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Effect of Spirulina maxima on Postprandial Lipemia in Young Runners: A Preliminary Report
Patricia Victoria Torres-Durán,Aldo Ferreira-Hermosillo,Arnulfo Ramos-Jiménez,Rosa Patricia Hernández-Torres,Marco Antonio Juárez-Oropeza 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.8
Trained people exhibit low plasma concentrations of triacylglcyerols in both fasting and postprandial states. Exercise practice is commonly believed to improve postprandial lipemia. In addition, elevated postprandial lipemia is an indicator of poor lipid clearance, and it has been associated with atherosclerosis, insulin resistance, and obesity. Spirulina maxima is an edible microorganism with a high nutritional value. When it is consumed, beneficial properties to health have been demonstrated, such as hypolipemic and antihypertensive properties in human beings. This work evaluates the effects of orally administrated S. maxima on postprandial lipemia in a young Mexican sporting population after 15 days of consumption,as a possible alternative treatment to improve their lipid clearance. Forty-one runners (10–26 years old; 21 men and 20women) volunteered to participate in the study. All of them were physically active for at least 1 year before the study and were not undergoing training during the study. The subjects consumed 5 g of Spirulina during 15 days. Before and after the treatment with Spirulina, they consumed (12 h fasting) a standardized meal with high fat content (53.2% total calories). Postprandial lipemia was measured at 1.5, 3, and 4.5 h after the fatty meal. Fasting plasma triacylglycerol (TAG) concentrations were lower after Spirulina treatment than before treatment. In addition, the postprandial area under the curve of TAG concentrations was lower after the treatment with Spirulina. Sixty-two percent of the youngest runners (10–16 years) studied exhibited the best response to the treatment. Orally administered S. maxima decreased postprandial lipemia in sporting teenagers. The youngest people were the most responsive to the beneficial effects of Spirulina on postprandial lipemia.
Patricia Giovanella,Lídia de Azevedo Duarte,Daniela Mayumi Kita,Valéria Maia de Oliveira,Lara Durães Sette 한국미생물학회 2021 The journal of microbiology Vol.59 No.7
Soil contamination with diesel oil is quite common duringprocesses of transport and storage. Bioremediation is considereda safe, economical, and environmentally friendly approachfor contaminated soil treatment. In this context, studiesusing hydrocarbon bioremediation have focused on totalpetroleum hydrocarbon (TPH) analysis to assess process effectiveness,while ecotoxicity has been neglected. Thus, thisstudy aimed to select a microbial consortium capable of detoxifyingdiesel oil and apply this consortium to the bioremediationof soil contaminated with this environmental pollutantthrough different bioremediation approaches. Gas chromatography(GC-FID) was used to analyze diesel oil degradation,while ecotoxicological bioassays with the bioindicatorsArtemia sp., Aliivibrio fischeri (Microtox), and Cucumissativus were used to assess detoxification. After 90 days ofbioremediation, we found that the biostimulation and biostimulation/bioaugmentation approaches showed higher ratesof diesel oil degradation in relation to natural attenuation(41.9 and 26.7%, respectively). Phytotoxicity increased in thebiostimulation and biostimulation/bioaugmentation treatmentsduring the degradation process, whereas in the Microtoxtest, the toxicity was the same in these treatments as thatin the natural attenuation treatment. In both the phytotoxicityand Microtox tests, bioaugmentation treatment showed lowertoxicity. However, compared with natural attenuation, thisapproach did not show satisfactory hydrocarbon degradation. Based on the microcosm experiments results, we concludethat a broader analysis of the success of bioremediation requiresthe performance of toxicity bioassays.