Abstract:
Processes for preparing crosslinker-free, chitosan-containing compositions, comprising: (a) providing an aqueous mixture of a chitosan, wherein the aqueous mixture has a viscosity of from 1,000 mPas to 100,000 mPas; (b) combining a precipitant with the aqueous mixture to form a crosslinker-free chitosan composition; and (c) drying the crosslinker-free chitosan composition to form a crosslinker-free three-dimensional structure; are described. Also described are three-dimensional structures prepared thereby and uses therefor in cosmetics, food additives and medical products
Abstract:
A process for making synthetic triglycerides involving: (a) providing a reaction component selected from the group consisting of glycerol, a triglyceride, and mixtures thereof; (b) providing a fatty acid mixture containing at least 50% by weight, based on the weight of the fatty acid mixture, of conjugated linoleic acid; (c) providing an inert gas atmosphere; (d) combining the reaction component with the fatty acid mixture, in the inert atmosphere, to form a reaction mixture; and (e) heating the reaction mixture to a temperature of from 180 to 240° C., at a heating rate of from 0.5 to 3 K per minute, thus forming the synthetic triglyceride.
Abstract:
A process for enriching and separating polyunsaturated fatty acid (PUFA) acyl groups in a fatty acid mixture, which mixture contains other non-PUFA fatty acid acyl groups, is disclosed.
Abstract:
Wheat protein hydrolyzates are produced by hydrolyzing a wheat protein-containing starting material, preferably a wheat protein isolate having a protein content of 70 to 90%, with a proteinase such as a serine protease at a pH of 2 to 5, then with a proteinase at a pH of 8 to 10 and finally with a peptidase at a pH of 6 to 7. The hydrolysis steps are preferably at a temperature below the gelatinization temperature of carbohydrate present in the protein. Each hydrolysis may be carried out for 1 to 24 hours at a temperature of 40 to 70.degree. C. To reduce traces of unwanted color formers, an adsorbent such as silica gel, aluminum oxide or activated carbon may be present during the hydrolysis steps. Aqueous wheat protein hydrolyzate solutions are obtained and, if required, may be concentrated, for example using falling film evaporators. The hydrolyzates have an average molecular weight in the range of 100 to 30,000, preferably 2,000 to 5,000, and a solids content of around 5 to 50%. The hydrolyzates may be condensed with a fatty acid or a fatty acid chloride containing 6 to 22 carbons such as lauric acid or coconut oil fatty acid to produce light-colored, storage-stable derivatives.
Abstract:
Described is the chemical hydrolysis of partial hydrolysates obtained by the enzymatic decomposition, in aqueous conditions in the presence of alkaline-earth oxides or hydroxides, of protein-containing raw materials containing chromium. This enables protein hydrolysates with a particularly low chromium content to be obtained which are stable to turbidity during storage. The chemical hydrolysis must be carried out in the presence of compounds selected from the alkaline-earth oxides and hydroxides, and within the critical pH range of 11 to 13.
Abstract:
The invention relates to particles with a coreshell structure, the core containing an oil or fat and the shell containing a second fat. The invention also relates to the use of the particles according to the invention for the production of foods and to a process for the production of a food comprising contacting the particles according to the invention with other constituents of the food and to a food containing the particles according to the invention.
Abstract:
A process for enriching and separating polyunsaturated fatty acid (PUFA) acyl groups in a fatty acid mixture, which mixture contains other non-PUFA fatty acid acyl groups, is disclosed.
Abstract:
A mixture containing fatty acid glycerides which has a high percentage content of PUFA acyl groups and a low percentage content of saturated fatty acid acyl groups is described. A process which enables the PUFA acyl groups in a mixture containing fatty acid glycerides (for example a fish oil) to be enriched and, at the same time, the content of saturated fatty acid acyl groups to be maintained at a low content is described. The process is a hydrolytic process or an alcoholysis in which the fatty acid acyl groups to be enriched are hydrolytically or alcoholytically released from the fatty acid glycerides slowly, if at all, the process being carried out in the presence of a lipase.
Abstract:
The use of tocopherol mixtures for stabilizing carotinoid-containing biomasses and biomass preparations, more particularly astaxanthin-containing biomasses and biomass preparations, and to a process for stabilizing such biomasses and biomass preparations. The tocopherol mixture used preferably contains α- and β- and γ- and δ-tocopherol. The invention also relates to carotinoid-containing biomass containing 0.1 to 10% by weight of tocopherol mixtures, based on the weight of the dry biomass.