Environmental and molecular approach to dye industry waste degradation by the ascomycete fungus Nectriella pironii

Textile industry effluents and landfill leachate contain chemicals such as dyes, heavy metals and aromatic amines characterized by their mutagenicity, cytotoxicity and carcinogenicity. The aim of the present study was investigation of the ascomycete fungus N. pironii isolated from urban postindustrial textile green space for its ability to grow and retain metabolic activity in the presence of the dye industry waste. Research focused mainly on dyes, heavy metals and aromatic amines, which had been detected in landfill leachate via HPLC–MS/MS analysis. Presence of all tested compounds as well as leachate in the growth medium clearly favored the growth of fungal biomass. Only slight growth limitation was observed in the presence of 50 mg L-1o-tolidine. The fungus eliminated o-tolidine as well as dyes at all tested concentrations. The presence of metals slightly influenced the decolorization of the azo dyes; however, it was still similar to 90%. During fungal growth, o-tolidine was hydroxylated and/or converted to toluidine and its derivatives. Laccase and cytochrome P450 involvement in this process has been revealed. The results presented in the paper provide a valuable background for the development of a fungus-based system for the elimination of toxic pollutants generated by the textile industry.

Industry

The pharmaceutical industry began in 1858, with August Kekulé’s discovery of the benzene ring, which formed the basis of the dye industry that eventually turned into the pharmaceutical industry. Merck and Pfizer bought medicinal chemicals in bulk and processed them into pharmaceuticals for sale to pharmacies or directly to physicians, who dispensed them to patients. The idea of selling medicine was to displace the compounding pharmacist as the manufacturer of pharmaceuticals. The pharmaceutical industry accelerated with the introduction of a new pill-making technology: in 1900, with the aspirin, Bayer in Leverkusen became the first drug company to market a major product in tablet form. Drug manufacture transitioned into an industry that went into full swing in the 1920s.

Orange Peel-Based Adsorbent for the Removal of C.I. Disperse Blue 56 from Textile Dye Industry Effluents

This study demonstrates the viability of an orange peel-based adsorbent as sustainable alternative for the elimination of the disperse dye C.I. Disperse Blue 56 present in waste waters of the dyeing industry of textiles. The effectiveness of the adsorbent is evaluated at different pH values and the adsorption capacity is determined by systematically comparing orange peel and the final adsorbent chemically treated. Results reveal an spontaneous coagulation-flocculation phenomenon of the dispersed dye at low pH values which represents a sustainable way for the recovery and possible re-use of the dye, together with the industrial valorisation of a wasting product as is orange peel.

Cocrystal Hydrate of Bandrowski’s Base and Clotrimazole: A Prospective Ingredient for Hair Dye Formulation

The serendipitous formation of Bandrowski’s Base, an oxidized trimer of p-phenylenediamine, a backbone molecule of the hair dye industry, in the presence of the antifungal/antidandruff agent clotrimazole, and the subsequent...

Analysis of some conserved miRNAs in hazelnut (Corylus avellena L. and Corylus colurna L.) by real-time PCR

Hazelnut is an important plant species which is used in food industry, dye industry, wood- chopping and stock farming and it has also benefits for health due to nutrient component. Eco- nomically valuable Corylus avellena and Corylus colurna used as rootstock are the most com- mon cultivars. Although many studies have been made about microRNA in plants so far, there are few studies in hazelnut. miRNAs are 18–25 nucleotide, short and single strand non-coding RNAs. miRNAs called as post-transcriptional gene regulators cause repress or cleavage of their target mRNA. In particularly in plants, they cause cleavage of mRNA and so play role in devel- opmental process, response process to biotic and abiotic stresses like drought, salt, cold or UV. Conserved miRNAs are miRNAs which have same function in different plant species and are conserved from very old times to the present. In this study, we aimed that analyzing of some conserved miRNAs (miR159, miR160, miR171, miR396, miR2919 and miR8123) in hazelnut (Corylus avellena L. and Corylus colurna L.) by Real-Time PCR. We found which these con- served miRNAs are present in both hazelnut species.

Textile fabric's and dyes

Textiles sectors serve up the outfit needs of every day and this industry plays a major role in the economy of the country. All the textile fabrics are either natural or synthetic fibers or a blend of both. Different types of dyes are used for different kinds of fabrics depending on the nature and type of the fabric to be dyed, to impart color, modify the fabric to make them more attractive and astonishing. In short, the introduction of synthetic dyes resulted in the demise of a massive natural dye industry. So, it's necessary to classify the different types of dyes with the increase in the number of types and varying dyeing properties so that this would be a best way to understand the different types of dyes, their applicability, fastness and other properties. In this article, a source for the beginners is provided to understand different kind of the textile fabrics and their importance as well as their drawbacks, dyes and their various types, their interaction with the corresponding fabric, their color strength and color fastness properties.