Feasibility of Coloring Bamboo with the Application of Natural and Extracted Fungal Pigments

Gutierrez, Sarath M. Vega; Gutierrez, Patricia T. Vega; Godinez, Auna; Pittis, Lauren; Huber, Megan E.; Stanton, Savannah; Robinson, Seri C.

doi:10.3390/coatings6030037

Cited by 22 publications

(20 citation statements)

References 26 publications

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“…Images obtained with SEM gave a detailed view of the extracted fungal pigments’ topography. A study by Vega et al on bamboo [ 12 ], showed that the pigments of S. cuboideum formed a rough surface on the hyphae cell wall, while microscopy on the genus Chlorociboria did not find a specific structure of the pigments within the hyphae and the colored areas [ 18 ]. The lack of a specific morphology was confirmed for the extracted pigments of S. ganodermophthorum and C. aeruginosa , but for S. cuboideum , crystal-like structures were observed.…”

Section: Discussionmentioning

confidence: 99%

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Microscopic Analysis of Pigments Extracted from Spalting Fungi

Gutierrez

Robinson

2017

JoF

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Pigments that are currently available in the market usually come from synthetic sources, or, if natural, often need mordants to bind to the target substrate. Recent research on the fungal pigment extracts from Scytalidium cuboideum, Scytalidium ganodermophthorum, Chlorociboria aeruginosa, and Chlorociboria aeruginascens have been shown to successfully dye materials, like wood, bamboo, and textiles, however, there is no information about their binding mechanisms. Due to this, a microscopic study was performed to provide information to future manufacturers interested in these pigments. The results of this study show that S. ganodermophthorum and C. aeruginosa form an amorphous layer on substrates, while S. cuboideum forms crystal-like structures. The attachment and morphology indicate that there might be different chemical and physical interactions between the extracted pigments and the materials. This possibility can explain the high resistance of the pigments to UV light and color fastness that makes them competitive against synthetic pigments. These properties make these pigments a viable option for an industry that demands natural pigments with the properties of the synthetic ones.

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Section: Discussionmentioning

confidence: 99%

“…Pigment-type spalting fungi are a select group of soft-rotting ascomycetes that have been shown to reliably dye a number of substrates, including wood [ 11 ], bamboo [ 12 ], and textiles [ 9 , 13 ]. These pigments have been found to be light fast, color fast [ 9 ], and UV light stable [ 9 , 10 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Microscopic Analysis of Pigments Extracted from Spalting Fungi

Gutierrez

Robinson

2017

JoF

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“…Vega Gutierrez et al . () have even reported the use of fungal pigments in colouring bamboo used in lumber market. The size of the colour market is unknown as there are no reliable published statistics on it, however, on a global scale it can be estimated to be approx.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a red pigment from Fusarium chlamydosporum exhibiting selective cytotoxicity against human breast cancer MCF-7 cell lines

et al. 2018

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“…As the carrier is the differentiating factor, the difference may be due to the slow evaporation time of the oil. Previous tests [19,27] have shown that the colors on various substrates "build" in saturation with more coats applied, but only if the carrier from the previous application has completely dried. When using DCM, this process is quite fast and textiles either capable of holding more pigment, or upon which the pigment has a unique formation [18] (e.g., polyester), end up with a much higher amount of color change.…”

Section: Final Testing-drippingmentioning

confidence: 99%

Wood-Rotting Fungal Pigments as Colorant Coatings on Oil-Based Textile Dyes

et al. 2017

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Abstract:Opportunities for alternatives to synthetic textile dyes are of increasing importance as the world looks to minimize its ecological footprint. Fungal pigments within a unique class of wood-rotting ("spalting") fungi have been under investigation for several years as a possible solution, and have been shown to be ideally suited as textile dye coatings. Unfortunately, the solvent currently in use for these colorants is dichloromethane (DCM), which is an environmental problem as well as a potential human carcinogen. Recently, researchers found that the pigments from Chlorociboria species, Scytalidium cuboideum, and Scytalidium ganodermophthorum could be carried in some natural oils, which opened up a potential method of delivering pigments onto a host of substrates without utilizing DCM. Although the pigments can be carried in oil, no testing has thus far been conducted as to how oil affects the binding properties of the pigments onto textiles, or how the oil might affect the pigments directly. In this paper, the pigments produced by three well-known wood-rotting fungi were carried in raw linseed oil and applied to cotton, polyester, and nylon. Only the red pigment produced visible color change on the textiles. Cotton and polyester showed the greatest color change when the pigments were dripped onto the fabric, while polyester showed the most color when the textile was submerged into the pigment solution. Unfortunately, the colors faded significantly for all the tests except the saturation test. This indicates that while natural oils may be excellent, nontoxic alternative carriers for DCM, the pigments are not stable within them except at very high concentrations, and therefore natural oils-including raw linseed oil-are not ideal for use in conjunction with these pigments.

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Feasibility of Coloring Bamboo with the Application of Natural and Extracted Fungal Pigments

Cited by 22 publications

References 26 publications

Microscopic Analysis of Pigments Extracted from Spalting Fungi

Microscopic Analysis of Pigments Extracted from Spalting Fungi

Characterization of a red pigment from Fusarium chlamydosporum exhibiting selective cytotoxicity against human breast cancer MCF-7 cell lines

Wood-Rotting Fungal Pigments as Colorant Coatings on Oil-Based Textile Dyes

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