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Historic, Archive Document Do not assume content reflects current scientific knowledge, policies, or practices. I 5 Tfl 2, *7 TV CT PROCEEDINGS OF THE SUGAR PROCESSING 1994 RESEARCH CONFERENCE AUGUST 7-9, 1994 HELSINKI, FINLAND U m •; CO ; . O J> O — 20 . **< PROCEEDINGS OF THE SUGAR PROCESSING 1994 RESEARCH CONFERENCE AUGUST 7-9, 1994 HELSINKI, FINLAND Sponsored by Sugar Processing Research Institute, Inc. December, 1994 Copyright © 1994, by Sugar Processing Research Institute, Inc. All rights reserved ISBN 1-883326-02-8 PREFACE The 1994 Sugar Processing Research Conference is one of a series of Conferences held in alternate years to provide a forum for exchange of information among technical leaders of the sugar industry and to report on new and noteworthy developments. The Conference was sponsored by Sugar Processing Research Institute, Inc. (SPRI) The Southern Regional Research Center, Agricultural Research Serv.ice, U.S. Department of Agriculture, contributed in kind to the organization of the Conference. The program for this conference was arranged by Margaret A. Clarke. The Conference Coordinator was Shirley T. Saucier. These Proceed- ings were edited by Margaret A. Clarke with editorial assistant Beryl Ann Borel. The series, Proceedings of the Sugar Processing Research Confer- ence, of which this is the seventh issue, continues the Proceedings of the Technical Sessions on Cane Sugar Refining Research, which was published every other year from 1964 to 1980. For individual copies of this volume as well as back issues of the former series as long as the supply lasts, write to Sugar Processing Research Institute, Inc., 1100 Robert E. Lee Blvd. New Orleans, LA 70124. Before 1986, Proceedings were publishe,d by the Agricultural Research Service, U.S. Department of Agriculture. Since 1988, Proceedings have been published by the Sugar Processing Research Institute. Margaret A. Clarke Managing Director Sugar Processing Research Institute, Inc. Leif Ramm-Schmidt President Sugar Processing Research Institute, Inc. i CONTENTS SPRI Science Award Lecture: Computer simulation of chemical and biological properties of sucrose, the cyclodextrins and amylose 1 Frieder W. Lichtenthaler Filterability of raw sugars - comparing laboratory test results with refinery performance 33 Michael Donovan and Edward F.T. Lee Separation and characterisation of polysaccharides from sugarcane impurities: Use of NMR techniques 54 Riaz Khan, Antonella Meliota, Erminio Murano and Renato Toffanin Raw juice cooling crystallization: Pilot plant trials on continuous concentration and crystallization steps 71 Giuseppe Vaccari, Giorgio Mantovani, Giulio Sgualdino and Franco Andreoli Sugar factory instrumentation and automation strategy 93 Sven Barfoed and Visti Andersson Effect of manganese and veratryl alcohol on the colour removal from sugar refinery effluents with Phanerochaete chrysosporium 103 Carla B.C. Guimaraes, Luis S.M. Bento, and Manuel G. Mota Applications of Fourier transform infrared spectroscopy to the identification of white sugar contaminants 120 D. Eugene Rearick Automatic analysing of sugarbeet and soil samples in Finland 140 Marja Pelo and Harri Pietinen Heavy metal concentrations in sugarbeet fields and sugarbeet in Finland 151 Matti Erjala and Raimo Ervio The optimum use of tails from beet processing 170 Nicholas W. Broughton, David Sargent, Trevor C. Theobald and F. Gaughan Thermodynamic activity of water and sucrose and the stability of crystalline sugar 190 Catherine Bressan and Mohamed Mathlouthi Near infrared spectroscopy in the sugarbeet industry 210 Jan Maarten de Bruijn ii On-line NIR for sugar-house syrups: A technological step too far? 225 Russell Jones, Geoff Parkin and Charles W.C. Harvey The application of NIR spectrophotometry in the cane sugar refinery 245 Phil Guglielmi and Debbie Anderson The use of NIR/NIT within the food and agricultural sector... 261 Leif Tilmanis New utilization of the NIR technique: Control of an ion exchange resins system for lactic acid recovery from fermentation 273 Giuseppe Vaccari, Elisabetta Dosi, Anna Lisa Campi and Giorgio Mantovani Universal NIR calibrations for the sugar industry 288 Les A. Edye, Margaret A. Clarke and Cynthia McDonald-Lewis Dextran analysis in sugar by nuclear magnetic resonance spectroscopy 303 Les A. Edye, Shaoxiong Wu, Margaret A. Clarke and Per J. Garegg Sensory properties of white beet sugars 312 Mary An Godshall, Casey C. Grimm and Margaret A. Clarke Use of DEAE-bagasse to remove color, turbidity and polysaccharides in sugar manufacture 332 Earl J. Roberts, Margaret A. Clarke and Les A. Edye Leucoanthocyanins, aconitic acid and turbidity in sugarcane - An update on cane colorants 341 Mary An Godshall and Casey C. Grimm Fiber in sugarcane and bagasse 365 Margaret A. Clarke, Benjamin L. Legendre, Raul Perdomo, Les A. Edye, Rebeca S. Blanco, Xavier M. Miranda and Angel K. Kelly Experience of start-up and operation of an automatic robot station for sugar analyses 376 Soili Ylisuutari Finnsugar Sucros Ltd. Porkkala refinery 388 Tage Engman and PSivi Paakkarinen iii ABSTRACTS OF POSTERS The measurement of dextran in raw sugars using ‘H nmr 400 Les A. Edye, Shaoxiong Wu, and Margaret A. Clarke Near infrared analysis of simple and complex saccharides 400 Margaret A. Clarke, Les A. Edye and Cynthia McDonald-Lewis Isolation and characterization of dextrans from sugarbeet and beet sugar 401 Margaret A. Clarke, Per J. Garegg and Earl J. Roberts HPLC (high performance liquid chromatography) analyses of sugarbeet juices 401 Rebeca S. Blanco, Chad V. Scott, Les A. Edye and Margaret A. Clarke A new infrared drier for white, raw, and powdered sugars .... 402 Xavier M. Miranda, Mary An Godshall and Margaret A. Clarke Biosensor electrode (BSE) for determination of sucrose and glucose 402 Rebeca S. Blanco, Les A. Edye and Margaret A. Clarke Analysis of oligosaccharides in sugar products and honey by high performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD) 402 Margaret A. Clarke, Les A. Edye and Glori-Lynn Cargel A contribution from sucrose to chemical theory 403 Alfred D. French Attendance List 404 iv