Adsorption of metal impurities from transformer oil was studied using a novel porous membrane. A solution of N, O‑carboxymethyl‑chitosan (CMC) and sodium phytate (SP) was blended to prepare a novel porous membrane for the metal impurities adsorption from transformer oil. The chemical structure o...

Lactobacillus pentosus (LP) are widely used as probiotics in food products, dietary supplements, and nutraceuticals due to their health-promoting effects. To confer a functional effect, the probiotics need to survive during shelf-life and transit through the high acidic conditions of the stomach...

In this paper, sodium phytate, a phosphate ester salt rich in phosphate groups, was evaluated as a flotation depressant for selective separation of scheelite from calcite. Its adsorption mechanism on the mineral surface was also investigated through zeta potential and FTIR spectra analysis. The ...

Considering the environmental requirements and cost of energy consumption, organic phytic acid salt, a non-toxic and non-polluted green reagent, was used to decompose scheelite. The present study investigated the leaching kinetics of scheelite ore with sodium phytate. The effects of reaction tem...

A branched amino acid was synthesized from methyl glucopyranoside; this amino acid presents three amino groups protected by Fmoc and one acid group and can be used in classic peptide synthesis. In parallel, similar azido terminated blocks were synthesized.Successive coupling reaction and deprote...

The objective of this study was to encapsulate gallic acid in Hydroxypropyl methylcellulose (HPMC)/ polyethylene oxide (PEO) blend nanofiber by using electrospinning and examine the usage of nanofibers as active packaging materials. Gallic acid loaded nanofibers showed homogenous morphology. Gal...

Bifunctional, acetyl-protected, azido glucuronic and galacturonic acid derivatives were coupled via the carboxylic acid moiety to amine- and hydroxyl-containing side chains of the natural amino acids lysine and serine or via the N-terminus of the amino acids leucine, methionine and glutamine. Th...

The interaction between 39 barbituric acid derivatives and hydroxypropyl-β-cyclodextrin (HPβCD) was studied by reversed-phase charge-transfer thin-layer chromatography. Except for one derivative, each barbiturate formed inclusion complexes with HPβCD, the complex always being more hydrophilic...

Sulforaphane (SF) has been of increasing interest for nutraceutical and pharmaceutical industries due to its anti-cancer effect, but it is very sensitive to changes in the temperature and pH. In the present work, pure SF and inclusion complex of SF with hydroxypropyl-β-cyclodextrin (SF/HP-β-CD...

In continuation of our efforts toward identification and optimization of novel non-nucleoside reverse transcriptase inhibitors (NNRTIs), we have employed a structure-based bioisosterism strategy, with which a new series of diarylpyridazine (DAPD) derivatives were synthesized and evaluated for th...

The production of the anticancer drug Taxol in Taxus (yew) cell cultures is often accompanied by the formation of side-route polyoxygenated taxoid metabolites bearing a 14β-hydroxyl group. The recent acquisition of several new semisynthetic taxoid intermediates enabled the screening of a family...

Cardenolides are composed of a steroid nucleus and a five-membered unsaturated lactone (butenolide) ring at C-17β. It is assumed that the butenolide ring is formed from a pregnane 21-O-malonyl hemiester after a condensation reaction between the methylenic group of the malonic acid residue and t...

The base induced deprotonation of H-14 of 7-triethylsilyl- (7-TES-) and 7-tert-butoxycarbonyl- (7-BOC-) protected 13-oxo-baccatins gave the corresponding enolates, which were selectively aminated with electrophilic nitrogen donors, such as azodicarboxylates and tosyl azide. In particular, tosyl ...

Methionol-derived fatty acid esters were synthesised by both chemical and lipase catalysed esterification between fatty acids and methionol. Beneficial effects of both methods were compared qualitatively and quantitatively by GC–MS/GC-FID results. And the high acid and heat stability of our des...

Studies were carried out to evaluate the role of a C21-fatty acid ester; propyl octadecanoate (PO) for olfaction-mediated behavioral responses of urban malaria vector, Anopheles stephensi and dengue vector, Aedes aegypti mosquitoes using electroantennogram (EAG), flight orientation and ovipositi...

Sea buckthorn (Hippophae rhamnoides L.) pulp oils (SPOs) are rich in a variety of beneficial bioactive ingredients. Nevertheless, SPOs would be exposed to plastic equipment during processing, resulted in increasing phthalates contents and edible risk, as well as affecting oil quality. For these ...

The antioxidant activities in vitro and hepatoprotective effects against carbon tetrachloride (CCl4) induced acute liver injury in vivo of myristic acid acylated derivative of phloridzin (PZM) were investigated. The PZM was obtained by enzymatic acylation of myristic acid and phloridzin (PZ). Th...

In this study, a new inorganic-organic nano fibrous membrane (PTSNFM) has been fabricated via immobilization of carbazol-based Schiff base (S) into a polyvinyl alcohol (PVA) - tetraethyl orthosilicate (TEOS) polymeric support using the electrospinning method. PTSNFM has been used as an optode to...

Acrylamide and acrylonitrile were grafted on psyllium employing ceric ammonium nitrate (CAN) as initiator under N2 atmosphere to get an adsorbent of mercury ions. The synthesized adsorbent was optimized by varying synthetic parameters viz. monomer concentration, reaction time, temperature, initi...

Mercury ions can significantly affect the organism and environment even at a very low concentration. Thus, great efforts have been devoted to developing high sensitive electrochemical sensors, especially the one that not only detect the mercury ions but also effective sensitive to thymine-Hg2+-t...