نتایج جستجو برای: se hplc
تعداد نتایج: 216982 فیلتر نتایج به سال:
Objetivo: elaborar una bebida por fermentación alcohólica y la cuantificación de flavonoides del zumo Citrus x clementina (naranja). Metodología: se utilizó el método levadura variedad Saccharomyces cerevi-siae, fermento jugo naranja con densidad 1,050 g/cm³ 5 semanas cuantificó los cromatografía HPLC. Resultados: después las analizó que fermen-tación tuvo un 11 % alcohol hesperidina 13,9 mg/10...
BACKGROUND In contrast to the several reports of alkaline extracts (Sasa-health, SE), no study of flavonoids from the leaves of S. senanensis has been reported. Four flavonoids were isolated from this plant species and their biological activities were investigated. MATERIALS AND METHODS Luteolin 6-C-β-D-glucoside [1], luteolin 7-O-β-D-glucoside [2], luteolin 6-C-α-L-arabinoside [3] and tricin...
Este trabalho apresenta um estudo da degradação do herbicida diuron utilizando os anodos Ti/RuxTi(1-x)O2 e Ti/IrxTi(1-x)O2 (x = 0,3, 0,5 e 0,7). A investigação da degradação foi conduzida na presença e na ausência de cloreto. O estudo da remoção do herbicida em função da densidade de corrente na ausência de cloreto rendeu remoções de 41 e 49% de demanda química de oxigênio (COD) e remoções de 1...
Human glutathione transferases (GSTs) from Alpha (A), Mu (M) and Theta (T) classes exhibited glutathione peroxidase activity towards phospholipid hydroperoxide. The specific activities are in the order: GST A1-1>GST T1-1>GST M1-1>GST A2-2>GST A4-4. Using a specific and sensitive HPLC method, specific activities towards the phospholipid hydroperoxide,1-palmitoyl-2-(13-hydroper oxy-cis-9, trans-1...
Selenium (Se) is considered as an essential element for human body. Selenized probiotic fermented milk drink (DOOGH) as a functional beverage to increase Se available in body. The predominate sugar, protein and mineral ion of Iranian yoghurt drink (DOOGH) are lactose, casein and calcium, respectively. Different levels of Selenium (2.5 – 3- 3,5- 4 and 4.5) is prepared and its suitability based...
The changes in density and biomass of macrobenthos were seasonally investigated from winter 2005 till fall 2006 in southern Caspian Sea. Samples were taken with a 225cm2 Van Veen grab from depths of 7 and 20 meters along two transects: Line 8 area (western part) and Radio Darya area (eastern part). Totally, 5 classes of macrobenthos were identified of which the most abundant populations were Po...
Salt stress is a serious problem facing plant growth and development. Selenium (Se) could improve plant growth and reduced stress. Hence, the aim of this study was to determine whether the Se application could alleviate salinity stress negative effects on Melissa officinalis L. Different salinity levels in this research were control (0), 50, 100 and 200 mM. Simultaneously, sodium selenate (Se) ...
Um procedimento simples, rápido e preciso de cromatografia líquida de alta eficiência (HPLC) foi desenvolvido para a determinação de oxadiazona em formulações concentradas de pesticidas emulsificáveis. 20 μL de amostra, diluída em acetronitrila, foram injetados em uma coluna Kromasil C18 (250 × 4,6 mm, 5 μm), usando acetonitrila:água (80:20) como fase móvel, numa velocidade de fluxo de 1 mL min...
A novel RIA was used to examine the release of agouti-related protein-like immunoreactivity (AGRP-LI) from perfused rat hypothalamic tissue slices and to characterize AGRP-LI in rat serum. A continuous low level basal AGRP-LI release was observed from hypothalami of rats fed ad libitum before the rats were killed. Basal AGRP-LI release was 3-fold greater in rats fasted 48 h. In fasted animals l...
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