Bacteria TRIZ Cases

Attenuating succinyl-CoA-to-succinate steps and boosting transhydrogenase cuts TCA-cycle CO2 loss and preserves carbon for bioderived products.

Anaerobic co-culture on particles preserves origin-sample similarity while improving safety, reproducibility, and scalable microbiota testing.

Pyrolysis splits polyethylene and polypropylene into alkanes that enzymes convert into PHAs, avoiding direct microbial limits and microplastic formation.

An in vitro enzyme cascade converts long-chain fatty acids into homogeneous PHA monomers and polymers, extending chain length without purification.

A 3-dehydroshikimate dehydratase gene lets Hydrogenophilus use CO2 alone to produce protocatechuic acid with lower cost and emissions.

Targeted mutations in Pyrococcus abyssi DNA polymerase improve non-natural dNTP incorporation, boosting sequencing speed and quality.

Introduced chorismate-pyruvate lyase and 4-hydroxybenzoate hydroxylase let Hydrogenophilus convert CO2 into protocatechuic acid efficiently.

Bacillus subtilis fermentation removes fructose from pea oligosaccharides while preserving protein and prebiotic value, reducing digestive issues.

Site-directed acetylglutamate kinase mutations in Corynebacterium raise L-arginine and L-citrulline productivity without complex strain engineering.

Oral green tea-derived L. plantarum helps limit hepatocyte fat buildup and oxidative stress to support liver function in fatty liver disease.

Gut microbiota modulation with probiotic strains helps prevent sleep-deprivation cognitive deficits without the side effects of CNS stimulants.

Faecal bacterial abundance analysis predicts which IBS patients are likely to benefit from dietary intervention or faecal microbiota transplant.

Cell retention and metabolic water removal keep methanogenic cultures stable, cut nutrient loss, and raise methane output at lower cost.

Medium tuning with amino acids, oxygen enhancers, and dried bacterial residue raises bleomycin titer while helping control the A2:B2 ratio.

Point mutations in pepD and fadR help an engineered strain overcome metabolic bottlenecks and raise tryptophan yield in scaled fermentation.

By switching from sugar feedstocks to CO2 and H2, engineered C. necator produces PHAs, sucrose, and LCO fertilizers with lower land use.

Two probiotic strains work synergistically to reduce pain, neutrophil aggregation, and inflammatory factors in gouty arthritis.

Protein inactivation in Corynebacterium removes feedback inhibition, raising L-arginine yield by 25% to 50% with simpler strain engineering.

Four probiotic strains are combined to boost intestinal peristalsis, raise peptides and short-chain fatty acids, and relieve constipation.

A blood-free medium uses oxygen scavengers, adsorbents, and growth factors to culture fastidious bacteria with lower cost and biosafety risk.

Specific AHAS amino acid substitutions reduce L-isoleucine feedback inhibition, raising yield while limiting norvaline and other by-products.

Engineered proline-rich glycoside hydrolase variants resist protease degradation in detergents while improving wash performance.

Site-directed acetylglutamate kinase mutations raise Corynebacterium L-arginine and L-citrulline output by improving pathway efficiency.

Using UGT94D1 and UDP-glucose, this case shows how rebaudioside M2 yield reaches 90% without byproducts, easing purification.

Engineered ketoreductases improve solvent stability and cofactor recycling to deliver high-load chiral alcohol synthesis with low waste.

Resazurin boosts Clostridium arsenic methylation and volatilization, improving contaminated soil and water remediation with a simple reagent addition.

Strong thlA-driven cip-cel overexpression activates the cellulosome, enabling C. acetobutylicum to grow on lignocellulosic biomass.

Combining Akk11 and LJ09 lowers uric acid, improves renal clearance, and avoids the side effects and resistance seen with drug therapy.

Defined media and a 22-species gut culture panel overcome anaerobic growth bottlenecks for xenobiotic metabolism and drug screening.

Beneficial Staphylococcus-derived actives suppress dermatitis by modulating skin flora, reducing inflammation, and enhancing glucocorticoid gene expression.

A dog-derived Lactobacillus reuteri strain lowers lactose in fermented milk while preserving probiotic benefits and voluntary canine intake.

Targeted amino acid substitutions in an L-threonine exporter boost microbial export capacity and raise L-threonine yield.

A transformed EcN strain secretes Akkermansia-derived AmTARS, avoiding difficult culture while enabling anti-inflammatory gut therapy.

Engineered E. coli removes key reductive pathways and adds cytosolic isomerase activity to boost disulfide-bonded protein yield.

Engineered microorganisms shift psicose synthesis to favorable sugar-phosphate pathways, raising yield and purity while simplifying separation.

High bile salt hydrolase activity and gastric acid tolerance enable this Lactobacillus acidophilus strain to lower cholesterol, glucose, and weight.

Targeted mutations in a thermostable DNA polymerase improve incorporation of fluorescent non-natural dNTPs, boosting sequencing speed and quality.

Modified Bacillus strains oxidize sulfur in ore at neutral pH and ambient temperature to enrich gold, silver, and platinum group metals.

A Priestia sp. strain replaces chemical synthesis by co-producing three aroma compounds in one fermentation process for Baijiu, foods, fragrances, and drugs.

Hydrolyzed proteins replace conventional sugars to keep viable microorganisms stable in dry form under heat and humidity.

Overexpressing ygaZ and ygaH boosts methionine efflux in recombinant microorganisms, easing feedback inhibition and improving yield per carbon source.

A newly isolated Nocardioides strain converts DON into less toxic forms under mild conditions, enabling stable detoxification in feed, food, and polluted ecosystems.

Phosphate depletion triggers uniform E. coli autoinduction, reducing acetate toxicity while raising biomass and recombinant protein yield.

Sporulated microbes break down organic contaminants in livestock drinking water, reducing manual cleaning while maintaining water quality.

Cold shock proteins keep cell-free protein synthesis active below 30°C, improving soluble active protein yield while reducing precipitation.

Mutated aldehyde dehydrogenase improves adipyl-CoA selectivity, cutting byproducts while raising nylon intermediate yield in engineered microbes.

Deleting dicarboxylic acid excretion carriers while boosting 3-oxoadipyl-CoA reduction raises 3-hydroxyadipic acid and α-hydromuconic acid yield.

Exogenous enzymes and gene attenuation raise NADPH availability in microbes, improving redox balance and boosting chemical production yields.

Automated cultivation varies media and environmental factors to grow unculturable microbes and speed antimicrobial selection.

Programmed media and environmental control enable growth of unculturable microbes and faster antimicrobial efficacy testing.

Fermenting mushroom extracts with specific lactic acid strains boosts umami taste while maintaining health safety.

Replacing chemical catalysts with a biological system, the invention converts carbon dioxide into combustible fuels without biomass production.

Fusing modular recognition domains to antibodies resolves the trade-off between therapeutic effect and tumor targeting capability.

Inactivating the NCgl2909 gene resolves the contradiction between increased bacterial mass and reduced L-lysine yield.

Zea mays codon optimization removes stem loop structures and restriction sites to boost recombinant protein production in Pseudomonas fluorescens.

Pleckstrin homology domains direct DGAT enzymes to specific subcellular locations in recombinant algae.

A multi-strain probiotic composition reduces blood glucose and hemoglobin A1c levels.

K221R and G369A mutations resolve the trade-off between enzyme activity and thermal stability, enabling high-yield beta-alanine production.

Expressing vanillate demethylase and dioxygenase in modified microbes converts S-lignin to PDC, overcoming low conversion efficiency.

Specific bacteria in activated sludge degrade organic waste, preventing foul odor and scum formation during wastewater treatment.

Lactiplantibacillus plantarum MFM 30-3 metabolizes toxin precursors, reducing uremic levels and improving renal function.

Disrupting specific genes in Corynebacterium enhances L-lysine productivity by removing metabolic bottlenecks without complex multi-gene systems.

Modifying the xylE gene encoding D-xylose permease resolves carbon source access bottlenecks, increasing L-amino acid yields.

Genetic modification of Synechococcus elongatus with phaCAB genes resolves low biomass productivity trade-offs to achieve 420 mg/L PHB yields.

Selected Lactococcus lactis and cremoris strains accelerate acidification in pea, soy, and oat media while maintaining shelf stability.

Microbial fermentation of waste carbon monoxide yields uniform C16-C18 biodiesel, eliminating engine damage from variable chain lengths.

Bacterial spores embedded in a UV-cured adhesive layer enable reversible shape changes through humidity-driven expansion and contraction.

Peptide mimics resist enzymatic degradation of vitamin D-binding protein to sustain immune response.

Transformed Corynebacterium sp. expresses Escherichia-derived fructokinase to convert fructose into fructose-6-phosphate.

Adaptive evolution in decreasing LB broth yields a minimal genome microorganism with high growth efficiency and protein translation capacity.

Engineered E. coli strains express exogenous sulfotransferases to synthesize chondroitin sulfate, avoiding animal-derived contamination risks.

Pre-culturing acetogenic bacteria on selected substrates overcomes slow doubling times to achieve high ethanol productivity from syngas.

Recombinant yeast expressing methyl halide transferase synthesizes methyl halides from halides and carbon sources under mild conditions.

Antagonists inhibit PCSK9 function to lower LDL cholesterol and treat hypercholesterolemia.

Concentrating raw beet juice to 60 Brix stabilizes the substrate against infections and reduces storage costs while maintaining high yield.

Lactiplantibacillus plantarum Provege strain ferments food substances to increase nutritional value.

Applying selected microbial inoculants to gametophytes increases biomass yield and stress tolerance, resolving cultivation complexity constraints.

A fed-batch fermentation strategy uses pH feedback to regulate feed medium addition rates.

Fusion peptides combine lytic domains with luteinizing hormone-releasing hormone ligands to target prostate cancer cells.

Recombinant E. coli strains generate low molecular weight heparosan via enzymatic pathways, eliminating animal source adulteration risks.

Pre-adapted non-citric fermenting bacteria preserve fruitiness by preventing acetic acid production during direct wine inoculation.

Selected lactic acid bacteria degrade gluten proteins during fermentation, reducing contamination risks while improving bread texture.

Galectin-Ig fusion constructs maintain pro-apoptotic activity without reducing agents, resolving oxidative inactivation of Galectin-1 proteins.

Engineered alkaliphilic microbes convert heavy hydrocarbons into fatty acids, reducing viscosity and bypassing indigenous light hydrocarbon consumption.

Propionibacterium acnes strains deliver therapeutic proteins through the skin barrier using CRISPR editing and self-service intermediary mechanisms.

A modified homoserine dehydrogenase enzyme enhances L-threonine production yields through targeted amino acid substitutions.

Engineered pathways bypass traditional glycolysis to resolve ATP shortages and xylose inhibition, improving MEG yield from abundant hexose sugars.

Microbial fuel cells remove acetate and furfural from ethanol process water, enabling continuous recycling without reducing yield.

Deleting the 130th adenine nucleotide in the E. coli gapA promoter creates a variant enabling high-level constitutive protein expression.

Maintaining precise carbon dioxide and lactate levels stabilizes CoQ10 production by preventing biofilm formation that restricts material transfer.

Paste granulation creates homogeneous powder that eliminates clumping and manual pH adjustment.

Specific probiotic strains utilize bile salt hydrolase activity to sequester cholesterol, avoiding pharmaceutical side effects.

Genetic merging of pladienolide synthesis and hydroxylation functions in Streptomyces eliminates multi-stage processing complexity.

Engineered yeast strains accumulate benzylisoquinoline alkaloid precursors, bypassing low-yield plant extraction and harsh chemical processing.

Modified bacterial genes enable nitrogen fixation under oxygen-rich conditions, reducing reliance on synthetic fertilizers for crops like corn and wheat.