Tef is a nutritionally-rich ancient grain gaining increasing interest in gluten-free market. Molecular and structural properties the main biopolymers of two Spanish ecotypes tef flour physically modified by ultrasound (US) treatments under different temperatures (20, 40, 45, 50 55 °C) were studied. Modifications achieved dependent on ecotype, where white presented higher susceptibility. Size-ex...

The release kinetics of beta-galactosidase protein have been determined during small-scale ultrasonication of E. coli cells. Among several studied parameters, ionic strength and cell concentration have the least influence on the rate of protein recovery, whereas sample volume and acoustic power dramatically affect the final yield of soluble protein in the cell-free fraction. The analysis of the...

We report an accessible and simple method of producing 'black silicon' with aspect ratios as high as 8 using common laboratory equipment. Gold was sputtered to a thickness of 8 nm using a low-vacuum sputter coater. The structures were etched into silicon substrates using an aqueous H2O2/HF solution, and the gold was then removed using aqua regia. Ultrasonication was necessary to produce columna...

Graphene nanosheets have been synthesized from commercial expandable graphite by heating in a microwave oven and dispersing in ethanol by ultrasonication. Scanning and transmission electron microscopy and electron energy-loss spectroscopy and atomic force microscope showed that the nanosheets were about 2 nm in thickness and 10 microm in diameter. The field emission of the graphene sheets has b...

Four novel organotin(IV) complexes containing phosphoric triamide ligands were synthesized and characterized by multinuclear ((1)H, (31)P, (13)C) NMR, infrared, ultraviolet and fluorescence spectroscopy as well as elemental analysis. The (1)H NMR spectra of complexes 1-4 proved that the Sn atoms adopt octahedral configurations. The nanoparticles of the complexes were also prepared by ultrasonic...

Each cheese type has a unique flavor. A variety of compounds various concentrations and different chemical classes contribute to this In the present study, effect processing techniques (ultrasonication (US), high pressure (HPP), microwave (MW)) on flavors sensory properties milk was investigated. Samples treated untreated were analyzed for volatile (including aldehydes, ketones, alcohols, fatty...

• Slug-flow crystallization employs spatially varying temperature and ultrasonication. Smaller crystals are obtained by including a section with rising temperature. A population balance model is constructed for the continuous tubular crystallizer. First to incorporate ultrasonication dissolution. Model agrees data many combinations of ultrasonic power Continuous slug-flow has been explored seve...

This study aimed to determine the effect of high-intensity ultrasound (HIU. F = 37 kHz, I 28W/cm2, bath for 30 min, 5 °C) on physicochemical characteristics and sensorial preference seven aged (23 d ageing) bovine muscles (L. dorsi lumborum, L. thoracis, Psoas major, Semimembranosus, Biceps femoris, Rectus Gluteus medius). Muscles were randomly distributed in two treatments: with without ultras...

The Front Cover illustrates the change in circularly polarized luminescence (CPL) of a chiral diamine-linked bispyrene caused by two types mechanical stimuli, namely ultrasonication and grinding, analogous to volcanic eruption collision rocks depicted image. More information can be found Article Suguru Ito, Yoshitane Imai co-workers.