Maltosyl-erythritol, a Major Transglycosylation Product of Erythritol byBacillus stearothermophilusMaltogenic Amylase
نویسندگان
چکیده
منابع مشابه
Erythritol is a sweet antioxidant.
OBJECTIVE Hyperglycemia, oxidative stress, and the onset and progression of diabetic complications are strongly linked. Reduction of oxidative stress could be of utmost importance in the long-term treatment of diabetic patients. The chronic nature of the disease calls for a mode of antioxidant intake that can be sustained easily, e.g., by the diet. Erythritol, a simple polyol, could be such a c...
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A yeastlike fungus, probably belonging to the genus Torula, was isolated from fresh pollen and was shown to produce erythritol in yields of 35 to 40% of the sugar utilized. The ability to produce erythritol is an inherent characteristic of the isolate, but unfavorable fermentation conditions can lead to the production of glycerol at the expense of erythritol. By the use of a synthetic medium, i...
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Randomly labeled erythritol-14C has been synthesized and incubated with fluoride-poisoned suspensions of dried cells of Propionibacterium pentosoceum. Therefrom labeled glycerol-d-P, glyceric acid-j-P, erythritol-l-P, ribose-5-P, xyhalose-5-P, glucose-6-P, fructosed-P, mannosed-P, fructose-1 ,6-di-P, and sedoheptulose-7-P were isolated. Erythritol-W-1-P accumulated more rapidly than did the oth...
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In a recent paper (l), we reported the formation of itatartaric acid by an ultraviolet-induced mutant of Aspergillus terreus. We have since found that by prolonged ether extraction of the concentrated culture liquor therein described a brown gum is obtained which, after some months standing, deposited large crystals. These crystals (3.25 gm.) could be separated from the gum on the basis of thei...
متن کاملTransglycosylation activity of Dictyoglomus thermophilum amylase A.
Amylase A from Dictyoglomus thermophilum is a thermophilic enzyme and has about 40% identity with 4-alpha-glucanotransferase (GTase) from Thermococcus litoralis, and both of these enzymes belong to family 57 glycosyl hydrolase. Since the transglycosylation activity of T. litoralis GTase has been well characterized, the substrate specificity and reaction products of amylase A from D. thermophilu...
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ژورنال
عنوان ژورنال: Bioscience, Biotechnology, and Biochemistry
سال: 2003
ISSN: 0916-8451,1347-6947
DOI: 10.1271/bbb.67.525