Develop a novel method for removing fusel alcohols from rice spirits using nanofiltration.

The removal effect on excessive fusel alcohols from rice spirits were investigated using nanofiltration (NF) and ultrafiltration (UF). Compared to UF (GE and GH membranes), NF (DK and DL membranes) showed 10 times greater effect for fusel alcohols rejection due to molecular weight cut-off. On operating pressures, 488.95 kPa was suitable with a rejection rate attaining 44.2% for DK membrane. Only slight changes in physicochemical indices including ethanol concentration, flavor, total acidity, pH value, and soluble solid content were observed for rice-spirits after NF treatment. Moreover, rice spirits treated with the DK membrane achieved a higher score in sensory evaluation. We anticipated a practical application of the nonheat processes in rice spirits production.

[1]  Li Wang,et al.  Feasibility of the use of visible and near infrared spectroscopy to assess soluble solids content and pH of rice wines , 2007 .

[2]  L. Mao,et al.  Antioxidant activities of five Chinese rice wines and the involvement of phenolic compounds , 2006 .

[3]  F. Pérez-Nevado,et al.  Influence of Saccharomyces cerevisiae yeast strain on the major volatile compounds of wine , 2006 .

[4]  D. Lachenmeier,et al.  Defining maximum levels of higher alcohols in alcoholic beverages and surrogate alcohol products. , 2008, Regulatory toxicology and pharmacology : RTP.

[5]  L. Sipos,et al.  Removal of sulfates and other inorganics from potable water by nanofiltration membranes of characterized porosity , 2004 .

[6]  Sandra Cortés,et al.  Volatile composition of traditional and industrial Orujo spirits , 2005 .

[7]  Shujuan Yu,et al.  The effects of AC electric field on wine maturation , 2008 .

[8]  R. Greenshields.  Volatiles in home-brewed beers and wines. , 1974, Journal of the science of food and agriculture.

[9]  Kwang-Sup Youn,et al.  Effective clarifying process of reconstituted apple juice using membrane filtration with filter-aid pretreatment , 2004 .

[10]  Gyula Vatai,et al.  Concentration of red wine by nanofiltration , 2006 .

[11]  P. Bouchard,et al.  Separation and purification of benzylpenicillin produced by fermentation using coupled ultrafiltration and nanofiltration technologies. , 2005, Journal of Biotechnology.

[12]  Liao Xin-xing.  Study on improving rice wine acidity , 2006 .

[13]  B. Shankaraiah,et al.  Concentration of xylose reaction liquor by nanofiltration for the production of xylitol sugar alcohol , 2005 .

[14]  M. Ferrando,et al.  Concentration of apple and pear juices by nanofiltration at low pressures , 2004 .

[15]  Audrey Chingzu Chang,et al.  The application of 20 kHz ultrasonic waves to accelerate the aging of different wines , 2002 .