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Comparison of the physicochemical and functional properties of Aconitum carmichaeli and Aconiti lateralis Preparata starches

Authors Xia, Yuzhuo; Gao, Wenyuan; Jiang, Qianqian; Li, Xia; Huang, Luqi; Xiao, Peigen

Journal STARCH-STARKE , DEC 2011,12:63

DOI 10.1002/star.201100062

Abstract Aconitum, an important toxic traditional Chinese medicine, has been widely used in clinical practice. Owing to its toxicity, it should be processed before application. Aconiti lateralis Preparata (ALP) is one of the most important commercial processed products of Aconitum. The object of this work is to study the physicochemical and functional properties of Aconitum and ALP starches. The results revealed that AM content changed, transforming from 37.5 to 27.5% after processing. The shape of Aconitum starch granules also changed from spherical or oval with sizes of 515 mu m to irregular and polygonal with sizes of 3060 mu m. The crystallinity of Aconitum decreased from 38.7 to 23.0% after processing. The transition temperatures (To, Tp and Tc) and enthalpy of gelatinization (Delta Hgel) were determined using DSC. To, Tp and Tc decreased from 52.9 to 48.6, 66.9 to 58.9, and 82.2 to 69.3 degrees C, respectively. Aconitum starch showed higher Delta Hgel values (1.6J/g), while the ALP starch showed lower values (0.4J/g).

Species covered 乌头 Aconitum carmichaeli