Academic literature on the topic 'Pigment industry'
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Journal articles on the topic "Pigment industry"
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Palomino Agurto, Mardonio E., Sarath M. Vega Gutierrez, R. C. Van Court, Hsiou-Lien Chen, and Seri C. Robinson. "Oil-Based Fungal Pigment from Scytalidium cuboideum as a Textile Dye." Journal of Fungi 6, no. 2 (April 22, 2020): 53. http://dx.doi.org/10.3390/jof6020053.
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Identification of effective natural dyes with the potential for low environmental impact has been a recent focus of the textile industry. Pigments derived from spalting fungi have previously shown promise as textile dyes; however, their use has required numerous organic solvents with human health implications. This research explored the possibility of using linseed oil as a carrier for the pigment from Scytalidium cuboideum as a textile dye. Colored linseed oil effectively dyed a range of fabrics, with natural fibers showing better coloration. Scanning electron microscopy (SEM) revealed a pigment film over the fabric surface. While mechanical testing showed no strength loss in treated fabric, colorfastness tests showed significant changes in color in response to laundering and bleach exposure with variable effects across fabric varieties. SEM investigation confirmed differences in pigmented oil layer loss and showed variation in pigment crystal formation between fabric varieties. Heating of the pigmented oil layer was found to result in a bright, shiny fabric surface, which may have potential for naturally weatherproof garments.
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Valencia, Ricardo, Ivone Giffard-Mena, Ricardo Cruz-López, Ernesto García-Mendoza, and José Luis Stephano-Hornedo. "Growth Profiles, Nutrient composition and Pigments Analysis of Dunaliella salina strain San Quintin." CICIMAR Oceánides 33, no. 2 (August 13, 2018): 1. http://dx.doi.org/10.37543/oceanides.v33i2.212.
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Some microalgae are recognized for producing pigments and other metabolites with biotechnological importance, particularly, <i>Dunaliella salina</i> is a remarkable one. These kind of compounds are used as food and have a great industrial potential. The pigment industry comprises a millionaire market value, being β-carotene one of the most profitable one. In this study we describe the morphology, molecular identification, growth dynamics, proximal composition, nutrients and pigment content of a recently isolated <i>Dunaliella salina</i> strain (SQ) under different salinity/light conditions, in order to highlight its remarkable properties for biotech/biomed industry. <i>D. salina</i> SQ reached the highest densities (1.07-1.25 cell mL-1 x106) at low salinities (100-500 mM NaCl) under continuous light regimen (24:0 h Light:Dark). Neoxanthin (Neo) and violaxanthin (Viol) were the most abundant pigments when exposed to 500 mM NaCl (18:6 h Light:Dark). Furthermore, this peculiar strain produces other compounds with high industrial value.Perfiles de crecimiento, composición de nutrientes y análisis de pigmentos de <i>Dunaliella salina</i> cepa San Quintín Algunas microalgas son reconocidas por producir pigmentos y otros metabolitos con importancia biotecnológica, en particular, <i>Dunaliella salina</i> es una de las más notables. Este tipo de compuestos se usan como alimento y tienen potencial industrial. La industria del pigmento tiene un valor de mercado millonario, siendo el β-caroteno uno de los más rentables. En este estudio se describe la morfología, la dinámica de crecimiento, composición proximal, composición de nutrientes y contenido de pigmentos de una cepa de <i>Dunaliella salina</i> (SQ) recientemente aislada. La identificación de la especie se corroboró mediante técnicas moleculares. Se cultivó a <i>D. salina</i> bajo diferentes condiciones de salinidad y luz, con el objetivo de resaltar sus propiedades para la industria biotecnológica y biomédica. <i>D. salina</i> SQ alcanzó las densidades más altas (1.07-1.25 células mL-1 x106) a salinidades bajas (NaCl 100 y 500 mM) en un régimen de luz continua. La neoxantina (Neo) y la violaxantina (Viol) fueron los pigmentos más abundantes en 500 mM NaCl y un ciclo de luz: oscuridad 18: 6 h. Además, esta peculiar cepa produce otros compuestos con alto valor industrial.
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Puspita, Dhanang, and Jacob Lukas Alexander Uktolseja. "POTENSI PIGMEN ALAMI DARI BAKTERI SIMBION KARANG Mantipora sp SEBAGAI PEWARNA MAKANAN." Pro Food 6, no. 1 (July 10, 2020): 643. http://dx.doi.org/10.29303/profood.v6i1.121.
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ABSTRACT
Color is very important in the food industry. The need for food coloring requires manufacturers to use synthetic dyes that have the potential to cause poisoning and cancer. One source of natural dyes comes from bacteria that are symbiotic with coral reefs. The purpose of this study is to isolate and characterize the bacterial pigment that has symbiosis with Montipora sp. The research method consisted of bacterial isolation and identification, pigment identification with UV-Vis spectrofotometer (200 – 800 nm) and TLC. The results of isilation and identification showed that Rhodococcus sp is dominant bacterial which is produces of carotenoiids for self defense from UV rays. The pigment found in Rhodococcus sp has the potential as a natural pigment for food coloring.
Keywords: carotenoids, Montipora, pigment, Rhodococcus sp.
ABSTRAK
Warna sangat penting dalam industri pangan. Kebutuhan pewarna makanan menuntut produsen memakai bahan pewarna sintetik yang berpotensi menyebabkan keracunan dan kanker. Salah satu sumber pewarna alami berasal dari bakteri yang bersimbiosis dengan terumbu karang. Tujuan dari penelitian ini adalah mengisolasi dan mengkarakterisasi pigmen bakteri yang bersimbion Montipora sp. Metode penelitian terdiri dari isolasi dan identifkasi bakteri, identifikasi pigmen dengan spektrofotometer UV-Vis (200 – 800 nm) dan KLT. Hasil isolasi dan identifikasi bakteri berjenis Rhodococcus sp dan piigmen yang dihasilkan adalah karotenoid yang digunakan sebagai pertahanan diri dari sinar UV. Pigmen yang terdapat pada Rhodococcus sp berpotensi sebagai pigmen alami untuk pewarna pangan.
Kata kunci: karotenoid, Montipora, pigmen, Rhodococcus sp.
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Ati, Neltji Herlina, Puji Rahayu, Soenarto Notosoedarmo, and Leenawaty Limantara. "THE COMPOSITION AND THE CONTENT OF PIGMENTS FROM SOME DYEING PLANT FOR IKAT WEAVING IN TIMORRESE REGENCY, EAST NUSA TENGGARA." Indonesian Journal of Chemistry 6, no. 3 (June 15, 2010): 325–31. http://dx.doi.org/10.22146/ijc.21741.
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Ikat weaving is one of traditional-home industry using plant pigments as a dye which have not been known for their pigments composition. So, the research was carried out to know the composition and the content of pigments in young leaf teak, noni root, turmeric tuber, casuarine bark and betel-nut root. The result showed that pigment composition in young leaf teak consisted of β-carotene, pheophytine, phelargonydine 3-glucosyde, phelargonydine 3,7-diglucosyde, chlorophyllide and two other pigments that have not been identified. Most of the pigments composition in betel-nut root have not been identified, but one of them was condensed tanin. Noni root had pigment composition which consisted of hydrolised tanin, flavonoid and morindon. Pigment composition in turmeric tuber were curcumin, demethoxy curcumin and bis-demethoxy curcumin. Whereas casuarine bark had pigment composition which consisted of delphynidine, cyanydine and phelargonydine. The highest pigment concentration in young leaf teak, betel-nut root, noni root, tumeric tuber and casuarine bark was pheophytine, tanin condensation, morindon, curcumin and cyanidine, respectively. Keywords: ikat weaving, chlorophyll, carotenoid, anthocyanin
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KURAMOTO, Mutsuo. "Pigment Dispersion for Paint Industry." Journal of the Japan Society of Colour Material 78, no. 4 (2005): 191–96. http://dx.doi.org/10.4011/shikizai1937.78.191.
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Alam, Tanveer. "Extraction of Natural Colors from Marine Algae." Journal of Agricultural and Marine Sciences [JAMS] 23 (January 10, 2019): 81. http://dx.doi.org/10.24200/jams.vol23iss0pp81-91.
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Abstract:The pigment content in microalgae is a specific feature of each species. Colors from natural sources are gaining more importance mainly due to health and environmental issues. Algae contain a wide range of pigments. Three major classes of pigments are chlorophylls, carotenoids (carotenes and xanthophylls) and phycobilins (Phycocyanin and phycoerythrin). Phycocyanin and phycoerythrin belong to the major class of phycobilins photosynthetic pigment while fucoxanthin and peridinin belong to carotenoid group of photosynthetic pigment. Macro- and microalgae (including cyanobacteria) have been recognized to provide a wide diversity of metabolites including pigments for energy capture and photo-protection. One of the main objectives is to identify and select potential micro- and macroalgae species that can be used a raw material for the color industry.
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Alam, Tanveer. "Extraction of Natural Colors from Marine Algae." Journal of Agricultural and Marine Sciences [JAMS] 23, no. 1 (January 10, 2019): 81. http://dx.doi.org/10.24200/jams.vol23iss1pp81-91.
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Abstract:The pigment content in microalgae is a specific feature of each species. Colors from natural sources are gaining more importance mainly due to health and environmental issues. Algae contain a wide range of pigments. Three major classes of pigments are chlorophylls, carotenoids (carotenes and xanthophylls) and phycobilins (Phycocyanin and phycoerythrin). Phycocyanin and phycoerythrin belong to the major class of phycobilins photosynthetic pigment while fucoxanthin and peridinin belong to carotenoid group of photosynthetic pigment. Macro- and microalgae (including cyanobacteria) have been recognized to provide a wide diversity of metabolites including pigments for energy capture and photo-protection. One of the main objectives is to identify and select potential micro- and macroalgae species that can be used a raw material for the color industry.
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Agbo, Christiana, Collins Acheampong, Liping Zhang, Min Li, and Shai Shao Fu. "Preparing stable pigment dispersion utilizing polyoxyethylene lauryl ether as dispersant." Pigment & Resin Technology 48, no. 1 (January 7, 2019): 1–8. http://dx.doi.org/10.1108/prt-10-2017-0081.
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Purpose This study aims to evaluate the use of polyoxyethylene lauryl ether (PLE) as a dispersant in the preparation of novel pigment dispersion with enhanced dispersion ability, which can find application in the printing industry. Design/methodology/approach To obtain a good dispersion, PLE was used as a dispersant in pigments dispersion. The colloidal and rheological properties of the PLE-based dispersion, such as particle distribution, zeta potentials and apparent viscosity were evaluated. Findings The particle sizes of the pigment dispersions were within the range of 150 to 200 nm. The measurement of zeta potentials varied between −24 to −32 mV, revealing a strong surface charge interaction between pigments and PLE. Subsequently, its stability to high-speed centrifuge and freeze-thaw treatment was carefully investigated. To demonstrate the coverage of pigment particles by PLE, thermogravimetric analysis was carried out. Moreover, X-ray diffraction was used to disclose the combined impacts of PLE and ultrasonic power on the crystal structures of the pigments. Finally, the coloring performance and leveling properties of pigment dispersions on cotton substrates were evaluated by measuring their K/S values (color strength), rub and color fastness properties, which possessed good results. Research limitations/implications The dispersant used is incompatible with strong oxidizing agents and strong bases. More so, modification to improve its dispersion properties can be studied. Practical implications The use of PLE as a dispersant could be readily used in pigment dispersion processes and other suitable applications. PLE could also be used as a co-surfactant in synergy with other surfactants or dispersants in the dispersion process. Originality/value The use of PLE in pigment dispersion as well as investigating its coloring properties on cotton fabric is novel and can find various applications in the dying, printing and coating industry.
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El-Sabbagh, Salwa H., and Nivin M. Ahmed. "Enhancement of styrene-butadiene rubber composites using kaolin covered with metal oxide pigments." Pigment & Resin Technology 44, no. 2 (March 2, 2015): 57–73. http://dx.doi.org/10.1108/prt-03-2014-0028.
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Purpose – This paper aims to express in detail the rheological, morphological and thermal properties of unpigmented and pigmented styrene-butadiene rubber composites with new prepared inorganic pigment based on kaolin covered with a thin layer of calcium and magnesium oxides or mixed oxide of both together. These new pigments combine the properties of both their constituents (kaolin and metal oxides), which are a new trend in inorganic pigments called core-shell pigments. The pigments used for comparison are kaolin (K), CaO/kaolin (CaO/K), MgO/kaolin (MgO/K) and CaO.MgO/kaolin (CaO.MgO/K). Design/methodology/approach – The different pigments were characterized using different analytical and spectrophotometric techniques, such as X-ray diffraction, scanning electron microscopy/energy dispersive X-ray and transmission electron microscopy, while rubber vulcanizates' rheological, morphological, swelling and thermal properties were examined using different standard and instrumental testing and methods. Findings – The study revealed that there is a significant effect of the new prepared pigments on SBR properties, where the optimum pigment loading was 40 phr for CaO/kaolin, while it was 2.5 phr for MgO/kaolin. Studying the effect of different ratios of oxides on kaolin (5, 10 and 20 per cent), different loadings of these pigments ranging between 2.5 and 40 phr were done for each pigment. These modified kaolin or core-shell metal oxide/kaolin pigments imparted new and improved reinforcing properties to SBR vulcanizates. Research limitations/implications – No research limitations were found. Practical implications – Core-shell MgO/kaolin pigments are eco-friendly and can replace other expensive pigments that are usually used as fillers in the rubber industry with less expenses and comparable efficiency. Originality/value – These new pigments are cheap and efficient and can be used in different fields other than rubber.
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Sinhababu, Mohua, Anurag Roy, Narendra Kumar, Monojit Dutta, Senthilarasu Sundaram, Smagul Karazhanov, and Gopalkrishnan Udayabhanu. "Surface Treatment of Industrial-Grade Magnetite Particles for Enhanced Thermal Stability and Mitigating Paint Contaminants." Nanomaterials 11, no. 9 (September 4, 2021): 2299. http://dx.doi.org/10.3390/nano11092299.
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Pigments can retain their color for many centuries and can withstand the effects of light and weather. The paint industry suffers from issues like aggressive moisture, corrosion, and further environmental contamination of the pigment materials. Low-cost, long-lasting, and large-scale pigments are highly desirable to protect against the challenges of contamination that exist in the paint industry. This exploratory study reinforces the color and thermal stability of industrial-grade (IG) magnetite (Fe3O4). IG Fe3O4 pigments were further considered for surface treatment with sodium hexametaphosphate (SHMP). This metaphosphate hexamer sequestrant provides good dispersion ability and a high surface energy giving thermal and dust protection to the pigment. Various physicochemical characterizations were employed to understand the effectiveness of this treatment across various temperatures (180–300 °C). The X-ray diffraction, Raman, and X-ray photoelectron spectroscopy techniques signify that the SHMP-treated Fe3O4 acquired magnetite phase stability up to 300 °C. In addition, the delta-E color difference method was also adopted to measure the effective pigment properties, where the delta-E value significantly decreased from 8.77 to 0.84 once treated with SHMP at 300 °C. The distinct color retention at 300 °C and the improved dispersion properties of surface-treated Fe3O4 positions this pigment as a robust candidate for high-temperature paint and coating applications. This study further encompasses an effort to design low-cost, large-scale, and thermally stable pigments that can protect against UV-rays, dust, corrosion, and other color contaminants that are endured by building paints.
Dissertations / Theses on the topic "Pigment industry"
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Baker, Diane. "Studies of pigment-polymer interactions." Thesis, University of Dundee, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265594.
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McNair, Craig. "Synthetic approaches to substituted Ca4B-type azo compounds." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366902.
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Moral, Eva. "Flavor and pigment extraction from blue crab (Callinectes sapidus) processing by-products." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-06302009-040219/.
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Hélot, Frédérique. "Les pigments minéraux." Paris 5, 1998. http://www.theses.fr/1998PA05P046.
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Ferreira, Ana Maria da Conceição. "Separation of dyes with reversible aqueous biphasic systems." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/12572.
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Mestrado em Engenharia QuímicaThe main objective of this work conveys on the study of reversible aqueous two-phase systems (ATPS), constituted by ionic liquids (ILs), and their potential application for the selective separation of dyes mainly used in the textile industry. The textile manufacturing is one of the main industries which discharges a heavy load of chemicals, especially large contents of dyes during the dying process through wastewaters, which results in severe environmental and economic concerns. In this context, this work focuses on the applicability of reversible ATPS, as well as on the development of more benign systems than those studied hitherto, as an alternative technique for the removal of dyes from wastewaters. Additionally, special attention was also given to the understanding of the molecular mechanisms which rule the partitioning of dyes between the coexisting phases of ATPS. IL-based ATPS display a widespread applicability in the extraction, concentration and purification of a large range of compounds, including dyes. Thus, this work started with investigations on the extraction of a set of dyes (chloranilic acid, indigo blue and sudan III) using more conventional ATPS composed of ILs and an organic/inorganic salt. At this stage, the influences of the IL chemical structure, the salting-out ability of the salt employed and the consequent pH of the aqueous medium were evaluated by the dyes extraction efficiencies. The results obtained reveal that a proper selection of the IL and salt can lead to the complete extraction of the three dyes studied for the IL-rich phase in a single-step procedure. After demonstrating the high capacity of ATPS formed by ILs to extract dyes from aqueous phases, it was studied the applicability of pH-triggered reversible ATPS in the selective separation of organic and inorganic dyes (sudan III and pigment blue 27). The reversibility of this type of ATPS was achieved by the manipulation of the speciation of the organic salt used. The results obtained confirm the reversibility behaviour of ATPS by a pH-driven phenomenon, at least for three times, as well as their selective separation capability with both dyes being extracted for opposite phases. Finally, and after demonstrating the existence of reversible pH-triggered ATPS, mixtures of a polymer and cholinium-based ILs combined with anions derived from carboxylic acids were investigated, foreseeing the search of more benign and biocompatible systems. The reversibility of these systems was achieved with the speciation of the IL anion as a function of the pH. These systems were finally evaluated in what concerns their performance for the extraction and selective separation of dyes (sudan III, pigment blue 27 and pigment 29), and the study revealed that IL-polymer systems are capable of selectively extract organic and inorganic dyes for opposite phases.
O principal objetivo do presente trabalho recai no estudo de sistemas aquosos bifásicos (SAB) reversíveis, constituídos por líquidos iónicos (LIs), bem como na sua potencial aplicação para a separação seletiva de corantes utilizados maioritariamente pela indústria têxtil. Esta é uma das principais indústrias que liberta uma grande quantidade de produtos químicos, destacando-se a descarga de elevadas quantidades de corantes através dos respetivos efluentes aquosos, o que é motivo de elevada preocupação tanto a nível ambiental como económico. Este trabalho centra-se no estudo da aplicabilidade de SAB reversíveis, através de variações de pH do meio aquoso, assim como na procura de SAB constituídos por LIs mais benignos que os estudados até ao momento, como uma técnica alternativa para a remoção de corantes de efluentes aquosos. Adicionalmente, também se deu um especial destaque à interpretação dos mecanismos que regem a partição de corantes entre as duas fases neste tipo de sistemas. Os SAB constituídos por LIs apresentam uma grande aplicabilidade na extração e purificação de uma vasta gama de compostos, incluindo corantes. Assim, iniciou-se o presente trabalho com a extração de um conjunto de corantes (ácido cloroanílico, azul indigo, sudão III) utilizando SAB mais convencionais e constituídos por LIs e um sal orgânico/inorgânico. Nesta etapa avaliou-se o efeito da estrutura química do LI sobre a capacidade de extração, assim como o efeito do sal e consequente pH do meio. Os resultados obtidos revelaram que uma seleção adequada do LI e do sal pode conduzir à extração completa dos três corantes estudados e num único passo operacional. Após demonstrar a elevada capacidade de SAB constituídos por LIs para extrair corantes de fases aquosas, estudou-se a aplicabilidade de SAB reversíveis, por variações de pH, na separação seletiva de corantes orgânicos e inorgânicos (sudão III e pigmento azul 27). A reversibilidade deste tipo de SAB foi conseguida com a manipulação da especiação do sal orgânico utilizado. Os resultados obtidos confirmaram a reversibilidade dos SAB, pelo menos até três vezes, por variação do pH, assim como uma capacidade de extração seletiva de cada um dos corantes para fases opostas. Por fim, e após confirmada a existência de SAB reversíveis, estudaram-se misturas de um polímero e LIs da família das colinas com aniões derivados de ácidos carboxílicos com o intuito de encontrar sistemas mais benignos e biocompatíveis. A variação do pH e reversibilidade neste tipo de sistemas foi conseguida com a especiação do anião do LI. Estes sistemas foram finalmente avaliados no que respeita à sua capacidade de extração e separação seletiva de corantes (sudão III, pigmento azul 27 e pigmento 29), e o estudo revelou que os sistemas LI-polímero conduzem a uma extração seletiva entre os corantes orgânicos e os pigmentos inorgânicos.
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Espírito, Santo Edson Francisco do [UNESP]. "Comparação entre técnicas de secagem para a obtenção de biomassa de rubrivivax gelatinosus." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/94694.
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espiritosanto_ef_me_araca.pdf: 607997 bytes, checksum: b1cd5bfcd6380a159d28631a6bc8de1e (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
A cor de um alimento é de suma importância para a sua aceitação, pois serve como critério de qualidade. Os pigmentantes, ao serem adicionados na produção animal melhoram a coloração dos produtos e a aceitação pelo mercado consumidor. Tais aditivos podem ser elaborados a partir de diversas origens, inclusive de resíduos industriais, e podem ser processados por diferentes técnicas de secagem. Este estudo teve como objetivo comparar dois métodos de retirada de umidade da biomassa de Rubrivivax gelatinosus produzida em efluente de indústria de processamento de pescado, liofilização e atomização, em relação a rendimento do processo e recuperação, cor, composição químico-bromatológica e concentração de oxicarotenóides dos produtos. A bactéria foi cultivada nas águas residuárias citadas, sob condições de anaerobiose, temperatura e luminosidade controladas. Ao final do processo, a biomassa bacteriana foi processada por microfiltração e transformada em pó por meio de liofilização ou atomização. As técnicas não diferiram entre si em relação ao rendimento. A maior recuperação do produto (p = 0,004) e a mais elevada umidade (p = 0,0022) foram obtidas pela técnica de liofilização. As porcentagens de matéria mineral (p < 0,0001) e todos os parâmetros de cor (p < 0,0001) foram maiores para o produto obtido por atomização. Os outros constituintes analisados não diferiram significativamente entre as técnicas. Os resultados obtidos demonstraram que, apesar de resultar em menor recuperação, a atomização foi um processo mais rápido que a liofilização, apresentou rendimento equivalente a esta e originou um produto semelhante ao liofilizado em relação à composição químico-bromatológica e pigmentante. Este novo produto pode ser alvo de estudos posteriores para avaliar sua aplicação como componente pigmentante de ração animal
The color of a food is parameter of acceptance, because it serves as a quality criterion for the consumers. Pigments are added to animal feeding in order to improve the color of the products and, so, its acceptance. These additives can be made from various sources, including industrial wastes, and can be processed by different drying techniques. This study aimed at comparing two methods of water removal from Rubrivivax gelatinosus biomass produced in the effluent from fish processing industry, lyophilization and spray drying. Parameters analyzed were: process yield, recuperation, color, proximate composition and oxycarotenoids concentration of the products. The bacterium was grown in the wastewater under anaerobiosis and controlled temperature and light conditions. At the end of the process, the bacterial biomass was prepared by microfiltration and dried by freeze and spray drying. No difference was detected for yield between the drying techniques. The higher recuperation of the product (p = 0.004) and the higher moisture content (p = 0.0022) were achieved with lyophilization. The percentages of ash (p < 0.0001) and all color parameters (p < 0.0001) were higher for the product obtained by spray drying. The other constituents analyzed did not differ significantly. The results showed that, although resulting in less recuperation, the spray drying process was faster than lyophilization, had the same yield and produced a biomass similar to the lyophilized one in relation to composition and pigment concentration. This new product can be subjected to further studies to evaluate its use as a pigmenting component of animal feed
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Ouahdi, Noura. "Synthèse de l’aluminate de cobalt par voie sels fondus, caractérisation et application à la coloration des carreaux céramiques industriels." Toulouse 3, 2005. http://www.theses.fr/2005TOU30273.
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L’objectif est la synthèse, par voie sels fondus, d’un pigment bleu d’importance industrielle majeure, l’aluminate de cobalt. Les poudres obtenues ont été caractérisées par ICP, DRX, ATD/ATG, FTIR, MEB et MET, spectroscopie UV-Visible et analyse colorimétrique par la méthode L*a*b*. Les réactions des chlorures d’aluminium et de cobalt avec des bains fondus constitués de nitrates, de chlorures ou de sulfates alcalins aboutissent toujours à des mélanges de phases (Co3O4, CoAl2O4 et g Al2O3) dont la composition dépend de la nature du bain choisi. Ces mélanges sont très réactifs et se transforment en CoAl2O4 par chauffage à 1000°C sans palier. Les réactions de double décomposition entre l’oxyde mixte alcalin g LiAlO2 et le chlorure double KCoCl3, à 500°C pendant 24 heures, permettent d’obtenir directement l’aluminate de cobalt cristallisé. La poudre ainsi obtenue a été caractérisée puis testée pour la coloration de carreaux céramiques comparativement à un pigment industriel. Ces essais, réalisés dans la société marocaine Union Cérame, confirment que le pigment synthétisé en milieu sels fondus est un bon candidat pour l’utilisation dans la coloration des carreaux céramiques industrielsThe objective is the synthesis, by molten salts route, of a major industrial blue pigment, the cobalt aluminate. The powders obtained have been characterized by ICP, XRD, DTA/TGA, FTIR, SEM and TEM, UV-Visible spectroscopy and colourimetric analysis by the L*a*b* method. The reaction of cobalt and aluminium chlorides in molten medium constituted of alkali-metal nitrates, chlorides or sulfates always lead to mixtures of phases (Co3O4, CoAl2O4 and g Al2O3) which composition is depending on the nature of the molten bath. These mixture are very reactive and are transformed in CoAl2O4 by heating at 1000°C without any plateau. The double decomposition reactions between the mixed alkali-metal oxyde g LiAlO2 and the double chloride KCoCl3, at 500°C for 24 hours, lead directly to crystallized cobalt aluminate. The powders obtained have been characterized, then tested for the colouring of ceramic tiles comparatively to an industrial pigment. The tests, performed in the moroccan society Union Cerame, confirm that the pigment synthesized in molten salt medium is a good candidate for the use in the colouring of industrial ceramic tiles
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Catilaz-Simonin, Laurence. "Conception, mise au point, propriétés, d'un revêtement pigmenté polymérisable sous irradiation UV-visible." Mulhouse, 1992. http://www.theses.fr/1992MULH0253.
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Le travail présenté dans ce mémoire a pour objet le développement des revêtements pigmentés de forte épaisseur, opacifiants et photoréticulables par un rayonnement UV-visible. Ces formulations sont destinées à recouvrir des supports bois pour le marché de l'ameublement. Afin d'apporter une réponse à ce problème industriel, une recherche bibliographique exhaustive s'est avérée nécessaire pour définir les différents axes à suivre. Notre premier objectif fut de définir, en milieu épais pigmenté, les performances des photoamorceurs utilisés couramment dans les réactions de photopolymérisation. Pour une meilleure compréhension des limites observées sur les systèmes amorceurs, une étude a été menée ultérieurement sur les propriétés optiques des pigments et a permis de déterminer leur fenêtre de transmission dans le visible. Par conséquent, notre recherche s'est orientée vers des réactions de photopolymérisation sensibilisée par des colorants. Cette nouvelle orientation a permis la mise au point d'une formulation pigmentée pour différents coloris applicable à l'échelle industrielle.
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Maku, Lebogang Jennifer. "Identification and characterization of additives in colourants by advanced analytical techniques." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/98084.
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Thesis (MSc)--Stellenbosch University, 2015.ENGLISH ABSTRACT: Various types of anionic, non-ionic, cationic and zwitterionic additives are used in the coatings industry for the production of paints and colourants. These additives are added to enhance properties such as stabilization of pigment dispersions, wetting of pigments and improvement of open time and freeze/thaw stability. Very often the exact chemistry of these commercial additives is unknown and this is a limitation for new product developments. The identification and characterization of these multi-component polymeric materials continues to be a challenging task. This research presents the use of various advanced analytical techniques to identify and characterize commercial additives that are used in a multi-component colourant formulation. The focus of the present study is on additives that are based on poly(ethylene glycol) (PEG). The molar mass distribution of PEG-based additives was determined with liquid chromatography coupled to mass spectrometry (LC-MS) using solvent gradient elution and at critical conditions of adsorption (LCCC) of PEG. Using the combination of LC-MS, proton nuclear magnetic resonance spectroscopy (1H NMR), pyrolysis gas chromatography (py-GC-MS) and Fourier transform infrared spectroscopy in attenuated total reflectance mode (FTIR-ATR), different additives were identified in terms of the number and type of polymer end groups. The efficiency of the extraction and identification protocol was demonstrated for a blend of additives in a colourant formulation.
AFRIKAANSE OPSOMMING: Verskeie tipes anioniese, nie-ioniese, kationiese en zwitterioniese bymiddels word gebruik in die bedekking nywerheid vir die vervaardiging van verwe en kleurmiddels. Hierdie bymiddels word bygevoeg om sekere eienskappe, soos die stabilisering van pigment dispersie, benatting van pigmente en die verbetering van ope tyd en vries/dooi stabiliteit te versterk. Dikwels is die presiese chemie van hierdie kommersiële bymiddels onbekend en het dit ʼn beperking vir nuwe produk ontwikkeling tot gevolg. Die identifisering en karakterisering van hierdie meer-komponent polimeriese materiaal duur voort om ʼn uitdagings te wees. Hierdie navorsingstudie stel voor die gebruik van verskeie tegnieke om kommersiële bymiddels te identifiseer en karakteriseer wat in meer-komponent kleurmiddel formulasies gebruik word. Die fokus is geplaas op bymiddels wat gebaseer is op poli(etileen glikol) (PEG). The molêre massa verdeling van PEG-gebaseerde bymiddels was bepaal met vloeistofchromatografie gekoppel tot massaspektrometrie (VC-MS) met die gebruik van oplosmiddel gradient eluasie en by kritiese toestande van adsorpsie (VCKT) van PEG. Deur die kombinasie van VC-MS, proton kern magnetiese resonansie spektroskopie (1H KMR), pirolisegaschromatografie (pir-GC-MS) en Fourier-transformasie infrarooi spektroskopie in verswakking totale refleksie modus (FTIR-VTR), is verskillende bymiddels geïdentifiseer in terme van die hoeveelheid en tipe polimeer eindgroep teenwoordig. Die doeltreffendheid van die ekstrahering en identifisering protokol is gedemonstreer vir ʼn mengel van bymiddels in ʼn kleurmiddel formulering.
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Bohic, Mariane. "Caractérisation de la surface de pigments traités par des polyesters acrylique." Paris, ENMP, 2007. http://www.theses.fr/2007ENMP1456.
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Ce travail porte sur le traitement de surface de pigments, d’oxyde d’aluminium, de fer et de titane par des polyesters acrylique et l’analyse des propriétés qui en résultent. Les mesures d’angle de mouillage montrent que le traitement rend les pigments plus hydrophobes. Ces traitements sont ils complets, avec un recouvrement homogène de la surface et quels sont les types de liaisons formées ? L’analyse quantitative a été menée par thermogravimétrie et spectroscopie infrarouge après traitement et lavages par différents solvants. Les résultats cohérents montrent que les molécules sont fixées sur les trois oxydes de fer, une partie des molécules seulement sur l’oxyde de titane, avec une plus faible fraction fixée sur l’alumine. Des liaisons chimiques sont détectées par spectroscopie infrarouge, assisté par un modèle de mécanique quantique. Cependant l’AFM et l’XPS montrent que le traitement de la surface n’est pas homogène, le polymère se dépose sous forme d’îlots. L’observation directe par AFM sur des plaquettes d’alumine est décisive. Elle montre que ce mode de dépôt résulte de la conformation des molécules en pelotes. Cette hétérogénéité est inhérente à la structure macromoléculaire, dont la contribution entropique empêche le dépôt planaire sur la surface. Nous préconisons l’utilisation de molécules plus petites ou une polymérisation in-situThis work is devoted to the surface treatment by acrylic polyesters of aluminum, iron and titanium oxides pigments and of the resulting properties. The wetting angle measurements show out hydrophobic character of pigments after their treatment. Which is the polymer fraction applied on then surface, the homogeneity of covering and the character of bonds formed by the polymer with the surface? An almost complete polymer deposit is observed by thermogravimetry and by infrared spectroscopy which can be partly removed by a solvent as a function of surface oxide. A small part of the polymer remains on alumina, a larger part on titanium oxide and is fixed on the various iron oxide pigments. Chemical bonds are observed by infrared spectroscopy thanks to quantum mechanics attributions. The surface treatment is inhomogeneous on the surface, as shown by AFM and XPS, with the aspect of small islands of polymer. AFM direct observation on alumina is decisive for the discussion. Each island results from a statistic coil conformation of the polymer chains. The inhomogeneous covering is inherent on entropic contribution on energy of polymer chains which inhibit a planar covering of molecules on the oxide surfaces. The use of shorter molecules or in-situ polymerization should be favored
Books on the topic "Pigment industry"
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Richardson, J. A. The organic dye and pigment manufacturing industry. Harwell: ETSU, 1995.
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Blue pigments: 5000 years of art and industry. London: Archetype Publications, 2013.
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Casey, James P. Pigment-coated papers: A critical assessment of the processes, technical developments, and economics. New York: M. Dekker, 1985.
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Hayes, Teresa L., Wendy F. Marley, and Rebecca L. Friedman. Dyes & organic pigments industry. Cleveland: Freedonia Group, 1999.
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Petrone, Susan, and Mary F. Babington. Private companies in the dyes & pigments industry: Dyes, organic pigments & inorganic pigments. Cleveland, OH: Freedonia Group, Inc., 1998.
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Babington, Mary F., Anna Docktor, Tonia P. Bell, and Lori L. Mort. Dyes & pigments. Cleveland: Freedonia Group, 2000.
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Wanser, Stephen. Synthetic organic pigments. Washington, D.C: Office of Industries, U.S. International Trade Commission, 1997.
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Hayes, Teresa L., Wendy F. Marley, and Rebecca L. Bayrer. Pigments: Organic, inorganic & specialty. Cleveland, Ohio: Freedonia Group, 2001.
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Ita, Paul A., and Aaron Hackle. World dyes & organic pigments. Cleveland: Freedonia Group, 2000.
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Ita, Paul A., Aaron Hackle, and Pamela Prokop. Paint & coating materials: Resins, pigments, solvents, etc. Cleveland: Freedonia Group, 2000.
Find full textBook chapters on the topic "Pigment industry"
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Voelker, Werner. "The Growing Significance of Inclusion Pigment Stains in the Ceramics Industry." In Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 7, Issue 11/12, 1366–73. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470320365.ch28.
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"Paint and Pigment Industry." In Industrial Applications of X-Ray Diffraction, 527–42. CRC Press, 1999. http://dx.doi.org/10.1201/b16940-29.
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Bajpai, Pratima. "Recovery of Coating Color, Pigments, and Fillers." In Pulp and Paper Industry, 195–204. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-811103-1.00009-7.
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García-Vaquero, Marco, Nigel Brunton, and Tomás Lafarga. "Microalgae as a source of pigments for food applications." In Cultured Microalgae for the Food Industry, 177–98. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-821080-2.00014-9.
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Mandal, Madan Kumar, Ng Kunjarani Chanu, and Neha Chaurasia. "Cyanobacterial pigments and their fluorescence characteristics: applications in research and industry." In Advances in Cyanobacterial Biology, 55–72. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-819311-2.00005-x.
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Pargai, Deepti. "Application of Smart and Functional Dyes in Textiles." In Dyes and Pigments - Novel Applications and Waste Treatment. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96045.
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Our future will be based on functional and AI based smart products, where every industry wants to develop these kinds of products. Textile industry also cannot remain untouched with this technological innovation. Dyes have been utilising for coloration of textiles since ancient time. But at present with various advancement in technology as well as requirements of consumers, the need for functional and smart dyes arises. Various current researches are based on application of smart and functional dyes on textile to develop smart and functional textiles. The dyes which add the functional and smart properties to the textiles can be called as functional and smart dyes. Functional and smart dyes are available in both synthetic and natural form. But with the environment concern, the researchers are going on to find out natural source of these dyes. Functional dyes such as UV protective dye, antimicrobial dye, moth repellent dye offer specific function after application on textiles. Smart dyes like photochromic, thermochromic, electrochromic and solvatochromic etc. are playing very imp role to develop a smart textile which can offer reversible colour change which leads to impart various properties such as thermoregulation, camophlage properties into the textiles. Functional dyes generally limited to the textiles sector but smart dyes are not just restricted to it. Application of smart dyes is extended to various fields such as automobiles, robotics, aircrafts, medicine and surgery etc. This chapter will mainly deal with the types, application methods and application area of functional and smart dyes especially in connection with textiles.
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Singh, Aarti, Anupama Mittal, and Nirmala Kumari Jangid. "Toxicology of Dyes." In Impact of Textile Dyes on Public Health and the Environment, 50–69. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0311-9.ch003.
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Colours play a prominent and dominant role in human life. The dominating feature of any product has been found with its colours elevating the market of colouration in different sectors. Studies have shown that around 10,000 dyes are being circulated in market. Chemistry has been found to lead this industry of colours. Vast production of fabric colours include azo dyes, whereas anthroquinone is also one of the prevailing complexes for cotton and fabric dyeing. The toxic level of the dyes and pigments are not confined till manufacturing but also have after usage effect of the products. It has been found that the chemicals have a carcinogenic effect on human health. During the manufacturing procedure, around 50% of dye stuff gets along with the effluents of the industry leading to release of colourful water. Modification in choice of chemicals is being considered to lessen the toxic effects of existing complexes. This chapter is mainly focused on the toxicology of dyes.
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Singh, Rajender, and Mamta Chauhan. "Effective Management of Agro-Industrial Residues as Composting in Mushroom Industry and Utilization of Spent Mushroom Substrate for Bioremediation." In Advances in Environmental Engineering and Green Technologies, 158–77. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9734-8.ch008.
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Different types of edible mushrooms like Agaricus, bisporus, A. bitoriqus, Pleurotus spp., Volvariella volvacea, Lentinula edodes, Calocybe indica, Flamullina, Ganoderma lucidum etc. are cultivated in industrial scale. Majority of edible fungi secretes extracellular Ligninocellulolytic enzymes like Laccase, lignin peroxidase, manganese peroxidase, cellulase etc. for effective conversion of ligninocellulolytic substrate to compositing form which led to fruiting of mushrooms. Consequently, an adequate disposal method is needed for the high quantities of spent mushroom substrate (SMS) generated in this agro-food industrial activity. On the other side, textile industry among the largest water consuming industries in the world and approximately, 10,000 different dyes and pigments are used at industrial scale. It is estimated that nearly 40% of the total dyes used in the dyeing process may find their way in wastewater. So, there is an attempt to utilize the ligninolytic enzymes rich SMS of different mushroom for efficiently biodegradation of textile wastewater & polyaromatic pollutants.
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Singh, Rajender, and Mamta Chauhan. "Effective Management of Agro-Industrial Residues as Composting in Mushroom Industry and Utilization of Spent Mushroom Substrate for Bioremediation." In Waste Management, 1217–36. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1210-4.ch055.
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Different types of edible mushrooms like Agaricus, bisporus, A. bitoriqus, Pleurotus spp., Volvariella volvacea, Lentinula edodes, Calocybe indica, Flamullina, Ganoderma lucidum etc. are cultivated in industrial scale. Majority of edible fungi secretes extracellular Ligninocellulolytic enzymes like Laccase, lignin peroxidase, manganese peroxidase, cellulase etc. for effective conversion of ligninocellulolytic substrate to compositing form which led to fruiting of mushrooms. Consequently, an adequate disposal method is needed for the high quantities of spent mushroom substrate (SMS) generated in this agro-food industrial activity. On the other side, textile industry among the largest water consuming industries in the world and approximately, 10,000 different dyes and pigments are used at industrial scale. It is estimated that nearly 40% of the total dyes used in the dyeing process may find their way in wastewater. So, there is an attempt to utilize the ligninolytic enzymes rich SMS of different mushroom for efficiently biodegradation of textile wastewater & polyaromatic pollutants.
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Rickard, David. "Pyrite and the Origins of Civilization." In Pyrite. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190203672.003.0006.
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Pyrite is an often-overlooked material today although it has been instrumental in enabling many aspects of our modern culture and industry. This bright, brassy mineral is the most abundant metal sulfide in the Earth’s crust and provides a marked chemical contrast to the duller silicates and oxides that constitute most rocks. Most people today are familiar with the mineral, even though they do not know its details, because it stands out in the natural environment and because of the connection with fool’s gold. Pyrite has been a source of both metals and sulfur since ancient times, and both of these commodities have been key to our civilization. The mineral is easily decomposed by heat with the production of sulfur, sulfur oxide gases, and a metal-rich slag. It oxidizes readily in aerated water to form red and yellow ochers that may be used as pigments. It commonly occurs with other valuable metals that may be extracted by leaching or heating with various fluxes. In summary, it is an exceptional mineral whose benefits were readily available to primitive societies and have led to the development of our modern civilization. One of the extraordinary facets of our modern civilization is that we take lighting fires for granted. All you need is a cheap match. However, this is a relatively recent invention. So how did the early Victorians and their predecessors light their fires? Old films and television series, the so-called costume dramas, rarely, if ever, show people lighting fires. One reason for this was that lighting a fire could be a long process, so once it was lit, it was kept going. Even I remember that letting the fire go out was a heinous crime in the days before central heating, when our house was heated by a coal fire. The fire was kept going during the coldest winter weeks: it was banked up at night with coal, which kept it nicely smoldering while we slept. Its heat prevented the water pipes in the house from freezing during the iciest nights and subsequently bursting when they were warmed up again.
Conference papers on the topic "Pigment industry"
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Kvaterniuk, Serhii, Olena Kvaterniuk, Vasil Petruk, Anastasiia Mandebura, Svyatoslav Mandebura, Zaklin M. Gradz, Saule Rakhmetullina, and Mukaddas Arshidinova. "Multispectral environmental monitoring of phytoplankton pigment parameters in aquatic environments." In Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2019, edited by Ryszard S. Romaniuk and Maciej Linczuk. SPIE, 2019. http://dx.doi.org/10.1117/12.2536809.
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Gasanov, A. A., and L. B. Farzaliyeva. "Purification of pigment contaminated wastewater by the adsorption method in the textile industry." In SCIENCE OF RUSSIA: TARGETS AND GOALS. LJournal, 2019. http://dx.doi.org/10.18411/sr-10-06-2019-03.
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Ozcan, Arif, Emine Arman Kandirmaz, and Omer Bunyamin Zelzele. "The effect of deinking and binder type on inkjet print quality." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p43.
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In the printing industry, as in all other industries, efficient use of resources, sustainable production and economics are among the most important issues. The increasing use and purpose of printed products, the increasing consumer demands and the development of technology also increase the demand for paper products. Paper and cardboard materials in line with the increasing consumer demand to give better printing characteristics are implemented in a number of operations. These processes are sizing, coating, and calendering. The recycling and re-use of paper and cartons that have been treated on the surface may also differ from those that have not been treated on the surface. For this purpose, test prints were made on paper coated with cationic starch and PVOH binders and precipitated calcium carbonate (PCC) pigment before and after recycling with Inkjet printing system, which is widely used today. The effect of both recycling and binder type on the quality of the resulting prints has been studied. The colour value, dot gain, whiteness and yellowness of the prints were made using X-Rite eXact spectrophotometer. The gloss measurements were carried out with BYK-Gardner glossmeter. In addition, images of coated papers were analyzed with scanning electron microscope SEM. As a result, it was determined that there was a negative change in the colour and whiteness of the papers after recycling, but the resulting papers had a good printability value when examined in terms of printability. It has also been concluded that the PVOH binder has a more positive impact on printability.
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Viana, Tania, Sara Biscaia, Henrique A. Almeida, and Paulo J. Bártolo. "PCL/Eggshell Scaffolds for Bone Regeneration." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20213.
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Eggshell (ES) is one of the most common biomaterials in nature. For instance, the ES represents 11% of the total weight of a hen’s egg and it is composed of calcium carbonate, magnesium carbonate, tricalcium phosphate and organic matter. Hen ES are also a major waste product of the food industry worldwide. Recently, ES have been used for many applications such as coating pigments for inkjet printing paper, catalyst for biodiesel synthesis, bio-fillers for polymer composites and matrix lipase immobilization. It is also considered a natural biomaterial with high potential for the synthesis of calcium enriched implants that may be applied in tissue engineering applications, such as bone regeneration. The aim of this research regards the production of poly(ε-caprolactone) (PCL) scaffolds enriched with hen ES powder for bone regeneration applications, using an extrusion-based process called Dual-Bioextruder. The main objective is to investigate the influence of the addition of ES powder on the PCL matrix. For this purpose the structures were characterised regarding morphological and chemical properties. Morphological images of the PCL scaffolds enriched with hen ES, demonstrated the interconnectivity of the pores within the scaffold and revealed that the addition of the ES powder combined with the screw rotation velocity has a large influence on the resulting filament diameter and consequently on the porosity of the scaffolds.
Reports on the topic "Pigment industry"
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Porcel Magnusson, Cristina. Unsettled Topics Concerning Coating Detection by LiDAR in Autonomous Vehicles. SAE International, January 2021. http://dx.doi.org/10.4271/epr2021002.
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Autonomous vehicles (AVs) utilize multiple devices, like high-resolution cameras and radar sensors, to interpret the driving environment and achieve full autonomy. One of these instruments—the light detection and ranging (LiDAR) sensor—utilizes pulsed infrared (IR) light, typically at wavelengths of 905 nm or 1,550 nm, to calculate object distance and position. Exterior automotive paint covers an area larger than any other exterior material. Therefore, understanding how LiDAR wavelengths interact with vehicle coatings is extremely important for the safety of future automated driving technologies. Sensing technologies and materials are two different industries that have not directly interacted in the perception and system sense. With the new applications in the AV industry, multidisciplinary approaches need to be taken to ensure reliability and safety in the future. Unsettled Topics Concerning Coating Detection by LiDAR in Autonomous Vehicles provides a transversal view of different industry segments, from pigment and coating manufacturers to LiDAR components and vehicle system development and integration. The report includes a structured decomposition of the different variables and technologies involved.
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Ararat Orozco, Milton César, Oscar Eduardo Sanclemente Reyes, and Leonardo Vergara Patiño. Perspectivas industriales en tecnologías de biofijación de CO2 por microalgas. Universidad Nacional Abierta y a Distancia, December 2020. http://dx.doi.org/10.22490/ecapma.3481.
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El uso de las microalgas en diferentes sectores de la industria se ha convertido recientemente en una técnica atractiva para la captura y reciclaje del CO2, con beneficios adicionales como la depuración de aguas residuales utilizadas como medio de cultivo y los posibles usos de la biomasa resultante. Conceptualmente la captura CO2 mediante el proceso fotosintético de las microalgas puede considerarse una tecnología competente debido a su eficiencia en la conversión de este gas en compuestos orgánicos a través de su uso como nutriente en el medio de cultivo. Esta revisión tiene como objetivo socializar una perspectiva frente a tecnologías direccionadas a los desafíos en el tema de los impactos ecológicos por la biofijación de CO2 por microalgas. Se realizó una búsqueda de los trabajos investigativos actuales relacionados con el cultivo de microalgas enfocados en la biofijación de CO2 y producción de biomasa, mediante cultivos en diferentes medios como las aguas residuales. Ciertos estudios han mostrado que la especie Scenedesmus sp. no solo realizan fijación de CO2 sino también que pueden convertir aproximadamente 15-25% de CO2 atmosférico en biodiésel. Además, su biomasa podría almacenar pigmentos (luteína) como aditivo en el tratamiento comercial de alimentos. Otra especie como Chlorella vulgaris se ha usado en la eliminación de elementos contaminantes de las aguas residuales. El cultivo de microalgas con fines de obtención de biomasa y captura de CO2 puede proyectarse como una estrategia viable económicamente siempre y cuando, su cultivo este asociado al tratamiento de cuerpos de aguas residuales.