NUTRITIS;INSTITUT NATIONAL DES SCIENCES APPLIQUEES TOULOUSE
发明人:
PIERRE LAPOUJADE,ALAIN GUIBERT,FRANCOISE OUARNE
申请号：
BRPI0808189
公开号：
BRPI0808189A2
申请日:
2008.01.24
申请国别(地区):
BR
年份:
2014
代理人:
摘要：
The process for preparing a sugar syrup with high content of fructose, comprises preparing a clarified and demineralized sweet juice from a herbal material, treating the juice by hydrolyzing the sucrose into fructose and glucose to obtain a simple sugar composition having a first fructose fraction and a glucose fraction, separating the glucose fraction from the first fructose fraction and isomerizing the glucose into fructose to form a second fraction of fructose, and combining the first and second fractions of fructose and then concentrating into a sugar syrup rich in fructose. The process for preparing a sugar syrup with high content of fructose, comprises preparing a clarified and demineralized sweet juice from a herbal material, treating the juice by hydrolyzing the sucrose into fructose and glucose to obtain a simple sugar composition having a first fructose fraction and a glucose fraction, separating the glucose fraction from the first fructose fraction and isomerizing the glucose into fructose to form a second fraction of fructose, and combining the first and second fractions of fructose and then concentrating into a sugar syrup rich in fructose. The process is carried out with a fruit such as apple, peach, nectarine and grapes. The sweet juice has a color less than ICUMSA 45 (international commission for uniform methods of sugar analysis), and presents a rate of conductimetric ash of less than 0.4%. A partial elimination of sorbitol present in the fruit is carried out by elution chromatography prior to prepare the juice. The juice is subjected to centrifugation of 5000 g, ultrafiltration on a porous membrane having cut-off threshold of 2.5 kDa by applying a transmembrane pressure of 7 bars, electrodialysis for eliminating ionic charges of the juice, and chromatography. The electrodialysis is carried out with selected working parameters for obtaining a liquid composition of conductivity of less than 800 mu Scm ->； 1>； at 50[deg] C. The chromatography is c
