Maltotriose is composed of three glucose molecules linked by α-1,4 glycosidic bonds, which is an intermediate product in the digestion process of starch. In the small intestine, maltotriose is hydrolyzed by maltase into glucose, which is then absorbed by intestinal cells and enters the blood circulation to provide energy to body cells. Compared with other carbohydrates, maltotriose is digested and absorbed slowly, resulting in a slower rise in blood sugar, which is especially beneficial for diabetics or people who need to control blood sugar. In addition, maltotriose in the colon can become a preferential nutrient source for certain probiotics (for example lactic acid bacteria) in the intestine, which helps maintain the balance and health of the intestinal microbiota.
Fig.1 The structure of maltotriose. (Wikipedia)
Fig.2 Maltotriose analysis service. (CD BioGlyco)
Paper Title: Characterisation of brewpub beer carbohydrates using high-performance anion exchange chromatography coupled with pulsed amperometric detection
Journal: Food Chemistry
Results: The HPAEC-PAD method was applied in the determination of maltotriose and other carbohydrates. The sample does not need to be pretreated before injection, and the above-mentioned oligosaccharides were determined in a short time under the condition of gradient elution and a single chromatographic run. The results showed that all compounds had good linearity under the current separation conditions (Fig.3), and the accuracy and repeatability of the method were good, which confirmed that HPAEC-PAD is a very sensitive technique for carbohydrate analysis.
Fig.3 Chromatogram of a commercial beer. (Arfelli & Sartini, 2014)
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