摘要:
Disclosed are novel non-reducing saccharide-forming enzyme, and its preparation and uses. The enzyme is obtainable from the culture of microorganisms such as Rhizobium sp. M-11 (FERM BP 4130) and Arthrobacter sp. Q36 (FERM BP-4316), and capable of forming non-reducing saccharides having a trehalose structure when allowed to act on reducing partial starch hydrolysates. Glucoamylase and .alpha.-glucosidase readily yield trehalose when allowed to act on the non-reducing saccharides. These non-reducing saccharides and trehalose are extensively useful in food products, cosmetics and pharmaceuticals.
摘要翻译:公开了新型非还原性糖形成酶及其制备和用途。 该酶可从诸如根瘤菌属的微生物培养物获得。 M-11(FERM BP 4130)和节杆菌属 Q36(FERM BP-4316),并能够形成具有海藻糖结构的非还原性糖类,当其作用于还原部分淀粉水解产物时。 葡糖淀粉酶和α-葡萄糖苷酶当允许作用于非还原糖时容易产生海藻糖。 这些非还原性糖和海藻糖广泛用于食品,化妆品和药物。
摘要:
The present invention has objects to provide a method for inhibiting the formation of volatile aldehydes and/or the decomposition of fatty acids and use thereof. These objects are attained by establishing a method which comprises incorporating an α-oligoglucosyl α,α-trehalose(s) to a target product to inhibit the formation of volatile aldehydes per se and/or the decomposition of fatty acids per se in fatty acid-containing products; an inhibitory agent for inhibiting the formation of volatile aldehydes and/or the decomposition of fatty acids, which contains an α-oligoglucosyl α,α-trehalose(s) as an effective ingredient; and use thereof to thereby obtain various compositions such as food products, cosmetics, pharmaceuticals, and their materials and intermediates each having a high quality and stability.
摘要:
A novel process for producing isomaltose and uses thereof and comprising the steps of contacting saccharides, which have a glucose polymerization degree of at least two and α-1,4 glucosidic linkage as a linkage at the non-reducing end, with an α-isomaltosylglucosaccharide-forming enzyme, in the presence or the absence of α-isomaltosyl-transferring enzyme to form a-isomaltosylglucosaccharides, which have a glucose polymerization degree of at least three, α-1,6 glucosidic linkage as a linkage at the non-reducing end, and α-1,4 glucosidic linkage as a linkage other than the non-reducing end, and/or to form cyclo{→6)-α-D-glucopyranosyl-(1→3)-α-D-glucopyranosyl-(1→6)-α-D-glucopyranosyl-(1→3)-α-D-glucopyranosyl-(1→}; contacting the saccharides so formed with isomaltose-releasing enzyme to release isomaltose; and collecting the released isomaltose; and uses thereof.
摘要:
The present invention aims to provide a novel process for producing isomaltose and isomaltitol, and uses thereof, and it solves the object by establishing a process for producing isomaltose comprising a step of contacting a saccharide, having the α-1,4 glucosidic linkage as the linkage of non-reducing end and a glucose polymerization degree of at least two, with an α-isomaltosyl-transferring enzyme and an α-isomaltosylglucosaccharide-forming enzyme derived from a specific microorganism; a process for producing isomaltitol using the isomaltose produced by the above process; saccharide compositions comprising the isomaltose and/or the isomaltitol produced by the above processes; and uses thereof.
摘要:
A non-reducing saccharide-forming enzyme and a trehalose-releasing enzyme, which have an optimum temperature in a medium temperature range, i.e., a temperature of over 40 or 45° C. but below 60° C.; and an optimum pH in an acid pH range, i.e., a pH of less than 7. The two-types of enzymes can be obtained in a desired amount, for example, by culturing in a nutrient culture medium microorganisms capable of producing the enzymes or by recombinant DNA technology.
摘要:
The present invention has an object to provide an external dermatological formulation having satisfactory blood flow-promoting effect, antiinflammatory effect, antibacterial effect, moisturizing effect, whitening effect, UV-absorbing effect, UV-scattering effect, antioxidant effect, hair growing effect, hair nourishing effect, emusifying effect, astringent effect, wrinkle-reducing effect, cell-activating effect and/or transdermal absorption-promoting effect with a satisfactory safety and skin feeling; The object is solved by providing an external dermatological formulation comprising a saccharide derivative of α,α-trehalose and one or more members selected from substances having any one of blood flow-promoting effect, antiinflammatory effect, antibacterial effect, moisturizing effect, whitening effect, UV-absorbing effect, UV-scattering effect, antioxidant effect, hair growing efect, hair nourishing effect, emulsifying effect, astringent effect, wrinkle-reducing effect, cell-activating effect and transdermal absorption-promoting effect.
摘要:
The object of the present invention is to provide a method and a process for producing 2-O-α-glucopyranosyl-L-ascorbic acid where 5-O-α-glucopyranosyl-L-ascorbic acid and 6-O-α-glucopyranosyl-L-ascorbic acid are not formed or formed in such a small amount that the formation of these can nor be detected. The present invention solves the above object by providing a process for producing 2-O-α-glucopyranosyl-L-ascorbic acid comprising the steps of allowing α-isomaltosyl glucosaccharide-forming enzyme together with or without cyclomaltodextrin glucanotransferase (EC 2.4.1.19) to act on a solution comprising L-ascorbic acid and, an α-glucosyl saccharide to form 2-O-α-glucopyranosyl-L-ascorbic acid and collecting the formed 2-O-α-glucopyranosyl-L-ascorbic acid.
摘要:
The present invention has the object to dehydrate hydrous matters without denaturing or deteriorating them by using a dehydrating agent comprising an anhydrous cyclotetrasaccharide, and provides a dehydrating agent comprising the cyclotetrasaccharide; a method for dehydrating hydrous matters through a step of incorporating, contacting or coexisting the cyclotetrasaccharide into, with, or in the hydrous matters; and dehydrated products obtainable thereby.
摘要:
A reduction inhibitory agent for active oxygen eliminating activity which comprises cyclotetrasaccharide i.e., cyclo{6}-α-D-glucopyranosyl-(1 3)-α-D-glucopyranosyl-(1 6)-α-D-glucopyranosyl-(1 3)-α-D-glucopyranosyl-(1), as an effective ingredient, a method for inhibiting the reduction of active oxygen eliminating activity which comprises incorporating either cyclotetrasaccharide or the reduction inhibitory agent into plant edible products and/or plant antioxidants, and a composition where the reduction of active oxygen eliminating activity of the plant edible products and/or plant antioxidants has been satisfactorily inhibited by the method.
摘要:
A kojibiose phosphorylase which hydrolyzes kojibiose in the presence of an inorganic phosphoric acid to form D-glucose and &bgr;-D-glucose-1-phosphoric acid, forms kojibiose and an inorganic phosphoric acid from &bgr;-D-glucose-1-phosphoric acid, and catalyzes the transfer reaction of glucosyl group to other saccharides using &bgr;-D-glucose-1-phosphoric acid as a saccharide donor. The enzyme is obtainable from natural sources such as microorganisms of the genus Thermoanaerobium, and obtainable by recombinant technology. Kojibiose phosphorylase is used to transfer glucose from glucose-1-phosphate to acceptor saccharides to produce &agr;-D-glucosyl-1(1→5)-L-sorbose, kojibiosylglucose, kojibiosylglucoside and kojibiosylfructoside.