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Updated: Aug 23, 2026

A Method for Adapting Euglena gracilis to Cassava-Based Substrates for Heterotrophic Cultivation
Published on: June 12, 2026
Growth responses of Cassia obtusifolia toward human intestinal bacteria
Bo-Kyung Sung1, Moo-Key Kim, Wang-Hyu Lee
1Institute of Bio-Safety Research and Institute of Agricultural Science and Technology, College of Agriculture, Chonbuk National University, Chonju 561-756, South Korea.
Abstract:
1,2-Dihydroxyanthraquinone (1) was isolated from the seed of Cassia obtusifolia through bioassay-guided fractionation. 1,2-Dihydroxyanthraquinone strongly inhibited the growth of Clostridium perfringens and Escherichia coli. Structure-activity relationship revealed that 1,4-dihydroxyanthraquinone (2) and 1,8-dihydroxyanthraquinone (3) had strong growth-inhibition against C. perfringens. In growth-promoting activity, 1,2-, 1,4-, and 1,8-dihydroxyanthraquinones exhibited strong growth-promoting activity to Bifidobacterium bifidum.
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