International Journal of Food Engineering
Editor-in-Chief: Chen, Xiao Dong
12 Issues per year
IMPACT FACTOR 2017: 0.923
CiteScore 2017: 0.98
SCImago Journal Rank (SJR) 2017: 0.323
Source Normalized Impact per Paper (SNIP) 2017: 0.505
A Direct Process for the Production of High Fructose Syrups from Dates Extracts
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.
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