7 results about "Rare sugar" patented technology

Disclosed herein are formulations (including sweet proteins and rare sugars) for improving the sweetness of low glycemic index rare sugars without altering the texture and flavor of the rare sugars and methods for improving the sweetness of rare sugars. More specifically, the present invention discloses methods for improving the sweetness of rare sugars without altering the sweetness profile, texture and flavor of the primary sugars. The invention also discloses the addition of Brazitame protein with liquid rare sugars at different temperatures during the synthesis of the rare sugars, before crystallization or before or after caramelization of the rare sugars, to increase sweetness. The Brazilian sweet protein increases the sweetness of rare sugars, but is not limited to D-psicose, D-tagatose, D-allose, isomaltulose, trehalose, sorbose, pinose, leucobiose and the like. The invention also provides for the evaluation of non-nutritional sweeteners (such as aspartame, acesulfame, sodium cyclamate, neotame, saccharin, sucralose, stevioside, etc.), as each has a limitation of taste quality if used with rare sugars. However, the use of Brazilian sweet protein does not alter the flavor and texture of rare sugars, and the taste profile matches sucrose.

The present invention produces fermented kombucha beverages with reduced alcohol content by utilizing allulose or analogues thereof as the primary fermentable sugar. These rare sugars limit ethanol production during fermentation while preserving flavor, probiotic benefits, and acidity. The invention further encompasses the incorporation of Kratom (Mitragyna speciosa) extracts or alkaloids into the fermentation process or final product, enabling a low-alcohol kombucha with potential enhanced wellness properties. The resulting beverage maintains an alcohol content below 0.5% by volume, making it suitable for non-alcoholic labeling and broader consumer appeal. The invention is preferably a bottled beverage.

The invention provides a property-changed fructose-1, 6-diphosphate aldolase mutant and application thereof, and relates to the technical field of enzyme engineering. According to the invention, a series of enzyme mutants with enhanced structural stability are obtained by carrying out rational design and site-directed mutagenesis on key sites of wild fructose-1, 6-diphosphate aldolase. Compared with a wild type, the mutant can keep certain enzyme activity at high temperature, shows excellent heat resistance, can be used as a core biocatalyst to efficiently catalyze a chiral compound synthesis reaction taking dihydroxyacetone phosphate as a key precursor, can still keep high catalytic efficiency at 50 DEG C, and can be used for preparing a chiral compound. The key bottleneck that natural enzyme is prone to thermal inactivation in industrial application is solved, and the method has wide application prospects in green biological manufacturing of high-added-value products such as drug intermediates and rare sugar.

The invention discloses a D-tagatose-3-epimerase mutant and application thereof, the D-tagatose-3-epimerase mutant has a single-point mutation or a multi-point mutation in the 45th mutation, the 48th mutation, the 50th mutation, the 80th mutation, the 93th mutation, the 98th mutation and the 144th mutation relative to an amino acid sequence SEQ ID NO.1 of a wild type D-tagatose-3-epimerase, and the D-tagatose-3-epimerase mutant has a single-point mutation or a multi-point mutation in the 45th mutation, the 48th mutation, the 50th mutation, the 80th mutation, the 93th mutation, the 98th mutation and the 144th mutation. The invention also provides a corresponding coding gene, a recombinant vector, a genetically engineered bacterium, a biocatalyst and application in preparation of rare sugars. The invention develops the D-tagatose-3-epimerase mutant which has stronger adaptability with glucose isomerase and is more stable in a cascade reaction, is beneficial to improving the efficiency of reaction for preparing rare sugar by using xylose, can simultaneously consider higher substrate concentration and D-xylose conversion rate, and reduces the production cost of the product.

The application discloses a kind of added Co 2+ The application discloses a method for improving the yield of D-allulose produced by multi-enzyme catalysis, belonging to the field of biotechnology. The application provides a method for producing D-allulose by multi-enzyme catalysis, which comprises adding sucrose phosphorylase from Bifidobacterium adolescentis, fructokinase from Clostridium acetobutylicum, D-allulose-6-phosphate phosphatase from Clostridium thermocellum, and D-allulose-6-phosphate-3-epimerase from Pantoea sp to a reaction system containing sucrose and ATP, and then adding a metal ion solution to the reaction system to produce D-allulose. The application synthesizes an important low-calorie functional rare sugar D-allulose using inexpensive sucrose as a substrate, and experiments show that the addition of cobalt ions can increase the yield of D-allulose by five times.

The present invention provides a cosmetic composition that can maintain high moisturizing properties even after being washed off with water. [Solution] The cosmetic composition of the present invention contains a biosurfactant having a mannose skeleton and a water-retaining agent. For example, the water-retaining agent is a sugar alcohol, rare sugar, isomerized sugar, alkyl glycoside, sucrose fatty acid ester, or hyaluronic acid and derivatives thereof, and the biosurfactant contains mannosylerythritol lipid (MEL).

The present invention aims to provide a food (including foods for specified health uses and foods with functional claims) or pharmaceutical product containing rare sugars as an active ingredient that can be used for novel applications. [Solution] The above problem is achieved by a food composition or pharmaceutical composition containing D-allose, D-sorbose, or derivatives thereof as an active ingredient, for the prevention, improvement, or treatment of symptoms or diseases selected from the group consisting of obesity due to overeating, diabetes or elevated blood glucose levels resulting from obesity due to overeating, and hepatic fat accumulation resulting from obesity due to overeating.