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[1] [2] Examples include cystine from hydrolysis of hair, [3] tryptophan from casein, [4] histidine from red blood cells, [5] and arginine from gelatin. [6] Common hydrolyzed products used in food are hydrolyzed vegetable protein and yeast extract, which are used as flavor enhancers because the hydrolysis of the protein produces free glutamic ...
Food technologists have long known that protein hydrolysis produces a meat bouillon-like odor and taste. [1] Hydrolysates have been a part of the human diet for centuries, notably in the form of fermented soy sauce, or Shoyu. Shoyu, traditionally made from wheat and soy protein, has been produced in Japan for over 1,500 years, following its ...
Acid–base-catalysed hydrolyses are very common; one example is the hydrolysis of amides or esters. Their hydrolysis occurs when the nucleophile (a nucleus-seeking agent, e.g., water or hydroxyl ion) attacks the carbon of the carbonyl group of the ester or amide. In an aqueous base, hydroxyl ions are better nucleophiles than polar molecules ...
Amylase is present in the saliva of humans and some other mammals, where it begins the chemical process of digestion. Foods that contain large amounts of starch but little sugar, such as rice and potatoes , may acquire a slightly sweet taste as they are chewed because amylase degrades some of their starch into sugar.
In humans, the C-type lysozyme enzyme is encoded by the LYZ gene. [3] [4] Hen egg white lysozyme is thermally stable, with a melting point reaching up to 72 °C at pH 5.0. [5] However, lysozyme in human milk loses activity very quickly at that temperature. [6] Hen egg white lysozyme maintains its activity in a large range of pH (6–9). [7]
For example, human pancreatic lipase (HPL), [5] converts triglyceride substrates found in ingested oils to monoglycerides and two fatty acids. A diverse array of genetically distinct lipase enzymes are found in nature, and they represent several types of protein folds and catalytic mechanisms.
α-Amylase is an enzyme (EC 3.2.1.1; systematic name 4-α-D-glucan glucanohydrolase) that hydrolyses α bonds of large, α-linked polysaccharides, such as starch and glycogen, yielding shorter chains thereof, dextrins, and maltose, through the following biochemical process: [2]
Maltase is an informal name for a family of enzymes that catalyze the hydrolysis of disaccharide maltose into two simple sugars of glucose. Maltases are found in plants, bacteria, yeast, humans, and other vertebrates. Digestion of starch requires six intestinal enzymes. Two of these enzymes are luminal endo-glucosidases named alpha-amylases.