Böcker av Ranjan Singh

La gestione dei rifiuti è un problema globale con cui tutto il mondo si sta confrontando. La composizione e le caratteristiche degli inquinanti presenti negli effluenti sono sconosciute, il che costituisce la preoccupazione maggiore. Il biorisanamento è il metodo che utilizza l'elevata e diversificata attività metabolica dei microrganismi per scomporre i contaminanti nelle acque reflue industriali, in particolare negli effluenti delle distillerie. La loro natura facilmente disponibile e il prezzo accessibile li rendono l'opzione preferita. Il biorisanamento è il processo di utilizzo di batteri con una forte attività metabolica per degradare i contaminanti presenti negli effluenti industriali, in particolare quelli delle distillerie. I microrganismi, da soli o in combinazione con altri microrganismi, creano un ambiente favorevole non solo alla degradazione degli agenti tossici, ma anche alla produzione di alcuni sottoprodotti utili. Questo lavoro si concentra sul biorisanamento degli effluenti di distilleria utilizzando ceppi batterici. Il libro è di interesse per studenti, ricercatori, insegnanti o qualsiasi persona interessata all'argomento.

Die Abfallbewirtschaftung ist ein globales Problem, mit dem sich der gesamte Globus derzeit auseinandersetzt. Die Zusammensetzung und die Eigenschaften der Schadstoffe in den Abwässern sind unbekannt, was die größte Sorge darstellt. Bei der Bioremediation wird die hohe und vielseitige Stoffwechselaktivität von Mikroorganismen genutzt, um Schadstoffe in Industrieabwässern, insbesondere in Brennereiabwässern, abzubauen. Ihre leichte Verfügbarkeit und ihr erschwinglicher Preis machen sie zur bevorzugten Option. Bei der Bioremediation werden Bakterien mit starker Stoffwechselaktivität eingesetzt, um Schadstoffe in Industrieabwässern, insbesondere in Abwässern von Brennereien, abzubauen. Mikroorganismen, allein oder in Verbindung mit anderen Mikroorganismen, schaffen ein Umfeld, das nicht nur den Abbau von Schadstoffen, sondern auch die Produktion einiger nützlicher Nebenprodukte begünstigt. Diese Arbeit konzentriert sich auf die Bioremediation von Brennereiabwässern mit Hilfe von Bakterienstämmen. Das Buch ist für Studenten, Forscher, Lehrer und alle am Thema interessierten Personen von Interesse.

A gestão dos resíduos é um problema global com o qual todo o mundo se debate atualmente. A composição e as características dos poluentes nos efluentes são desconhecidas, o que constitui a maior preocupação. A biorremediação é o método que utiliza a elevada e diversificada atividade metabólica dos microrganismos para decompor os contaminantes presentes nas águas residuais industriais, em particular nos efluentes das destilarias. A sua natureza facilmente disponível e o seu preço acessível fazem deles a opção preferida. A biorremediação é o processo de utilização de bactérias com forte atividade metabólica para decompor os contaminantes presentes nos efluentes industriais, nomeadamente nos efluentes das destilarias. Os microrganismos, isoladamente ou em conjunto com outros microrganismos, criam um ambiente propício não só à decomposição dos tóxicos mas também à produção de alguns subprodutos úteis. Este trabalho centra-se na bioremediação de efluentes de destilarias utilizando estirpes de bactérias. O livro é de interesse para estudantes, investigadores, professores ou qualquer pessoa interessada no tema.

Aureobasidium pullulans, popularly known as black yeast, is one of the most widespread saprophyte fungus associated with wide a range of terrestrial and aquatic habitats, in temperate and tropical environment. It is a polymorphic fungus able to grow in single yeast-like cells or as septate, polykaryotic hyphae showing synchronous conditions, with budding cells. This fungus has been exploited potentially for commercial production of various enzymes (amylase, xylanase, and pectinase etc.), single cell protein, alkaloids and a polysaccharide namely pullulan. In the light of the above facts, this review article has emphasized on the orientation, morphology, biochemical characteristics, habitats and its economic potentials with special reference to pullulan.

Toxins can be defined by many ways on basis of origin, chemical nature and site of actions. Any microbial product, when present at low concentration in cells or tissues of a higher organism, can cause injury by interfering with the structural and functional integrity of those cells or tissues. Toxins are produced by bacteria, fungi, algae and various other micro-organisms. This review will put some light on various types of microbial toxins their structure and function and how they affect the human body. The book is of benefit to all the students of microbiology, biochemistry medical science, biotechnology and to all individuals interested in the subject.

In recent years, a wide range of microbial metabolites have been used for industrial production world wide for human welfare. Pullulan is one of the important microbial metabolite produced by Aureobasidium pullulans , a polymorphic fungus, all over the world. Pullulan is a linear homopolymer composed of maltotriose subunits interconnected with glycosidic linkages. This polymer is being exploited in food, cosmetic, medical and pharmaceutical industries including manufacture of biodegradable plastics. This work aims at improvement of Aureobasidium pullulans strain through mutation as well as immobilization for increased production of pullulan in fermentation system. The book will shed some light on current industrial aspects of microbiology especially fermentation technology and will be of great use to students as well as all those interested in the subject.

Multidimensional world-wide developments in most areas have resulted into pollution of the environment. Municipal wastes, industrial effluents and heavy metal discharge have contaminated our aquatic ecosystem, as well as, the fish population and associated bacterial species in such environment. In the present study a fresh water fish, Channa punctatus, was exposed to Lead and further an opportunistic bacteria namely Aeromonas was isolated from various fish organs. This bacterium was further studied at various biochemical parameters to understand its characteristic features. This study will help shed some light on our environment and the pollution affecting it and will be of great help to all individuals interested in knowing our environment and especially to all the students of microbiology.