Bacteria TRIZ Cases

A primosome assembly protein variant enhances L-lysine production in Corynebacterium glutamicum.

Isolated Leuconostoc mesenteroides NTM048 boosts intestinal immunity by increasing IgA levels, addressing limited high-performing lactobacillus availability.

Applying electrical potential across fermentation broth drives electron transfer to carbon dioxide for conversion into ethanol.

Inactivating the NCgl1090 gene reduces aspartate consumption, thereby increasing L-lysine productivity to 50 g/l in Corynebacterium glutamicum.

Dried banana stalk fibers infused with dormant microorganisms absorb and digest petroleum products without chemical additives.

Chromosomal integration of modified Apx toxins creates a universal live attenuated vaccine strain.

Amino acid substitutions in the OxyR transcription regulator increase L-lysine secretion yield while maintaining microbial performance properties.

Foil desiccants and anhydrous ORS powder remove moisture to preserve freeze-dried lactic acid bacteria stability at 30°C.

Optimized promoter sequences for cysDNC and cysQ genes boost L-cysteine accumulation in culture media while managing genetic modification complexity.

A Serratia liquefaciens strain converts safrole into heliotropin via fermentation.

Enhanced NAD kinase activity and inactivated tehB enzyme balance ATP consumption to boost L-amino acid productivity.

NRRL 67118 strain prevents nitrite toxicity and lowers methane emissions.

Analyzing specific gut bacteria like Phascolarctobacterium levels resolves inter-individual variability in lifestyle intervention success.

Dynamic feed rate transition from exponential growth to constant or decreasing phases increases protein yield by up to 400% compared to control cultures.

An esterase-based chromogenic substrate differentiates Salmonella from Escherichia coli by targeting enzyme activity rather than lactose fermentation.

Lactobacillus plantarum CCFM1019 adsorbs DEHP and MEHP via cell walls, reducing serum levels by 54% without toxic side effects.

Bacillus subtilis FNFH_BS06 degrades glycinin and β-conglycinin, resolving anti-nutritional factors in soybean meal.

Lactobacillus paracasei SG96 strain produces bacteriocins to inhibit pathogenic bacteria in animal feed.

Kopi Luwak enterobacteria ferment green coffee beans to reduce caffeine by 88 percent while increasing gamma-aminobutyric acid tenfold for improved taste.

Metatranscriptomic analysis captures dynamic gene expression to resolve contradictions between taxonomic classification and functional deviation identification.

Replace animal sera with synthetic amino acids and use anion exchange chromatography to eliminate prion contamination risks.

Mutating lpdA at T81, P275, A358 reduces NADH inhibition sensitivity, enabling stable pyruvate dehydrogenase activity under anaerobic fermentation.

Culturing Serratia microorganisms in optimized media drives enzymatic reduction of 3-oxoadipic acid to generate 3-hydroxyadipic acid.

Density gradient centrifugation isolates microbes while iodixanol prevents ice damage, maintaining viability for long-term storage.

A bacterial host cell maintains plasmid stability through a third alanine racemase gene expression cassette.

Microbial enzymes reduce SO2 concentration from 5000 ppm to 1200 ppm while shortening steeping time from 48 hours to 30 hours.

A flow cytometric method using double staining with cFDA and propidium iodide to differentiate live Bacillus coagulans spores from damaged cells.

A modified microorganism accumulates target compounds by regulating gene expression through inducible promoters.

Engineering Corynebacterium to weaken NCgl0101 removes metabolic interference, enabling high-yield putrescine biosynthesis without toxic chemical synthesis.

A probiotic composition containing Bacteroides bacteria alters the gut microbiome to promote weight loss.

An adsorption tower packed with a specific adsorbent separates fermentation products from bacterial cells and raw materials in the culture solution.

Soluble formate salt sustains microorganism viability during syngas interruptions by generating carbon dioxide to maintain redox potential and pH conditions.

Lactobacillus pentosus TUA4337L strain multiplies in the small intestine to block fat absorption and manage weight.

Bacillus sp. strain RP1137 aggregates algae into settleable clumps, while a Bacillus-magnetite conjugate enables magnetic separation of the biomass.

A host-vector system uses ColE1 RNA I to down-regulate marker genes for antibiotic-free plasmid selection.

Rhizomucor-derived endo-β-N-acetylglucosaminidase resolves solubility contradictions by enabling stable high-temperature hydrolysis in E. coli systems.

Bacterial enzymes convert methylated flavonoid precursors into bioactive phytoestrogens, resolving low natural concentration in hop extracts.

Engineered microbial cultures convert synthesis gases into alkyl alcohols.

Specific Lactobacillus strains mitigate oxidative stress damage by producing catalase and superoxide dismutase enzymes.

Recombinant microorganisms metabolize sucrose using introduced phosphotransferase and hydrolase genes, replacing expensive glucose to reduce production costs.

Secondary fermentation generates exopolysaccharides to replace xanthan gum, resolving the trade-off between ingredient simplicity and product stability.

Engineered McrA protein variants bind specifically to methylated cytosine sites, eliminating false positives from incomplete restriction digestion.

Gamma-cyclodextrin fermentation delays sporulation in mutant strains to extend production periods and increase bio-product titers.

A biotrickling filter treats sulfur oxidizing microorganisms with an aqueous suspension to produce sulfuric acid efficiently.

Recombinant microorganisms bypass slow RuBisCO kinetics by introducing a formate dehydrogenase pathway that converts formate to cellular building blocks.

Modified GDF15 muteins lower plasma glucose levels while minimizing adverse effects associated with current obesity treatments.