A Direct Process for the Production of High Fructose Syrups from Dates Extracts
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Mohamed H. Gaily
A process comprising of extraction, fermentation, separation and decolorization for the production of high fructose syrups and/or ethanol from dates' extract was developed. In this paper, selective fermentation of the glucose component in dates' extract by Saccharomyces cerevisiae was employed to tailor the composition of the final product (fructose- or ethanol-rich). Over 90% of dates’ sugar was extracted by water. The fermentation experiments were conducted at 30 °C and 120 rpm. The commonly marketed 55% fructose syrup was obtained at two operating conditions, i.e., low (<50%) and high (>92%) sugar conversions. Maximum fructose concentrations (77.2-78.2%) were obtained at moderately high sugar conversions (74-82%). Decolorization by activated carbon for the fructose-rich syrup resulted in 87% of color removal. Preliminary economic analysis revealed the viability of this process.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Articles in the same Issue
- Article
- Thermophysical Characterization of Genipap Pulp
- Comparison of the Effects of Extrusion Cooking on Some Cereal Starches
- Extraction of Ginsenosides from American Ginseng (Panax quinquefolium L.) Root
- Inactivation of Polyphenoloxidase of Pear by Pulsed Electric Fields
- Artificial Neural Network Modelling of Heat Transfer to Canned Particulate Fluids under Axial Rotation Processing
- Ultrasound-Assisted Extraction in Different Solvents for Phytochemical Study of Canna indica
- Development and Characterization of Extruded Product Using Carrot Pomace and Rice Flour
- Characterization of the Immobilized Fructosyltranferase from Rhodotorula sp.
- Thermal and Mechanical Effects on Retention of Food-Grade ?-carotene during Extrusion Processing
- Use of Pulsed Ultraviolet Light to Reduce the Allergenic Potency of Soybean Extracts
- A Direct Process for the Production of High Fructose Syrups from Dates Extracts
- Optimization of Conditions for Collagen Extraction from the Swim Bladders of Grass Carp (Ctenopharyngodon idella) by Response Surface Methodology
- Proximate Composition and Rheological Properties of a Cake Mix Elaborated Using Composite Flour Wheat: Cassava
- Drying of Pomegranate Arils: Comparison of Predictions from Mathematical Models and Neural Networks
- Rheology of Selected Persian Honeys
- Shorter Communication
- Preparation of a Micro-Porous Alginate Gel Using a Microfluidic Bubbling Device
