Challenges in wet state preservation of paints : a microbial perspective / Amit Bhattacharya in PAINTINDIA, Vol. LXIV, N° 2 (02/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 2 (02/2014) . - p. 62-66 Titre : Challenges in wet state preservation of paints : a microbial perspective Type de document : texte imprimé Auteurs : Amit Bhattacharya, Auteur Année de publication : 2014 Article en page(s) : p. 62-66 Langues : Anglais (eng) Catégories : Algues unicellulaires Antimicrobiens Bactéries Champignons microscopiques Microorganismes Revêtements -- Détérioration:Peinture -- Détérioration Index. décimale : 667.6 Peintures Résumé : Microorganisms are ubiquitous in the environment as they are present everywhere where there is water. Their highly versatile nutritional requirements for their growth can be met by a range of water based coatings that enables them to multiply even in adverse conditions. There are 3 different kinds of microbes that spoil paint in shelf or after application as a dry film. Majorly bacteria, fungi and yeast are responsible for spoilage of paint in can white it is fungi and algae that deface the wall after paint is applied on it. Note de contenu : - Unseen microbial world operating in paint - Mechanisms of paint spoilage by microbes - Effect of solvent shift on microbiology of paints - Factors causing spoilage of paint in wet stage - Controllable factors of paints spoilage - Uncontrollable/difficult to control factors responsible for paint spoilage En ligne : https://drive.google.com/file/d/1w_MfMz-f0KQsK5qTD239DBe_Ntw-U2x_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21337 [article]

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Isolation and identification of sulphate reducing bacteria from spoilt paint / Amit Bhattacharya in PAINTINDIA, Vol. LXIV, N° 4 (04/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 4 (04/2014) . - p. 64-68 Titre : Isolation and identification of sulphate reducing bacteria from spoilt paint Type de document : texte imprimé Auteurs : Amit Bhattacharya, Auteur ; Poonam Bukam, Auteur Année de publication : 2014 Article en page(s) : p. 64-68 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bactéries -- Identification Revêtements -- Détérioration:Peinture -- Détérioration Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.9 Revêtements et enduits Résumé : Water Based paints are susceptible to biodegradation during their manufacture which gives rise to In- can spoilage problem (Ravikumar et al., 2012). Majorly bacteria, fungi and yeast are responsible for in-can spoilage. Among bacteria members of Enterobacteraceae, and Pseudomonadaceae family are widely encountered during isolation of bacteria from spoilt paint. Both facultative anaerobic bacteria like Escherichia, Proteus and Klebsiella as wel I as anaerobic bacteria like sulphate reducing bacteria (SRBs) can thrive in paint and may give rise to in-can spoilage (Paulus, 2005). Due to their highly versatile nutritional requirements for growth, water based paints contain sufficient nutrients to enable microbes to multiply even in adverse conditions. In this study a brief description of the isolation an SRB strain from a spoilt paint sample and its identification using the Biolog microbial identification system is presented. The strain, CACI-1, was identified as a Desulfonomonas spp. The present article can serve as an attempt to develop alternate methods to reveal the presence of sulphate reducing bacteria in paint samples. Note de contenu : - Sample - Enumeration, isolation and purification of SRB - Detection of H2S gas in paint samples En ligne : https://drive.google.com/file/d/1IAZ-BxlRH03Vf6EZ-_tspmxzsOvpnchi/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21347 [article]

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A road map to hygiene improvement indian paint industry / Amit Bhattacharya in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 5 (05/2014) . - p. 69-70 Titre : A road map to hygiene improvement indian paint industry Type de document : texte imprimé Auteurs : Amit Bhattacharya, Auteur ; Chirag B. Waghela, Auteur Année de publication : 2014 Article en page(s) : p. 69-70 Langues : Anglais (eng) Catégories : Antimicrobiens Hygiène du travail Index. décimale : 613.62 Hygiène industrielle Résumé : For regular hygiene of plant, there should be hygiene manual for each processing unit or company for particular type of product. The hygiene manual should include checking, critical control, pro-active and post-active measures of all the areas from where microbial contamination may occur. By following best hygiene practices, chances for microbial contamination of the final product will be minimized at a greater extent. Note de contenu : - Areas of high susceptibility in manufacturing plants - Hygiene improvement of source water, recycled water and recycled product - Hygiene improvement in packaging area En ligne : https://drive.google.com/file/d/1j-Td3HRS8DtQT_5ROJLwlGvjRVCKoLa1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21763 [article]

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The overlooked threat in paint and its raw material / Amit Bhattacharya in PAINTINDIA, Vol. LXVI, N° 7 (07/2016)  

[article]  inPAINTINDIA > Vol. LXVI, N° 7 (07/2016) . - p. 51-53 Titre : The overlooked threat in paint and its raw material Type de document : texte imprimé Auteurs : Amit Bhattacharya, Auteur ; Kishor Kumar Joshi, Auteur Année de publication : 2016 Article en page(s) : p. 51-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contamination microbienne Matières premières Revêtements (produits chimiques):Peinture (produits chimiques) Tests microbiologiques Index. décimale : 667.6 Peintures Résumé : Limitations of correct microbiological techniques in many industries including paint industries had led to the underestimation of the potential threat of microbiological origin. It leads to difficult to explain kind of situation in spoilage of end product like paint which although substantiated with presence of biocides. Although it has been a well established fact that in many natural environments approximately 1% of microbes can be readily cultivated in lab still standard industrial practices rely upon conventional approach for microbial enumeration. Conventional approach which utilizes nutrient rich media for cultivation of bacteria can only represent very small portion of the actual bacterial population of tested raw material. In this study it has been observed that bacterial population can be increased with dilution of the nutrients in conventional nutrient media. Note de contenu : - Paint sample - Paint raw materials - Media - Culture condition and CFU count - Table : Number of bacteria recovered on different media and their dilution from various raw material - Fig. Bar chart showing effect of dilution of media on CFU count in various raw material used in paint and old paint samples En ligne : https://drive.google.com/file/d/1xYAVBQ3lINDPcDkCVC_cUh3bi5XbfMI7/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26855 [article]

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Trends towards green biocides : a paradigm shift / Amit Bhattacharya in PAINTINDIA, Vol. LXIV, N° 3 (03/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 3 (03/2014) . - p. 82-85 Titre : Trends towards green biocides : a paradigm shift Type de document : texte imprimé Auteurs : Amit Bhattacharya, Auteur Année de publication : 2014 Article en page(s) : p. 82-85 Langues : Anglais (eng) Catégories : Antimicrobiens Chimie écologique Index. décimale : 667.9 Revêtements et enduits Résumé : ONE step forward towards more green chemistries is the global need of the day. The demand for more eco-friendly chemicals is felt in more or less all types of industries including paint industry. Biocides that are made, used or disposed of in a way that significantly reduces the harm they would otherwise cause to the environment, could be considered an eco-friendly biocide. Biocides which are highlighted as being environmentally friendly should, alter completing its job, break down to non-toxic constituents with no potential to bio-accumulate. Green Chemistry is the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances. Green Chemistry is more environmentally benign, linking the design of chemical products and processes with their impacts on human health and the environnent. Thus green chemistry concepts play a key rote for sustainabi I ity by positively impacting the environnent as well as human health and safety. Note de contenu : - History - First generation biocides - Current trends in biocide industry - Attributes of eco-friendly or green biocides - Disadvantages of eco-friendly biocides En ligne : https://drive.google.com/file/d/1-UVWzC838mD0BF-neg09AtbiVXmipqU0/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21343 [article]

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