scholarly journals Nutritional potential of leaves and tubers of crem (Tropaeolum pentaphyllum Lam.)

2018 ◽  
Vol 31 (4) ◽  
pp. 423-432 ◽  
Author(s):  
Vanessa Bernardi BRAGA ◽  
Maitê de Moraes VIEIRA ◽  
Ingrid Bergman Inchausti de BARROS
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Chemical Composition ◽  
Vitamin C ◽  
Dietary Intake ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Gravimetric Analysis ◽  
High Potassium ◽  
Nutritional Potential

ABSTRACT Objective To determine the centesimal composition of minerals, fatty acids and vitamin C of leaves and tubers of crem, and to discuss the nutritional potential of the T. pentaphyllum species. Methods The centesimal composition of protein, lipid, fiber, ash and carbohydrate was determined by gravimetric analysis. Mineral composition was determined by optical emission spectrometry. Vitamin C was determined by dinitrophenylhydrazine method. Fatty acids were determined by gas chromatography. The percentage of recommended dietary intake of leaves and tubers of crem was calculated for each nutrient. Results A high content of fibrous fraction (63.07g/100g), potassium (4.55g/100g), magnesium (553.64mg/100g) and sulfur (480.79mg/100g) was observed in the chemical composition of leaves. In tubers, a high carbohydrate content was observed, with 62.60g/100g of starch and 3.43g/100g of fiber, as well as high potassium (0.58g/100g), sulfur (447.14g/100), calcium (205.54g/100g) and phosphorus (530.07g/100g) levels. The vitamin C content of tubers was 78.43mg/100g and the linoleic acid content was 0.455g/100g. The intake of 100g of crem leaves may contribute with 65% of the recommended dietary intake of sulfur. The intake of 100g of crem tuber may contribute with 106% of the recommended dietary intake of sulfur and 21% of the recommended dietary intake of Vitamin C. Conclusion The chemical composition of crem (Tropaeolum pentaphyllum Lam.) tubers and leaves demonstrated an important contribution of nutrients, mainly sulfur, vitamin C and linoleic acid in its tubers, indicating a high nutritional potential of this species.

Mechanical Behaviour of CoCrMo Alloy with Si Content

2015 ◽  
Vol 754-755 ◽  
pp. 1017-1022 ◽  
Author(s):  
Petrică Vizureanu ◽  
Mirabela Georgiana Minciună ◽  
Dragoş Cristian Achiţei ◽  
Andrei Victor Sandu ◽  
Kamarudin Hussin
Keyword(s):  
Tensile Strength ◽  
Chemical Composition ◽  
Testing Machine ◽  
Base Material ◽  
Optical Emission ◽  
Experimental Tests ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Standard Samples

.The paper present aspects about the obtaining of non-precious dental alloys (type CoCrMo and CoCrMoSi7), the determination of chemical composition by optical emission spectrometry and the experimental tests for determining the tensile strength, made on standard plate samples. The base material used in experiments was a commercial alloy, from CoCrMo system, which belongs to the class of dental non-precious alloys, intended to medical applications. The obtaining of studied alloy was made on arc re-melting installation, under vacuum, type MRF ABJ 900. The process followed to realize a rapid melting, with a maximum admissible current intensity. The samples for tests were obtained by casting in an electric arc furnace, under vacuum, in optimal conditions for melting and solidification and processing by electro-erosion, to eliminate all the disturbing factors which come by processing conditions for the samples. The determination of chemical composition for cobalt based alloys, by optical emission spectrometry, was made on SpectromaxX equipment with spark. The electrical discharge is made with the elimination of an energy quantity, fact which determine plasma forming and light issue. Tensile tests for standard samples, made from cobalt based alloy, was made on Instron 3382 testing machine, and assisted by computer. The obtained results are: elongation, elasticity modulus, tensile strength and offer complete information about the analyzed mechanical properties. For the certitude of obtained experimental results, the tests were made on samples with specific dimensions according ISO 6892-1:2009(E) standard, both for the tensile strength, and also machine operation.

Altered Levels of n-6/n-3 Fatty Acids in Rat Heart and Storage Fat following Variable Dietary Intake of Linoleic Acid

1985 ◽  
Vol 29 (5) ◽  
pp. 279-288 ◽  
Author(s):  
John.S. Charnock ◽  
Peter.L. McLennan ◽  
Mahinda.Y. Abeywardena ◽  
Gordon.R. Russell
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Dietary Intake ◽  
Rat Heart ◽  
And Storage

scholarly journals Phytochemical Composition and Nutritional Value of Pot-Grown Turnip-Rooted and Plain and Curly-Leafed Parsley Cultivars

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1416 ◽  
Author(s):  
Ângela Fernandes ◽  
Nikolaos Polyzos ◽  
Spyridon A. Petropoulos ◽  
José Pinela ◽  
Elizandra Ardohain ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Chemical Composition ◽  
Plant Growth ◽  
Malic Acid ◽  
Mediterranean Region ◽  
Nutritional Value ◽  
Linoleic Acid Content ◽  
Total Sugars ◽  
Phytochemical Composition

In the present study plant growth, nutritional value and chemical composition of leaves from twenty-five plain-leafed, curly-leafed and turnip-rooted parsley cultivars were evaluated. Total fresh yield was higher for the plain-leafed cv. Rialto Bejo: 192 ± 11 g/pot, while significant differences were observed between the three types in the nutritional parameters, except for the carbohydrates content. The most abundant organic acid was malic acid (5.22–6.88 g/100 g dw), while the total sugars content did not differ significantly among the tested cultivar types. α-tocopherol was the major tocopherol detected in amount that ranged between 14.76–30.32 mg/100 g dw. The main fatty acids were α-linolenic and linoleic followed by palmitic acid, while only linoleic acid content being different among the cultivar types. In conclusion, the existing diversity in the parsley genotypes could be valorised to increase the agrobiodiversity in the broader Mediterranean region through the introduction of less cultivated curly-leafed and turnip-rooted types.

scholarly journals Chemical composition, vitamins, and minerals of family farming biribiri (Averrhoa bilimbi L.) in the Middle Doce River region, Minas Gerais, BrazilTítulo 12

2022 ◽  
Vol 52 (3) ◽  
Author(s):  
Jéssica Nunes Ferreira ◽  
Helena Maria Pinheiro-Sant’Ana ◽  
Ceres Mattos Della Lucia ◽  
Reinaldo Duque Brasil Landulfo Teixeira ◽  
Leandro de Morais Cardoso ◽  
...  
Keyword(s):  
Vitamin E ◽  
Chemical Composition ◽  
Vitamin C ◽  
Dietary Fiber ◽  
Minas Gerais ◽  
Emission Spectrometry ◽  
Fluorescence Detector ◽  
Energy Value ◽  
River Region ◽  
Doce River

ABSTRACT: This study evaluated physical characteristics, chemical composition, content of vitamin C, vitamin E, carotenoids, and minerals in biribiri fruits (Averrhoa bilimbi) from the Middle Doce River region (Minas Gerais, Brazil). Titratable acidity was determined by volumetric neutralization, pH by direct potentiometry, soluble solids by refractometry, humidity by gravimetry, ash by calcination in muffle, proteins by the micro-Kjeldahl method, dietary fiber by non-enzymatic gravimetric method and lipids using a Soxhlet extractor. Carotenoids and vitamin C were analyzed by high-performance liquid chromatography (HPLC) and vitamin E by HPLC with fluorescence detector. Fourteen minerals were analyzed by inductively coupled plasma atomic emission spectrometry. Biribiri showed high yield of edible portion (100%), low lipid, protein and carbohydrate content, and; consequently, low total energy value (25.36 kcal 100 g-1). The fruit also showed low dietary fiber content (0.62 g 100 g-1), total vitamin E (17.62 µg 100 g-1), total carotenoids (0.32 g 100 g-1), and high vitamin C, zinc, copper, iron content, manganese, molybdenum and chrome content. Regarding the heavy metals, the fruit showed no cadmium, and traces of aluminum and nickel. In conclusion, biribiri presented low energy value and expressive contents of dietary fibers, vitamin C, iron, manganese, molybdenum, chromium, zinc, and copper.

Metal Concentrations in Samples of Frozen Cephalopods (Cuttlefish, Octopus, Squid, and Shortfin Squid): An Evaluation of Dietary Intake

2017 ◽  
Vol 80 (11) ◽  
pp. 1867-1871 ◽  
Author(s):  
D. Sangiuliano ◽  
C. Rubio ◽  
A. J. Gutiérrez ◽  
D. González-Weller ◽  
C. Revert ◽  
...  
Keyword(s):  
Health Risk ◽  
Dietary Intake ◽  
Toxic Metals ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Common Squid ◽  
Important Health ◽  
Cadmium And Lead

ABSTRACT Cephalopods are an important source of nutrients and some of the most widely consumed marine foods. However, because of contamination of the oceans and the bioaccumulative nature of toxic metals, these foods may pose a health risk. For this reason, the concentrations of some trace elements (chromium [Cr], lithium, strontium [Sr], copper [Cu], and nickel) and toxic metals (aluminum [Al], cadmium, and lead) were determined in 65 frozen samples of cuttlefish, octopus, common squid, and shortfin squid by inductively coupled plasma optical emission spectrometry to evaluate dietary intake and toxic risk. Sr was the major trace element (3.03 mg/kg) in cuttlefish; however, Cu (1.57 mg/kg) was found in the highest concentration in common squid. Among the toxic metals, Al had the highest concentration (3.09 mg/kg) in common squid. Al can pose an important health risk to individuals with kidney problems and to children because these groups are most vulnerable to the toxic effects. Significant differences among the four cephalopod types were found in the concentrations of most of the metals examined. Taking into account the average consumption of cephalopods, the contribution of toxic metals does not pose a risk to the health of adults.

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