State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
Carbohydr Polym. 2022 Mar 1;279:119012. doi: 10.1016/j.carbpol.2021.119012. Epub 2021 Dec 15.
The relationship between linear chain length distributions and the functional properties of the starch-based films after pullulanase debranching treatment of corn (CS), rice (RS) and wheat (WS) were investigated. The results indicated that the film thickness was negatively correlated with A chains content (r = -0.939) and apparent amylose content (r = -0.926), and was positively correlated with B3 chains content (r = 0.847). The tensile strength of the debranched starch-based films were positively correlated with apparent amylose content (r = 0.813), and the elongation at break were inversely proportional to B3 chains content (r = -0.817). The hydrophobicity of the starch-based films was positively and negatively correlated with the proportions of linear chains with DP 6-12 (r = 0.892) and DP 25-36 (r = -0.863), respectively. On the contrary, no significant correlation was noticed between chain length distribution of amylopectin and transparency and thermal stability.
研究了普鲁兰酶解支处理后玉米（CS）、大米（RS）和小麦（WS）淀粉基薄膜的线性链长分布与功能特性之间的关系。结果表明，薄膜厚度与 A 链含量（r=-0.939）和表观直链淀粉含量（r=-0.926）呈负相关，与 B3 链含量（r=0.847）呈正相关。解支淀粉基薄膜的拉伸强度与表观直链淀粉含量呈正相关（r=0.813），断裂伸长率与 B3 链含量呈反比（r=-0.817）。淀粉基薄膜的疏水性与 DP 6-12（r=0.892）和 DP 25-36（r=-0.863）的线性链比例呈正相关和负相关。相反，支链淀粉的链长分布与透明度和热稳定性之间没有显著相关性。
