Preparation of a novel expandable konjac fiber at different freezing temperatures and exploration of its digestion regulation functions

文献情報

出版日 2023-11-16
DOI 10.1039/D3FO03814A
インパクトファクター 5.396
著者

Longchen Shang



要旨

A new form of konjac fiber was successfully prepared, and it could instantaneously expand when in contact with the digestive fluid. The expanded konjac fiber could inhibit the digestion of the ingested food by competing with the substrate for digestive enzymes and space. The konjac fiber with desirable physical properties was obtained at 4 different freezing temperatures (−20 °C, −40 °C, −80 °C, and −196 °C), and the digestion regulation mechanisms of these fibers were systematically explored. The results showed that the konjac fiber prepared at −20 °C displayed an outstanding performance in delaying gastric emptying and preventing intestinal starch hydrolysis, while the fiber prepared under liquid nitrogen conditions (−196 °C) showed the weakest digestion regulation ability. However, the digestion regulation ability of this novel fiber was highly related to the food rheological property, and it exhibited a stronger interference effect on high-viscosity food. Our novel konjac fibers exhibited a great digestion regulation potential. Our findings provide valuable references for the development of dietary fiber-based satiety-enhancing functional foods.

掲載誌

Food & Function

Food & Function
CiteScore: 10.1
自己引用率: 3.9%
年間論文数: 758

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