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What is molecular weight?

April 26, 2017Molecular weight

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What is molecular weight?

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Molecular weight(MW) is a measure of the size of beta-glucan polysaccharides and is expressed in units called kiloDaltons(kDa). Large polysaccharides have a high MW. The “native” beta-glucans present in whole grains tend to have a higher MW (up to 5400 kDa) (26), than the beta-glucans in foods as food preparation breaks down large beta-glucans. In foods, beta-glucans of less than 150 kDa are commonly found (7).