced by Azospirillum brasilense HM053 using tryptophan as precursor. Braz J Microbiol 2024:10.1007/s42770-024-01433-8. [PMID: 38954221 DOI: 10.1007/s42770-024-01433-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 06/18/2024] [Indexed: 07/04/2024] Open
Abstract
Microorganisms are known to be a promising source of biopigments because they are easy to obtain, can be produced on a commercial scale, and are environmentally friendly. Therefore, the aim of this work was to characterize a brown pigment (BP) produced by HM053 in NFbHPN-lactate medium. The BP was extracted from the pellet (BPP) or supernatant (BPS), in the presence (BPPTrp, BPSTrp) or absence (BPPw, BPSw) of tryptophan (Trp). The UV-vis results were similar among all BP samples and compared with commercial melanin used as a standard, and the maximum absorption was observed around 200-220 nm. FTIR spectra showed that BP and commercial melanin had slight differences, with a small band between 3000-2840 cm- 1, related to C-H in the CH2 and CH3 aliphatic groups, which is not observed in the commercial melanin. Between BPP and BPS showed a different structure with bands in the region 1230-1070 cm- 1 related to groups C-O. The thermogravimetric curves for BPSw and BPSTrp showed similar behavior, with 4 stages of mass loss. The similarity between BPPw and BPPTrp with 2 stages of mass loss was also observed. Scanning electron microscopy results showed morphological differences between BPP and BPS, where BPP had a physical structure more homogeneous and a regular flat surface, while the BPS physical structure did not seem homogeneous and the surface was uneven with some spherical structures as commercial melanin.
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Affiliation(s)
- Karina Freire d'Eça Nogueira Santos
- Embrapa Arroz e Feijão, Rodovia GO-462, Km12, Fazenda Capivara, Santo Antônio de Goiás,, GO, Brazil.
- Campus Anápolis de Ciências Exatas e Tecnológicas Henrique Santillo, UEG, Anápolis, GO, Brazil.
| | - Marilene Silva Oliveira
- Campus Anápolis de Ciências Exatas e Tecnológicas Henrique Santillo, UEG, Anápolis, GO, Brazil
- Simple Agro Corporation, Rua Augusta Bastos, 866, Setor Central, Rio Verde, GO, Brazil
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Zhang S, Yuan G, Peng Z, Li X, Huang Y, Yin C, Cui L, Xiao G, Jiao Z, Wang L, Deng X, Qiu Z, Yan C. Chemical composition analysis and transcriptomics reveal the R2R3-MYB genes and phenol oxidases regulating the melanin formation in black radish. Int J Biol Macromol 2024; 271:132627. [PMID: 38797290 DOI: 10.1016/j.ijbiomac.2024.132627] [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: 03/26/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Melanins are dark-brown to black-colored biomacromolecules which have been thoroughly studied in animals and microorganisms. However, the biochemical and molecular basis of plant melanins are poorly understood. We first characterized melanin from the black radish (Raphanus sativus var. niger) 'HLB' through spectroscopic techniques. p-Coumaric acid was identified as the main precursor of radish melanin. Moreover, a joint analysis of transcriptome and coexpression network was performed for the two radish accessions with black and white cortexes, 'HLB' and '55'. A set of R2R3-type RsMYBs and enzyme-coding genes exhibited a coexpression pattern, and were strongly correlated with melanin formation in radish. Transient overexpression of two phenol oxidases RsLAC7 (laccase 7) or RsPOD22-1 (peroxidase 22-1) resulted in a deeper brown color around the infiltration sites and a significant increase in the total phenol content. Furthermore, co-injection of the transcriptional activator RsMYB48/RsMYB97 with RsLAC7 and/or RsPOD22-1, markedly increased the yield of black extracts. Spectroscopic analyses revealed that these extracts are similar to the melanin found in 'HLB'. Our findings advance the understanding of structural information and the transcriptional regulatory mechanism underlying melanin formation in radish.
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Affiliation(s)
- Shuting Zhang
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Guoli Yuan
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Zhaoxin Peng
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Xiaoyao Li
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Yan Huang
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China.
| | - Chaomin Yin
- Institute of Agro-Products Processing and Nuclear-Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
| | - Lei Cui
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Guilin Xiao
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Zhenbiao Jiao
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Liping Wang
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Xiaohui Deng
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Zhengming Qiu
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
| | - Chenghuan Yan
- Key Laboratory of Vegetable Ecological Cultivation on Highland, Ministry of Agriculture and Rural Affairs, Hubei Hongshan Laboratory, Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430063, China; Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement, Wuhan, Hubei 430063, China.
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El Ghoubary NM, Fadel M, Abdel Fadeel D. Non-pigmented laser hair removal mediated via sepia melanin nanoparticles: in vivo study on albino mice. Drug Dev Ind Pharm 2024; 50:524-536. [PMID: 38752842 DOI: 10.1080/03639045.2024.2356813] [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: 01/17/2024] [Accepted: 05/13/2024] [Indexed: 06/23/2024]
Abstract
OBJECTIVES Melanin is considered the main chromophore for laser hair removal. Due to a lack of laser-absorbing chromophores, removing non-pigmented hair with laser is quite problematic with unsatisfactory outcomes. This problem could be solved by delivering more melanin to the area around the hair follicle and enhancing that area as a target for light absorption. The insolubility of Sepia melanin as an exogenous dye, in most solvents, limits its bioavailability and thus its clinical use. METHODS In our study, to overcome the solubility problems and increase the bioavailability of melanin for biomedical and cosmetic applications, natural sepia melanin was loaded in different nano-delivery systems (spanlastics and transfersomes) to be delivered to the hair follicles. The different formulations of melanin were prepared and characterized. In vivo skin deposition and histopathological studies were conducted on albino mice. RESULTS Transmission electron microscopy (TEM) showed the spherical shape of the prepared vesicles with an average particle size of 252 and 262 nm and zeta potential of -22.5 and -35 mV for melanin spanlastics and melanin transfersomes, respectively. Histopathological examination of hair follicles and pilosebaceous glands for the irradiated and non-irradiated albino mice skin was studied post the application of the prepared formulations topically and subcutaneously. Qualitative statistical analysis was conducted and melanin transfersomes and melanin spanlastics showed significant damage to pilosebaceous glands and hair follicles with a p-value of 0.031 and 0.009 respectively. CONCLUSION Melanin nanovesicles as transfersomes and spanlastics could be considered a promising approach for the removal of non-pigmented hair.
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Affiliation(s)
- Nayera Mohamed El Ghoubary
- Pharmaceutical Technology Unit, Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
| | - Maha Fadel
- Pharmaceutical Technology Unit, Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
| | - Doaa Abdel Fadeel
- Pharmaceutical Technology Unit, Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
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Medina-Armijo C, Yousef I, Berná A, Puerta A, Esteve-Núñez A, Viñas M, Prenafeta-Boldú FX. Characterization of melanin from Exophiala mesophila with the prospect of potential biotechnological applications. FRONTIERS IN FUNGAL BIOLOGY 2024; 5:1390724. [PMID: 38812984 PMCID: PMC11134573 DOI: 10.3389/ffunb.2024.1390724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/25/2024] [Indexed: 05/31/2024]
Abstract
Introducion Fungal melanin is an underexplored natural biomaterial of great biotechnological interest in different areas. This study investigated the physical, chemical, electrochemical, and metal-binding properties of melanin extracted from the metallotolerant black fungus Exophiala mesophila strain IRTA-M2-F10. Materials and methods Specific inhibitory studies with tricyclazole and biochemical profiling of whole cells by synchrotron radiation-based Fourier-transform infrared spectral microscopy (SR-FTIRM) were performed. An optimized extraction protocol was implemented, and purified fungal melanin was characterized using an array of spectrophotometric techniques (UV-Vis, FTIR, and EPR) and by cyclic voltammetry (CV) experiments. The metal-binding capacity of melanin extracts was also assessed by using Cr(VI) as a model heavy metal. Results Inhibitory studies indicated that 1,8-dihydroxynaphthalene may be the main precursor molecule of E. mesophila melanin (DHN-melanin). The biochemical characterization of fungal melanin extracts were benchmarked against those from two melanins comprising the precursor molecule L-3,4-dihydroxiphenylalanine (DOPA-melanin): extracts from the ink of the cephalopod Sepia officinalis and DOPA-melanin synthesized in the laboratory. The CV results of melanin extracts incubated with and without cell suspensions of the electroconductive bacterium Geobacter sulfurreducens were indicative of novel semiquinone/hydroquinone redox transformations specific for each melanin type. These interactions may play an important role in cation exchange for the adsorption of metals and in microbial interspecies electron transfer processes. Discussion The obtained results provided further evidence for the DHN-nature of E. mesophila melanin. The FTIR profiling of melanin extracts exposed to Cr(VI), compared to unexposed melanin, resulted in useful information on the distinct surface-binding properties of fungal melanin. The parameters of the Langmuir and Freundlicht isotherms for the adsorption of Cr(VI) were determined and compared to bibliographic data. Altogether, the inherent properties of fungal melanin suggest its promising potential as a biomaterial for environmental applications.
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Affiliation(s)
- Cristy Medina-Armijo
- Program of Sustainability in Biosystems, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Catalonia, Spain
- Faculty of Pharmacy and Food Sciences, University of Barcelona, Catalonia, Spain
| | - Ibraheem Yousef
- MIRAS Beamline, ALBA Synchrotron Light Source, Cerdanyola del Vallés, Catalonia, Spain
| | | | - Anna Puerta
- Program of Sustainability in Biosystems, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Catalonia, Spain
| | - Abraham Esteve-Núñez
- Department of Chemical Engineering, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - Marc Viñas
- Program of Sustainability in Biosystems, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Catalonia, Spain
| | - Francesc X. Prenafeta-Boldú
- Program of Sustainability in Biosystems, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Catalonia, Spain
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6
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Janahmadi Z, Momeni S, Manoochehri H, Talebi S. Development of an efficient hemostatic material based on cuttlefish ink nanoparticles loaded in cuttlebone biocomposite. J Mater Chem B 2024; 12:4172-4183. [PMID: 38591253 DOI: 10.1039/d3tb01966g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Traumatic hemorrhage is one of the main causes of mortality in civilian and military accidents. This study aimed to evaluate the effectiveness of cuttlefish bone (cuttlebone, CB) and CB loaded with cuttlefish ink (CB-CFI) nanoparticles for hemorrhage control. CB and CB-CFI were prepared and characterized using different methods. The hemostasis behavior of constructed biocomposites was investigated in vitro and in vivo using a rat model. Results showed that CFI nanoparticles (NPs) are uniformly dispersed throughout the CB surface. CB-CFI10 (10 mg CFI in 1.0 g of CB) showed the best blood clotting performance in both in vitro and in vivo tests. In vitro findings revealed that the blood clotting time of CB, CFI, and CB-CFI10 was found to be 275.4 ± 12.4 s, 229.9 ± 19.9 s, and 144.0 ± 17.5 s, respectively. The bleeding time in rat liver injury treated with CB, CFI, and CB-CFI10 was 158.1 ± 9.2 s, 114.0 ± 5.7 s, and 46.8 ± 2.7 s, respectively. CB-CFI10 composite resulted in more reduction of aPTT (11.31 ± 1.51 s) in comparison with CB (17.34 ± 2.12 s) and CFI (16.79 ± 1.46 s) (p < 0.05). Furthermore, CB and CB-CFI10 exhibited excellent hemocompatibility. The CB and CB-CFI did not show any cytotoxicity on human foreskin fibroblast (HFF) cells. The CB-CFI has a negative surface charge and may activate coagulation factors through direct contact with their components, including CaCO3, chitin, and CFI-NPs with blood. Thus, the superior hemostatic potential, low cost, abundant, simple, and time-saving preparation process make CB-CFI a very favorable hemostatic material for traumatic bleeding control in clinical applications.
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Affiliation(s)
- Zeinab Janahmadi
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 75147, Iran.
| | - Safieh Momeni
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 75147, Iran.
| | - Hamed Manoochehri
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 75147, Iran.
| | - Shadi Talebi
- Department of Medical Sciences, Yazd Branch, Islamic Azad University, Yazd, Iran
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7
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Alam MZ, Okonkwo CE, Cachaneski-Lopes JP, Graeff CFO, Batagin-Neto A, Tariq S, Varghese S, O'Connor MJ, Albadri AE, Webber JBW, Tarique M, Ayyash M, Kamal-Eldin A. Date fruit melanin is primarily based on (-)-epicatechin proanthocyanidin oligomers. Sci Rep 2024; 14:4863. [PMID: 38418836 PMCID: PMC10901811 DOI: 10.1038/s41598-024-55467-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: 12/08/2023] [Accepted: 02/23/2024] [Indexed: 03/02/2024] Open
Abstract
Plant-based melanin seems to be abundant, but it did not receive scientific attention despite its importance in plant biology and medicinal applications, e.g. photoprotection, radical scavenging, antimicrobial properties, etc. Date fruit melanin (DM) has complex, graphene-like, polymeric structure that needs characterization to understand its molecular properties and potential applications. This study provides the first investigation of the possible molecular composition of DM. High performance size-exclusion chromatography (HPSEC) suggested that DM contains oligomeric structures (569-3236 Da) and transmission electron microscopy (TEM) showed agglomeration of these structures in granules of low total porosity (10-1000 Å). Nuclear magnetic resonance (NMR) spectroscopy provided evidence for the presence of oligomeric proanthocyanidins and electron paramagnetic resonance (EPR) spectroscopy revealed a g-factor in the range 2.0034-2.005. Density functional theory (DFT) calculations suggested that the EPR signals can be associated with oligomeric proanthocyanidin structures having 4 and above molecular units of (-)-epicatechin. The discovery of edible melanin in date fruits and its characterization are expected to open a new area of research on its significance to nutritional and sensory characteristics of plant-based foods.
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Affiliation(s)
- Muneeba Zubair Alam
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - Clinton Emeka Okonkwo
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - João P Cachaneski-Lopes
- Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru, SP, Brazil
| | - Carlos F O Graeff
- Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru, SP, Brazil
- Department of Physics, School of Sciences, São Paulo State University (UNESP), Bauru, SP, Brazil
| | - Augusto Batagin-Neto
- Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru, SP, Brazil
- Institute of Sciences and Engineering, São Paulo State University (UNESP), Itapeva, SP, Brazil
| | - Saeed Tariq
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sabu Varghese
- Core Technology Platforms, New York University Abu Dhabi, 129188, Abu Dhabi, United Arab Emirates
| | - Matthew J O'Connor
- Core Technology Platforms, New York University Abu Dhabi, 129188, Abu Dhabi, United Arab Emirates
| | - Abuzar E Albadri
- Department of Chemistry, College of Science, Qassim University, 51452, Buraidah, Saudi Arabia
| | - J Beau W Webber
- Lab-Tools Ltd., Marlowe Innovation Centre, Marlowe Way, Ramsgate, CT12 6FA, UK
| | - Mohammed Tarique
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates.
- National Water and Energy Center (NWEC), United Arab Emirates University, P.O. Box: 15551, Al-Ain, United Arab Emirates.
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8
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Michael HSR, Subiramanian SR, Thyagarajan D, Mohammed NB, Saravanakumar VK, Govindaraj M, Maheswari KM, Karthikeyan N, Ramesh Kumar C. Melanin biopolymers from microbial world with future perspectives-a review. Arch Microbiol 2023; 205:306. [PMID: 37580645 DOI: 10.1007/s00203-023-03642-5] [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: 05/30/2023] [Revised: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 08/16/2023]
Abstract
Melanin is an amorphous polymer made of heterogeneous functional groups synthesized by diverse organisms including fungi, bacteria, animals, and plants. It was widely acknowledged for its biological processes and its key role in the protection of organisms from environmental stress. Recently, melanin clutches attention in the field of nanobiotechnology, drug delivery, organic semiconductors and bioelectronics, environmental bioremediation, photoprotection, etc., Furthermore, melanin from natural sources like microbial community shows antimicrobial, fighting cancer, radical scavenging, cosmeceuticals, and many therapeutic areas as well. Though the multipotentiality nature of melanin has been put forth, real-world applications still flag fall behind, which might be anticipated to the inadequate and high price essence of natural melanin. However, current bioprocess technologies have paved for the large-scale or industrial production of microbial melanin, which could help in the replacement of synthetic melanin. Thus, this review emphasizes the various sources for melanin, i.e., types-based on its pathways and its chemical structures, functional efficiency, physical properties, and conventional and modern methods of both extraction and characterization. Moreover, an outlook on how it works in the field of medicine, bioremediation, and other related areas provides perspectives on the complete exploitation of melanin in practical applications of medicine and the environment.
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Affiliation(s)
| | - Shri Ranjani Subiramanian
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | - Divyavaahini Thyagarajan
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | - Nazneen Bobby Mohammed
- Department of Biotechnology, Vignan's Foundation for Science Technology and Research, Vadlamudi, Guntur Dist, Andhra Pradesh, India
| | | | - Mageswari Govindaraj
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | | | - Naresh Karthikeyan
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | - Charu Ramesh Kumar
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
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Rudrappa M, Kumar RS, Basavarajappa DS, Bhat MP, Nagaraja SK, Almansour AI, Perumal K, Nayaka S. Penicillium citrinum NP4 mediated production, extraction, physicochemical characterization of the melanin, and its anticancer, apoptotic, photoprotection properties. Int J Biol Macromol 2023:125547. [PMID: 37356688 DOI: 10.1016/j.ijbiomac.2023.125547] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/08/2023] [Accepted: 06/21/2023] [Indexed: 06/27/2023]
Abstract
The biopolymer melanin is reported for many biological processes to secure biological entities over unfavorable environmental factors. The present study aimed to isolate soil fungi and screen for melanin production. The potent fungus was identified as Penicillium citrinum NP4 based on morphological and molecular characterization with accession number OP070954. Using standardized tyrosine broth conditions melanin was produced by NP4 and extracted by acidification. Extracted melanin exhibited maximum UV-Visible absorption at 223 nm; FTIR peaks validate the occurrence of CO, CN, CH, and CC functional groups present in the indole/pyrrole structure. TLC analysis exhibited a prominent single band with a Retardation factor (Rf) of 0.68, Resonance peaks at 6.621, 7.061, and 7.185 ppm exhibited aromatic hydrogen in the indole/pyrole system in 1H NMR. The EDX peaks confirm the presence of carbon, oxygen, sulfur, and nitrogen elements which are the key factors in melanin structure, and TGA reports the thermal stability of the melanin. An In silico molecular docking approach on lung cancer causing proteins EGFR (3g5z), KRAS (6vc8), and TP53 (8 dc4) were conducted to determine the active binding sites of the melanin, and proteins exhibited binding affinity of -8.0 for 3g5z, -9.8 for 6vc8, and - 10.1 kcal/mol for TP53 protein with melanin. Anticancer activity of the melanin showed significant inhibition of A549 cells in dose-dependent mode with significant IC50 of 65.49 μg/mL; apoptotic examination reveals that melanin showed 46.14 % apoptosis for melanin and 46.36 % apoptosis for standard drug (cisplatin). Melanin exhibited good photoprotection capacity at 1 μg/mL. In conclusion, the extracted melanin exhibited significant results on many biological applications and it can be used in the pharmaceutical field to avoid chemical-based drugs.
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Affiliation(s)
- Muthuraj Rudrappa
- P.G. Department of Studies in Botany, Karnatak University, Dharwad 580001, Karnataka, India
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | | | | | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Karthikeyan Perumal
- Department of Chemistry and Biochemistry, The Ohio State University, 151 W. Woodruff Ave, Columbus, OH 43210, USA
| | - Sreenivasa Nayaka
- P.G. Department of Studies in Botany, Karnatak University, Dharwad 580001, Karnataka, India.
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10
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Islam ATMR, Shinzato K, Miyaoka H, Komaguchi K, Koike K, Arakawa K, Kitamura K, Tanaka N. Isolation and characterization of blackish-brown BY2-melanin accumulated in cultured tobacco BY-2 cells. Biosci Biotechnol Biochem 2023; 87:395-410. [PMID: 36592962 DOI: 10.1093/bbb/zbac214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/21/2022] [Indexed: 01/04/2023]
Abstract
The tobacco BY-2 cell line is one of the most utilized plant cell lines. After long-term culture, the cells turn brown to black, but the causal pigment is unknown. We successfully isolated a blackish-brown pigment from BY-2 cells cultured for 3 weeks. Morphological and spectroscopic analyses indicated that the pigment had similar features to a melanin-like substance reported previously. Furthermore, physicochemical analyses revealed that this pigment possessed most of the properties of melanin-like pigments. In addition, the high nitrogen content suggested that it differed from common plant melanins classified as allomelanins, suggesting a novel eumelanin-like pigment: "BY2-melanin". This is the first example showing that eumelanin-like pigments are produced in the cultures of plant cells for which the accumulation of melanin has not been reported. This tobacco BY-2 cell culture technique may represent a customizable and sustainable alternative to conventional melanin production platforms, with significant potential for industrial and pharmacological applications.
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Affiliation(s)
- Abul Taher Mohammed Rafiqul Islam
- Genome Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Botany, Faculty of Biosciences, University of Barishal, Barishal 8254, Bangladesh
| | - Keita Shinzato
- Advanced Materials Division, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Hiroki Miyaoka
- Advanced Materials Division, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kenji Komaguchi
- Materials Analytical Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kanae Koike
- Facility Management Division, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kenji Arakawa
- Cell Biochemistry, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kenji Kitamura
- Genome Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Gene Science, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Nobukazu Tanaka
- Genome Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Gene Science, Natural Science Center for Basic Research and Development, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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11
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García-Mayorga JC, Rosu HC, Jasso-Salcedo AB, Escobar-Barrios VA. Kinetic study of polydopamine sphere synthesis using TRIS: relationship between synthesis conditions and final properties. RSC Adv 2023; 13:5081-5095. [PMID: 36777934 PMCID: PMC9909370 DOI: 10.1039/d2ra06669f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/27/2023] [Indexed: 02/11/2023] Open
Abstract
The synthesis and characterization of polydopamine (PDA) using dopamine (DA) as the monomer and (hydroxymethyl)aminomethane (TRIS) as the oxidant is studied. The effect of temperature and TRIS concentration on the kinetics of dopamine polymerization is evaluated, and the kinetic parameters are also calculated. Three TRIS concentrations are used to assess their effect on DA polymerization kinetics. The reaction at 1.5 mmol of TRIS shows a sustained increase of the rate constant with temperature from 2.38 × 10-4 to 5.10 × 10-4 when the temperature is increased from 25 to 55 °C; however, not all reactions follow an Arrhenius law. In addition, the correlation between the synthesis parameters and morphological, structural, and thermal properties of polydopamine is established. The morphology of the PDA particles is evaluated by Scanning Electron Microscopy (SEM), the relationships between the diameter, distribution size, and the rate constant. Thermal characterization by Differential Scanning Calorimetry (DSC) shows an endothermic transition around 130 °C associated with the melting of PDA's regular structure. It is supported by structural studies, such as infrared and Raman spectroscopy and X-ray Diffraction (XRD), by observing a broad peak at 23.1° (2θ) that fits with a graphitic-like structure of PDA.
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Affiliation(s)
- Juan Carlos García-Mayorga
- Advanced Materials Department, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San José, Lomas 4a Sección San Luis Potosí SLP 78216 Mexico
| | - Haret-Codratian Rosu
- Advanced Materials Department, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San José, Lomas 4a Sección San Luis Potosí SLP 78216 Mexico
| | - Alma Berenice Jasso-Salcedo
- Departamento de Biociencias y Agrotecnología, Centro de Investigación en Química AplicadaBlvd. Enrique Reyna Hermosillo No. 140SaltilloCoahuila25294Mexico
| | - Vladimir Alonso Escobar-Barrios
- Advanced Materials Department, Instituto Potosino de Investigación Científica y Tecnológica A.C. Camino a la Presa San José, Lomas 4a Sección San Luis Potosí SLP 78216 Mexico
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12
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Liang Y, Zhao Y, Sun H, Dan J, Kang Y, Zhang Q, Su Z, Ni Y, Shi S, Wang J, Zhang W. Natural melanin nanoparticle-based photothermal film for edible antibacterial food packaging. Food Chem 2023; 401:134117. [DOI: 10.1016/j.foodchem.2022.134117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 08/17/2022] [Accepted: 09/01/2022] [Indexed: 10/14/2022]
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13
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El Ghoubary NM, Fadel M, Fadeel DAA. Self-assembled surfactant-based nanoparticles as a platform for solubilization and enhancement of the photothermal activity of sepia melanin. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2023. [DOI: 10.1186/s43088-023-00353-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Abstract
Background
Sepia melanin (SM) is a natural photothermal biopolymer. Its biomedical applications are limited due to its poor solubility and bioavailability. This study aims to prepare a soluble formulation of sepia melanin to enhance its solubility, in turn, its bioavailability, and its use in photothermal therapy of cancer. SM was extracted from a sepia ink sac and prepared as insoluble powdered (SM) which is identified by FTIR, 1H-NMR, thermogravimetric analysis (TGA), and scanning electron microscope. SM was self-assembled using tween 80 into dispersed nanoparticles (SM-NP-Tw). The prepared SM-NP-Tw were fully characterized. The photothermal performance of SM-NP-Tw was assessed. Dark and photocytotoxicity of SM-NP-Tw was studied on HepG2 cells using two wavelengths (660 nm and 820 nm).
Results
The insoluble powdered (SM) exhibited a spherical nanoparticle-like shape as revealed by scanning electron microscope and was soluble only in an alkaline aqueous solution. TGA of SM showed high resistance to thermal degradation indicating good thermal stability. The prepared SM-NP-Tw exhibited a spherical shape with mean sizes of 308 ± 86 nm and a zeta potential of − 25 mv. The cell viability decreased significantly upon increasing the concentration and upon radiation at 820 nm. The results of UV–Vis spectroscopy and the photothermal performance revealed that melanin can absorb light in a wide range of wavelengths including near the IR region; thus, it can emit sufficient heat to kill cells through the photoheat conversion effects.
Conclusion
Sepia melanin nanoparticles self-assembled into tween-based nanostructures could be a promising natural platform for photothermal cancer therapy.
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14
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Rudrappa M, Nayaka S, Kumar RS. In Silico Molecular Docking Approach of Melanin Against Melanoma Causing MITF Proteins and Anticancer, Oxidation-Reduction, Photoprotection, and Drug-Binding Affinity Properties of Extracted Melanin from Streptomyces sp. strain MR28. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04358-4. [PMID: 36692647 DOI: 10.1007/s12010-023-04358-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 01/25/2023]
Abstract
Melanin is a biopolymer reported for diverse biological actions to secure organisms over adverse environmental factors. In the last decade, melanin attributed considerable attention for its use in bioelectronics, photoprotection, environmental bioremediation, and drug discovery. Molecular docking study is the emerging trend in drug discovery for drug designing by targeting proteins. Considering the therapeutic nature of the melanin, we extracted melanin from Streptomyces sp. strain MR28, and it was tested for various biological activities, viz., DPPH free radical scavenging potency, sun protection factor (SPF), drug likeness by SwissADME, molecular docking of melanin on melanocyte-inducing transcription factor (MITF) proteins, cytotoxic activity on A375 malignant melanoma with induction of apoptosis study by flow cytometry, and adsorption study of melanin on doxorubicin and camptothecin drug for drug uptake by melanin. The melanin showed good scavenging potency of DPPH free radicals in a concentration-dependent manner. SPF of 38.64 ± 0.63, 55.53 ± 0.53, and 67.07 ± 0.82 were recorded at 0.06, 0.08, and 0.1 µg/mL, concentrations, respectively. SwissADME screening confirms the drug likeness of melanin. Docking of melanin with MITF proteins exhibited a maximum of - 9.2 kcal/mol binding affinity for 4ATK protein. Cytotoxicity of the melanin drug exhibited good inhibition of melanoma cells in dose-dependent way with significant IC50 of 65.61 µg/mL; apoptotic study reveals melanin showed 64.02% apoptosis for melanin and 33.8% apoptosis for standard drug (doxorubicin). The maximum adsorptions for selected drugs camptothecin and doxorubicin to melanin were recorded at 90 min. In conclusion, the extracted melanin showed significant results over many biological applications and it can be used in the pharmaceutical field to avoid chemical-based drugs.
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Affiliation(s)
- Muthuraj Rudrappa
- P.G. Department of Studies in Botany, Karnatak University, Dharwad, Karnataka, 580003, India
| | - Sreenivasa Nayaka
- P.G. Department of Studies in Botany, Karnatak University, Dharwad, Karnataka, 580003, India.
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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15
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Melanins from the Lichens Lobaria pulmonaria and Lobaria retigera as Eco-Friendly Adsorbents of Synthetic Dyes. Int J Mol Sci 2022; 23:ijms232415605. [PMID: 36555244 PMCID: PMC9779828 DOI: 10.3390/ijms232415605] [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: 11/09/2022] [Revised: 11/22/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Synthetic dyes are widely used in the industry; they are chemically stable, difficult to neutralize, and therefore they are a threat to the environment when released into wastewaters. The dyes have a significant impact on plant performance by impairing photosynthesis, inhibiting growth, and entering the food chain and may finally result in the toxicity, mutagenicity and carcinogenicity of food products. Implementation of the dark piment melanin for the adsorption of the synthetic dyes is a new ecologically friendly approach for bioremediation. The aim of the present work was to study the physico-chemical characteristics of melanins from the lichens Lobaria pulmonaria and Lobaria retigera, analyze their adsorption/desorption capacities towards synthetic dyes, and assess the capacity of melanins to mitigate toxicity of the dyes for a common soil bacterium Bacillus subtilis. Unique chelating properties of melanins determine the perspectives of the use of these high molecular weight polymers for detoxification of xenobiotics.
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16
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Khouqeer G, Alghrably M, Madkhali N, Dhahri M, Jaremko M, Emwas A. Preparation and characterization of natural melanin and its nanocomposite formed by copper doping. NANO SELECT 2022. [DOI: 10.1002/nano.202200095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Ghada Khouqeer
- Department of Physics College of Science Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh Saudi Arabia
| | - Mawadda Alghrably
- Division of Biological and Environmental Sciences and Engineering (BESE) King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia
| | - Nawal Madkhali
- Department of Physics College of Science Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh Saudi Arabia
| | - Manel Dhahri
- Biology Department, Faculty of Science Yanbu Taibah University Yanbu El Bahr Saudi Arabia
| | - Mariusz Jaremko
- Smart‐Health Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological and Environmental Sciences and Engineering (BESE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955‐6900 Saudi Arabia
| | - Abdul‐Hamid Emwas
- Core Labs King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia
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17
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Characterization of Physicochemical Properties of Melanin Produced by Gluconobacter oxydans FBFS 97. FERMENTATION 2022. [DOI: 10.3390/fermentation8110574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The present study aimed to characterize melanin pigment extracted from Gluconobacter oxydans FBFS 97. After 14 days of culture at 28 °C in GY (glucose and yeast extract) liquid-state medium, G. oxydans FBFS97 produce the maximum melanin, up to about 12–15 mg/L. The physicochemical characteristics of the extracted melanin showed an ability to dissolve in 1 mol/L NaOH or 1 mol/L KOH, and insolubility in water and most organic solvents, such as chloroform and petroleum ether. The extracted melanin was confirmed to be exact melanin by ultraviolet-visible spectrophotometry, Fourier-transform infrared spectroscopy, thin-layer chromatography, elemental analysis, and scanning electron microscopy. The UV-visible spectrum of G. oxydans FBFS97 exhibited a maximum absorption peak at 230 nm. Extracted melanin demonstrated significant free radical-scavenging activity by DPPH and ABTS methods. The IC50 value of the extracted melanin for scavenging 50% DPPH radicals was 36.94 μg/mL, and the IC50 value of antioxidant activity for ABTS was 4.06 μg/mL. Hence, G. oxydans FBFS97 has the potential to be a new candidate for melanin production.
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18
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Wu CC, Li H, Yin ZW, Zhang HT, Gao MJ, Zhu L, Zhan XB. Isolation, purification, and characterization of novel melanin from the submerged fermentation of Rhizobium radiobacter. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Abdullah, Cai J, Hafeez MA, Wang Q, Farooq S, Huang Q, Tian W, Xiao J. Biopolymer-based functional films for packaging applications: A review. Front Nutr 2022; 9:1000116. [PMID: 36071940 PMCID: PMC9441959 DOI: 10.3389/fnut.2022.1000116] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/04/2022] [Indexed: 11/30/2022] Open
Abstract
Food packaging is a coordinated system comprising food processing, protection from contamination and adulteration, transportation and storage, and distribution and consumption at optimal cost with a minimum environmental impact to the packed food commodity. Active packaging involves deliberate addition of the functional ingredients either in the film or the package headspace to preserve the food quality, improve safety and nutrition aspects, and enhance the shelf-life. In this review, recent advances in the fabrication of biopolymer-based films, their classification (biodegradable-, active-, and intelligent packaging films), advanced fabrication strategies (composite-, multilayer-, and emulsified films), and special functions induced by the biopolymers to the film matrix (mechanical-, water resistance and gas barrier-, and optical properties, and bioactive compounds reservoir) were briefly discussed. A summary of conclusions and future perspectives of biopolymer-based packaging films as advanced biomaterial in preserving the food quality, improving safety and nutrition aspects, and enhancing shelf-life of the products was proposed.
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Affiliation(s)
- Abdullah
- Guangdong Provincial Key Laboratory of Functional Food Active Substances, College of Food Sciences, South China Agricultural University, Guangzhou, China
| | - Jiyang Cai
- Guangdong Provincial Key Laboratory of Functional Food Active Substances, College of Food Sciences, South China Agricultural University, Guangzhou, China
| | - Muhammad Adnan Hafeez
- Department of Allied Health Sciences, Faculty of Allied Health Sciences, Superior University, Lahore, Pakistan
| | - Qun Wang
- Guangdong Provincial Key Laboratory of Functional Food Active Substances, College of Food Sciences, South China Agricultural University, Guangzhou, China
| | - Shahzad Farooq
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Qingrong Huang
- Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
| | - Wenni Tian
- Guangdong Provincial Key Laboratory of Functional Food Active Substances, College of Food Sciences, South China Agricultural University, Guangzhou, China
| | - Jie Xiao
- Guangdong Provincial Key Laboratory of Functional Food Active Substances, College of Food Sciences, South China Agricultural University, Guangzhou, China
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20
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Handl J, Nyvltova P, Capek J, Cesla P, Hovsepyan A, Avetisyan S, Micankova P, Bruckova L, Stankova P, Knotkova K, Petrosyan T, Rousar T. The comparison of biological effects of bacterial and synthetic melanins in neuroblastoma cells. Food Chem Toxicol 2022; 168:113355. [PMID: 35952821 DOI: 10.1016/j.fct.2022.113355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/28/2022] [Accepted: 08/03/2022] [Indexed: 11/26/2022]
Abstract
Melanins belong to a group of pigments of different structure and origin. They can be produced synthetically or isolated from living organisms. A number of studies have reported testing of various melanins in neurological studies providing different outcomes. Because the structure of melanins can have an effect on obtained results in cell toxicity studies, we present here our original study which aimed to compare the biological effects of bacterial melanin (biotechnologically obtained from B. thuringiensis) with that of synthetic melanin in neuroblastoma cells. Both melanins were structurally characterized in detail. After melanin treatment (0-200 μg/mL), cell viability, glutathione levels, cell morphology and respiration were assessed in SH-SY5Y cells. The structural analysis showed that bacterial melanin is more hydrophilic according to the presence of larger number of -OH moieties. After melanin treatment, we found that synthetic melanin at similar dosage caused always larger cell impairment compared to bacterial melanin. In addition, more severe toxic effect of synthetic melanin was found in mitochondria. In general, we conclude that more hydrophilic, bacterial melanin induced lower toxicity in neuroblastoma cells in comparison to synthetic melanin. Our findings can be useable for neuroscientific studies estimating the potential use for study of neuroprotection, neuromodulation or neurotoxicity.
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Affiliation(s)
- Jiri Handl
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Pavlina Nyvltova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Jan Capek
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Petr Cesla
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Anichka Hovsepyan
- Scientific and Production Center "Armbiotechnology" SNPO NAS RA, 14 Gyurjyan St., Yerevan, Armenia
| | - Sona Avetisyan
- Scientific and Production Center "Armbiotechnology" SNPO NAS RA, 14 Gyurjyan St., Yerevan, Armenia
| | - Petra Micankova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Lenka Bruckova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Pavla Stankova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Katerina Knotkova
- Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic
| | - Tigran Petrosyan
- Department of Physiology and Pathophysiology, Medical Institute, Yerevan Haybusak University, 6 Abelyan St., Yerevan, Armenia
| | - Tomas Rousar
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10, Pardubice, Czech Republic.
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21
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Rudrappa M, Kumar M S, Kumar RS, Almansour AI, Perumal K, Nayaka S. Bioproduction, purification and physicochemical characterization of melanin from Streptomyces sp. strain MR28. Microbiol Res 2022; 263:127130. [PMID: 35870343 DOI: 10.1016/j.micres.2022.127130] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/28/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
Abstract
Melanin has been produced and extracted from various microorganisms because of its therapeutic nature and diverse applications in various fields. Hence we isolated actinomycetes from soil which is capable of producing melanin pigment from L-tyrosine and it was identified as Streptomyces sp. strain MR28 on the basis of biochemical, morphological characterization, and 16S rRNA gene sequencing. Production of melanin pigment was achieved by using standardized tyrosine broth. The melanin pigment was purified, and characterized by using various techniques such as Ultraviolet-Visible spectroscopy (UV-Vis), Fourier Transform Infrared spectroscopy (FTIR), Thin Layer Chromatography (TLC), 1H NMR spectroscopy, Scanning Electron Microscopy (SEM), Elemental analysis (EDX), and Thermogravimetric analysis (TGA). The pigment exhibit maximum UV-Vis absorption spectrum at 299 nm, FTIR peaks confirm the occurrence of C-H, C-N, C-O, and CC functional groups which are key functional groups in indole/pyrrole structure. TLC analysis showed a single band with a significant Retardation factor (Rf) of 0.68, Resonance peaks at 6.66, 7.18, and 7.28 ppm exhibit aromatic hydrogen in the indole/pyrole system in 1H NMR. The EDX reports the presence of carbon, nitrogen, oxygen, and sulfur which are key elements in melanin structure, and TGA exhibits the thermal stability of the melanin. Overall, the successful production and extraction of melanin was achieved by using soil actinomycetes Streptomyces sp. strain MR28, and its characterization confirms the nature of the melanin pigment which has significant value in the industrial and biomedical field.
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Affiliation(s)
- Muthuraj Rudrappa
- P.G. Department of Studies in Botany, Karnatak University, Dharwad 580003, Karnataka, India
| | - Santosh Kumar M
- Department of Biochemistry, Davanagere University, 577007 Karnataka, India
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Karthikeyan Perumal
- Department of Chemistry and Biochemistry, The Ohio State University, 151 W. Woodruff Ave, Columbus, OH 43210, USA
| | - Sreenivasa Nayaka
- P.G. Department of Studies in Botany, Karnatak University, Dharwad 580003, Karnataka, India.
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22
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Glagoleva AY, Vikhorev AV, Shmakov NA, Morozov SV, Chernyak EI, Vasiliev GV, Shatskaya NV, Khlestkina EK, Shoeva OY. Features of Activity of the Phenylpropanoid Biosynthesis Pathway in Melanin-Accumulating Barley Grains. FRONTIERS IN PLANT SCIENCE 2022; 13:923717. [PMID: 35898231 PMCID: PMC9310326 DOI: 10.3389/fpls.2022.923717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Barley (Hordeum vulgare L.) grain pigmentation is caused by two types of phenolic compounds: anthocyanins (which are flavonoids) give a blue or purple color, and melanins (which are products of enzymatic oxidation and polymerization of phenolic compounds) give a black or brown color. Genes Ant1 and Ant2 determine the synthesis of purple anthocyanins in the grain pericarp, whereas melanins are formed under the control of the Blp1 gene in hulls and pericarp tissues. Unlike anthocyanin synthesis, melanin synthesis is poorly understood. The objective of the current work was to reveal features of the phenylpropanoid biosynthesis pathway functioning in melanin-accumulating barley grains. For this purpose, comparative transcriptomic and metabolomic analyses of three barley near-isogenic lines accumulating anthocyanins, melanins, or both in the grain, were performed. A comparative analysis of mRNA libraries constructed for three stages of spike development (booting, late milk, and early dough) showed transcriptional activation of genes encoding enzymes of the general phenylpropanoid pathway in all the lines regardless of pigmentation; however, as the spike matured, unique transcriptomic patterns associated with melanin and anthocyanin synthesis stood out. Secondary activation of transcription of the genes encoding enzymes of the general phenylpropanoid pathway together with genes of monolignol synthesis was revealed in the line accumulating only melanin. This pattern differs from the one observed in the anthocyanin-accumulating lines, where - together with the genes of general phenylpropanoid and monolignol synthesis pathways - flavonoid biosynthesis genes were found to be upregulated, with earlier activation of these genes in the line accumulating both types of pigments. These transcriptomic shifts may underlie the observed differences in concentrations of phenylpropanoid metabolites analyzed in the grain at a late developmental stage by high-performance liquid chromatography. Both melanin-accumulating lines showed an increased total level of benzoic acids. By contrast, anthocyanin-accumulating lines showed higher concentrations of flavonoids and p-coumaric and ferulic acids. A possible negative effect of melanogenesis on the total flavonoid content and a positive influence on the anthocyanin content were noted in the line accumulating both types of pigments. As a conclusion, redirection of metabolic fluxes in the phenylpropanoid biosynthesis pathway occurs when melanin is synthesized.
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Affiliation(s)
- Anastasiia Y. Glagoleva
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Kurchatov Genomics Center, ICG, SB RAS, Novosibirsk, Russia
| | - Alexander V. Vikhorev
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Nikolay A. Shmakov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Kurchatov Genomics Center, ICG, SB RAS, Novosibirsk, Russia
| | - Sergey V. Morozov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, Novosibirsk, Russia
| | - Elena I. Chernyak
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, Novosibirsk, Russia
| | - Gennady V. Vasiliev
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Kurchatov Genomics Center, ICG, SB RAS, Novosibirsk, Russia
| | - Natalia V. Shatskaya
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Kurchatov Genomics Center, ICG, SB RAS, Novosibirsk, Russia
| | - Elena K. Khlestkina
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- N.I. Vavilov All-Russian Research Institute of Plant Genetic Resources, Saint Petersburg, Russia
| | - Olesya Y. Shoeva
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Kurchatov Genomics Center, ICG, SB RAS, Novosibirsk, Russia
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23
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Elsayis A, Hassan SWM, Ghanem KM, Khairy H. Suggested Sustainable Medical and Environmental Uses of Melanin Pigment From Halotolerant Black Yeast Hortaea werneckii AS1. Front Microbiol 2022; 13:871394. [PMID: 35495654 PMCID: PMC9048979 DOI: 10.3389/fmicb.2022.871394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
The marine ecosystem is a complex niche with unique environmental circumstances. Microbial communities from the sea are one of the main origins of compounds with tremendous capabilities. Marine yeasts have the ability to produce secondary metabolites that are architecturally distinct from those found in terrestrial species. Melanin pigment synthesized by marine halotolerant black yeast Hortaea werneckii AS1 isolated from Mediterranean salt lakes in Alexandria, Egypt was found to exert a radical scavenging effect on 2,2-diphenyl-1-picrylhydrazyl (DPPH) with an IC50 of 61.38 μg/ml. Furthermore, it showed no cytotoxicity toward human skin fibroblast cell line (HSF) with an IC50 value above 0.1 mg/ml. The antimicrobial capability of the pigment was revealed against the tested number of bacterial and fungal strains with the highest inhibition zone of 25 mm against Aeromonas sp. and a growth inhibition percentage up to 63.6% against Aspergillus niger. From an environmental impact point of view, the pigment disclosed a heavy metal removal efficiency of 85.7, 84.8, and 81.5% for Pb2+, Cd2+, and Ni2+, respectively, at 100 mg/L metal concentration. The previously mentioned results suggested melanin from H. werneckii AS1 as a promising biocompatible candidate in various medical, cosmetics, pharmaceutical, and environmental applications.
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Affiliation(s)
- Asmaa Elsayis
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt
| | - Sahar W M Hassan
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt
| | - Khaled M Ghanem
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Heba Khairy
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
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24
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Melanin is a plenteous bioactive phenolic compound in date fruits (Phoenix dactylifera L.). Sci Rep 2022; 12:6614. [PMID: 35459886 PMCID: PMC9033825 DOI: 10.1038/s41598-022-10546-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/22/2022] [Indexed: 11/09/2022] Open
Abstract
Date palm fruits (Phoenix dactylifera L.) were found to contain high levels of allomelanin (1.2-5.1%). The melanin is localized in the tanniferous cells between the inner and outer mesocarp tissues of the fruit. The melanin, extracted with 2 M sodium hydroxide, consisted of amorphous graphene-like granular structures of irregular shape and variable size. The date fruit melanin mainly comprises carbon (64.6%) and oxygen (30.6) but no nitrogen, and was thermally stable. It has radical scavenging (63.6-75.1 IC50, µg/mL), antimicrobial (250-1000 µg/mL), hypoglycemic (51.8-58.2%), and angiotensin-converting-enzyme inhibitory (65.8%) effects. The high level of melanin in date fruits highlights the importance of investigating its dietary intake and its impact on nutrition. This study also suggests that date fruit melanin can be a functional ingredient in foods, food packages, pharmaceuticals, and cosmetics.
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25
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Dossou SSK, Luo Z, Wang Z, Zhou W, Zhou R, Zhang Y, Li D, Liu A, Dossa K, You J, Wang L. The Dark Pigment in the Sesame (Sesamum indicum L.) Seed Coat: Isolation, Characterization, and Its Potential Precursors. Front Nutr 2022; 9:858673. [PMID: 35295915 PMCID: PMC8919073 DOI: 10.3389/fnut.2022.858673] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/03/2022] [Indexed: 12/16/2022] Open
Abstract
Sesame is a worldwide oilseed crop used in the food pharmacy. Its seed phenotypes determine the seed quality values. However, a thorough assessment of seed coat metabolites is lacking, and the dark pigment in the seed coat is not well-characterized. Herein, we report the isolation of melanin by the alkali method from the black and brown sesame seeds. Physicochemical methods, including scanning electron microscopy (SEM), solubility, precipitation, UV-Vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, and thermogravimetric-differential scanning calorimetry (TG-DSC), were used to characterize the sesame melanins. The results clearly showed that the isolated pigments were similar to melanin from other sources. Both melanins were heat-stable and exhibited numerous characteristic absorption peaks. Through a comprehensible LC-MS/MS-based metabolome profiles analysis of NaOH and methanol extracts of black and white sesame seeds, caffeic, protocatechuic, indole-carboxylic, homogentisic, ferulic, vanillic, and benzoic acids were identified as the potential precursors of the sesame melanin. Our findings widen our understanding of dark seeds pigmentation in sesame. Furthermore, they show that black sesame seeds are promising sources of edible melanin for food and biotechnological applications.
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Affiliation(s)
- Senouwa Segla Koffi Dossou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
- Laboratoire de Physiologie et de Biotechnologie Végétales, Faculté Des Sciences, Université de Lomé, Lomé, Togo
| | - Zishu Luo
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Zhijian Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Wangyi Zhou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Rong Zhou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Yanxin Zhang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Donghua Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Aili Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Komivi Dossa
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Jun You
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
- *Correspondence: Jun You
| | - Linhai Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
- Linhai Wang
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26
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Xie J, Liu L, Guo H, Bao Q, Hu P, Li H, Che H, Xie W. Orally administered melanin from Sepiapharaonis ink ameliorates depression-anxiety-like behaviors in DSS-induced colitis by mediating inflammation pathway and regulating apoptosis. Int Immunopharmacol 2022; 106:108625. [PMID: 35180627 DOI: 10.1016/j.intimp.2022.108625] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/12/2022] [Accepted: 02/10/2022] [Indexed: 12/20/2022]
Abstract
The effects of intestinal inflammation on the brain and behavior have received a lot of attention. Melanin (MSI) from Sepiapharaonis ink as an emerging functional food, it exhibited a significant protective effect on dextran sulfate sodium (DSS) induced colitis in previous study. In present study, C57BL/6J mice were free to drink 2.5% DSS solution to establish the colitis model. During the DSS treatment, mice were orally administrated with MSI once per day (75, 150, and 300 mg/kg, respectively). The results showed that MSI treatment ameliorated the depression and anxiety symptoms of colitis mice. Further mechanism studies indicated that MSI alleviated inflammatory response by adjusting cytokines TNF-α, IL-1β, IFN-γ, and IL-10, and proteins NLRP3/ASC/caspase-1 inflammasome), inhibited the activation of microglia, restored brain synaptic density, reduced oxidative stress (SOD, MDA) and regulated apoptosis (tunel staining, caspase-3). MSI could modulate depression-anxiety states by targeting inflammation, nerve tissue, oxidative stress and apoptosis. MSI administration could serve as an emerging blue food and nutrition strategy for the prevention of digestive tract inflammation and behavioral disorders.
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Affiliation(s)
- Jingwen Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Lin Liu
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Hao Guo
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Qi Bao
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Penglong Hu
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Hongyan Li
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of Biochemical Engineering, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of Biochemical Engineering, Shandong, Qingdao 266042, China
| | - Hongxia Che
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of Biochemical Engineering, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of Biochemical Engineering, Shandong, Qingdao 266042, China
| | - Wancui Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of Biochemical Engineering, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of Biochemical Engineering, Shandong, Qingdao 266042, China.
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27
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Binsi PK, Muhamed Ashraf P, Parvathy U, Zynudheen AA. Photo‐protective effect of cuttlefish ink melanin on human hair. J Appl Polym Sci 2022. [DOI: 10.1002/app.51631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- P. K. Binsi
- Fish Processing Division ICAR‐Central Institute of Fisheries Technology Cochin India
| | - P. Muhamed Ashraf
- Fish Processing Division ICAR‐Central Institute of Fisheries Technology Cochin India
| | - U. Parvathy
- Fish Processing Division ICAR‐Central Institute of Fisheries Technology Cochin India
| | - A. A. Zynudheen
- Fish Processing Division ICAR‐Central Institute of Fisheries Technology Cochin India
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28
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Stress Dependent Biofilm Formation and Bioactive Melanin Pigment Production by a Thermophilic Bacillus Species from Chilean Hot Spring. Polymers (Basel) 2022; 14:polym14040680. [PMID: 35215592 PMCID: PMC8880475 DOI: 10.3390/polym14040680] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 12/02/2022] Open
Abstract
Thermophilic bacteria able to survive extreme temperature stress are of great biotechnological interest due to their extracellular production of bioactive molecules as a part of a survival strategy, or by intracellular modifications. In the present study, thermophilic Bacillus haynesii CamB6, isolated from a Chilean hot spring, was studied for the formation of different stress response molecules. The polymeric pigment produced by the bacterial strain was characterized by different physicochemical techniques. On exposure to ranges of temperature (50–60 °C), pH (5.0–7.0), and sources of nitrogen and carbon (1–5 g·L−1), the bacteria responded with a biofilm network formation in a hydrophobic polystyrene surface. Biofilm formation under fed-batch conditions was also statistically validated. The bacteria showed a planktonic pellicle network formation in the presence of induced hypoxia and salinity stress (19.45 g·L−1) under static conditions. Salinity stress also resulted in the intracellular response of brown pigment production. The pigment was structurally and functionally characterized by UV-Vis absorbance and the presence of different characteristic peaks via FTIR analysis (bacterial pyomelanin fingerprints) were assessed. A high thermal stability and TGA profile indicated the brown pigment was a probable pyomelanin candidate. Micropyrolysis (Py-GC/MS) showed that isoprene, pyrrole, benzene, pyridine, and their derivatives were the major components detected. In addition, acetic acid, indole, phenol, and its derivatives were observed. The absence of sulfocompounds in the pyrolyzed products agreed with those reported in the literature for pyomelanin. The pigment surface morphology was analyzed via SEM, and the elemental composition via EDS also demonstrated the similarity of the brown pigment to that of the melanin family. The pyomelanin pigment was observed to be bioactive with promising antioxidant capacity (H2O2, Fe2+) compared to the standard antioxidant molecules. In conclusion, B. haynesii CamB6 demonstrated the formation of several biomolecules as a stress response mechanism that is bioactive, showing its probable biotechnological applications in future.
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29
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Antioxidant, Antibacterial, and Antiparasitary Activities of Green Nanoparticles Synthesized Using Water-Soluble Melanins of Fruits. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-00940-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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30
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Singla S, Htut KZ, Zhu R, Davis A, Ma J, Ni QZ, Burkart MD, Maurer C, Miyoshi T, Dhinojwala A. Isolation and Characterization of Allomelanin from Pathogenic Black Knot Fungus-a Sustainable Source of Melanin. ACS OMEGA 2021; 6:35514-35522. [PMID: 34984283 PMCID: PMC8717558 DOI: 10.1021/acsomega.1c05030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Melanin, a widespread pigment found in many taxa, is widely recognized for its high refractive index, ultraviolet (UV) protection, radical quenching ability, metal binding, and many other unique properties. The aforementioned characteristic traits make melanin a potential candidate for biomedical, separation, structural coloration, and space applications. However, the commercially available natural (sepia) and synthetic melanin are very expensive, limiting their use in various applications. Additionally, eumelanin has been the primary focus in most of these studies. In the present study, we demonstrate that melanin can be extracted from the pathogenic black knot fungus Apiosporina morbosa with a yield of ∼10% using the acid-base extraction method. The extracted melanin shows irregular morphology. Chemical characterization using X-ray photoelectron spectroscopy, infrared spectroscopy, and solid-state nuclear magnetic resonance spectroscopy reveals that the melanin derived from black knots is the less explored nitrogen-free allomelanin. Additionally, the extracted melanin shows broadband UV absorption typical of other types of melanin. Because of the wide availability and low cost of black knots and the invasive nature of the fungus, black knots can serve as an alternative green source for obtaining allomelanin at a low cost, which could stimulate its use as an UV light absorber and antioxidant in cosmetics and packaging industries.
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Affiliation(s)
- Saranshu Singla
- School
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - K. Zin Htut
- School
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Runyao Zhu
- School
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Amara Davis
- Department
of Chemical Engineering, The University
of Akron, Akron, Ohio 44325, United
States
| | - Jiayang Ma
- School
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Qing Zhe Ni
- Department
of Chemistry and Biochemistry, University
of California, San Diego, California 92093, United States
| | - Michael D. Burkart
- Department
of Chemistry and Biochemistry, University
of California, San Diego, California 92093, United States
| | | | - Toshikazu Miyoshi
- School
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Ali Dhinojwala
- School
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
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31
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Abstract
This research examined the changes of black garlic (BG) quality attributes when raw materials of different initial moisture contents (iMC) were used. Fresh garlic bulbs (cv. Thai) were shade-dried for eight weeks at a controlled condition at 29 °C and relative humidity (RH) of 55% to the desired iMC (ranging from ca. 50–70%). BG processing was at 75 °C, RH = 80% for ten days. After processing, physiological characteristics and chemical properties of garlic were determined. Results illustrated that fresh garlic with higher moisture content (ca. 70%) resulted in BG of a dark brown colour, sloppy texture, and lesser acidity (pH = 4.44), while samples with lower iMCs (<50%) gave products that were completely black, elastic in texture, and with higher acidity (pH = 3.79). The analysed bioactive compounds, as well as their antioxidative potentials, suggested that the longer the curing time, the higher the functional properties of the finished products, possessing a total phenolic, total flavonoid content, and antioxidant activity of 15.54 mg/kg dry matter sample, 1.53 mg/kg dry matter sample, and 95.39%, respectively. Principle component analysis (PCA) of active metabolites confirmed that sulfur, S-allyl-L-cysteine, and flavonoid were among the main phytochemicals found in the BG. In summary, higher quality BG can be achieved by using raw materials of lower iMC.
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32
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Ammanagi A, C T S, R K, Badiger A, Ramaraj V. Functional and Structural Characterization of Melanin from Brevibacillus invocatus Strain IBA. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2021; 500:159-169. [PMID: 34731382 DOI: 10.1134/s001249662105001x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/23/2022]
Abstract
Melanin is a polyphenol or indolic dark brown to black pigment of macromolecules that has a variety of biological functions including UV defence, desiccation, and oxidation. The pigment is classified as a heterogenic polymer. Analytical characterization of melanin can be difficult due to its heterogeneity. In this study, a newly isolated strain of Brevibacillus invocatus strain IBA capable of extracellular melanin production was grown on nutrient agar and the bacteria were molecularly identified. Chemical and physical methods were used to characterize melanin. The solubility of melanin in organic and inorganic solvents was used to characterise it chemically. According to the UV-visible wavelength scan, physical characterization revealed absorption in the UV region 200 to 300 nm, but declining towards the visible region. Functional group identification of extracted melanin was carried out by FTIR with different stretching vibrations at 3226, 2920, 2849, 1628, 1555, 1340 cm-1 and weak absorption bands at 1104 and 1015 cm-1. Structural characterization was carried by SEM of extracted melanin which showed irregular shape and size at different magnifications. The crystallinity of melanin was studied using X-ray crystallography, with a lattice parameter of approximately a = 8.54. The XRD spectrum of the extracted melanin crystallographic pattern revealed peaks at 2θ = 27.32, 31.66, 45.41, 53.84, 53.84, 56.44, 66.18, 73.10, 75.26, and 83.94, which correspond to reflections (111), (200), (220), (311), (222), (400), (331), (420), and (422), respectively. The analytical methods available for melanin analysis are largely complementary, providing detailed knowledge required to draw reliable conclusions about the sample under investigation.
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Affiliation(s)
- Avinash Ammanagi
- Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka, India.
| | - Shivasharana C T
- Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka, India.
| | - Krishnaveni R
- Department of Microbiology Vijayanagara Sri Krishna Devaraya University, Ballari, Karnataka, India
| | - Abhijeeth Badiger
- Department of Biotechnology, Sri Dharmasthala Manjunatheshwara College, Ujire, Karnataka, India
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33
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Development of the technology for producing water-soluble melanin from waste of vinary production and the study of its physicochemical properties. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03894-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Parvulescu MJS, Martin KL, Mogilevsky P, Patel TA, Street DP, Gupta MK, Hung CS, Dickerson MB. Biomorphic Ceramics: Synthesis and Characterization of Preceramic Polymer-Modified Melanin. ACS Biomater Sci Eng 2021; 7:3103-3113. [PMID: 34100582 DOI: 10.1021/acsbiomaterials.1c00265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recent efforts have demonstrated that the morphology of ceramics can be manipulated to control both their deformation mechanism and mechanical performance. However, precise control of the ceramic nanostructure is still difficult to achieve. Biotemplating, leading to biomorphic materials, provides a facile route to manipulate the nanostructure of the resulting materials, and the use of melanin as a coating provides a new route to biotemplated materials. Melanin is underutilized for structural materials partly due to the cost of procuring it from natural sources and the inability to control the shape and sizes of melanin particles. Taking a combined synthetic biology and chemical synthesis approach, we report the melanization of Escherichia coli and its subsequent silanization and functionalization with preceramic polymers to make novel biomorphic silicon-based ceramic materials. Graft-to and graft-from reactions were used to append preceramic polymers to the melanin, followed by pyrolysis under argon. Samples were analyzed by FTIR, XRD, XPS, and TEM and found to retain the shape and size of the original cells with high fidelity. The homogeneity of coverage and yield of the resulting ceramic materials depended on the type of grafting reaction. This work provides a promising proof-of-concept that bacterial-templated ceramics can be readily made and opens a host of possibilities for further studies and applications.
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Affiliation(s)
- Maria J S Parvulescu
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,UES Inc., 4401 Dayton-Xenia Rd, Dayton 45432, Ohio, United States
| | - Kara L Martin
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,UES Inc., 4401 Dayton-Xenia Rd, Dayton 45432, Ohio, United States
| | - Pavel Mogilevsky
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,UES Inc., 4401 Dayton-Xenia Rd, Dayton 45432, Ohio, United States
| | - Tulsi A Patel
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,National Research Council Research Associate Program, National Academies of Science, 500 Fifth Street, NW, Washington, D.C. 20001, United States
| | - Dayton P Street
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States.,National Research Council Research Associate Program, National Academies of Science, 500 Fifth Street, NW, Washington, D.C. 20001, United States
| | - Maneesh K Gupta
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States
| | - Chia-Suei Hung
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States
| | - Matthew B Dickerson
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright- Patterson Air Force Base 45433, Ohio, United States
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35
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Roy S, Rhim JW. New insight into melanin for food packaging and biotechnology applications. Crit Rev Food Sci Nutr 2021; 62:4629-4655. [PMID: 33523716 DOI: 10.1080/10408398.2021.1878097] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Melanin is a dark brown to black biomacromolecule with biologically active multifunctional properties that do not have a precise chemical structure, but its structure mainly depends on the polymerization conditions during the synthesis process. Natural melanin can be isolated from various animal, plant, and microbial sources, while synthetic melanin-like compounds can be synthesized by simple polymerization of dopamine. Melanin is widely used in various areas due to its functional properties such as photosensitivity, light barrier property, free radical scavenging ability, antioxidant activity, etc. It also has an excellent ability to act as a reducing agent and capping agent to synthesize various metal nanoparticles. Melanin nanoparticles (MNP) or melanin-like nanoparticles (MLNP) have the unique potential to act as functional materials to improve nanocomposite films' physical and functional properties. Various food packaging and biomedical applications have been made alone or by mixing melanin or MLNP. In this review, the general aspects of melanin that highlight biological activity, along with a description of MNP and the use as nanofillers in packaging films as well as reducing and capping agents and biomedical applications, were comprehensively reviewed.
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Affiliation(s)
- Swarup Roy
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul, Republic of Korea
| | - Jong-Whan Rhim
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul, Republic of Korea
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36
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Galeb HA, Wilkinson EL, Stowell AF, Lin H, Murphy ST, Martin‐Hirsch PL, Mort RL, Taylor AM, Hardy JG. Melanins as Sustainable Resources for Advanced Biotechnological Applications. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000102. [PMID: 33552556 PMCID: PMC7857133 DOI: 10.1002/gch2.202000102] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/04/2020] [Indexed: 05/17/2023]
Abstract
Melanins are a class of biopolymers that are widespread in nature and have diverse origins, chemical compositions, and functions. Their chemical, electrical, optical, and paramagnetic properties offer opportunities for applications in materials science, particularly for medical and technical uses. This review focuses on the application of analytical techniques to study melanins in multidisciplinary contexts with a view to their use as sustainable resources for advanced biotechnological applications, and how these may facilitate the achievement of the United Nations Sustainable Development Goals.
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Affiliation(s)
- Hanaa A. Galeb
- Department of ChemistryLancaster UniversityLancasterLA1 4YBUK
- Department of ChemistryScience and Arts CollegeRabigh CampusKing Abdulaziz UniversityJeddah21577Saudi Arabia
| | - Emma L. Wilkinson
- Department of Biomedical and Life SciencesLancaster UniversityLancasterLA1 4YGUK
| | - Alison F. Stowell
- Department of Organisation, Work and TechnologyLancaster University Management SchoolLancaster UniversityLancasterLA1 4YXUK
| | - Hungyen Lin
- Department of EngineeringLancaster UniversityLancasterLA1 4YWUK
| | - Samuel T. Murphy
- Department of EngineeringLancaster UniversityLancasterLA1 4YWUK
- Materials Science InstituteLancaster UniversityLancasterLA1 4YBUK
| | - Pierre L. Martin‐Hirsch
- Lancashire Teaching Hospitals NHS TrustRoyal Preston HospitalSharoe Green LanePrestonPR2 9HTUK
| | - Richard L. Mort
- Department of Biomedical and Life SciencesLancaster UniversityLancasterLA1 4YGUK
| | - Adam M. Taylor
- Lancaster Medical SchoolLancaster UniversityLancasterLA1 4YWUK
| | - John G. Hardy
- Department of ChemistryLancaster UniversityLancasterLA1 4YBUK
- Materials Science InstituteLancaster UniversityLancasterLA1 4YBUK
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37
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Rahmani Eliato T, Smith JT, Tian Z, Kim ES, Hwang W, Andam CP, Kim YJ. Melanin pigments extracted from horsehair as antibacterial agents. J Mater Chem B 2020; 9:1536-1545. [PMID: 33320923 DOI: 10.1039/d0tb02475a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Here we present the important findings related to biologically derived pigments for potential use as antibacterial agents. Melanin biopigments extracted from Equus ferus hair exhibit a homogeneous elliptical microstructure with highly ordered semicrystalline features. Spectroscopic analysis indicates that melanin contains a high degree of redox active catechol groups, which can produce reactive oxygen species. The antibacterial activity of melanins was tested by incubating Escherichia coli and Staphylococcus aureus with melanins. The results showed 100% bacterial growth inhibition within 4 h. This finding suggests that melanin pigments may serve as naturally occurring antibacterial agents with unique redox chemistry and reactive oxygen species generation capability.
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Affiliation(s)
| | - Joshua T Smith
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH 03824, USA
| | - Zhen Tian
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824, USA.
| | - Eun-Sik Kim
- Department of Environmental System Engineering, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Wonseok Hwang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20740, USA
| | - Cheryl P Andam
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH 03824, USA and Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Young Jo Kim
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824, USA.
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Qi Y, Liu J, Liu Y, Yan D, Wu H, Li R, Jiang Z, Yang Y, Ren X. Polyphenol oxidase plays a critical role in melanin formation in the fruit skin of persimmon (Diospyros kaki cv. 'Heishi'). Food Chem 2020; 330:127253. [PMID: 32534157 DOI: 10.1016/j.foodchem.2020.127253] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 10/24/2022]
Abstract
In this study, the melanin in persimmon and its formation were investigated. Melanin was found to be deposited on the cell walls of the upper epidermis and subepidermal cells in persimmon skin and the isolated pigment appears to have lamellar structures. Diagnostic analysis of the isolated pigment showed results that were similar to those of melanin from other sources. Ultraviolet-visible spectroscopy revealed that the extracted skin pigment displayed a broadband, structureless absorption profile that increased progressively towards shorter wavelengths. The Fourier transform infrared spectroscopy assay revealed that melanin in persimmon skin exhibits many characteristic absorption peaks. The phenolic profile analysis suggested that the precursors of this pigment may include gallic acid, procyanidin B1, procyanidin B2, ferulic acid and epigallocatechin gallate. The PPO activity and DkPPO expression significantly increased during melanin formation, and transient overexpression of DkPPO promoted melanin synthesis. These results indicate that the isolated pigment was a type of melanin and that PPO plays a critical role in its formation.
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Affiliation(s)
- Yingwei Qi
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Jia Liu
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Yanfei Liu
- College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Dan Yan
- Department of Agriculture and Rural Affairs of Shaanxi Province, Xi'an, Shaanxi 710003, China
| | - Hanxiao Wu
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Rui Li
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Zitao Jiang
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Yong Yang
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Xiaolin Ren
- College of horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China.
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Sunanta P, Chung H, Kunasakdakul K, Ruksiriwanich W, Jantrawut P, Hongsibsong S, Sommano SR. Genomic relationship and physiochemical properties among raw materials used for Thai black garlic processing. Food Sci Nutr 2020; 8:4534-4545. [PMID: 32884733 PMCID: PMC7455981 DOI: 10.1002/fsn3.1762] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 12/05/2022] Open
Abstract
Raw materials used for black garlic (BG) processing were collected from the major garlic production areas in Northern Thailand. Five of those were identified as of Thai origin (accession G1-G5), and accession G6 was of the Chinese variety. They were initially analyzed for varietal differences using morphological characteristics and genetic variation. Fresh materials from each accession were dried to the same moisture content (55%-60%) and BG processed at 75°C, 90% relative humidity (RH) for 15 days. Thereafter, physiochemical and chemical profiles were analyzed and compared. The dendrogram from random amplified polymorphic DNA fingerprints grouped G2, G3, G4, and G5 as closely related while G1 and G6 were out-groups. Prior to BG processing, the pH of fresh garlic was approximately 6.3 and decreased to 3.7, thereafter. The contents of chemical properties were independent with genotypes. BG processing improved phenolic, flavonoid, and antioxidant but the content of thiosulfinate was minimized in all BG samples. Overall, result indicated that garlics grown in Northern Thailand were genotypically variable. BG processing altered physical and chemical appearance, and these changes were independent with the genotypes.
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Affiliation(s)
- Piyachat Sunanta
- Interdisciplinary Program in BiotechnologyGraduate SchoolChiang Mai UniversityChiang MaiThailand
- Plant Bioactive Compound Laboratory (BAC)Faculty of AgricultureChiang Mai UniversityChiang MaiThailand
- Division of HorticultureDepartment of Plant and Soil SciencesFaculty of AgricultureChiang Mai UniversityChiang MaiThailand
| | - Hsiao‐Hang Chung
- Department of HorticultureNational Ilan UniversityYilan CityTaiwan
| | - Kaewalin Kunasakdakul
- Department of Plant PathologyFaculty of AgricultureChiang Mai UniversityChiang MaiThailand
- Innovative Agriculture Research CenterFaculty of AgricultureChiang Mai UniversityChiang MaiThailand
| | - Warintorn Ruksiriwanich
- Department of Pharmaceutical SciencesFaculty of PharmacyChiang Mai UniversityChiang MaiThailand
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or AnimalChiang Mai UniversityChiang MaiThailand
| | - Pensak Jantrawut
- Department of Pharmaceutical SciencesFaculty of PharmacyChiang Mai UniversityChiang MaiThailand
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or AnimalChiang Mai UniversityChiang MaiThailand
| | - Surat Hongsibsong
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or AnimalChiang Mai UniversityChiang MaiThailand
- Environment and Health Research UnitResearch Institute for Health ScienceChiang Mai UniversityChiang MaiThailand
| | - Sarana Rose Sommano
- Plant Bioactive Compound Laboratory (BAC)Faculty of AgricultureChiang Mai UniversityChiang MaiThailand
- Innovative Agriculture Research CenterFaculty of AgricultureChiang Mai UniversityChiang MaiThailand
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or AnimalChiang Mai UniversityChiang MaiThailand
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40
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Rassabina AE, Gurjanov OP, Beckett RP, Minibayeva FV. Melanin from the Lichens Cetraria islandica and Pseudevernia furfuracea: Structural Features and Physicochemical Properties. BIOCHEMISTRY (MOSCOW) 2020; 85:623-628. [PMID: 32571192 DOI: 10.1134/s0006297920050119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Lichens are symbiotic photosynthesizing organisms with thalli formed by fungi and algae/cyanobacteria that possess high stress tolerance. One of the factors that contributes to the ability of a lichen to tolerate harsh environmental conditions is the presence of unique metabolites, including high-molecular-weight dark pigments termed melanins. The chemical composition and structure of lichen melanins remain poorly studied. We analyzed the elemental composition, the main functional groups, and the physicochemical properties of melanin extracted from Cetraria islandica and Pseudevernia furfuracea lichens. Based on the C/N ratio, this pigment is allomelanin. We also identified functional groups that provide photoprotective and antioxidant properties of melanin. Melanin synthesis might be an essential defense mechanism contributing to the survival of lichens under exposure to UV radiation.
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Affiliation(s)
- A E Rassabina
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of the Russian Academy of Sciences, Kazan, 420111, Russia
| | - O P Gurjanov
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of the Russian Academy of Sciences, Kazan, 420111, Russia
| | - R P Beckett
- School of Life Sciences, University of KwaZulu-Natal, Scottsville, 3209, South Africa
| | - F V Minibayeva
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of the Russian Academy of Sciences, Kazan, 420111, Russia. .,Kazan (Volga Region) Federal University, Kazan, 420008, Russia
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41
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Glagoleva AY, Shoeva OY, Khlestkina EK. Melanin Pigment in Plants: Current Knowledge and Future Perspectives. FRONTIERS IN PLANT SCIENCE 2020; 11:770. [PMID: 32655591 PMCID: PMC7324791 DOI: 10.3389/fpls.2020.00770] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 05/14/2020] [Indexed: 05/29/2023]
Abstract
The word "melanin" refers to a group of high molecular weight, black, and brown pigments formed through the oxidation and polymerization of phenolic compounds. This pigment is present in all kingdoms of living organisms, but it remains the most enigmatic pigment in plants. The poor solubility of melanin in particular solvents and its complex polymeric nature significantly constrain its study. Plant melanin synthesis is mostly associated with the enzymatic browning reaction that occurs in wounded plant tissues. This reaction occurs when, due to the disruption of cellular compartmentation, the chloroplast-located polyphenol oxidases (PPOs) release from the chloroplast and interact with their vacuolar substrates to produce o-quinones, which in turn polymerize to melanin. Furthermore, the presence of melanin in intact seed tissues has been demonstrated by diagnostic physicochemical tests. Unlike the well-studied enzymatic browning reaction, little is known about how melanin is formed in seeds. Recent data have shown that it is a tightly controlled genetic process that involves many genes, among which the genes encoding PPOs might be key. The present article aims to provide an overview of the current knowledge on melanin in plants and to discuss future perspectives on its study in light of recent findings.
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Affiliation(s)
- Anastasiia Y. Glagoleva
- Cereal Functional Genetics Group, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Olesya Y. Shoeva
- Cereal Functional Genetics Group, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Elena K. Khlestkina
- Cereal Functional Genetics Group, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- N.I. Vavilov All-Russian Research Institute of Plant Genetic Resources (VIR), Saint Petersburg, Russia
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Caldas M, Santos AC, Veiga F, Rebelo R, Reis RL, Correlo VM. Melanin nanoparticles as a promising tool for biomedical applications - a review. Acta Biomater 2020; 105:26-43. [PMID: 32014585 DOI: 10.1016/j.actbio.2020.01.044] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/23/2020] [Accepted: 01/28/2020] [Indexed: 01/06/2023]
Abstract
Melanin is a biopolymer of easy and cheap availability that can be found among the living organisms and excels for its biocompatibility and biodegradability properties, along with scavenging abilities, metal chelation and electronic conductance. This biomaterial can act as a nanocarrier or agent itself to be used in diverse biomedical applications, such as imaging, controlled drug release, bioengineering and bioelectronics, antioxidant applications and theranostics. In this review, the melanin source and structure, its physicochemical properties, melanin-like polymers as well as the differences among those will be elucidated. The focus will be the discussion of the current approaches that apply melanin nanoparticles (MNPs) and melanin-like nanoparticles (MLNPs) in the biomedical field, to which promising capabilities have been attributed, regarding optoelectronic, photoconductivity and photoacoustic. The use of these nanoparticles, in the last 10 years, in topics as drug delivery or theranostics will be detailed and the major achievements will be discussed. Overall, we anticipate that melanin can drive us toward a new paradigm in medical diagnostics and treatments, since applying melanin features possibly its use as a theranostics nanocarrier agent, not only for diagnostics, but also for photothermal therapy and controlled drug release through chemotherapy. STATEMENT OF SIGNIFICANCE: We present here a timely and opportune review article focusing the significant potential of melanin nanoparticles in biomedical applications, which will be discussed thoroughly. This biomaterial presents multiple capabilities that may be taken into consideration towards cancer theranostics, expecting a high future impact in the nanosized-platforms design and performance.
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43
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Preparation and characterization of synthetic melanin-like nanoparticles reinforced chitosan nanocomposite films. Carbohydr Polym 2020; 231:115729. [DOI: 10.1016/j.carbpol.2019.115729] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/05/2019] [Accepted: 12/09/2019] [Indexed: 11/17/2022]
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44
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Shoeva OY, Mursalimov SR, Gracheva NV, Glagoleva AY, Börner A, Khlestkina EK. Melanin formation in barley grain occurs within plastids of pericarp and husk cells. Sci Rep 2020; 10:179. [PMID: 31932698 PMCID: PMC6957670 DOI: 10.1038/s41598-019-56982-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 12/19/2019] [Indexed: 11/09/2022] Open
Abstract
Melanins are a class of darkly pigmented biopolymers which are widely distributed among living organisms. The molecular and cellular mechanisms adopted by bacteria, fungi and animals to synthesize melanin, have been well described, but less is known regarding their production in plants. Here, a pair of barley near isogenic lines, bred to differ with respect to the pigmentation of the spike, was compared in order to understand the tissue and cellular location of melanin deposition. The melanic nature of the pigments purified from black spikes was confirmed by a series of solubility tests and Fourier transform infrared spectroscopy. An analysis of grains harvested at various stages of their development revealed that intracellular pigmented structures first appeared in the pericarp and the husk of black spike plants at early dough stage. The co-localization of these structures with red autofluorescence suggested that they form in chloroplast-derived plastids, here designated "melanoplasts". Differences in dynamics of plastid internal structure during grain ripening were detected between the lines by transmission electron microscopy. Both lines accumulated plastoglobuli inside plastids, which persisted in black grain pericarp tissue up to the hard dough stage, while neither plastoglobuli nor any plastids were observed in grain of the control line at this stage. The role of plastoglobuli in melanin synthesis is discussed.
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Affiliation(s)
| | | | | | | | - Andreas Börner
- Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
| | - Elena K Khlestkina
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,N.I.Vavilov All-Russian Research Institute of Plant Genetic Resources, Saint-Petersburg, Russia
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45
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Shankar S, Bang YJ, Rhim JW. Antibacterial LDPE/GSE/Mel/ZnONP composite film-coated wrapping paper for convenience food packaging application. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.100421] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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46
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Roy S, Rhim JW. Agar-based antioxidant composite films incorporated with melanin nanoparticles. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.03.038] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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47
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Effect of melanin nanoparticles on the mechanical, water vapor barrier, and antioxidant properties of gelatin-based films for food packaging application. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.100363] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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48
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Pralea IE, Moldovan RC, Petrache AM, Ilieș M, Hegheș SC, Ielciu I, Nicoară R, Moldovan M, Ene M, Radu M, Uifălean A, Iuga CA. From Extraction to Advanced Analytical Methods: The Challenges of Melanin Analysis. Int J Mol Sci 2019; 20:E3943. [PMID: 31412656 PMCID: PMC6719904 DOI: 10.3390/ijms20163943] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/08/2019] [Accepted: 08/11/2019] [Indexed: 12/13/2022] Open
Abstract
The generic term "melanin" describes a black pigment of biological origin, although some melanins can be brown or even yellow. The pigment is characterized as a heterogenic polymer of phenolic or indolic nature, and the classification of eu-, pheo- and allo- melanin is broadly accepted. This classification is based on the chemical composition of the monomer subunit structure of the pigment. Due to the high heterogeneity of melanins, their analytical characterization can be a challenging task. In the present work, we synthesized the current information about the analytical methods which can be applied in melanin analysis workflow, from extraction and purification to high-throughput methods, such as matrix-assisted laser desorption/ionization mass-spectrometry or pyrolysis gas chromatography. Our thorough comparative evaluation of analytical data published so far on melanin analysis has proven to be a difficult task in terms of finding equivalent results, even when the same matrix was used. Moreover, we emphasize the importance of prior knowledge of melanin types and properties in order to select a valid experimental design using analytical methods that are able to deliver reliable results and draw consistent conclusions.
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Affiliation(s)
- Ioana-Ecaterina Pralea
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Radu-Cristian Moldovan
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Alina-Maria Petrache
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Maria Ilieș
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
| | - Simona-Codruța Hegheș
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania
| | - Irina Ielciu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400337 Cluj-Napoca, Romania
| | - Raul Nicoară
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania
| | - Mirela Moldovan
- Department of Dermopharmacy and Cosmetics, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Ion Creangă Street 12, 400010 Cluj-Napoca, , Romania
| | - Mihaela Ene
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului Street 30, 077125 Măgurele, Romania
| | - Mihai Radu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Reactorului Street 30, 077125 Măgurele, Romania
| | - Alina Uifălean
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania.
| | - Cristina-Adela Iuga
- MedFuture - Research Center for Advanced Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 4-6, Gh. Marinescu Street 23, 400349 Cluj-Napoca, Romania
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349Cluj-Napoca, Romania
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