Equine α–amylase: does it limit starch digestion in the small intestine of the horse?
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منابع مشابه
Starch Digestion in the Horse
The rate and extent of starch digestion is determined by: 1. properties of the starch granule; 2. the effect of processing; 3. associated food structures (plant cell walls); 4. transit time through the small intestine; 5. the availability and concentration of enzymes. These factors will affect the glycemic response of the horse to feeding and the subsequent production of insulin. Resistant star...
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For starch digestion to glucose, two luminal α-amylases and four gut mucosal α-glucosidase subunits are employed. The aim of this research was to investigate, for the first time, direct digestion capability of individual mucosal α-glucosidases on cooked (gelatinized) starch. Gelatinized normal maize starch was digested with N- and C-terminal subunits of recombinant mammalian maltase-glucoamylas...
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BACKGROUND The proportion of starch disappearing from the small intestinal lumen is generally lower in ruminants than in monogastric animals, and there are indications that the starch digestion capacity in ruminants is limited. OBJECTIVES Milk-fed calves were used to study the rate-limiting enzyme in starch hydrolysis and to quantify starch fermentation in ruminants. METHODS Forty male Hols...
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Starch digestion in the human body is typically viewed in a sequential manner beginning with α-amylase and followed by α-glucosidase to produce glucose. This report indicates that the two enzyme types can act synergistically to digest granular starch structure. The aim of this study was to investigate how the mucosal α-glucosidases act with α-amylase to digest granular starch. Two types of enzy...
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There has been lot of interest in different kinds of rate constant which characterizes different enzymes [1-5]. Most enzymes studied may be described as industrial enzymes because of commercial objectives, which include production of industrial fuels, bioethanol [6-8], production of bulking agent, water retention agent, thickeners etc [4]. Some of the products are highly important in a wide ran...
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