Screening macroporous resins for purification of inhibitory substances against aflatoxin production

Author

Wang Zhuo ; Yan Pei-sheng ; Cao Li-xin ; Zhang Bing-Zhao

Author_Institution

Sch. of the Ocean, Harbin Inst. of Technol. at WeiHai, Weihai, China

fYear

2011

fDate

19-22 Aug. 2011

Firstpage

457

Lastpage

459

Abstract

In this paper, 26 kinds of macroporous resins were screened for their abilities to absorb inhibitory substances against aflatoxin biosynthesis from the fermentation supernatant of Bacillus subtilis Hitwh-B05. DM130 resin was chosen as the best according to its higher adsorption capacities for inhibitory substances but less for pigments than the other 25 resins. Its adsorption capacities of inhibitory substances calculated by the inhibition of NA formation and mycelium growth were 1.6582 and 1.1195 respectively, while the adsorption capacity of pigments was 0.2394. The selected macroporous resin will facilitate the purification of aflatoxin inhibitory substances from bacterial fermentation broth which could be used in biocontrol of aflatoxin contamination in foods effectively in the near future.

Keywords

adsorption; biochemistry; biocontrol; cellular biophysics; fermentation; microorganisms; porous materials; resins; DM130 resin; adsorption capacities; aflatoxin biosynthesis; aflatoxin contamination; aflatoxin inhibitory substances; aflatoxin production; bacillus subtilis Hitwh-B05; bacterial fermentation broth; biocontrol; fermentation supernatant; mycelium growth; screening macroporous resins; Contamination; Microorganisms; Pigments; Production; Purification; Resins; Strain; aflatoxin; bioactive metabolites; food safety; macroporous adsorptive resins;

fLanguage

English

Publisher

ieee

Conference_Titel

Human Health and Biomedical Engineering (HHBE), 2011 International Conference on

Conference_Location

Jilin

Print_ISBN

978-1-61284-723-8

Type

conf

DOI

10.1109/HHBE.2011.6028030

Filename

6028030