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RISS 인기검색어
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- 저자 : lez-Moreiras, Mariano (검색결과 2 건)
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Adriana R. Schultz Moreira,Raúl Olivero-David,Miguel Vázquez-Velasco,Laura González-Torres,Juana Benedí,Sara Bastida,Francisco J. Sánchez-Muniz 한국식품영양과학회 2014 Journal of medicinal food Vol.17 No.8
There is a general assumption that seaweeds are hypocholesterolemics and antioxidants. However, controversial results suggest specific properties for each individual alga. This study aims to assess the effect of including Sea Spaghetti alga (S) in a restructured-pork (RP) diet, both enriched and not enriched with dietary cholesterol, on arylesterase (AE) activity and lipoprotein concentration and composition of Wistar rats. Four groups of 10 growing male Wistar rats were each fed a mix of 85% AIN-93M diet and 15% freeze-dried RP for 5 weeks. The control group (C) consumed control RP-C; the S group consumed RP-S with 5% seaweeds; the Chol-C group consumed the C diet but enriched with cholesterol (2.43%) and cholic acid (0.49%); the Chol-S group consumed the S diet but enriched with cholesterol and cholic acid. AE activity was five times higher (P < .01) in S compared with C rats, but three times lower in Chol-S compared with Chol-C rats (P < .01). The Chol-C diet induced hypercholesterolemia but reduced triglycerides (TG), giving rise to the presence of very low-density lipoprotein (VLDL) that was enriched in cholesterol. The Chol-S diet partially blocked (P < .001) the hypercholesterolemic induction of the Chol-C diet, and reduced TG levels (P < .05) with respect to S rats. The cholesterol supplementation increased total cholesterol, VLDL-cholesterol, and intermediate-density lipoprotein + LDL-cholesterol (IDL + LDL)-cholesterol (P < .001) in Chol-C rats, but the effect was lower in the Chol-S diet. In conclusion, RP-S increases the antioxidant capacity within a noncholesterol enriched diet while improving the lipoprotein profile within a cholesterol-enriched diet.
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Catalytic borylation of methane
Smith, Kyle T.,Berritt, Simon,Gonzá,lez-Moreiras, Mariano,Ahn, Seihwan,Smith III, Milton R.,Baik, Mu-Hyun,Mindiola, Daniel J. American Association for the Advancement of Scienc 2016 Science Vol.351 No.6280
<P>Despite steady progress in catalytic methods for the borylation of hydrocarbons, methane has not yet been subject to this transformation. Here we report the iridium-catalyzed borylation of methane using bis(pinacolborane) in cyclohexane solvent. Initially, trace amounts of borylated products were detected with phenanthroline-coordinated Ir complexes. A combination of experimental high-pressure and high-throughput screening, and computational mechanism discovery techniques helped to rationalize the foundation of the catalysis and identify improved phosphine-coordinated catalytic complexes. Optimized conditions of 150 degrees C and 3500-kilopascal pressure led to yields as high as similar to 52%, turnover numbers of 100, and improved chemoselectivity for monoborylated versus diborylated methane.</P>
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