[Nutritional evaluation of postmenopausal women treated at a nutrition clinic in the north of the State of Rio Grande do Sul, Brazil].

The menopause is the stage of a woman's life when the transition from the reproductive to the non-reproductive condition occurs. The objective was to conduct a nutritional assessment of 30 postmenopausal women aged between 40 and 65, by compiling data from the first consultation of nutritional records related to food intake, as well as anthropometric and biochemical data. It was observed that the average result found for body mass index was considered high, being characterized as overweight (30.

Ultrasound-assisted enzymatic transesterification of methyl benzoate and glycerol to 1-glyceryl benzoate in organic solvent.

The aim of this work is to report the enzymatic transesterification production of 1-glyceryl benzoate under ultrasound irradiation, using a commercial immobilized lipase, Novozym 435. Firstly, a preliminary evaluation was carried out at 2, 4 and 6h, at constant temperature of 50 °C, methyl benzoate to glycerol molar ratio of 1:1 and 5.5 wt% of enzyme concentration.

Enzyme-catalyzed production of 1-glyceryl benzoate in compressed n-butane.

The aim of this work is to report the enzymatic transesterification production of 1-glyceryl benzoate in compressed n-butane, using a commercial immobilized lipase, Novozym 435. For this purpose, reaction experiments were performed on the basis of phase equilibrium data of the system methyl benzoate/n-butane, measured using the static synthetic method with a variable-volume view cell in the temperature range of 313.15-343.

Oxidases from mate tea leaves (Ilex paraguariensis): extraction optimization and stability at low and high temperatures.

Mate (Ilex paraguariensis) is an important natural product in the economic and cultural context of Brazil. Peroxidase and polyphenol oxidase have been responsible for quality deterioration and browning in mate. The objective of this work was to investigate a methodology of extraction and enzymatic activity determination of oxidases present in mate tea leaves and to evaluate the oxidases stability.