88 research outputs found

    Evaluation of toxic compounds produced during the elaboration of Syrah wines.

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    The objective of this study was to verify the occurrence of four toxic compounds (acetaldehyde, formaldehyde, ethyl carbamate and acrolein) in Syrah wines through the use of comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry detection

    Simultaneous determination of toxic compounds produced during fermentation of wine.

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    The objective of this study was to investigate the need to use of GC×GC to quantify toxic compounds (acetaldehyde, formaldehyde, ethyl carbamate and acrolein) produced during the fermentation of Syrah wine

    Phenolic content, physical-chemical composition and antioxidant activity of Syrah wines elaborated in São Francisco Valley during ripening.

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    The present work aimed to study the phenolic content, physical-chemical composition and antioxidant activity of red wines cv Syrah prepared from grapes harvested at different stages of ripeness

    Evaluating the typicality of the aroma of Syrah tropical wines from the Sub-middle São Francisco Valley employing gas chromatography coupled to olfactometry detection (GC-O).

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    With the aim to evaluate the peculiarities of wines produced in that region, this study focused on the characterization of the volatile profile and the determination of key odorant compounds in Syrah wine. Syrah wine was prepared at Embrapa Semiarido, Petrolina-PE from grapes obtained from a winery located in the city of Casa Nova-BA

    A randomized, controlled trial of 3.0 mg of liraglutide in weight management

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    BACKGROUND Obesity is a chronic disease with serious health consequences, but weight loss is difficult to maintain through lifestyle intervention alone. Liraglutide, a glucagonlike peptide-1 analogue, has been shown to have potential benefit for weight management at a once-daily dose of 3.0 mg, injected subcutaneously. METHODS We conducted a 56-week, double-blind trial involving 3731 patients who did not have type 2 diabetes and who had a body-mass index (BMI; the weight in kilograms divided by the square of the height in meters) of at least 30 or a BMI of at least 27 if they had treated or untreated dyslipidemia or hypertension. We randomly assigned patients in a 2:1 ratio to receive once-daily subcutaneous injections of liraglutide at a dose of 3.0 mg (2487 patients) or placebo (1244 patients); both groups received counseling on lifestyle modification. The coprimary end points were the change in body weight and the proportions of patients losing at least 5% and more than 10% of their initial body weight. RESULTS At baseline, the mean (±SD) age of the patients was 45.1±12.0 years, the mean weight was 106.2±21.4 kg, and the mean BMI was 38.3±6.4; a total of 78.5% of the patients were women and 61.2% had prediabetes. At week 56, patients in the liraglutide group had lost a mean of 8.4±7.3 kg of body weight, and those in the placebo group had lost a mean of 2.8±6.5 kg (a difference of -5.6 kg; 95% confidence interval, -6.0 to -5.1; P<0.001, with last-observation-carried-forward imputation). A total of 63.2% of the patients in the liraglutide group as compared with 27.1% in the placebo group lost at least 5% of their body weight (P<0.001), and 33.1% and 10.6%, respectively, lost more than 10% of their body weight (P<0.001). The most frequently reported adverse events with liraglutide were mild or moderate nausea and diarrhea. Serious events occurred in 6.2% of the patients in the liraglutide group and in 5.0% of the patients in the placebo group. CONCLUSIONS In this study, 3.0 mg of liraglutide, as an adjunct to diet and exercise, was associated with reduced body weight and improved metabolic control. (Funded by Novo Nordisk; SCALE Obesity and Prediabetes NN8022-1839 ClinicalTrials.gov number, NCT01272219.)

    Taxonomic synopsis and analytical key for the genera of Solanaceae from Rio Grande do Sul, Brazil

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