Analysis of speciation distribution of Se in mungbean during enzymatic hydrolization

ANYL 69

Xiuxia Chen, zhangbin327@126.com, Guowen Zhang, zhangbin327@126.com, and Jihua Li, woaikexue@126.com. Nanchang University the Key Laboratory of Food Science , Ministry of Education, Nanchang.China, nanchang, 330047, China
In this paper, Selenium content and its speciation distribution in mungbean during enzymatic hydrolization were investigated with AFS-230E atom fluorescence photometer. The results showed: (1) Selenium content in mungbean was 54.79ìg•g-1 (of dry matter). (2) Over 90 % Selenium in mungbean was extracted by enzymatic treatment, but only 19.26 % Selenium came out in water when only treated by hot water. The high Selenium extraction rate was owed to protease firstly and amylase secondly and cellulase lastly. (3) The distribution coefficients of Selenium in organic form were about 60 % and 3.64 % in total enzymatic product and mungbean soup, respectively. The recovery for the method is 97.8 % and R.S.D is 1.1 % ( n = 11 ).
 

General Posters
7:00 PM-9:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Analytical Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007