Bacteria TRIZ Cases

Engineered E. coli cells produce isoprenyl acetate through a mevalonate pathway, eliminating petrochemical toxicity.

Alginate calcium crosslinking preserves probiotic viability during high-temperature feed extrusion.

A genetically engineered strain produces alginate lyase with high activity and stability through optimized fermentation parameters.

Deleting the phaC gene redirects carbon flux to extracellular products, resolving polyhydroxyalkanoate accumulation bottlenecks.

Novel androgen receptor splice variants serve as prognostic biomarkers, enabling detection of androgen-independent prostate cancer recurrence.

Cell lines expressing PKD1L3 and PKD2L1 heteromers enable precise detection of sour taste receptor activity through fluorophore-based reporting agents.

Targeted amino acid substitutions in GH61 polypeptides enhance cellulolytic activity, resolving limited degradation efficiency of lignocellulosic feedstocks.

Dynamic substrate feeding in Bacillus cultures resolves oxygen demand limits, enabling high spore concentrations without prolonged fermentation times.

UV-initiated polymerization creates a capture layer that concentrates mycobacteria, improving diagnostic sensitivity without expensive infrastructure.

Engineered strains convert glucose into targeted fatty acids via controlled elongation, eliminating costly feedstock fractionation.

CRISPR-Cas systems modify pollinator gut microbiomes to assimilate and degrade neonicotinoids, reversing population declines caused by pesticide toxicity.

A fermented dietary product combines pea protein and coconut flour with specific Lactobacillus bulgaricus and Streptococcus thermophilus strains.

A chamber-based electrode system induces electric polarization in soil to drive biological catalysts and form solid minerals.

Lactobacillus gasseri CCFM1133 reduces serum uric acid by inhibiting xanthine oxidase and enhancing ABCG2 transporter expression.

Optimized alkylene oxide addition prevents precipitate formation in fermentation media, ensuring consistent defoaming effectiveness across temperature changes.

Recombinant microorganisms secrete lipids via targeted gene modifications, resolving the trade-off between host robustness and lipid yield.

Modified Geobacter sulfurreducens strain KN400 boosts power density by enhancing nanowire conductivity and reducing internal resistance.

Defined fermentation medium with magnesium feed improves protein yield while maintaining process consistency.

Inactivated bacterial spores inhibit malodor production, replacing ecotoxic biocides with long-lasting biological agents.

Cryoprotectants prevent ice crystal formation during storage, eliminating cell damage without requiring cryogenic infrastructure.

A one-pot Endo-S glycosynthase converts heterogeneous antibodies to homogeneous glycoforms via sequential deglycosylation and transglycosylation.

A multi-strain probiotic composition combines five specific bacterial strains to enhance intestinal microbial diversity and improve the Firmicutes/Bacteroidetes ratio.

An AI-2 molecular response-based starting element self-induces dCpf1 expression to regulate metabolic pathways without IPTG-induced toxicity.

Engineered recombinant Ralstonia eutropha increases polyhydroxyalkanoate yield through targeted genetic modifications.

Optimized nutrient ratios in ton-scale tanks resolve the contradiction between large volume and high bacterial concentration, achieving stable storage.

A biologically pure Clostridium autoethanogenum isolate converts carbon monoxide into ethanol with high productivity.

Komagataeibacter europaeus strain FMES produces bacterial cellulose through static culture, offering a sustainable alternative to petrochemical textiles.

Whole-cell catalysts replace harsh chemical reagents to improve regioselectivity and eliminate environmental pollution during troxerutin ester synthesis.

EDCIN composition delivers lactose and vitamin B-12-fortified brewer's yeast to support Dehaloccoides bacteria, resolving slow cVOC degradation in groundwater.

Partial acetolactate decarboxylase inactivation redirects metabolic flux toward isobutanol biosynthesis while maintaining cell viability.

Recombinant microorganisms produce heme through HemA and DtxR gene expression, addressing costly 5-aminolevulinic acid synthesis.

Transcriptome sequencing identifies constitutive promoters with phase-dependent activity for Corynebacterium expression vectors.

Bifidobacterium longum CCFM1029 relieves atopic dermatitis by reducing inflammatory markers and IgE levels without adverse reactions.

Engineered fructose-4-epimerase variants convert fructose to tagatose, decoupling production from unstable lactose markets.

Enzymatic conversion eliminates toxic cyanides and achieves 100% conversion rates for industrial L-phosphinothricin production.

Injecting digesting microorganisms into reservoirs breaks down heavy hydrocarbons to lower fluid viscosity.

Multicopy plasmids amplify biosynthetic genes in Sphingomonas to yield high viscosity diutan, resolving low viscosity limits.

Engineered gut bacteria convert dietary isoflavones into Equol metabolites via introduced enzymatic pathways, addressing limited natural conversion capability.

A Christensenella minuta bacterial strain restores healthy intestinal microbiota balance through immunomodulatory effects.

Recombinant cells with reduced BioH activity convert carboxylic acid esters using alkane hydroxylases, eliminating enzyme competition to boost yield.

Increasing xmpE gene copies and optimizing promoters boosts yield while maintaining cost-effective direct fermentation.

Specific amino acid substitutions allow recombinant FcγRII proteins to express in soluble form, eliminating refolding steps and boosting thermal stability.

Isolated inert carrier Salmonella strain enables indirect agglutination testing without non-specific cross-reactions.

Relocating pathway enzymes to the periplasmic space directs metabolic flux, preventing toxic intermediate accumulation in the cytoplasm.

MiniSOG replaces toxic heavy metal tags by using photochemical singlet oxygen generation to create osmiophilic deposits for high-resolution electron microscopy.

Co-expressing SCR, SCR2, and SCR3 genes creates hetero-oligomers that expand substrate spectra to include polyphenyl ketones.

Codon-optimized PheS markers resolve low loop-out rates and false positives in Bacillus, enabling high-throughput scarless edits.

Engineered Escherichia coli strain ZH021802 produces high-concentration Microcin J25 via fermentation to combat bacterial resistance in aquaculture.

Engineered bacteria expressing linalool synthase resolve low yield contradictions by accumulating 200 mg/L of linalool.