Abstract This study contributes to the current state of knowledge by highlighting physical–chemical interactions between biochar and dyes. The removal Acid Orange 7 (AO7) dye a modified obtained from wastes mandarin peels (MPs) has been investigated in this work. A dehydration procedure with 80% H 2 SO 4 under reflux was applied produce an innovative MPs then boiled O followed boiling triethyle...

Agent Orange is at the core of an ongoing controversy involving veterans organizations that want the Federal govenment to complete a study intended to examine possible lasting health effects of exposure to this herbicide during the Vietnam War. Many Vietnam veterans are quite concerned that various health problems they have suffered may be associated with exposure to Agent Orange in Vietnam. Th...

A model solution of orange juice was prepared and stored. Factors affecting browning and formation of such decomposition products as 3-hydroxy-2-pyrone (3OH2P), 5-hydroxymethylfurfural (HMF), furfural, 5-hydroxymaltol, and 2-furoic acid were examined. Ascorbic acid (AsA) was essential for browning, which was stimulated by amino acids and citric acid, and repressed by chelators and radical scave...

Phenolic compounds of unripe and ripe sweet orange peels were determined using a high-performance liquid chromatography separation method with diode array detector (HPLC-DAD). The in vitro antioxidant properties and the EC50 (concentration required to obtain a 50% antioxidant effect) values were also determined. The predominant phenolic compounds were quercitrin, rutin, and quercetin with value...

Ethylenediaminetetraacetic acid (EDTA) is widely used in the life sciences as chelating ligand of metal ions. However, formation of supramolecular EDTA aggregates at pH > 8 has been reported, which may lead to artifactual assay results. When applied as a buffer component at pH ≈ 10 in differential scanning fluorimetry (TSA) using SYPRO Orange as fluorescent dye, we observed a sharp change in fl...

Approximately 6% of dog platelets are positive for staining with thiazole orange, a dye frequently used to stain ribonucleic acid. In this report, thiazole-orange positivity is shown to mark platelets that are less than 24 hours old. Dog platelets were derivatized in vivo with N-hydroxysuccinimido biotin such that greater than 95% of all platelets were biotinylated. Newly synthesized, nonbiotin...

Dyes present in the effluent of textile industries are recalcitrant molecules difficult to be degraded biologically. In this study we used Pseudomonas fluorescens to degrade Direct Orange 102 dye. Pseudomonas fluorescens NCIM 2100 was obtained from National Chemical Laboratory, Pune, India, that was adapted to grow on Direct Orange 102. The dye was subjected to degradation by the bacterium and ...