Enzymic Reduction of Dextran in Process - Laboratory Evaluation of Dextranases
نویسنده
چکیده
The dextran content of both mixed juice and very high pol sugar has shown an increase in recent seasons. Laboratory trials have been used to show that thermally stable dextranase could be used to reduce the dextran concentration in evaporator syrup when high levels of dextran are unavoidable. Dextranase treatment of diffuser juices is unsuitable because of the high temperature, low Brix conditions encountered in this part of process. Potential benefits probably include viscosity decreases leading to increased sugar recovery whilst the enzymic reduction of dextran in process will result in improved sugar quality.
منابع مشابه
Microbial dextran-hydrolyzing enzymes: fundamentals and applications.
Dextran is a chemically and physically complex polymer, breakdown of which is carried out by a variety of endo- and exodextranases. Enzymes in many groups can be classified as dextranases according to function: such enzymes include dextranhydrolases, glucodextranases, exoisomaltohydrolases, exoisomaltotriohydrases, and branched-dextran exo-1,2-alpha-glucosidases. Cycloisomalto-oligosaccharide g...
متن کاملStudies on dextrans and dextranases. 2. The action of mould dextranases on modified isomaltodextrins and the effect of anomalous linkages on dextran hydrolysis.
متن کامل
Dextran-degrading Enzymes from Molds1
Enzymes capable of degrading dextran, the polymer of glucose produced from sucrose by the action of Leuconostoc mesenteroides and related organisms, are potentially valuable for fundamental research as well as for practical application. Although the a-i ,6-glucopyranosidic linkage is present to the extent of 95 per cent or more in some easily obtainable dextrans, the only other known occurrence...
متن کاملProtective Effects of Pioglitazone against Dextran Sodium Sulphate-Induced Colitis in Rats.
The aim of the present study is to investigate the preventive effect of pioglitazone on colitis induced with dextran sulfate sodium (DSS) in rats. Twenty-four male Sprague-Dawley rats weighing 180-200 g were randomized into four groups. Rats of the 1st group received only saline and served as normal group. Colitis was induced in the remaining 3 groups by 1.5% DSS administered in drinking water ...
متن کاملIn vitro capacity and in vivo antioxidant potency of sedimental extract of Tinospora cordifolia in streptozotocin induced type 2 diabetes
Objective: The role of herbs against the free radicals have been put forth recently in combating many diseases. The aim of this study was to elucidate the in vitro capacity and in vivo antioxidant properties of sedimental extract of Tinospora cordifolia (SETc). Materials and Methods: SETcwas subjected to in vitro chemical analysis such as 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide, hydr...
متن کامل