Araştırmada, Trachystemon orientalis L.'nin (Kaldirik, Somar) sığır kıymasının raf ömrüne etkisi araştırılmıştır. Kurutulmuş L. yaprakları farklı solventler (petrol eter, metanol ve su) ile muamele edildikten sonra liyofilize edilmiştir. Liyofilize ekstraktlar kıymaya seviyelerde (250 ppm 500 ppm) ilave edilmiş kıyma örnekleri 2±1 °C'de aerobik olarak depolanmıştır. Depolamanın 1., 24., 48. 72....

Temu ireng (Curcuma aeruginosa Roxb.) adalah tanaman obat tradisional yang mengandung senyawa fenol, steroid, triterpenoid, flavonoid, alkaloid, tanin, saponin. Penelitian ini menggunakan pelarut polar yaitu metanol dan nonpolar n-heksana untuk menarik sesuai dengan sifatnya. Tujuan penelitian melihat aktivitas antioksidan ekstrak rimpang temu ireng. Proses ekstraksi dilakukan cara maserasi. Me...

2,4-Dichlorophenoxybutyric acid (2,4-DB) is principally used in the United States on peanuts, soybeans, and alfalfa. In Europe, it is used on cereals, undersown cereals, lucerne (alfalfa), clover, and clover mixtures. Doses in the 2-year chronic/oncogenicity rat study were 0, 60, 600, and 1800 ppm. No evidence of an oncogenic potential for 2,4-DB was evident and the study clearly established a ...

Two experiments were conducted to evaluate the effect of dietary L-carnitine on growth performance and body composition of early-weaned pigs. In Exp. 1, 120 weanling pigs (initially 5.6 kg and 19 +/- 2 d of age) were allotted in a 3 x 2 factorial with four pigs per pen and five replications (pens) per treatment. Main effects from d 0 to 14 after weaning included dietary L-carnitine (0, 500, or ...

Proton nuclear magnetic resonance spectroscopy is a unique method to monitor noninvasively the concentrations of cerebral metabolites. N-Acetyl-L-aspartate, the concentration of which is assumed to be stable during hypoxia, has been used to form ratios with lactate. To determine the stability of the signal from N-acetyl-L-aspartate, we used a model of graded hypoxia in rats to monitor the perce...

Groups of male and female Fischer 344 rats, B6C3F1 mice, and Hartley guinea pigs were exposed once for 6 hr to mean concentrations of 10.5, 5.4, 2.4, 1.0, or 0 (control) ppm of methyl isocyanate (MIC) vapor. Rats and mice were also exposed to 20.4 ppm of MIC. The majority of deaths occurred during postexposure days 1 through 3. The 6-hr LC50 values (with 95% confidence limits) were 6.1 (4.6 to ...

Polymorphonuclear leukocyte (PMN)-mediated acute lung injury from ischemia/reperfusion (I/R) remains a major cause of morbidity and mortality in critical care medicine. Here, we report that inhaled low-dose carbon monoxide (CO) and intravenous resolvin D1 (RvD1) in mice each reduced PMN-mediated acute lung injury from I/R. Inhaled CO (125-250 ppm) and RvD1 (250-500 ng) each reduced PMN lung inf...

In this study, we prepared chitosan/Fe(III)/deferoxamine nanoparticles with unimodal size distribution (hydrodynamic diameter ca. 250 nm, zeta potential 32 mV). The elaborated are characterized by outstanding in vitro and vivo antibacterial activity, which exceeds even that of commercial antibiotics ampicillin gentamicin. Moreover, the non-toxic. We found introduction iron ions into chitosan ma...

The antimicrobial properties of copper have been recognized for several years; applying these properties to the prevention of diseases such as bovine mastitis is a new area of research. The aim of the present study was to evaluate in vitro the antimicrobial activity of copper on bacteria isolated from subclinical and clinical mastitis milk samples from two regions in Chile. A total of 327 micro...

This study was carried out to determine the response of birdsfoot trefoil salt stress during germination and seedling growth. The seeds (Sarıyıldız variety) used as material. In study; 6 different doses NaCl (pure water (control), 250 ppm, 750 2500 5000 10000 ppm) applied emergence. Germination experiment in darkness (20±2 °C) petri dishes according completely randomized design with 4 replicati...