Compound 30n has demonstrated potent antibacterial activity against a panel of Gram-positive microbial strains including MRSA, MRSE, and LNZ and vancomycin resistant strains of E. faecalis.
Various CBM methods focus on different types of genetic manipulations that can be performed by engineering microbial strains, including gene knockouts (OptKnock and RobustKnock), gene additions (OptStrain), and up- and down-regulation of metabolic enzymes (OptReg and OptForce) [20], [21], [22], [23], [24].
The antimicrobial compounds from plants may inhibit bacterial growth by different mechanisms than those presently used antimicrobials, and could therefore be of clinical value in the treatment of resistant microbial strains, including H. pylori [ 25].
Nine different engineered microbial strains (including Saccharomyces cerevisiae strains, Scheffersomyces (Pichia) stipitis strains, Zymomonas mobilis 8b, and Escherichia coli KO11) were tested under RaBIT platform fermentations to determine their suitability for this platform.
Metabolic engineering has been widely applied in modifying metabolic pathways to improve the properties of microbial strains, including manipulation of enzyme levels through the amplification, disruption, or addition of a metabolic pathway [ 1].
To determine the automated test's level of functionality, we validated the correct identification of different microbial strains included on the SeptiFast® target master list.
Microbial cell preparation composed of six viable freeze dried microorganism strains including Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus lactis, Bifidobacterium bifidum, Bifidobacterium longum and Bifidobacterium infantis with a daily dose of 6 × 10 (Hexbio® B-Crobes Laboratory Sdn Bhd. Ipoh; Malaysia).
To improve lignocellulolytic enzyme activity, a series of synergistic microbial consortia of increasing diversity and complexity were devised using fungal strains, including Trichoderma reesei, Penicillium decumbens, Aspergillus tubingensis, and Aspergillus niger.
Four Lactobacillus strains including Lactobacillus casei subsp-1608 ATCC 39392, Lactobacillus plantarum-1058 ATCC 8014, Lactobacillus acidophilus-1643 DSM 20079 and Lactobacillus reuteri-1655 DSM 20016 were used for microbial processing of RW.
Recently we screened a large number of microbial strains for this reaction, including yeasts (Candida parapsilosis CCTCC M203011, Rhodotorula sp. AS2.2241, Candida tropicalis, Saccharomyces cerevisiae, Trigonopsis variabilis), bacteria (Lactobacillus brevis, Bacterium anthracoides) and a mold (Geotrichum candidum) [ 10].
Such an endeavor requires a large number of prerequisites to be realized, including engineering microbial strains with high cellulolytic activity, high product yield, productivities, and titers, ability to use many carbon sources, and resistance to toxic compounds released during the pretreatment of lignocellulosic biomass.
