Effect of aluminum stress on the quality of Enteromorpha prolifera based on SEM-EDX and FT-IR  

作　　者：Liping Zhou Ye Wang Yongjiang Lou Haitao Shao Yongyong Li 周丽萍;王晔;娄永江;邵海涛;李勇勇(College of Food and Pharmaceutical Sciences,Ningbo University,Ningbo,China)

机构地区：[1]College of Food and Pharmaceutical Sciences,Ningbo University,Ningbo,China

出　　处：《Food Quality and Safety》2021年第1期76-82,共7页食品品质与安全研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.31701516).

摘　　要：To clarify the effect of aluminum stress on the quality of Enteromorpha prolifera(E.prolifera)and to explore the mechanism of the combination of aluminum and E.prolifera,we analyzed changes in the nutrients,micromorphology,element distribution,and spectrum of E.prolifera treated with different concentrations of aluminum(0,0.2,2.0,and 20.0μmol· L^(-1))using scanning electron microscopy-energy dispersive spectroscopy(SEM-EDX)and Fourier-transform infrared spectroscopy(FT-IR).The biomass,protein,dietary fiber,and ash contents of E.prolifera initially increased and then subsequently decreased with an increasing concentration of aluminum.Meanwhile,the total amount of amino acids decreased.Scanning the surface of E.prolifera by SEM-EDX revealed that a high concentration of aluminum damaged the cells of E.prolifera.Additionally,the content of aluminum on the surface of E.prolifera cells increased and the absorption of other elements was also affected.The FT-IR analysis showed that aluminum might combine with the functional groups at the 3408 cm^(-)1,2928 cm1,and 1072 cm^(-)1 peaks in E.prolifera and alter the characteristic of the different absorption peaks.

关 键 词：Enteromorpha prolifera aluminum stress scanning electron microscopy-energy dispersive spectroscopy Fourier-transform infrared spectroscopy 

分 类 号：O65[理学—分析化学]