Extração de corantes de milho (Zea mays L.)

Gamarra, Félix Martin Carbajal; Leme, Gisele Costa; Tambourgi, Elias Basile; Bittencourt, Edison

doi:10.1590/s0101-20612009000100010

Cited by 10 publications

(12 citation statements)

References 23 publications

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“…The colorant extracted from purple corn (Zea mays L.) seems to be used by the Inca civilization both to prepare food and to dye textile fibers, [16] and still nowadays, people from the Andean region use the purple extract from this corn to dye textiles together with cochineal to obtain red and purple colors and to save the expensive dye cochineal. [28] The principal anthocyanins found in Zea mays L. are CYN 3glucoside, peonidin 3-glucoside and CYN 3-(6″-malonylglucoside).…”

Section: Elder (Sambucus Nigra L)mentioning

confidence: 99%

“…[13] Also, the pre-Columbian civilizations, such as Maya [15] and Incas, [16] seem to have used the local vegetable sources of anthocyanins for dyeing: for example, the colorant extracted from purple corn (Zea mays L.) was used by the Inca civilization to prepare food and to dye textile fibers. [16] Finally, as well resumed by Melo, [15] the use of vegetable sources of anthocyanins as "watercolors" was frequently described in several treatises or recipe books on illumination such as the Strasbourg manuscript, an early Portuguese work on manuscript illumination and the Italian De arte illuminandi. Especially, plants containing anthocyanins could be used to produce clothlets ("pezzuole") as described by Cennino Cennini in the 15 th century.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, ancient recipes show that early Celtic and Germanic peoples used the strongly colored juices of wild berries to dye their hair and clothes obtaining purple shades much more cheaply than with seashells . Also, the pre‐Columbian civilizations, such as Maya and Incas, seem to have used the local vegetable sources of anthocyanins for dyeing: for example, the colorant extracted from purple corn ( Zea mays L.) was used by the Inca civilization to prepare food and to dye textile fibers . Finally, as well resumed by Melo, the use of vegetable sources of anthocyanins as “watercolors” was frequently described in several treatises or recipe books on illumination such as the Strasbourg manuscript, an early Portuguese work on manuscript illumination and the Italian De arte illuminandi .…”

Section: Introductionmentioning

confidence: 99%

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Identification of anthocyanins in plant sources and textiles by surface-enhanced Raman spectroscopy (SERS)

Zaffino

Bruni

Russo

et al. 2015

J. Raman Spectrosc.

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The aim of the present study was to provide experimental procedures for the identification of anthocyanin‐based dyes used in antiquity. In particular, we assessed the possibility to identify anthocyanins, both in plant extracts and in dyed textiles, by means of surface‐enhanced Raman spectroscopy (SERS), a very chemically specific technique that is moreover sensitive to the changes in structures of molecules, phenomena that occur extensively in the chemistry of anthocyanins. The choice of the plant sources (bilberry, elderberry, sumac, purple corn and hollyhock) was based on their attested use in history as dyeing matters. Suitable extraction and pre‐treatment procedures were optimized both for plant sources (berries, cob glumes and flowers) and textiles dyed with such sources in the laboratory, followed by SERS analyses at different pH values. Finally, special attention was paid to the well‐known instability of anthocyanins: dyed wool samples were exposed to artificial aging in order to verify the possibility to identify such molecules also in faded textiles. The achievement of reliable surface‐enhanced Raman spectra from these samples encourages us to suggest the protocol for the analysis of historical objects. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Elder (Sambucus Nigra L)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Identification of anthocyanins in plant sources and textiles by surface-enhanced Raman spectroscopy (SERS)

Zaffino

Bruni

Russo

et al. 2015

J. Raman Spectrosc.

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“…Dentre os corantes naturais, as antocianinas é um dos maiores e principais grupos. Elas são pigmentos vegetais responsáveis por uma grande variedade de cores observadas em flores, frutos, algumas folhas, caules, raízes de plantas, que vão desde as tonalidades claras como rosa e vermelho, até tonalidades escuras como roxa, azul e preta (Bobbio & Bobbio, 1995;Gamarra, et al, 2009).…”

Section: Introductionunclassified

Desenvolvimento e caracterização de microcápsulas de pericarpo de milho vermelho (Zea mays L.)

Fernandes

Fiorillo

Aranha

2022

RSD

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Para tornar um alimento atrativo as indústrias utilizam corantes, sendo assim, eles são uma das principais classes dos aditivos essenciais para as indústrias alimentícias. Dentro destes podem-se citar as antocianinas como um dos maiores e principais grupos de pigmentos. A microencapsulação é uma tecnologia usada para proteger produtos de interferências como luz e oxigênio, entre outros, onde o encapsulante age como uma camada protetora. Desta forma, o objetivo desse estudo foi obter a composição proximal dos grãos de milho vermelho (Zea mays L.), caracterizar o extrato do pericarpo do milho vermelho quanto a atividade antioxidante e obter e caracterizar microcápsulas de extrato do pericarpo do milho vermelho por spray dryer, utilizando goma arábica como material de parede. Para isso as microcápsulas foram avaliadas em relação a atividade de água, umidade, rendimento de secagem, solubilidade, molhabilidade, eficiência da encapsulação, retenção de antocianinas, cor e parâmetros de morfologia. Além disso, analisou-se o grão do milho para obtenção da composição centesimal e também se fez a caracterização do extrato do pericarpo do milho vermelho. Como resultado, o pó apresentou baixa umidade e atividade de água, o que é ideal para que um produto tenha vida útil estendida. O rendimento de secagem encontrado foi bem elevado, assim como a solubilidade e a molhabilidade das microcápsulas. Análise de cor apresentou resultados semelhantes para o pericarpo e para as cápsulas ambas tendendo para a coloração vermelha. Desta forma a utilização das microcápsulas de extrato de pericarpo de milho vermelho podem se tornar uma alternativa viável como corante alimentício.

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“…O desenvolvimento de doenças degenerativas na população e impactos ambientais causados pelo uso indiscriminado de corantes sintéticos levou a questionamentos de organismos internacionais, fazendo crescer ainda mais o interesse com respeito aos corantes naturais (LOKHANDE;DORUGADE, 1999;GUARANTINI;ZANONI 1999;GAMARRA et al, 2009).…”

Section: Retorno Dos Corantes Naturaisunclassified

Resíduo líquido do tratamento com vapor da madeira de Eucalyptus grandis Hill ex. Maiden, aplicado como corante têxtil natural

Rossi¹

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Natural dyes are gaining interest due to their expected low risk to human health and the environment. A source of natural dye was found in industrial operation of steaming Eucalyptus grandis wood. The liquid waste generated at the end of the process has been discarded. Due to this fact and the intensity of the color of the product, it was emerged the idea of this study, considering natural dye for textile fabrics. The waste was used for dyeing cotton, nylon and wool by exhaustion dyeing process. The effects of the dye concentration, the application in liquid and powder form, time, temperature, pH of the dyeing bath and the addition of metal salts in the bath were evaluated. The physic-chemical characteristics of the waste as pH, color, thin layer chromatography, and total solids and condensed tannins were also investigated. The resulting dyed fabrics were evaluated for color fastness to light, domestic washing and rubbing. The waste showed brown color, acidic pH, average total solids content of 2.2% and content of condensed tannins of 0.93%. The results from thin layer chromatography of the residue suggested the presence of tannic acid in its composition. Regarding the color fastness, it was found a very good result considering domestic washfastness, with lightfastness typical of natural dyes. The rubbing fastness was good, especially for cotton, which presented excellent grades. It was possible to consider the liquid residue as product potentially destined to the textile industry, regarding the natural dyeing of cotton, nylon and wool.

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Extração de corantes de milho (Zea mays L.)

Abstract: Extração de corantes de milho (Zea mays L.) Extraction of corn colorants (Zea mays L.

Cited by 10 publications

References 23 publications

Identification of anthocyanins in plant sources and textiles by surface-enhanced Raman spectroscopy (SERS)

Identification of anthocyanins in plant sources and textiles by surface-enhanced Raman spectroscopy (SERS)

Desenvolvimento e caracterização de microcápsulas de pericarpo de milho vermelho (Zea mays L.)

Resíduo líquido do tratamento com vapor da madeira de Eucalyptus grandis Hill ex. Maiden, aplicado como corante têxtil natural

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