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Journal of Food Engineering | 1992

Some features of the parameter k of the GAB equation as applied to sorption isotherms of selected food materials

Jorge Chirife; Ernesto O. Timmermann; Héctor A. Iglesias; Reinaldo Boquet

Abstract This work reports that the parameter k (factor correcting the properties of the multilayer) in the GAB sorption equation varies from nearly unity to as low as 0·56 for a large variety of food constituents and related materials. Values of k for proteins fall in a relatively narrow range of 0·82–0·88 (average 0·84±0·03 SD), while for starchy materials they fall in the range 0·70–0·77 (average 0·74±0·03 SD).


International Journal of Food Science and Technology | 1978

Equations for fitting water sorption isotherms of foods

Reinaldo Boquet; Jorge Chirife; Héctor A. Iglesias


International Journal of Food Science and Technology | 2007

Equations for fitting water sorption isotherms of foods. III. Evaluation of various three-parameter models

Reinaldo Boquet; Jorge Chirife; Héctor A. Iglesias


Journal of Food Science | 2006

Kinetics of Water Uptake by Food Powders

A.M.R. Pilosof; Reinaldo Boquet; G.B. Bartholomai


Journal of Food Science | 1983

A New Model for Describing the Water Sorption Isotherm of Foods

Jorge Chirife; Reinaldo Boquet; Constantino Ferro Fontan; Héctor A. Iglesias


Journal of Food Science | 1980

PREDICTION OF WATER SORPTION ISIOTHERMS OF FOOD MODELS FROM KNOWLEDGE OF COMPONENTS SORPTION BEHAVIOR

Héctor A. Iglesias; Jorge Chirife; Reinaldo Boquet


International Journal of Food Science and Technology | 2007

Technical note: On the equivalence of isotherm equations

Reinaldo Boquet; Jorge Chirife; Héctor A. Iglesias


Journal of Food Science | 1982

Effect of Heat Treatment on Sorption Isotherms and Solubility of Flour and Protein Isolates from Bean Phaseolus vulgaris

A.M.R. Pilosof; G.B. Bartholomai; Jorge Chirife; Reinaldo Boquet


International Journal of Food Science and Technology | 2007

Water activity in multicomponent non-electrolyte solutions

C. Ferro Fontan; Jorge Chirife; Reinaldo Boquet


International Journal of Food Science and Technology | 2007

Some characteristics of the heat of water vapour sorption in dried foodstuffs

Jorge Chirife; Héctor A. Iglesias; Reinaldo Boquet

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