Abstract
In order to improve the utilization value of sweet corn cobs, we extracted a new non-starch polysaccharide from sweet corn cobs and named it SCP-80-I. It showed that SCP-80-I was a neutral homogeneous polysaccharide composed of glucose with a molecular weight of 175.453 kDa. We also explore the structural features of SCP-80-I and we found that it possessed a backbone of →4-Glc-1 → 4-Glc-1 → 4,6-Glc-1 → 4-Glc-1→, and the branched chain was →6-Glc-1 → linked to the main chain through O-6 of →4,6-Glc-1→. We predicted that SCP-80-I may have a function of antioxidation and hypoglycemic due to its structure. This study provides some reference value for sweet corn cob polysaccharides in the creation of functional food. Novelty impact statement A new non-starch polysaccharide from sweet corn cobs (SCP-80-I) was obtained. SCP-80-I was composed of glucose with a molecular weight of 175.453 kDa. The backbone of SCP-80-I was →4-Glc-1 → 4-Glc-1 → 4,6-Glc-1 → 4-Glc-1 →.
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