Bacteria TRIZ Cases

Modifying ydbK expression control sequences and copy numbers resolves productivity limitations in microbial fermentation systems.

Vegetable hemoproteins replace animal heme in lactic acid bacteria culture media, enabling high biomass yields while maintaining vegetarian compliance.

Cysteine residues on engineered bacteriophages form disulfide bonds, enabling tunable hydrogel synthesis with spatial control over gelation.

Lactic acid bacteria ferment seaweed to break down cell walls and release nutrients.

A recombinant mutant Clostridium strain enables simultaneous co-fermentation of mixed sugars in lignocellulosic hydrolysates.

An engineered bacterial strain expresses multiple dehydrogenases to oxidize D-sorbitol directly into 2-keto-gulonic acid within a single fermentation vessel.

Complex probiotic composition reduces serum lactic acid and urea nitrogen levels in subjects with low intrinsic aerobic exercise capacity.

Bacillus subtilis FNFH_BS08 degrades antigen proteins and non-starch polysaccharides in soybean meal, resolving anti-nutritional factor bottlenecks.

HJV.Fc fusion proteins restore BMP signaling to regulate hepcidin expression and treat iron overload.

Seed crystals guide ortho-aminobenzoic acid precipitation during single-stage fermentation broth acidification.

Dead bacterial cells deliver high protein content while preventing microbiome disruption in food products.

Engineered Cas9 nucleases apply targeted amino acid substitutions to reduce off-target cleavage while preserving on-target activity.

An anaerobic enema system delivers purified fecal flora to colonize the gut and eradicate persistent infections.

Automated image classification of test plate colonies reduces laboratory shipping delays and accelerates livestock sample diagnosis.

A reporter gene system uses eGFP fluorescence to detect activation of silent biosynthetic gene clusters in actinomycete bacteria.

Engineered bacteria synthesize GABA from glutamate in situ, eliminating the need for high-dose oral supplementation to treat anxiety.

Anti-eotaxin-2 antibodies block CCR3 receptors to reduce inflammatory cell recruitment, addressing ineffective targeting of eotaxin-2 in autoimmune disorders.

A soluble oligosaccharide powder formulation provides prebiotic fiber without sugar or lactose.

Lactobacillus paracasei strain CGMCC No. 14813 ferments fruit raw materials to increase organic acid content, addressing low natural levels in plants.

Store biocatalysts at below 8°C with 3% concentration to maintain activity without spray drying complexity.

A hydrophobic layer of cocoa butter and saturated fatty acids protects freeze-dried lactic acid bacteria.

A compound microbial agent containing Bacillus tequilensis decomposes organic sludge in aquaculture ponds.

Replacing expensive dextrose with cheap sucrose via PTS-independent phosphorylase reduces production cost while maintaining high succinic acid yield.

A Clostridium microbial consortium ferments industrial glycerol to produce 1,3-propanediol via continuous culture.

High salinity culturing of salt-tolerant Lactobacillus eliminates specialized sterilization equipment needs while maintaining high foodstuff suitability.

Genetically engineered microbes produce ethylene glycol from syngas, overcoming thermodynamic constraints of chemical catalysis.

A calculating unit determines Klebsiella amikacin susceptibility using an Exp(-k) power value derived from arr-2, acrB, armA, oqxB, and rmtB gene copy numbers.

Engineered transaminase variants boost substrate specificity and enantioselectivity, overcoming wild-type equilibrium limits.

Systematic domain mutagenesis identifies alkali-tolerant protein A variants, resolving substrate instability during high-pH cleaning.

Methylomonas sp. ZR1 converts methane to high-value products, overcoming low growth rates and methanol toxicity limits.

Constitutive expression of alkane monooxygenase eliminates inducer requirements and prevents product overoxidation during alkane terminal oxidation.

Hairy root cultures enable rapid characterization of fastidious microbes, eliminating the 12 to 24 month delays inherent in traditional whole-plant methods.

Thioglycolic acid and L-cystine consume oxygen in the culture medium, enabling sensitive Clostridium difficile detection without anaerobic equipment.

A purified bacterial mixture stabilizes the gut microbiome and induces CD8+ T-cell proliferation to overcome treatment resistance in gastric cancer.

FrsA enzyme catalyzes pyruvate decarboxylation to boost ethanol yields, resolving low activity limits of conventional PDC enzymes.

Mutant strains overcome feedback inhibition to sustain elevated L-glutamine concentrations, achieving yields 10% higher than parent cultures.

Novel Enterococcus faecium strains replace antibiotics to promote growth while eliminating resistance risks and maintaining high viability.

A soil-stabilizing formulation combines alginase, Azotobacter vinelandii, and calcium chloride to enhance particle cohesion.

Extracting 4-hydroxybenzoate decarboxylase into cell lysates bypasses metabolic complexity and cytotoxicity barriers in renewable phenol synthesis.

Mutated homoserine O-succinyltransferase resists methionine feedback inhibition to boost O-succinylhomoserine yield.

Proteolytic enzymes from Bacillus polyfermenticus break down soy proteins into absorbable peptides, resolving poor nutrient uptake and digestive discomfort.

Drying fermentation broth preserves enzymatic activity for stable feed additives.

Deleting respiratory chain genes forces metabolic stability, enabling efficient D-lactate production from glycerol without strict anaerobic control.

Engineered microbial organisms express exogenous nucleic acids encoding reductive TCA pathway enzymes to enhance carbon flux through acetyl-CoA.

Mutant ALDC enzymes with zinc ions reduce diacetyl in beer while maintaining stability during fermentation.

Engineered Bacillus subtilis RF1-6ZYRS achieves 25.2 g/L riboflavin yield by redirecting metabolic flux via zwf, ywlf, and ribBA gene insertion.

Truncated L11 ribosomes reduce release factor competition, allowing suppressor tRNAs to incorporate non-canonical amino acids at multiple sites simultaneously.

Optimized Paenibacillus bovis fermentation and centrifugation produce extracts that reduce casein degradation while maintaining cheese yield.

A microfluidic channel device concentrates fine particles using fluid-dynamic flows without electrostatic interactions.

Exogenous RecA and RecO proteins boost single-crossover recombination frequency, enabling stable chromosomal integration of large DNA fragments.