Results: 9

Evaluation of Chromium and Manganese levels in sports supplements using graphite furnace atomic absorption spectrometry

Rev. Nutr. (Online); 33 (), 2020
ABSTRACT Objective In this paper, we studied three different types of ordinary sports supplements containing whey protein: whey protein-based ones, hypercaloric ones, and protein bars. Methods A sample preparation procedure was studied employing microwave-assisted wet digestion in order to determine th...

Demetallization of Enterococcus faecalis biofilm: a preliminary study

J. appl. oral sci; 26 (), 2018
Abstract Objectives To determine the concentration of calcium, iron, manganese and zinc ions after the application of chelator to Enterococcus faecalis biofilms. Material and Methods Fifty bovine maxillary central incisors were prepared and inoculated with E. faecalis for 60 days. The following were ...

Nutrition facts and limits for micronutrients in tree species used in urban forestry

An. acad. bras. ciênc; 89 (3), 2017
ABSTRACT There is a huge lack of researches that evaluate the nutritional limits in tree species used in urban forestry, especially in terms of micronutrients. This study aimed to establish limits and range of micronutrients levels for the proper development of tree species utilized in urban forestry. Th...

Validación de la determinación de manganeso, molibdeno y zinc por plasma de acoplamiento inductivo

Se describe la validación de un método para la determinación de manganeso, molibdeno y zinc, a niveles traza, en soluciones acuosas, mediante espectroscopia de emisión-plasma inductivo de argón. Se optimizó y validó la cuantificación de manganeso, molibdeno y zinc en solución acuosa ácida usand...

Cadmium toxicity affects chlorophyll a and b content, antioxidant enzyme activities and mineral nutrient accumulation in strawberry

Biol. Res; 48 (), 2015
BACKGROUND: Cadmium (Cd) is well known as one of the most toxic metals affecting the environment and can severely restrict plant growth and development. In this study, Cd toxicities were studied in strawberry cv. Camarosa using pot experiment. Chlorophyll and malondialdehyde (MDA) contents, catalase (CAT...

Influence of rootstocks on growth, yield, fruit quality and leaf mineral element contents of pear cv. 'Santa Maria' in semi-arid conditions

Biol. Res; 47 (), 2014
BACKGROUND: Rootstocks play an essential role to determining orchard performance of fruit trees. Pyrus communisand Cydonia oblonga are widely used rootstocks for European pear cultivars. The lack of rootstocks adapted to different soil conditions and different grafted cultivars is widely acknowledged in ...

Evaluación toxicológica de cromo, hierro, manganeso y sulfato de las aguas de mr y especies marinas de la Bahia de San Nicolas del Distrito de Marcona

Se evalua el riesgo de contaminación por cromo, hierro, manganeso y sulfatos en especies marinas de consumo habitual, procedentes de la Bahía de San Nicolas de Marcona, resultado de la actividad minera que se realiza en la zona. El cromo, hierro y manganeso se determinó por espectrofotometría de abso...