摘要:
A well tasting and organoleptically acceptable vegetable protein hydrolyzate such as soy, pea or rice protein hydrolyzate is produced in high yield by a method using a combination of non-pH-stat hydrolysis and ultrafiltration. Preferably, the method is carried out by mixing a material containing at least 65% vegetable protein as dry matter and water to form a slurry containing a vegetable protein content of about 7-20%, heating the slurry to above 60.degree. C., adjusting the pH of the slurry to about 8.5, hydrolyzing the slurry with at least two different proteases to a degree of hydrolysis of between 15 and 35% without adjusting the pH during hydrolysis to produce a hydrolyzed slurry, inactivating the proteases and separating the hydrolyzed slurry with an ultrafiltration unit having a cut-off value above 5,000 to form a permeate containing the vegetable protein hydrolyzate. One protease may be obtained from B. Licheniformis and the other from B. Subtilis. The hydrolyzed slurry or the permeate may be treated with activated carbon, and the permeate may be concentrated by nanofiltration and/or by evaporation.
摘要:
A method is disclosed for obtaining limited specific hydrolysis of proteins using a Glu/Asp specific protease to produce peptides with C-terminal Glu or Asp. The protease is obtained from Bacillus licheniformis, has a mass of about 23,600, is inhibited by diisopropyl fluoride but not by phenylmethane sulfonylfluoride, and has a pH of maximal activity between 6.5 and 10.0. The proteins are treated with the protease at neutral pH and the reaction terminated by raising the temperature above 70.degree. C. or lowering the pH below 5.0 to obtain the hydrolysate. The process may include a second protease which is specific for Arg/Lys, and produces peptides with C-terminal Arg or Lys.
摘要:
A well tasting and organoleptically acceptable whey protein hydrolyzate is produced in high yield by a method using a combination of non-pH-stat hydrolysis and ultrafiltration. Preferably, the method is carried out by mixing a material containing at least 65% whey protein as dry matter and water to form a slurry containing a whey protein content of about 7-20%, heating the slurry to above 600.degree. C., adjusting the pH of the slurry to about 8, hydrolyzing the slurry with at least two different proteases to a degree of hydrolysis of between 17 and 35% without adjusting the pH during hydrolysis to produce a hydrolyzed slurry, inactivating the proteases and separating the hydrolyzed slurry with an ultrafiltration unit having a cut-off value above 10,000 to form a permeate containing the whey protein hydrolyzate. One protease may be obtained from B. Licheniformis and the other from B. Subtilis. The hydrolyzed slurry or the permeate may be treated with activated carbon, and the permeate may be concentrated by nanofiltration and/or by evaporation.
摘要:
An enteral diet composition which comprises a balanced diet aqueous medium mixture of fat, carbohydrate, and dietary nitrogen compounds characterized by a total energy content of at least about 0.68 kcal/ml, an osmolality of below about 350 milli-osmol and a pH lower than about 4.5. The dietary nitrogen compounds are at least about 95% soluble in the aqueous medium and are free from bitterness in the composition. At least about 50% of the dietary nitrogen compounds is derived from vegetable protein source(s).The enteral diet product exhibits a combination of advantageous characteristics, i.e., good microbiological stability, good physical stability of the emulsion, low osmolality, satisfactory organoleptic properties, and satisfactory nutritional and handling properties.
摘要:
The present invention relates to a pea protein hydrolyzate with very high purity and with organoleptic properties. The present invention also relates to a method for producing said pea protein hydrolyzate.
摘要:
An improved cheese coating composition comprising specifically defined acetic acid esters of monoglycerides of long-chain fatty acids predominantly comprising stearic acid and behenic acid and a method for producing protective coatings on cheese, as well as a body of cheese bearing on its surface a coating of the improved coating composition.