Water-miscible alkylimidazolium ionic liquids (ILs) are "green" co-solvents for laccase catalysis, but generally inhibit enzyme activity. Here, we present novel insights into inhibition mechanisms by a combination of enzyme kinetics analysis and molecular simulation. Alkylimidazolium cations competitively bound to the TI Cu active pocket in the laccase through hydrophobic interactions. Cations ...

BACKGROUND Caesalpinia crista is a medicinal herb used to cure various ailments in subtropical and tropical regions of Southeast Asia. OBJECTIVE The objective of this evaluation of C. crista against free radical induced DNA and erythrocyte damage. MATERIALS AND METHODS The profiles of polyphenol and flavonoid were quantified through reversed-phase high-performance liquid chromatography. Fre...

Freeze dried protein powders (Fresh minced meat, FMM and Hot water dip, HWD) from tilapia (Oreochromis niloticus) were hydrolyzed by Alcalase 2.4 L (Alc), Flavourzyme (Flav) and Neutrase (Neut), and investigated for antioxidant activity and their functional properties. FMM and HWD hydrolysed by Alc, exhibiting superior antioxidant activity, had estimated degrees of hydrolysis (DH) of 23.40% and...

BACKGROUND In vitro antioxidant activities and neuron-like PC12 cell protective effects of solvent fractions from aged garlic extracts were investigated to evaluate their anti-amnesic functions. Ethyl acetate fractions of aged garlic had higher total phenolics than other fractions. METHODS Antioxidant activities of ethyl acetate fractions from aged garlic were examined using 2,2'-azino-bis(3-...

Ferulago macedonica Micevski & E. Mayer (Apiaceae), an endemic species from Macedonia, was evaluated for its essential oil composition and biological activity for the first time. The essential oil composition from inflorescence and aerial parts, analyzed by gas chromatography and gas chromatography–mass spectrometry (GC and GC-MS), indicated α-pinene (43.10% and 22.78%) and sabinene (26.73% and...

acetylcholinesterase properties of the aerial parts and roots essential oils from Crithmum maritimum L., Apiaceae, gathered in the area of Monastir (Tunisia). The essential oils have been analysed by GC and GC-MS. Remarkable differences were found between the constituent percentages of the different studied organs. The most important compounds from the aerial parts were: γ-terpinene (39.3%), me...

The lactoperoxidase was prepared from buffalo milk and purified using CM-Sephadex C-50 and Sephadex G-100. The activity of the enzyme was measured using 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) diammonium salt as a chromogenic substrate at pH 6.0. The purified protein was crystallized from 0.01 M sodium phosphate buffer (pH 8.0) with 10%(v/v) ethanol by the sitting-drop vapour-diff...

Phenolic compounds, which naturally occur in beans, are known to have antioxidant activity, which may be partially lost during the processing of this legume. This study evaluated the effect of thermal processing and maceration on the phenolic acid and flavonoids profile and content and on the antioxidant activity of white beans. According to the results obtained from the 2,2-azino-bis (3-ethylb...

A thermally stable laccase was purified from the culture filtrate of Hexagonia tenuis MTCC-1119. The method involved concentration of the culture filtrate by ammonium sulphate precipitation and an anion-exchange chromatography on diethylaminoethyl (DEAE) cellulose. The sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and native polyacrylamide gel electrophoresis (native-PAG...

Abstract Currently, there is a growing interest in valorizing agro-food byproducts having interesting bioactives with functional and health properties. This paper deals the use of apple pomace (AP), most abundant by-product juice industry, to formulate novel value-added mayonnaise (AP mayo). The effect AP on chemical rheological characteristics, microbiological quality, sensory attributes new p...