摘要:
Disclosed is a novel non-reducing oligosaccharide with neotrehalose structure represented by the general formula as shown by: ##STR1## The oligosaccharide is obtainable by exposing an aqueous solution containing neotrehalose to a saccharide-transferring enzyme, and has a superior stability, reduced sweetness, appropriate viscosity, no susceptibility to crystallization and less fermentability. These features make it very useful in various compositions including foods, beverages, cosmetics and pharmaceuticals.
摘要:
Oligoglucosylfructosides wherein an oligoglucosylfructoside having a polymerization degree of 2 or 3 glucose units are recovered in a high purity from a feed solution additionally containing substantial amounts of higher- and lower-oligosaccharides by sequentially admitting predetermined volumes of the feed solution and water to the column of a strongly-acidic cation exchange resin in alkaline-earth metal form; sequentially separating the effluents from the column into the first fraction rich in the higher oligosaccharide, the second fraction rich in the higher oligosaccharide but highly contaiminated with the oligoglucosylfructoside, the first fraction rich in the oligoglucosylfructoside, the fourth fraction rich in the oligoglucosylfructoside but highly contaminated with the lower oligosaccharide, and the fifth fraction rich in the lower oligosaccharide; and recovering the third fraction. The second- and fourth fractions can be admitted to the column so as to decrease the amount of elution water and also to recover the high-oligoglucosylfructoside fraction in a much higher concentration and recovery yield.
摘要:
The invention provides a process for enabling the production of a particulate composition containing anhydrous crystalline ascorbic acid 2-glucoside that does not significantly cake even when the production yield of ascorbic acid 2-glucoside does not reach 35% by weight. The process for producing a particulate composition containing anhydrous crystalline ascorbic acid 2-glucoside, which comprises allowing a CGTase to act on a solution containing either liquefied starch or dextrin and L-ascorbic acid and then allowing a glucoamylase to act on the resulting solution to obtain a solution with an ascorbic acid 2-glucoside production yield of at least 27%, purifying the obtained solution to increase the ascorbic acid 2-glucoside content to a level of over 86% by weight, precipitating anhydrous crystalline ascorbic acid 2-glucoside by a controlled cooling method or pseudo-controlled cooling method, collecting the precipitated anhydrous crystalline ascorbic acid 2-glucoside, and ageing and drying the collected anhydrous crystalline ascorbic acid 2-glucoside.
摘要:
The present invention aims to provide a particulate composition containing anhydrous crystalline 2-O-α-D-glucosyl-L-ascorbic acid having a significantly, hardly solidifiable property compared to conventional ones in a grade for use in quasi-drugs; a process for producing the same; and uses thereof. The present invention solves the above object by providing a particulate composition containing anhydrous crystalline 2-O-α-D-glucosyl-L-ascorbic in an amount of over 98.0% by weight but less than 99.9% by weight, on a dry solid basis; or a degree of crystallinity of 90% or higher for anhydrous crystalline 2-O-α-D-glucosyl-L-ascorbic acid, when calculated based on a profile of powder X-ray diffraction analysis of the particulate composition, and a dynamic vapor sorption level of 0.01% by weight or lower, when kept at 25° C. under a relative humidity of 35% by weight for 12 hours after removal water in the particulate composition under nitrogen gas stream; and by providing a process for producing the same and uses thereof.
摘要:
The object of the present invention is to provide a powdery product comprising crystalline β-maltose monohydrate which is powderized by spray method, and has a high-solubility in aqueous solvents and a satisfactory handleability, and to its preparation and uses. The present invention solves the above object by establishing a powdery product comprising crystalline β-maltose monohydrate which comprises 7% (w/w) or more but less than 14% (w/w) α-anomeric maltose, and has a crystallinity of 62% or more but less than 72%; a process for producing thereof which comprises the steps of producing a massecuite from an aqueous maltose solution comprising 86% (w/w) or more but less than 93% (w/w) of maltose and 2% (w/w) or more of glucose, on a dry solid basis, powderizing by a spray method, keeping in a relatively low humidity and a relatively high temperature, and further keeping in a relatively high humidity- and a relatively low temperature-condition; and uses thereof for various compositions such as foods, cosmetics, and pharmaceuticals.
摘要:
Novel crystalline maltotetraosyl glucoside is obtained by crystallizing maltotetraosyl glucoside from a solution of maltotetraosyl glucoside, prepared by either exposing an aqueous solution of maltopentaose to the action of a non-reducing saccharide-forming enzyme or an aqueous solution which contains trehalose or a non-reducing saccharide to the action of cyclomaltodextrin glucanotransferase. The crystalline maltotetraosyl glucoside has non-hygroscopicity, non-reducibility, superior solubility, less fermentability, and other satisfactory properties of stabilizing oligopeptides and biologically-substances as well as preventing retrogradation of amylaceous substances. These features render the crystalline maltotetraosyl glucoside very useful in various compositions including foods, beverages, cosmetics, pharmaceuticals and shaped bodies.
摘要:
Disclosed is a non- or substantially non-crystalline high trehalose content syrup, which is supersaturated in trehalose and which further comprises another dissolved saccharide in an amount at least as much as the amount of trehalose. The saccharide acts to prevent crystallization of trehalose. The saccharide may be a reducing monosaccharide, a non-reducing monosaccharide or an oligosaccharide. The supersaturated trehalose solutions are free from bacterial contamination even at ambient temperature.
摘要:
A saccharide composition with a reduced reducibility which is prepared by hydrogenating a saccharide mixture comprising reducing saccharides and non-reducing saccharides consisting of trehalose and/or saccharides having a trehalose structure. The saccharide composition has a satisfactory sweetness, taste and stability, and is substantially free from reducibility, so that it can be freely used in a variety of compositions such as foods, cosmetics and pharmaceuticals which are susceptible to reduction.
摘要:
A hair restorer which comprises a carrier and an effective amount of one or more compounds selected from the group consisting of 3-[4-hydroxy-3,5-bis(3-methyl-2-butenyl)phenyl]-2-propenoic acid, benzenepropanoic acid 4-(2-carboxyethenyl)-2-(3-methyl-2-butenyl)phenylester, and their salts, in the treatment and prevention of alopecia.
摘要:
Disclosed are a novel desiccant containing a non-reducing anhydrous trehalose as an effective ingredient; a dehydration of hydrous matters, e.g. food products, pharmaceuticals and cosmetics, therewith; and dehydrated products obtained by the dehydration. Such hydrous matters are dehydrated without causing alteration or deterioration by incorporating anhydrous trehalose into the hydrous matters to convert the anhydrous trehalose into hydrous crystalline trehalose. The anhydrous trehalose are anhydrous crystalline trehalose and hydrous amorphous trehalose.