- Email: [email protected]
Publication received
Tcrlanta,Vol. 36, No. 9, p. i, 1989 Pergamon Press pk. Printed in Great Britain
PUBLICATIONS RECEIVED
Biate&nelogy and Food Industry: m of the International Symposhmt, Burlapeat, S-9 Cktober 1987: J. HOLL.&I and D. T&LEY (editors), Akadtmiai Kiado, Budapest, 1988. Pages xix + 707. f41.50. “Biotechnology and Food Industry” is the latest topic in a series of special symposia selected by the International Commission of Food and Agroindustries. The Symposium was organized by the Hungarian Scientific Society of Food Industry and the Food Science Committee of the Hungarian Academy of Sciences, in cooperation with the European Federation of Biotechnology, the European Federation of Chemical Engineering Food Working Group and the International Union of Food Science and Technology. The book is 700 pages long and contains 64 papers (4 in French, the rest in English), the largest proportion coming from Hungary. The standard of the papers and the quality of the publication is reasonably good. The first section, General Topics, contains 8 reviews of general problems in biotechnology, and of the situation of biotechnology in certain countries. The second section, Genetic Engineering Physiology, contains 10 papers, half of which relate to the selection, breeding, improvement, and regulation of wine and brewing yeasts: the other half deals with such topics as expression of genes, somatic hybridization by protoplast fusion, and cloning by using plasmid and cosmid vector systems. The papers in this and remaining sections are generally in the format of abstract-introduction-matesials, methods-results and discussion-references, except for 5 papers which appear in abstract form only. The third section, Enzymes and Microorganisms, contains 22 papers and deals with the production, techniques (e.g., immobilization), and conditions for optimal efficiency. The fourth and last section, Technological Applications, also containing 22 papers, focuses attention on the manufacture of specific end-products such as fuel alcohol, citric acid, beer, wort, bread, and feedstocks. It has also papers dealing with the treatment of (food) industrial effluent. This book gives information on the present state and possible future developments in_biotechnology in the food industries of some countries. Those associated with biotechnology and the food industry may find in this book some ideas useful to the solution of their own problems. J. B. CRAIG Flow Perturbation Gas Chromatography:
N. A.
KATSANOS,
Dekker, New York, 1988. Pages ix + 304.
Volume 42 in this series of monographs on chromatographic science is concerned with the theoretical and practical aspects of flow perturbation gas chromatography. The lirst chapter serves as an introduction to the topic and covers the necessary background. This is followed by details of the stopped-flow technique and the bulk of the text is then devoted to the reversed-flow technique. This latter technique, pioneered by the author, is based on reversing the direction of flow of the carrier gas from time to time rather than stopping it for short intervals. Details of experimental arrangements are described clearly and a number of illustrations showing lay-outs of equipment, the resulting chromatograms and plots of experimental data are given. The underlying mathematics of the techniques is dealt with in a competent manner and the reader should be familiar with, for example, Laplace transformations to cope with the level of detail presented. The various physicochemical applications of the reversed-flow techniques are classified according to whether the experimental arrangement includes an empty diffusion column, a filled ditlirsion column or a 5led sampling column. The measurement of gas diffusion coe5cients, mass transfer coefficients, adsorptiondesorption rates and activity coe5cients in liquid mixtures are among the many determinations covered. Specific examples of reaction kinetics studied by the techniques are presented, including the oxidation of carbon monoxide and the dehydration of alcohols. References, many by the author, are given at the end of each chapter along with lists of symbols used. The book will be of much interest to all those studying heterogeneous catalysis. P. J. Cox
PUBLICATIONS RECEIVED
Biate&nelogy and Food Industry: m of the International Symposhmt, Burlapeat, S-9 Cktober 1987: J. HOLL.&I and D. T&LEY (editors), Akadtmiai Kiado, Budapest, 1988. Pages xix + 707. f41.50. “Biotechnology and Food Industry” is the latest topic in a series of special symposia selected by the International Commission of Food and Agroindustries. The Symposium was organized by the Hungarian Scientific Society of Food Industry and the Food Science Committee of the Hungarian Academy of Sciences, in cooperation with the European Federation of Biotechnology, the European Federation of Chemical Engineering Food Working Group and the International Union of Food Science and Technology. The book is 700 pages long and contains 64 papers (4 in French, the rest in English), the largest proportion coming from Hungary. The standard of the papers and the quality of the publication is reasonably good. The first section, General Topics, contains 8 reviews of general problems in biotechnology, and of the situation of biotechnology in certain countries. The second section, Genetic Engineering Physiology, contains 10 papers, half of which relate to the selection, breeding, improvement, and regulation of wine and brewing yeasts: the other half deals with such topics as expression of genes, somatic hybridization by protoplast fusion, and cloning by using plasmid and cosmid vector systems. The papers in this and remaining sections are generally in the format of abstract-introduction-matesials, methods-results and discussion-references, except for 5 papers which appear in abstract form only. The third section, Enzymes and Microorganisms, contains 22 papers and deals with the production, techniques (e.g., immobilization), and conditions for optimal efficiency. The fourth and last section, Technological Applications, also containing 22 papers, focuses attention on the manufacture of specific end-products such as fuel alcohol, citric acid, beer, wort, bread, and feedstocks. It has also papers dealing with the treatment of (food) industrial effluent. This book gives information on the present state and possible future developments in_biotechnology in the food industries of some countries. Those associated with biotechnology and the food industry may find in this book some ideas useful to the solution of their own problems. J. B. CRAIG Flow Perturbation Gas Chromatography:
N. A.
KATSANOS,
Dekker, New York, 1988. Pages ix + 304.
Volume 42 in this series of monographs on chromatographic science is concerned with the theoretical and practical aspects of flow perturbation gas chromatography. The lirst chapter serves as an introduction to the topic and covers the necessary background. This is followed by details of the stopped-flow technique and the bulk of the text is then devoted to the reversed-flow technique. This latter technique, pioneered by the author, is based on reversing the direction of flow of the carrier gas from time to time rather than stopping it for short intervals. Details of experimental arrangements are described clearly and a number of illustrations showing lay-outs of equipment, the resulting chromatograms and plots of experimental data are given. The underlying mathematics of the techniques is dealt with in a competent manner and the reader should be familiar with, for example, Laplace transformations to cope with the level of detail presented. The various physicochemical applications of the reversed-flow techniques are classified according to whether the experimental arrangement includes an empty diffusion column, a filled ditlirsion column or a 5led sampling column. The measurement of gas diffusion coe5cients, mass transfer coefficients, adsorptiondesorption rates and activity coe5cients in liquid mixtures are among the many determinations covered. Specific examples of reaction kinetics studied by the techniques are presented, including the oxidation of carbon monoxide and the dehydration of alcohols. References, many by the author, are given at the end of each chapter along with lists of symbols used. The book will be of much interest to all those studying heterogeneous catalysis. P. J. Cox