Bacteria TRIZ Cases

Methionine-loaded biochar activates Clostridium bacteria to methylate arsenic while inhibiting methane emissions in contaminated soils.

DNA vaccine encoding consensus HBV antigens elicits broad immunity against variable genotypes while lowering production costs.

Replacing natural promoters with strong constitutive variants increases MK-7 yield by 3.53 times, overcoming insufficient metabolic flux in wild-type strains.

Switching ketol-acid reductoisomerase to NADH dependence resolves the contradiction between limited aerobic yields and anaerobic production failure.

Recombinant microorganisms utilize a reverse glyoxylate shunt to synthesize glycolic acid and glycine via enzymatic carbon fixation.

HMX4369BS sweet corn hybrid resolves yield versus quality trade-offs by integrating disease resistance genes.

A Clostridium beijerinckii strain enables butanol production under facultative anaerobic conditions.

Multi-well assay identifies bacteria binding gold and silver via surface chelation, replacing cyanide leaching to reduce environmental harm.

Recombinant microorganisms ferment carbon monoxide to synthesize terpenes via engineered metabolic pathways.

Lactobacillus hilgardii strains reduce dry matter loss by inhibiting secondary fermentation and heating onset in high dry matter silages.

Recombinant cyanobacteria thrive in saline environments using engineered halotolerance genes for sustainable biofuel production.

Genetically engineered Lactobacillus strains overcome butanol toxicity to enable high-titer bioproduction of alcohols.

Overexpressing purC, purKE, and prs genes in Corynebacterium ammoniagenes resolves the trade-off between strain construction complexity and production yield.

Genetically engineered C1-fixing microorganisms co-produce nanobodies and target chemicals from gaseous substrates.

Spray drying Gram-negative bacteria with polyether compounds reduces water activity, resolving storage stability issues and eliminating refrigeration needs.

Lactobacillus paracasei MCC1849 maintains immunostimulatory activity despite cell wall-digesting enzymes and RNases in the human body.

Methylation protects plasmid DNA from restriction, enabling efficient Bifidobacterium transformation despite low baseline efficiency.

Cholinium lysinate aqueous solvents depolymerize PET and PLA mixtures into monomers, overcoming contamination issues in traditional mechanical separation.

Segmenting Aleuria aurantia lectin into monovalent peptides eliminates agglutination, ensuring linear diagnostic relationships.

Beta-lactamase and fluorescent protein reversion reporters quantify mutagenesis, replacing labor-intensive visual screening with automated fluorescence signals.

Protease digestion segments kinases into specific peptides for targeted phosphopeptide enrichment, resolving sensitivity limits in kinase activity monitoring.

Optimized lactic, acetic, and butyric acid concentrations enhance hydrogen production while minimizing operational complexity.

Tracer analytics determine absolute cell counts and functional relationships, resolving the trade-off between measurement precision and analysis complexity.

Novosphingobium MBES04 degrades lignin biomass to yield specific phenyl propane compounds, avoiding high energy costs of physiochemical methods.

Segmenting enrichment and detection phases lowers the limit to 0.04 cfu/g while cutting analysis time to two days.

Modified enrichment media accelerates bacterial growth to eight hours while eliminating false positives from residual DNA.

Reassigning stop codons and deploying orthogonal translation systems blocks horizontal gene transfer from viruses and plasmids.

Deleting the wcaJ gene in bacterial strains minimizes entrapped fermentation broth, increasing succinic acid yield and reducing substance loss.

Recombinant host cells synthesize animal-free fusion casein, eliminating greenhouse gas emissions from cattle farming.

A mutant carotenoidogenic bacterium with modified synthase genes produces astaxanthin at five times higher efficiency.

A recombinant microorganism uses a constitutive promoter to continuously express lysine decarboxylase CadA.

Amino acid substitutions increase enzyme thermostability, resolving heat stability limits that cause suboptimal crumb texture during baking.

Recombinant Bacillus subtilis overcomes inefficient chemical synthesis by expressing key enzymes to accumulate 196.15 g/L of GDP-L-fucose.

Water-soluble culture capsule containing egg yolk lecithin and cholesterol resuscitates viable but non-culturable bacteria.

Modified Pseudomonas bacteria detect naphthenic acids through responsive genetic circuits.

K90N and S92K mutations in RamA increase carbon metabolic flux, achieving 31.5 g/L N-acetylglucosamine without complex multi-gene engineering.

A Bacillus amyloliquefaciens strain converts arginine to ornithine during fermentation.

Thiocarboxylates maintain high sulphur bioavailability in fermentation media, avoiding hydrogen sulfide toxicity and metal salt precipitation.

Endoplasmic reticulum localization signals direct polypeptides to specific cellular compartments via receptor-mediated pathways.

Substituting the 241st amino acid in citrate synthase balances growth rates and productivity by redirecting carbon flow.

Isolated Pseudomonas sp. strain degrades polystyrene plastic into lower molecular weight compounds using microbial metabolism.

A fusion protein of Rv2299c and ESAT-6 matures dendritic cells to enhance Th1 immune responses.

Modifying enzyme activities in E. coli increases glucose conversion rates, reducing production costs and environmental impact.

Selected Lactiplantibacillus strains promote hair generation and density without degrading biotin.

A gnotobiotic isolation system uses seed surface pre-inoculation to establish slow-growing rhizobacterial populations before competitive contaminants.

Engineered Escherichia coli overcomes product inhibition to achieve high O-phosphoserine yields, enabling efficient L-cysteine synthesis.

Bacteria with specific 16S rRNA sequences degrade sludge volume through enzymatic breakdown, replacing incineration to eliminate greenhouse gas emissions.