College of Food Science, South China Agricultural University, Guangzhou 510642, China;
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
College of Food Science, South China Agricultural University, Guangzhou 510642, China;
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
konjac glucomannan; single chain; molecular dynamics; degree of polymerization; acetyl; molecular acting force;