Antimicrobial activity of some natural dyes
TL;DR: The textile material impregnated with these natural dyes, however, showed less antimicrobial activity, as uptake of these dyes in textile material is below MIC.
About: This article is published in Dyes and Pigments.The article was published on 2005-08-01. It has received 329 citations till now. The article focuses on the topics: Quercus infectoria & Antimicrobial.
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TL;DR: In this article, the requirements for antimicrobial finishing, qualitative and quantitative evaluations of antimicrobial efficacy, the application methods of antimacterial agents and some of the most recent developments in antimicrobial treatments of textiles using various active agents such as silver, quaternary ammonium salts, polyhexamethylene biguanide, triclosan, chitosan, dyes and regenerable N-halamine compounds and peroxyacids.
Abstract: The growth of microbes on textiles during use and storage negatively affects the wearer as well as the textile itself. The detrimental effects can be controlled by durable antimicrobial finishing of the textile using broad-spectrum biocides or by incorporating the biocide into synthetic fibers during extrusion. Consumers' attitude towards hygiene and active lifestyle has created a rapidly increasing market for antimicrobial textiles, which in turn has stimulated intensive research and development. This article reviews the requirements for antimicrobial finishing, qualitative and quantitative evaluations of antimicrobial efficacy, the application methods of antimicrobial agents and some of the most recent developments in antimicrobial treatments of textiles using various active agents such as silver, quaternary ammonium salts, polyhexamethylene biguanide, triclosan, chitosan, dyes and regenerable N-halamine compounds and peroxyacids. Examples of commercial antimicrobial products are presented to illustrate...
967 citations
TL;DR: In this article, a review encompasses a summary of research performed in last 15 years (1998-2013) in different arenas of applications of natural dyes, with specific reference to technological development in natural textile dyeing and use of natural Dyes in functional finishing of textiles, food coloration and dye-sensitized solar cells.
681 citations
Journal Article•
TL;DR: In this paper, a discussion of waste production from textile processes, such as desizing, mercerizing, bleaching, dyeing, finishing, and printing, is presented.
Abstract: This review discusses cotton textile processing and methods of treating effluent in the textile industry. Several countries, including India, have introduced strict ecological standards for textile industries. With more stringent controls expected in the future, it is essential that control measures be implemented to minimize effluent problems. Industrial textile processing comprises pretreatment, dyeing, printing, and finishing operations. These production processes not only consume large amounts of energy and water, but they also produce substantial waste products. This manuscript combines a discussion of waste production from textile processes, such as desizing, mercerizing, bleaching, dyeing, finishing, and printing, with a discussion of advanced methods of effluent treatment, such as electro-oxidation, bio-treatment, photochemical, and membrane processes.
309 citations
TL;DR: In this paper, the most important textile applications of environmental friendly plant-based products such as fibres, polysaccharides, dyes and pigments, polyphenols, oils and other biologically active compounds are highlighted.
260 citations
TL;DR: In this article, a study was conducted to investigate the dyeing, fastness, and antimicrobial properties of woolen yarns using gallnut extract as a natural dye, and compared results of color fastness (fastness to light, wash, and rub) and colorimetric properties (CIELab and color strength (K/S) values) of dyed yarns were studied to quantify the effect of mordants.
146 citations
Cites background from "Antimicrobial activity of some natu..."
...Hence, there has been growing demand to develop antimicrobial finishing for textile materials, which offer improved protection to users against microbes without destroying the desirable characteristics [1,2]....
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...Enhancement in microbial growth is directly proportional to turbidity and optical density, which are directly related to the number of microbial cells in media [2,15,17,33]....
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Book•
19 Mar 1998
TL;DR: Encyclopedia of Chemical Technology The Third Edition of the Encycled encyclopedia of chemical technology as mentioned in this paper is built on the solid foundation of the previous editions of the encyclopedia, which has been updated and updated and many new subjects have been added to reflect changes in chemical technology through the 1970s.
Abstract: Encyclopedia of Chemical Technology The Third Edition of the Encyclopedia of Chemical Technology is built on the solid foundation of the previous editions All of the articles have been rewritten and updated and many new subjects have been added to reflect changes in chemical technology through the 1970s The new edition, however, will be familiar to users of the earlier editions comprehensive, authoritative, accessible, lucid The Encyclopedia remains an indispensable information source for all producers and users of chemical products and materials In the Third Edition, emphasis is given to major present-day topics of concern to all chemists, scientists, and engineers--energy, health, safety, toxicology, and new materials New subjects have been added, especially those related to polymer and plastics technology, fuels and energy, inorganic and solid-state chemistry, composite materials, coating, fermentation and enzymes, pharmaceuticals, surfactant technology, fibers and textiles New features include the use of SI units as well as English units, Chemical Abstracts Service's Registry Numbers, and complete indexing based on automated retrieval from a machine-readable composition system Once again this classic serves as an unrivaled library of information for the chemical and allied industries Some comments about Kirk-Othmer-- The First Edition "No reference library worthy of the name will be without this series It is simply a must for the chemist and chemical engineer" --Chemical and Engineering News The Second Edition "A necessity for any technical library" --Choice
3,513 citations
TL;DR: The results indicate that these natural products can be effective potential candidates for the development of new strategies to treat MRSA infections.
295 citations
"Antimicrobial activity of some natu..." refers background in this paper
...Most of the studies conducted earlier have reported the activity of plant materials against Candida rugosa, Staphylococcus aureus and other drug resistant bacteria [9]....
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TL;DR: Leaves of Punica granatum contain the new gallotannins, 1,2,4-tri-O-galloyl-β-glucopyranose and 1,3, 4-tri -O-Galloyl -β -glucopeanose together with the hitherto unknown ellagitannins as discussed by the authors.
98 citations
"Antimicrobial activity of some natu..." refers background in this paper
...Many of the plants used for dye extraction are classified as medicinal, and some of these have recently been shown to possess remarkable antimicrobial activity [5]....
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TL;DR: In this paper, the stem bark of the South American tree Tubebuiu avellanedue Llorentz ex GRISEB, Bignoniaceae (syn. T. uvellunedue LORENTZ exGRISEB. ex DC., T. heptuphylla VELL. ex.
Abstract: ~The stem bark of the South-American tree Tubebuiu avellanedue LORENTZ ex GRISEB., Bignoniaceae (syn. T. impetiginosu MART. ex DC., T. heptuphylla VELL. TOLEDO, and T. I$ MART. ex. SCHUM. [l]), known in folk medicine as Pau d’Arco, IpC Roxo, Taheebo, and Lapacho, is used in North and South America for many years as an anticancer, antifungal, antibacterial, and antiinflammatory drug [2] [3]. Lapachol and dehydro-a -lapachone, the major naphthoquinones of the heartwood of Tubebuiu uvellunedue LORENTZ ex GRISEB., were found to be active against different types of tumors [47]. In viuo antitumor effects were observed using p. 0. administration of 20-30 mg/kg lapachol [8], and de Suntunu et ul. [9] demonstrated in vivo antineoplastic effects on Yoshidu’s sarcoma and Walker 256 carcinosarcoma for the lipophilic extract of the inner bark of T. uvellanedue LORENTZ ex GRISEB. These pharmacological activities, and recent results from our laboratory (Munich) concerning the immunostimulating effects of various naphthoquinones when applied in minute doses [lo] prompted us to initiate a new, thorough investigation of the lipophilic extract of the inner bark of T. uvellunedue LORENTZ ex GRISEB. Results and Discussion. - Column chromatography (CC) of the CHCl, extract of T. uvellunedue LORENTZ ex GRISEB. stem bark on silica gel, using CHC1, as eluent resulted in five fractions (Fr. I-V) which afforded twenty compounds by further CC, prep. HPLC, and prep. TLC (see Scheme). In the present publication, we describe the structure elucidation of the new compounds 8, 12, 13, 15, 16, and 19 which were obtained from Fr. I, IZ, and IV. The other compounds and their biological activities will be described in a forthcoming paper.
81 citations
TL;DR: β-Lapachone is a naturally occurring compound that can be isolated from a number of tropical trees and shown to be a potent inhibitor of reverse transcriptase activity from both avian myeloblastosis virus and Rauscher murine leukaemia virus, and affords a novel means of studying such interrelationships and of further characterizing enzymes.
Abstract: beta-Lapachone is a naturally occuring compound that can be isolated from a number of tropical trees. It is shown to be a potent inhibitor of reverse transcriptase activity from both avian myeloblastosis virus and Rauscher murine leukaemia virus. In addition, it affects eukaryotic DNA-dependent DNA polymerase-alpha activity: 50% inhibition is reached in 60-min incubation time by about 8 micron beta-lapachone. Enzyme activity is inhibited irrespective of the purity of the enzyme used or of the amount or type of template/primer or substrate present. The inhibitory effect of the drug is only observed in the presence of dithiothreitol. The primary site of action of beta-lapachone appears to be the enzyme protein, as is also borne out by the specificity of its action. Eukaryotic DNA-dependent DNA polymerase-beta, prokaryotic DNA-dependent DNA polymerase I, several other nucleic acid polymerases and some completely unrelated enzymes are not affected. Reverse transcriptase and DNA-dependent DNA polymerase-alpha may be in someway related in possessing similarly exposed '--SH structures' in their active sites. beta-lapachone thus affords a novel means of studying such interrelationships and of further characterizing enzymes.
62 citations