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Author: COLETTE.. HOUSSAIS
Publisher:
ISBN:
Category :
Languages : fr
Pages : 172
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Author: COLETTE.. HOUSSAIS
Publisher:
ISBN:
Category :
Languages : fr
Pages : 172
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Author: SAID.. KSIRI
Publisher:
ISBN:
Category :
Languages : fr
Pages : 156
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QUELQUES FIBRES ALIMENTAIRES DIFFERENTES PAR LEUR ORIGINE ET LEUR NATURE INSOLUBLE (FIBRES DE POIS ET D'AVOINE ET CELLULOSE PURE) OU SOLUBLE (INULINE ET GOMME ARABIQUE) ONT FAIT L'OBJET AU COURS DE CETTE THESE DE TRAVAUX VISANT A EN DETERMINER LES PROPRIETES PHYSICO-CHIMIQUES, LA FONCTIONNALITE DANS DES APPLICATIONS DE TYPE PRODUIT DE CUISSON ET LA VALEUR NUTRITIONNELLE NOTAMMENT EN CE QUI CONCERNE LE METABOLISME LIPIDIQUE, LA CHOLESTEROLEMIE ET L'INSULINEMIE. L'ETUDE PHYSICO-CHIMIQUE NOUS A PERMIS DE CARACTERISER LES FIBRES ETUDIEES PAR LEUR COMPOSITION, LEUR CAPACITE DE RETENTION D'EAU ET D'HUILE, LEUR POUVOIR D'ECHANGE D'IONS AINSI QUE L'ADSORPTION DE VAPEUR D'EAU NOTAMMENT LA COUCHE MONOMOLECULAIRE LIEE PAR LIAISONS HYDROGENE AUX SITES POLAIRES DES FIBRES. POUR COMPLETER ET EXPLIQUER LES DIFFERENCES DE PROPRIETES PHYSICO-CHIMIQUES, LA STRUCTURE DES FIBRES A ETE DETERMINEE PAR RAYON X ET PAR INFRAROUGE A TRANSFORMEE DE FOURIER. POUR EVALUER LA FONCTIONNALITE DES FIBRES ALIMENTAIRES ETUDIEES, NOUS LES AVONS INCORPOREES DANS DEUX PRODUITS DE CUISSON: LE PAIN DE MIE ET LA GENOISE SOIT EN REMPLACEMENT DE LA FARINE SOIT COMME PRODUIT DE MASSE LORS DU REMPLACEMEMENT DU SUCRE PAR DE L'ASPARTAME. LES NIVEAUX ACCEPTABLES PAR UN JURY D'EVALUATION SENSORIELLE POUR LA SUBSTITUTION DE LA FARINE DANS LE PAIN DE MIE N'EXCEDENT GUERE LES 10% POUR LES FIBRES INSOLUBLES ET 5% POUR LES SOLUBLES. POUR LA SUBSTITUTION DU SUCRE DANS LA GENOISE, LE NIVEAU EST DE 5% POUR TOUTES LES FIBRES SAUF L'INULINE QUI PEUT ETRE INCORPOREE A HAUTEUR DE 25% ALORS QU'EN REMPLACEMENT DE LA FARINE, LE NIVEAU EST DE 25% POUR L'INULINE, LA CELLULOSE, LES FIBRES DE POIS BRUTES, DE 15% POUR LES FIBRES DE POIS TRAITEES ALORS QU'IL N'A PAS DEPASSE 5% POUR LA GOMME ARABIQUE. AU NIVEAU NUTRITIONNEL, LA DILUTION CALORIQUE CAUSEE PAR L'ADDITION DES FIBRES A DES REGIMES DE RATS EN CROISSANCE PROVOQUAIT UNE SURCONSOMMATION ET UNE SURCROISSANCE PROPORTIONNELLES A LA QUANTITE AJOUTEE DANS LE CAS DE FIBRES DE POIS ET IL EST SANS EFFET PAR RAPPORT AU TEMOIN DANS LE CAS DE FIBRES D'AVOINE. UNE ETUDE IN VITRO A MONTRE UNE INHIBITION DE LA DIGESTION ENZYMATIQUE PROPORTIONNELLE A LA QUANTITE DE FIBRES AJOUTEES A LA RATION SAUF POUR LES TAUX D'AJOUTS ELEVES QUI NE SEMBLENT PAS AVOIR D'INFLUENCE SUR LA PROTEOLYSE. CES DIFFERENCES DE COMPORTEMENT ALIMENTAIRE NE PEUVENT, CEPENDANT, PAS ETRE EXPLIQUEES PAR DES FACTEURS ANTINUTRITIONNELS OU DES MODIFICATIONS DE VISCOSITE. L'ACTION DES FIBRES SUR LA REGULATION DU METABOLISME LIPIDIQUE A ETE MONTREE PAR L'EFFET HYPOCHOLESTEROLEMIANT DES FIBRES SOLUBLES. EN OUTRE, NOUS AVONS MONTRE LES VARIATIONS CONCOMITANTES DE CERTAINES DONNEES PHYSICO-CHIMIQUES ET DE CERTAINES VARIATIONS DE PARAMETRES BIOLOGIQUES, COMME PAR EXEMPLE LA CORRELATION ENTRE L'EAU DE LA COUCHE MONOMOLECULAIRE A LA SURFACE DES FIBRES ET LA CAPACITE D'ECHANGE D'IONS AVEC L'INSULINEMIE, LE RAPPORT INSULINE/GLUCAGON, LES STEROLS FECAUX ET LA CHOLESTEROLEMIE
Author: Alix Lassergue
Publisher:
ISBN:
Category :
Languages : fr
Pages : 246
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Author: BENOIT.. GIERSCH
Publisher:
ISBN:
Category :
Languages : fr
Pages : 106
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Author: Christine Namokel
Publisher:
ISBN:
Category :
Languages : fr
Pages : 122
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Author: Maite M. Aldaya
Publisher: Routledge
ISBN: 1136538526
Category : Business & Economics
Languages : en
Pages : 224
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Book Description
People use lots of water for drinking, cooking and washing, but significantly more for producing things such as food, paper and cotton clothes. The water footprint is an indicator of water use that looks at both direct and indirect water use of a consumer or producer. Indirect use refers to the 'virtual water' embedded in tradable goods and commodities, such as cereals, sugar or cotton. The water footprint of an individual, community or business is defined as the total volume of freshwater that is used to produce the goods and services consumed by the individual or community or produced by the business. This book offers a complete and up-to-date overview of the global standard on water footprint assessment as developed by the Water Footprint Network. More specifically it: o Provides a comprehensive set of methods for water footprint assessment o Shows how water footprints can be calculated for individual processes and products, as well as for consumers, nations and businesses o Contains detailed worked examples of how to calculate green, blue and grey water footprints o Describes how to assess the sustainability of the aggregated water footprint within a river basin or the water footprint of a specific product o Includes an extensive library of possible measures that can contribute to water footprint reduction
Author: Arnold van Huis
Publisher: Bright Sparks
ISBN: 9789251075951
Category : Conservation of natural resources
Languages : en
Pages : 0
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Book Description
Edible insects have always been a part of human diets, but in some societies there remains a degree of disdain and disgust for their consumption. Although the majority of consumed insects are gathered in forest habitats, mass-rearing systems are being developed in many countries. Insects offer a significant opportunity to merge traditional knowledge and modern science to improve human food security worldwide. This publication describes the contribution of insects to food security and examines future prospects for raising insects at a commercial scale to improve food and feed production, diversify diets, and support livelihoods in both developing and developed countries. It shows the many traditional and potential new uses of insects for direct human consumption and the opportunities for and constraints to farming them for food and feed. It examines the body of research on issues such as insect nutrition and food safety, the use of insects as animal feed, and the processing and preservation of insects and their products. It highlights the need to develop a regulatory framework to govern the use of insects for food security. And it presents case studies and examples from around the world. Edible insects are a promising alternative to the conventional production of meat, either for direct human consumption or for indirect use as feedstock. To fully realise this potential, much work needs to be done by a wide range of stakeholders. This publication will boost awareness of the many valuable roles that insects play in sustaining nature and human life, and it will stimulate debate on the expansion of the use of insects as food and feed.
Author: S. Marie
Publisher: Springer Science & Business Media
ISBN: 1475753802
Category : Science
Languages : en
Pages : 316
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Book Description
The study of sweetness and sweeteners has recently been an area well served by books at all levels, but this volume was planned to fill what we perceived as a gap in the coverage. There appeared to be no book which attempted to combine a study of sweetness with a thorough but concise coverage of all aspects of sweeteners. We set out to include all the important classes of sweeteners, including materials which do not yet have regulatory approval, so that clear comparisons could be made between them and their technological advantages and disadvantages. To achieve our first aim, of sufficient depth of coverage, the accounts within this volume are comprehensive enough to satisfy the requirements of a demanding readership, but cannot be exhaustive in a single volume of moderate proportions. The second aim, of breadth and conciseness, is satisfied by careful selection of the most pertinent material. For the purposes of this book, a sweetener is assumed to be any substance whose primary effect is to sweeten a food or beverage to be consumed, thus including both the nutritive and non-nutritive varieties, from the ubiquitous sucrose to the lesser known, newer developments in alternative sweeteners. The volume has its contents structured in a logical manner to enable it to be used in an ordered study of the complete subject area or as a convenient reference source.
Author: S. Roussos
Publisher: Springer Science & Business Media
ISBN: 9401706611
Category : Technology & Engineering
Languages : en
Pages : 641
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G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.
Author: Rebecca Kormos
Publisher: World Conservation Union
ISBN:
Category : Nature
Languages : en
Pages : 238
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Book Description
Wild chimpanzees are only found in tropical Africa, where their populations have declined by more than 66% in the last 30 years. This Action Plan focuses on one of the four chimpanzee subspecies, the western chimpanzee, which is one of the two subspecies most threatened with extinction. This publication presents a plan for action that represents a consensus among all parties concerned with the conservation of chimpanzees.
