نتایج جستجو برای: 25 non organic acids
تعداد نتایج: 2021805 فیلتر نتایج به سال:
Dissolved organic nitrogen (DON) is actively involved in N cycling and transformation processes the ocean, yet how this large pool formed remains elusive. Here we incubated 15N-labeled individual amino acids (Ala, Val, Phe) seawater monitored their fates over 21 days. About 25%–45% of Phe-N Val-N were transformed to “uncharacterizable DON,” as compared only about 6% for Ala-N, indicating format...
Consumption of fruit juices product containing various bioactive compounds that are good for health is a current trend. Bignay tropical contains high anthocyanin and can increase its antioxidant ability by adding aloe vera gel (AVG). also organic acids, namely gallic, ferulic, ellagic acids. AVG associated with many transparent or colorless polysaccharides functional chemical compounds. This re...
Erratum to: Profiling of fermentative metabolites in Kimchi: Volatile and non-volatile organic acids
1. BENNET-CLARK, T. A. and KEFFORD, N. P. Chromatography of the growth substances in plant extracts. Nature 171: 645-647. 1953. 2. BENTLEY, L. E. Occurrence of malonic acid in plants. Nature 170: 847-848. 1952. 3. BRYANT, F. and OVERELL, B. T. Quantitative chromatographic analysis of organic acids in plant tissue extracts. Biochim. Biophys. Acta 10: 471-476. 1953. 4. BUCH, M. L., MONTGOMERY, R....
Demand for organic meat is partially driven by consumer perceptions that organic foods are more nutritious than non-organic foods. However, there have been no systematic reviews comparing specifically the nutrient content of organic and conventionally produced meat. In this study, we report results of a meta-analysis based on sixty-seven published studies comparing the composition of organic an...
nanosized hydroxyapatite and reversed-phase high performance liquid chromatography (RP-HPLC) for the simultaneous determination of organic acids (oxalic, malic, malonic, citric, and fumaric) and nitrate in xylem saps of the hyperaccumulator Alyssum murale is presented in this study. The optimum experimental conditions for the separation and determination of organic acids and nitrate are studied...
The structural composition of PM2.5 monitored in the atmosphere is usually divided by the analysis of organic carbon, black (also called elemental) carbon, and inorganic salts. The characterization of the chemical composition of aerosols represents a significant challenge to analysts, and studies are frequently limited to determination of aerosol bulk properties. To better understand the potent...
This study was conducted in order to evaluate effect of organic acids on broiler performance. Totally 180 chickens of Ross 308 hybrid were divided to three groups. Experimental group no. 1 (n=60) received acetic acid in drinking water with concentration 0.25% from day 1 to day 42. Experimental group no. 2 (n=60) received citric acid in drinking water with concentration 0.25% from day 1 to day 4...
This article presents the distribution of the dithiothreitol-based (DTT) redox activity of water-soluble airborne particulate matter (PM) from two urban sites in the city of Thessaloniki, northern Greece in four size ranges (<0.49, 0.49–0.97, 0.97–3.0 and >3 μm). Seasonal and spatial variations are examined. The correlations of the mass-normalized DTT activity with the content of PM in water-so...
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