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Antioxidant activity of a flavonoid-rich extract of Hypericum perforatum L. in vitro.
The antioxidant mechanism of FEHP might be attributed to its free radical scavenging activity, metal-chelation activity, and reactive oxygen quenching activity, which suggested that chelation of metal ion was the main antioxidant action.
Microbial production of 2,3-butanediol by a surfactant (serrawettin)-deficient mutant of Serratia marcescens H30
The shake flask and batch experiments suggested that disruption of the swrW gene led to significant reduction of the foam formation and improved 2,3-BD production a little.
Phytochemical profiles of different mulberry (Morus sp.) species from China.
The high contents of functional compounds in mulberry juice, fruits, and leaves implied that they might be potential resources for the development of functional drinks and food.
Unraveling and engineering the production of 23,24-bisnorcholenic steroids in sterol metabolism
Two competing pathways, the AD and HBC pathways, were proposed for the side-chain degradation of sterols in mycobacteria, and the proposed HBC pathway has great value in illustrating the production mechanism of HBCs in sterol catabolism and in developingHBCs producing strains for industrial application via metabolic engineering.
Inactivation and Augmentation of the Primary 3-Ketosteroid-Δ1- Dehydrogenase in Mycobacterium neoaurum NwIB-01: Biotransformation of Soybean Phytosterols to 4-Androstene- 3,17-Dione or
Mutants in which KsdDM was inactivated or augmented proved to be good AD(D)-producing strains, and this problem was tackled via genetic manipulation of the KsdD-encoding gene.