Examining safety of biocolourants from fungal and plant Sources - examples from Cortinarius and Tapinella, Salix and Tanacetum spp. and dyed woollen fabrics

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Räisänen , R , Primetta , A , Nikunen , S , Honkalampi , U , Nygren , H , Pihlava , J-M , Vanden Berghe , I & von Wright , A 2020 , ' Examining safety of biocolourants from fungal and plant Sources - examples from Cortinarius and Tapinella , Salix and Tanacetum spp. and dyed woollen fabrics ' , Antibiotics , vol. 9 , no. 5 , 266 . https://doi.org/10.3390/antibiotics9050266

Title: Examining safety of biocolourants from fungal and plant Sources - examples from Cortinarius and Tapinella, Salix and Tanacetum spp. and dyed woollen fabrics
Author: Räisänen, Riikka; Primetta, Anja; Nikunen, Sari; Honkalampi, Ulla; Nygren, Heli; Pihlava, Juha-Matti; Vanden Berghe, Ina; von Wright, Atte
Contributor: University of Helsinki, Department of Education
University of Helsinki, Department of Education
Date: 2020-05-20
Language: eng
Number of pages: 25
Belongs to series: Antibiotics
ISSN: 2079-6382
URI: http://hdl.handle.net/10138/315447
Abstract: Biocolourants have been investigated as alternatives to synthetic dyes. However, natural origin per se is not a label of harmlessness and research is needed to obtain safe dyes. We studied the cytotoxicity of the extracts from fungal (Cortinarius semisanguineus, Tapinella atrotomentosa) and plant (Tanacetum vulgare, Salix phylicifolia) sources and the woollen fabrics dyed with the extracts. Cytotoxicity in vitro using hepa-1 mouse hepatoma cells for 24 h and 72 h exposure was observed as the highest tolerated dose. All biocolourants produced intensive colour on fabrics with fastness properties from moderate to good. The Salix and Cortinarius samples did not show any cytotoxic effects, whereas the Tanacetum and Tapinella samples had slightly higher test values but were not interpreted as being significantly toxic. Higher than zero values of the undyed fabrics showed the importance of examining their toxicity as well. It was found that the cytotoxicity of the samples dyed with the biocolourants did not differ significantly from the undyed wool fabric. The concentrations of dyes used in the assays were very low, imitating the dose of the user. In addition to colouring properties, natural dyes may have pharmaceutical and antibacterial properties which would enhance the interest in using them in products for added value.
Subject: 11831 Plant biology
natural dye
biocolourant
secondary metabolite
in vitro
cytotoxicity
mouse hepatoma cell
highest tolerated dose
HPLC-UV
safety assessment
textile dyes
flavonoids
Tanacetum vulgare L
genus Cortinarius
anthraquinones
genus Tanacetum
genus Salix
genus Tapinella
116 Chemical sciences
HPLC analysis
UV/Vis-MS
222 Other engineering and technologies
textiles
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