食品工业科技2024，Vol.45Issue(6)：100-109,10.DOI:10.13386/j.issn1002-0306.2023060222
羟丙基双淀粉磷酸酯糊液的屈服应力及触变性研究
Study on Yield Stress and Thixotropy of Hydroxypropyl Distarch Phosphate Paste
摘要
Abstract
In order to study the yield stress and thixotropic behavior of the hydroxypropyl distarch phosphate(HPDSP)paste,HPDSP respectively derived from corn starch(CS)and waxy corn starch(WS)with different ratios of amylopectin were investigated.The critical mass fractions,yield stress,and thixotropic behavior of HPDSP pastes under various temperatures were studied.The results showed that,the critical mass fractions for the transition of the HPDSP solution at 5℃ from dilute to semi-dilute,and from semi-dilute to concentrated were 3wt%and 6wt%,respectively.The yield stress of 5wt%corn starch-hydroxypropyl distarch phosphate(CS-HPDSP)and waxy corn starch-hydroxypropyl distarch phosphate(WS-HPDSP)paste both showed weak correlations with temperature.However,at 6wt%concentration,the yield stress significantly decreased(P<0.05)by 69.52%and 77.95%respectively at 85℃.Additionally,the thixotropic behavior of HPDSP was influenced by both mass fraction and temperature.At 5℃,5wt%CS-HPDSP and WS-HPDSP showed limited thixotropy,while at 6wt%of mass fraction,the areas of thixotropic loops of CS-HPDSP and WS-HPDSP were 163.49 and 85.00 Pa/s,respectively,and decreased by 86.38%and 92.18%at 85℃,respectively.WS-HPDSP exhibited less thixotropic behavior than CS-HPDSP,and showed better stability in three interval thixotropy test(3iTT).In conclusion,WS-HPDSP showed less yield stress and thixotropy compared with CS-HPDSP.This study provides theoretical supports for practical application of HPDSP as thickening agents in food products.关键词
玉米淀粉/羟丙基双淀粉磷酸酯/流变学/屈服应力/触变性Key words
corn starch/hydroxypropyl distarch phosphate(HPDSP)/rheology/yield stress/thixotropy分类
轻工纺织引用本文复制引用
詹苑丽,王凯,曹潇,张书艳,陈思谦,朱杰..羟丙基双淀粉磷酸酯糊液的屈服应力及触变性研究[J].食品工业科技,2024,45(6):100-109,10.基金项目
广东省基础与应用基础研究基金项目(2022A1515140072). （2022A1515140072）
