Search results for "PRODUCTS"
showing 10 items of 980 documents
One-year characterization of organic aerosol markers in urban Beijing: Seasonal variation and spatiotemporal comparison
2020
Abstract Organic aerosol (OA) is a major component of fine particulate matter (PM); however, only 10%–30% of OA have been identified as individual compounds, and some are used as markers to trace the sources and formation mechanisms of OA. The temporal and spatial coverage of these OA markers nonetheless remain inadequately characterized. This study presents a year-long measurement of 92 organic markers in PM2.5 samples collected at an urban site in Beijing from 2014 to 2015. Saccharides were the most abundant (340.1 ng m−3) species detected, followed by phthalic acids (283.4 ng m−3). In summer, high proportions (8%–24%) of phthalic acids, n-alkanes, fatty acids, and n-alcohols indicate dom…
Antioxidant phenolic compounds recovery from Mangifera indica L. by-products by supercritical antisolvent extraction
2015
Abstract Supercritical Antisolvent Extraction (SAE) was used in the recovery of antioxidant compounds from mango by-products. The antioxidant extract was obtained by solid–liquid extraction using aqueous acetone (80% v/v) and subsequent adsorption/desorption in C18 cartridge. Recovery of antioxidants was performed by SAE using SC-CO 2 as antisolvent. The temperature and pressure parameters were varied in the range 35–45 °C and 8–15 MPa. The SAE process allowed the recovery of about 90% of the initial phenolic compounds, the best recovery was obtained at 40 °C and 10 MPa and the main compounds were mangiferin, isomangiferin, quercetin 3-O-galactoside, quercetin 3-O-glucoside, quercetin 3-O-x…
Evidence for a direct interaction of Rev protein with nuclear envelop mRNA-translocation system.
1991
The interaction of the Rev protein from human immunodeficiency virus type 1 (HIV-1) with the nucleocytoplasmic mRNA-transport system was investigated. In gel-shift assay, the recombinant Rev protein used in this study selectively bound to the Rev-responsive element (RRE) region of HIV-1 env-specific RNA. Nitrocellulose-filter-binding studies and Northern/Western-blotting experiments revealed an association constant of approximately 1 x 10(10) M-1. The Rev protein also strongly bound to isolated nuclear envelopes from H9 cells, containing the poly(A)-binding site (= mRNA carrier) and the nucleoside triphosphatase (= NTPase), which are thought to be involved in nuclear export of poly(A)-rich …
Diet matters, particularly in pregnancy – Results from MoBa studies of maternal diet and pregnancy outcomes
2014
Published version of an article in the journal: Norsk Epidemiologi. Also available from the publisher at: http://www.ntnu.no/ojs/index.php/norepid/article/view/1805/1802 Open Access Awareness that maternal diet may influence the outcome of pregnancy as well as the long-term health of mother and child has increased in recent years. A new food frequency questionnaire (FFQ) was developed and validated specifically for the Norwegian Mother and Child Cohort Study (MoBa). The MoBa FFQ is a semi-quantitative tool which covers the average intake of food, beverages and dietary supplements during the first 4 to 5 months of pregnancy. It includes questions about intakes of 255 foods and dishes and was…
Application of White Mustard Bran and Flour on Bread as Natural Preservative Agents.
2021
In this study, the antifungal activity of white mustard bran (MB), a by-product of mustard (Sinapis alba) milling, and white mustard seed flour (MF) was tested against mycotoxigenic fungi in the agar diffusion method. The results obtained were posteriorly confirmed in a quantitative test, determining the minimum concentration of extract that inhibits the fungal growth (MIC) and the minimum concentration with fungicidal activity (MFC). Since MF demonstrated no antifungal activity, the MB was stored under different temperature conditions and storage time to determine its antifungal stability. Finally, an in situ assay was carried out, applying the MB as a natural ingredient into the dough to …
Competitive reactions to market entry
2004
Grocery retailing markets are becoming more open and international. Finland is an example of a previously closed and restricted market which has recently opened its borders to foreign food products as well as food retailers. This paper describes the competitive dynamics and actions of the domestic retailers that took place when the first foreign grocery retailer entered the market. The paper concludes that the main competitive moves were related to the price of food products and to changes in product ranges. The domestic retailers imitated the concept of the entrant and added new low‐priced own brands into their product mixes. The roles of the market actors were reversed during the entry pr…
Consumers’ Behavior in Decision-Making in Foodstuff Purchasing Process
2018
The purpose of this research is developing of model of market segmentation for food consumers, as well as determination the extent of influence of various factors influencing the behavior of the Latvian consumers while making the decision on purchase of these goods. In the course of the research approaches to market segmentation of food products consumers were used, as well as statistical data for Latvian food product market, described in literature, also the results of empirical researches. As a result the model of market segmentation for food consumers was developed, the extent of influence of various factors influencing the behavior of the Latvian consumers was determined based on the co…
Homeopathic remedies and mass advertising in Spain: 1880-1910
2020
La homeopatía se introdujo en España en la década de 1830, pero vivió su época dorada a finales del siglo XIX. Tradicionalmente se había dicho que la causa era la buena respuesta de los remedios homeopáticos frente a las epidemias de cólera que sobrevinieron en las décadas de 1880 y 1890. Aquí se demuestra que la publicidad de masas actuó a gran escala para legitimar los productos homeopáticos. En primer lugar, apareció la publicidad vinculada a empresas norteamericanas que pretendían abrir un mercado global. A continuación, fue una publicidad impulsada por farmacéuticos locales convertidos en fabricantes de producos homeopáticos. A través de estas dos fases, la publicidad de masas alteró l…
Potent Inhibitor of Human Trypsins from the Aeruginosin Family of Natural Products
2021
Funding Information: We would like to thank A. Löfhjelm and L. Saari for excellent technical assistance. This work was supported by a Sigrid Jusélius Foundation grant to H.K. and the Academy of Finland funding (321809) to T.S. We would also like to thank the Erkko Foundation and Nordforsk Nordic center of Excellency NordAqua (project number #82845) and University of Helsinki’s Doctoral Programme in Microbiology and Biotechnology funding to M.N.A. D.O.A. was supported by a postdoctoral research fellowship from the São Paulo Research Foundation (FAPESP #2018/01563-2). We thank Biocenter Kuopio for the use of their facilities for molecular modeling and MD simulations. We thank the DNA Sequenci…
PLA2-mediated catalytic activation of its inhibitor 25-acetyl-petrosaspongiolide M: serendipitous identification of a new PLA2 suicide inhibitor.
2004
Abstract25-Acetyl-petrosaspongiolide M (PMAc) (1), a mild non-covalent PLA2 inhibitor, unexpectedly recovers, after incubation with bvPLA2, the ability to covalently modify the enzyme target. This study demonstrates the catalytic effect of bvPLA2 in converting 1 in its deacetylated congener petrosaspongiolide M (PM) (2), a strong covalent PLA2 inhibitor whose molecular mechanism of inhibition has already been clarified. Moreover, our findings outline the potential role of PMAc as anti-inflammatory pro-drug, by virtue of its ability of delivering the active PM agent at the site of inflammation, functioning as a suicide inhibitor.