the effects of pulsed electric field (pef) on the cell disintegration of sugar beet were studied. field strength (0.5kv/cm to 6kv/cm), pulse number (1 to 100 pulses) and capacity of capacitors (0.5 f to 32 f) were evaluated on degree of cell disintegration and consumed energy in pef treatment. the field conditions of 1 and 2 kv/cm, 8 f with 20 and 10 pulses respectively disintegrated the cel...

A model stomach system was used to investigate disintegration of various foods in simulated gastric environment. Food disintegration modes and typical disintegration profiles are summarized in this paper. Mechanisms contributing to the disintegration kinetics of different foods were investigated as related to acidity, temperature, and enzymatic effect on the texture and changes in microstructur...

In order to prepare intracellular substances from microorganisms the barrier of the cell envelope has to be disrupted. Since this barrier is usually very resistant, the methods available for the preparation of substances with unstable activity are restricted due to the inactivation occasioned by some disintegration processes. Some methods, usually applying physico-mechanical shearing stress, ar...

In excised embryos of Fraxinus ornus, the first macroscopic sign of germination is a curvature near the root apex. Histological studies show that this curvature is due to cell elongation on the convex side and is accompanied by cell division. Metabolic changes, manifested by the disintegration of protein bodies and tissue differentiation, also occur during this time. In embryos treated with phl...

The paper considers a simple model of radially symmetric cell which undergoes growth due to a continuous supply of nutrient, and disintegration as a result from the various tasks the cell performs. The boundary of the cell is a \free boundary", unknown in advance, which evolves by responding to both the growth and disintegration processes. If the nutrient concentration (at in nity) exceeds a ce...

This report describes a new disintegration tester that can determine not only the disintegration time of orally rapidly disintegrating tablets (ODT), but also the disintegration behavior and mechanism. Using the tester, the disintegration properties of the tablets prepared in a previous study were examined. The purpose of this study is to confirm the utility of the tester as an instrument for e...

Mycoplasma contamination of cell cultures is a serious and widespread problem. Contaminated cultures are frequently discarded or the contamination ignored since treatment with standard antibiotics is undesirable, time-consuming, and an ineffective means to eliminate mycoplasmas. Minerva Biolabs developed an innovative methode based on the biological reagent Mynox. A single treatment over one pa...

Large quantities of sludge are produced in biological wastewater treatment. Sludge has a high putrescibility and therefore has to be stabilizsed in order to enable an environmentally safe utilization or disposal. The anaerobic digestion is the standard technique to stabilize the sludge. Digestion produces biogas and reduces the amount of organic matter. The amount of excess sludge production fr...

The aim of the present study was to establish a cell model of Alzheimer's disease (AD) and investigate the neurotoxic effects of β-amyloid (Aβ) on the cytoskeleton. PC12 cells were cultured and treated with Aβ25‑35, and cell survival was analyzed with the MTT assay. Cell apoptosis was visualized using 4',6-diamidino-2-phenylindole staining and the terminal deoxynucleotidyl transferase dUTP nick...