Abstract Microbial degradation of synthetic dyes is considered a promising green dye detoxification, cost-effective and eco-friendly approach. A detailed study on the decolorization malachite (MG) using newly isolated Pseudomonas plecoglossicide MG2 was carried out. Optimization MG biodegradation by tested organism investigated UV–Vis spectrophotometer resultant degraded products were analyzed liquid chromatography–mass spectrometry FTIR. Also, cytotoxicity studied human normal retina cell...

Silver nanoparticles (AgNPs) have unique properties and a large range of applications. Biosynthesis stable AgNPs using the extracellular filtrate Bacillus subtilis was proved by characteristic surface plasmon resonance at about 420–430 nm. They were polycrystalline with spherical, hexagonal, irregular shapes they negatively charged (–40 mV) an average diameter 20 FTIR spectrum confirmed presence protein molecules coating AgNPs. The optimum conditions for synthesis tested 1:6 dilution, 1 mM...

Sustainability has become a global requirement in all industries. In the textile sector sustainability can be achieved by developing innovative techniques, approaches, and machinery. The current study introduces sustainable approach for linen dyeing with natural lac dye using microwave heating after treatment chitosan as cationic bio-mordant. was carried out pad/dry-cure process citric or acetic acid. Linen samples were characterized scanning electron microscopy (SEM), fourier transform...

Abstract Globally, millions of cubic meters dye-contaminated wastewater are generated annually from the textile industry. Discharging into natural water streams is detrimental to ecosystem and human health. Wastewater bioremediation considered a practical solution for converting value-added safe reuse especially in irrigation. The present study investigated immobilization highly stable spore laccase enzyme Bacillus amyloliquefaciens A1 by entrapment adsorption techniques. Based on results,...

(2021). Potential of silver nanoparticles synthesized using low active mosquitocidal Lysinibacillus sphaericus as novel antimicrobial agents. Preparative Biochemistry & Biotechnology: Vol. 51, No. 9, pp. 926-935.

Gold nanoparticles (AuNPs) have different unique properties and a wide range of applications in fields. Thereby, there is growing urgency for the production AuNPs using safe an economic method. In this study, optimization fermentation conditions by Bacillus subtilis NRC1 extracellular synthesis response surface methodology was achieved. The data obtained from Plackett-Burman design followed Box-Behnken indicated accuracy reliability model it could be used to navigate space with reasonable...

Aims: This study is to evaluate the effect of petroleum crude oil contaminated soil on mineral nutrient elements, properties and bacterial biomass rhizosphere jojoba plants (Simmodsia chinensis).Methodology: A pot experiment was carried out.The treated with different levels oil: 1, 2 3% v/w either alone or in combination inorganic fertilizers.Results: Malondialdehyde (MDA) concentration increased leaves when grown polluted especially at 2% oil.It noted that, Na, Mg Ca decreased while K...

The spore laccase enzyme production by B. amyloliquefaciens was optimized. It characterized and tested for its textile dye decolorization potential. LB medium found to be the most promising growth with addition of glucose (1–2%), yeast extract (0.1%), FeCl3 (0.01 mM) MnCl2 (0.001 mM). optimum at pH 8, 30 °C, 1:5 air ratio, 2% inoculum size 7 days incubation. characterization study showed maximum activity 60 °C 6–7.5. induced Ca+2, Mg+2, Fe+3, Zn+2, Cu+2 Na+ 1 mM concentration. Also, it...

This study evaluated the effect of petroleum crude oil contaminated soil on mineral nutrient elements, properties and bacterial biomass rhizosphere jojoba plant (Simmondsia chinensis). Malondialdehyde (MDA) concentration increased in leaves when grown polluted especially at 2% 3% oil. It was noted that Na, Mg Ca decreased, while K shoots jojoba. In roots Na increased, however decreased with increasing soil. Heavy metals, Cu, Mn, Cd Pb both shoot root concentration, Zn comparing control....

Insertional mutations in the spo0A and spoIIAC genes of Bacillus sphaericus 2362 were prepared by conjugation with Escherichia coli using a suicide plasmid containing cloned portions target genes. The mutants resembled their subtilis counterparts phenotypically devoid crystal proteins as determined electron microscopy, SDS-PAGE Western blots. had greatly reduced toxicity to anopheline mosquito larvae compared parental strain. We conclude that protein synthesis this bacterium is dependent on...

Abstract Mycosynthesis of stable silver nanoparticles (AgNPs) using Aspergillus caespitosus exo‐ and endo‐filtrates were obtained. Both endo‐AgNPs showed an absorbance peak at 410 nm, spherical, hexagonal, anisotropic crystalline with 22–57 nm in size. FTIR analysis mycosynthesized AgNPs presence amide carbonyl functional groups, which depicts the peptides that involved synthesis stability AgNPs. Nitrate reductase activity was found to be 0.71 0.36 μM/min/ml for endo‐filtrates, respectively....

Mosquitocidal toxins of Bacillus thuringiensis israelensis (Bti) and Lysinibacillus sphaericus 14N1 (Ls14N1) were produced under solid-state fermentation using agro-industrial wastes. Sugar beet pulp–sesame meal (1:1) wheat germ meal–linen at 9% the efficient substrate mixtures for growth toxin production Bti Ls14N1, respectively. was more active after addition beef extract (0.2%) or yeast (0.5%) to medium. On other hand, NYSM salts (2%) significantly enhanced toxicity by Ls14N1. The optimum...

Blood clot formation increases cases of myocardial infarction (AMI) and stroke, thus urges directing much research works for treatment prevention the causes. One these directions is microbial production fibrinolytic enzymes as thrombolytic agents. In current work, Bacillus subtilis Egy has been used enzyme under solid state fermentation. Among twelve nutrient meals in addition to wheat bran a control fodder yeast yielded highest activity reaching 114U/g. Applying statistical model...