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Nouvelle Approche De La Cinetique Fermentaire De Saccharomyces Cerevisiae Et De La Conduite Dun Procede Semi Continu
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Book Synopsis Nouvelle approche de la cinétique fermentaire de Saccharomyces cerevisiae et de la conduite d'un procédé semi-continu by : Rhida Mosrati
Download or read book Nouvelle approche de la cinétique fermentaire de Saccharomyces cerevisiae et de la conduite d'un procédé semi-continu written by Rhida Mosrati and published by . This book was released on 1993 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Saccharomyces cerevisiae est une levure largement utilisée pour la panification et la fermentation alcoolique. Elle suscite, aujourd'hui, de nouveaux champs d'application tels que la production de molécules à haute valeur ajoutée. Dans le but d'une meilleure connaissance et d'une mise en œuvre optimale, une souche commerciale de cette levure a été étudiée. Dans un premier temps, une méthode de traitement et de validation de données brutes a été mise au point. Ensuite, la cinétique d'entrainement de l'acétaldéhyde, molécule volatile produite au cours de la croissance de la levure, a été quantifiée et modélisée. Grâce à ses deux outils, l'étude des cultures discontinues sur glucose et sur éthanol a été abordée par des bilans de matière et d'énergie cellulaire. Ceci a permis de quantifier, avec précision, l'activité des voies métaboliques impliquées ainsi que les phénomènes de maintenance. Des lors, une synthèse et une étude de l'aspect régulation du métabolisme ont pu être réalisées. L’ensemble des résultats a servi à concevoir un modèle mathématique basé sur la connaissance du métabolisme, de l'énergétique cellulaire et de la physiologie de la levure. La dernière partie du travail a été consacrée à la mise au point, par simulation, de trois techniques de commande d'un réacteur semi-continu en vue de la production de biomasse (commande PID, commande prédictive généralisée et commande floue)
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Download or read book Sea Plants written by and published by Elsevier. This book was released on 2014-05-21 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Botanical Research publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences. The series features several reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology. This thematic volume, number 71, features reviews on sea plants. Its chapters cover topics such as the role of algae in sustainability; the status of kelp exploitation and marine agronomy; potential applications for enzymatic recovery of metabolites from seaweeds; and many more. - Publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences - Features a wide range of reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology, and ecology - Volume features reviews on sea plants
Book Synopsis Current Developments in Solid-state Fermentation by : Ashok Pandey
Download or read book Current Developments in Solid-state Fermentation written by Ashok Pandey and published by Springer Science & Business Media. This book was released on 2008-09-16 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the period of last two decades, there has been significant resurgence in solid-state fermentation due to the numerous benefits it offers, especially in the engineering and environmental aspects. SSF has shown much promise in the development of several bioprocesses and products. This resurgence gained further momentum during the last 5-6 years with the developments in fundamental and applied aspects. A good deal of information has been generated in published literature and patented information. Several commercial ventures have come up based on SSF in different parts of the world. The contents are organized into four parts: Part 1 deals with the General and Fundamentals aspects of SSF; Part 2 deals with the production of bulk chemicals and products such as enzymes, organic acids, spores and mushrooms in SSF; Part 3 is on the use of SSF for specialty chemicals such as gibberellic acid, antibiotics and other pharmaceutically valuable secondary metabolites, pigments, and aroma compounds; Part 4 deals with the use of SSF miscellaneous application such as SSF for food and feed applications, agro-industrial residues as substrates in SSF and the production of silage and vermicompost.
Download or read book Enzyme Technology written by Ashok Pandey and published by Springer Science & Business Media. This book was released on 2006-04-28 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description
Book Synopsis Fermentation Processes by : Angela Jozala
Download or read book Fermentation Processes written by Angela Jozala and published by BoD – Books on Demand. This book was released on 2017-02-08 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fermentation is a theme widely useful for food, feed and biofuel production. Indeed each of these areas, food industry, animal nutrition and energy production, has considerable presence in the global market. Fermentation process also has relevant applications on medical and pharmaceutical areas, such as antibiotics production. The present book, Fermentation Processes, reflects that wide value of fermentation in related areas. It holds a total of 14 chapters over diverse areas of fermentation research.
Book Synopsis Solid-state Fermentation by : Ashok Pandey
Download or read book Solid-state Fermentation written by Ashok Pandey and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at Specialist Group Meeting & Symposium on Solid State Fermentation, held at Trivandrum, during March 23-24, 1994, organized by the Regional Research Laboratory, Trivandrum.
Book Synopsis Membrane Proteins Production for Structural Analysis by : Isabelle Mus-Veteau
Download or read book Membrane Proteins Production for Structural Analysis written by Isabelle Mus-Veteau and published by Springer. This book was released on 2016-09-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book updates the latest development in production, stabilization and structural analysis techniques of membrane proteins. This field has made significant advances since the elucidation of the first 3-D structure of a recombinant G Protein Coupled Receptor (GPCR), rhodopsin, with the structure of several more GPCRs having been solved in the past five years. In fact, the 2012 Nobel Prize in Chemistry was awarded for groundbreaking discoveries on the inner workings of GPCRs. This book is essential reading for all researchers, biochemists and crystallographers working with membrane proteins, who are interested by the structural characterization of their favorite protein and who wish to follow the expression, migration, modifications and recycling of a membrane protein.
Book Synopsis Wine and Tourism by : Marta Peris-Ortiz
Download or read book Wine and Tourism written by Marta Peris-Ortiz and published by Springer. This book was released on 2015-12-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to show how wine tourism can be used as a model for sustainable economic development, driving economic growth and social development in some locations. It will explore the interaction between tourism and viticulture in wine tourism destinations, while also explaining some of the repercussions of these activities. This book covers various topics including regional development, environmental management, sustainable viticulture, quality management in wineries and wine tourism routes among others. Wine tourism, which combines two important yet distinct economic activities (i.e., tourism and viticulture), has recently emerged as a new tourism product driven by tourists’ search for new experiences and wineries’ need to diversify their businesses and seek new revenue streams to boost sales. This new form of tourism, which typically takes place in rural areas and which combines wine production with tourist activities, is becoming important for such regions by providing a complementary income source. It provides a model for sustainable economic development for these regions, which for various reasons may otherwise struggle to develop. Featuring cases and business implications from various locations, this book provides an important source of knowledge—both theoretical and practical—suitable to academics, scholars, researchers, and practitioners in the tourism sector and the wine industry.
Book Synopsis Cinétique, modélisation de la croissance de saccharomyces cerevisiae by : Philippe Dantigny
Download or read book Cinétique, modélisation de la croissance de saccharomyces cerevisiae written by Philippe Dantigny and published by . This book was released on 1989 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'étude de la croissance de saccharomyces cerevisiae et la mise au point d'une conduite automatique, simple et performante, d'un procédé semi-continu pour la production de biomasse constituent les objectifs de ces travail. Des expériences cinétiques menées en réacteur discontinu et semi-continu vont permettre: 1) de déterminer les paramètres d'un modèle physiologique de la croissance; 2) d'apporter des éléments nouveaux sur les mécanismes de transition du métabolisme par l'analyse précise de molécules clés, pyruvate, acétate, acétaldéhyde et éthanol et sur l'inhibition. Le modèle physiologique est utilisé en simulation pour étudier et régler: 1) un estimateur monovariable de la concentration en biomasse et du taux spécifique de croissance pour les fermentations discontinues et semi-continues; 2) des commandes non-linéaires de type L/A. Ces commandes n'utilisent pas la différence entre consigne et mesure comme les régulateurs classiques, mais le rapport consigne/mesure. La variable de consigne est ici la concentration de biomasse; il est possible de faire intervenir la mesure de l'éthanol et celle du quotient respiratoire dans le réglage de la commande. Le couplage de ces commandes L/A peut intervenir à n'importe quel moment d'une fermentation, les résultats expérimentaux montrent qu'elles assurent une bonne réponse dynamique à différentes perturbations et qu'elles permettent d'obtenir de très fortes productivités
Book Synopsis Integration of Geographic Information Systems and Remote Sensing by : Jeffrey L. Star
Download or read book Integration of Geographic Information Systems and Remote Sensing written by Jeffrey L. Star and published by Cambridge University Press. This book was released on 1997-01-28 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of remote sensing and geographic information systems to resource management and environmental research.
Book Synopsis Cinétique et conduite de fermentations de levure by : Mohamed Ghoul
Download or read book Cinétique et conduite de fermentations de levure written by Mohamed Ghoul and published by . This book was released on 1983 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: SACCHAROMYCES CEREVISIAE ET CANDIDA UTILIS. ETUDE SUR GLUCOSE ET ETHANOL. CULTURE DE C-11 SUR HYDROLYSAT DE FARINE DE MANIOC
Book Synopsis People and Environment in Africa by : Tony Binns
Download or read book People and Environment in Africa written by Tony Binns and published by . This book was released on 1995-04-12 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of case studies revealing how the indigenous people of Africa are coping with the local environment by using a number of methods such as soil conservation, diversification, pastoral systems, irrigation projects and innovative crop-growing strategies.
Book Synopsis Biocontrol Agents by : Mahfouz M M Abd-Elgawad
Download or read book Biocontrol Agents written by Mahfouz M M Abd-Elgawad and published by CABI. This book was released on 2017-07-12 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes entomopathogenic and slug parasitic nematodes as potential biocontrol agents in crop insect and slug pest management. Addressing research on these two nematodes from tropical, subtropical and temperate countries, it covers the new techniques and major developments regarding mass production, formulation, application, commercialization and safety measures. Plans for future strategies to make these beneficial nematodes cost-effective and expand their use by including them in integrated pest management programmes in different agro-ecosystems are also discussed. Biocontrol Agents: Entomopathogenic and Slug Parasitic Nematodes provides a comprehensive review of the topic and is an essential resource for researchers, industry practitioners and advanced students in the fields of biological control and integrated pest management.
Book Synopsis Forest Fire Research by : Universidade de Coimbra
Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modélisation, simulation dynamique et optimisation d'un procédé de fermentation éthanolique basé sur un bioréacteur à membrane by : Stylianos Papastratos
Download or read book Modélisation, simulation dynamique et optimisation d'un procédé de fermentation éthanolique basé sur un bioréacteur à membrane written by Stylianos Papastratos and published by . This book was released on 1996 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de cette thèse est de démontrer aux biologistes que la simulation des procédés peut être un moyen pour l'aide à la conception et à la conduite des procédés de fermentation. La thèse explique et montre les étapes nécessaires et la façon dont ces étapes doivent être implantées pour aboutir à des solutions réalistes concernant un procédé de fermentation éthanolique basé sur la levure saccharomyces Cerevisiae. La modélisation couplée à une validation expérimentale rigoureuse constitue l'étape fondamentale pour toute étude d'optimisation quantitative. Une bonne formulation mathématique couplée à une maitrise au niveau physique du problème et à l'utilisation de méthodes d'analyse numériques performantes disponibles sous une forme intelligente et conviviale peut donner des solutions à des problèmes réels industriels. Le domaine de validité de plusieurs modèles cinétiques a été examiné. Nous proposons un nouveau modèle cinétique basé sur le modèle de Sonnleitner qui inclut de nouvelles variables différentielles, pour tenir compte du passage progressif entre les différentes voies métaboliques. Une méthodologie concernant l'optimisation statique d'un procédé continu mono-étage et bi-étage avec recyclage de cellules a été élaborée. Nous proposons aussi un algorithme pour la réalisation d'une optimisation dynamique concernant une fermentation discontinue
Book Synopsis COMMANDE NON LINEAIRE D'UN REACTEUR BIOLOGIQUE SEMICONTINU DE PRODUCTION DE LEVURES by : Sérgio Lucena
Download or read book COMMANDE NON LINEAIRE D'UN REACTEUR BIOLOGIQUE SEMICONTINU DE PRODUCTION DE LEVURES written by Sérgio Lucena and published by . This book was released on 1996 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA PRINCIPALE MOTIVATION DE CE TRAVAIL EST L'ETUDE DE L'APPLICATION DE LA COMMANDE NON LINEAIRE GEOMETRIQUE A UN REACTEUR BIOLOGIQUE POUR LA PRODUCTION DE SACCHAROMYCES CEREVISIAE. CE PROCEDE CONDUIT EN MODE SEMI-CONTINU POSSEDE UN COMPORTEMENT EXTREMEMENT NON LINEAIRE. POUR L'APPLICATION DE LA COMMANDE, UN MODELE MATHEMATIQUE DU PROCEDE EST NECESSAIRE ; DANS CE BUT, ON UTILISE UN MODELE PHYSIOLOGIQUE POUR LA CROISSANCE DE LA LEVURE. LE MODELE DECRIT LES TROIS PHASES DE PRODUCTION DE LA BIOMASSE QUI SONT: LA FERMENTATION DU GLUCOSE, LA RESPIRATION DE L'ETHANOL ET LA RESPIRATION DU GLUCOSE. LE PROCEDE FONCTIONNE D'ABORD EN MODE DISCONTINU, EN BOUCLE OUVERTE, PUIS EN MODE SEMICONTINU, EN BOUCLE FERMEE. LES DEUX TECHNIQUES DE COMMANDE NON LINEAIRE GEOMETRIQUE, LA LINEARISATION EXACTE ENTREE/SORTIE ET LA LINEARISATION EXACTE ENTREE/ETAT, ONT ETE APPLIQUEES A LA POURSUITE D'UNE TRAJECTOIRE DE REFERENCE. LA SORTIE CONSIDEREE EST LA CONCENTRATION EN GLUCOSE DANS LE REACTEUR. CES TECHNIQUES DE COMMANDE SONT BASEES SUR LA CONNAISSANCE DE TOUTES LES VARIABLES D'ETAT DU PROCEDE. DANS NOTRE CAS, TOUS LES ETATS NE SONT PAS DISPONIBLES COMME MESURES ET L'UTILISATION D'UN OBSERVATEUR D'ETAT A ETE INDISPENSABLE. LE FILTRE DE KALMAN ETENDU (EKF) A ETE UTILISE DANS SA VERSION CONTINUE/DISCRETE. POUR L'APPLICATION DE L'EKF, TROIS STRATEGIES ONT ETE DEVELOPPEES POUR TENIR COMPTE DE DIFFERENTES PERIODES D'ECHANTILLONNAGE ET DE RETARDS DES VARIABLES DE MESURES DISPONIBLES. LES RESULTATS ONT ETE OBTENUS PAR SIMULATION ET PAR EXPERIMENTATION. L'IMPLANTATION SUR UN BIOREACTEUR PILOTE A ETE EFFECTUEE ET LA TECHNIQUE DE COMMANDE NON LINEAIRE A MONTRE EN GENERAL D'EXCELLENTS RESULTATS
