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Marta Lopez-Garcıa,Roberto Herrero,Manuel E. Sastre de Vicente,Pablo Lodeiro 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.4
The macroalgae Sargassum muticum was selected for the treatment of solutions containing Cr(VI). Very acidic pH values were established as optimal for Cr(VI) reduction. Algae chemical modification reduced equilibrium time to 4 h. First order kinetic model was used to describe the reduction kinetic of Cr(VI). A column experiment allowed to distinguish the processes occurring during Cr(VI) elimination: its reduction to Cr(III) and the subsequent adsorption of this species formed. Under the selected conditions the biomass was capable of reducing all the incoming Cr(VI) during 77 h. Industrial wastewaters from chrome plating industry were also tested for chromium removal.
Angelica S. Gonzalez-Garibay,Alfonso Lopez-Vazquez,Jesus Garcıa-Banuelos,Sergio Sanchez-Enrıquez,Ana S. Sandoval-Rodrıguez,Susana Del Toro Arreola,Miriam R. Bueno-Topete,Jose F. Munoz-Valle,Mercedes E 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.3
Excess of visceral adipose tissue (VAT) characteristic of obesity leads to a proinflammatory state disrupting the insulin signaling pathway, triggering insulin resistance (IR) and inflammation, the main processes contributing to obesity comorbidities. Ursolic acid (UA), a pentacyclic triterpenoid occurring in a variety of plant foods, exhibits anti-inflammatory properties. The aim of this study was to evaluate UA effects on IR, hyperinsulinemia, and inflammation in experimental diet-induced obesity. Forty male Wistar rats were randomly assigned to eight groups (n = 5). One group was used for time 0. Three groups were labeled as OBE (control): receiving high-fat diet (HFD; fat content 45.24% of energy) during 3, 6, or 9 weeks; three groups UA-PREV: exposed to simultaneous HFD and UA during 3, 6, or 9 weeks to evaluate UA preventive effects; one group UA-REV: receiving HFD for 6 weeks, followed by simultaneous HFD and UA for three additional weeks to analyze UA reversal effects. Measurements were performed after 3, 6, or 9 weeks of treatment. Adiposity was calculated by weighing VAT after sacrifice. Serum markers were quantified through colorimetric and enzyme-linked immunosorbent assay methods. VAT adipokines RNAm expression was evaluated by quantitative reverse transcriptase–polymerase chain reaction. Data were analyzed by Kruskal–Wallis and Mann–Whitney U tests. UA significantly decreased adiposity, IR, hyperinsulinemia, triacylglycerides, and cholesterol levels, and also VAT mRNA expression of MCP-1 (monocyte chemoattractant protein-1), IL (interleukin)-1β and IL-6, concomitantly increasing adiponectin levels. UA metabolic effects demonstrated in this study support its potential therapeutic utility to improve IR, hyperinsulinemia, and inflammation observed in obesity and diabetes.
S. E. Herrera-Rodrıguez,R. J. Lopez-Rivera,E. Garcıa-Marquez,M. Estarron-Espinosa,H. Espinosa-Andrews 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.2
This study examined the impact of emulsifiertype on the physicochemical characteristics and antifungalcapacity of oregano oil-in-water emulsions: Tween 80,hydroxylated soy lecithin, and gum arabic. GC/MS analysisshowed that the major components of the Lippia graveolensessential oils were thymol (31.7%), p-cymene(18.7%), and carvacrol (14.6%). The oil-in-water emulsionswere made using ultrasonic technology in whichthymol and carvacrol quantities were 12.26–13.67 g/L and5.6–6.2 g/L, respectively. The droplet size of the emulsionsfollowed the next descendent order: gum arabic[lecithin[T80. The zeta potential of the emulsionsfavored the stability against coalescence. Finally, theantifungal activity of the emulsions was evaluated, inwhich, 30 lL/mL of gum arabic or hydroxylated soylecithin emulsions inhibited the growth of Candida albicans. The result suggests that Mexican oregano essentialoil emulsions can be used as an antifungal against of C. albicans.