The effect of biogel content on the some viscoelastic properties of a snail pate

Four sorts of snail pâté with different contents (0, 1, 2, 3%) of a vegetal protein (biogel) were prepared. The influence of the content of biogel on the viscoelastic characteristics of snail pâté were studied in this paper. These characteristics of snail pâté were derived from stress relaxation tests. The relaxation times and the elastic moduli, as viscoelastic characteristics, were calculated from the relaxation curves by non-linear regression. The best correspondence between experimental data and calculated curves was obtained for a mechanical model with three Maxwell elements in parallel with a lone ideal spring element. Every measurement was made in triplicate. From above viscoelastic parameters, the viscosities were calculated. Correlation between experimental relaxation curves and calculated curves were emphasized by absolute average deviation (AAD), the minimum AAD value being 0.15% and the maximum one 0.82%. The stiffest snail pâté contains 2% biogel, and the snail pâté with 3% biogel is more viscous

Physical-chemical characteristics of Triticum Aestivum wheat from three Romanian regions

The purpose of this paper was to determine the total protein content, gluten content, moisture, Zeleny sedimentation index, hectolitre mass and deformation index of T. aestivum wheat. The total protein content, gluten content, Zeleny sedimentation index and hectolitre mass was analyzed by the NIR, Infralum FT 10 cereal analyzer instruments. Humidity was determined by oven drying method and deformation index by thermostating. The samples were collected from three Romanian areas: West, South and Central. The highest total protein content was registered in wheat from South (13.5%), followed by wheat from West (13.2%), respectively from Centre (10.6%). The gluten content, in direct correlation with total protein content, was in the range 24% (wheat from Centre) - 30% (wheat from South). The deformation index of West and South samples was 5 mm, respectively 2mm of sample from Central. Wheat South Zeleny sedimentation index was 44 mL followed by West area wheat (49 mL) and wheat from Central (51 mL). The wheat samples hectolitre mass was very close, between 80.5-81.0 kg/hL. The humidity of the samples varied from 11.9% to 12.7%. The results recommend the wheat from South Romania area as being of high quality, followed by wheat from West Romania area. The wheat from Centre Romania area is of medium quality

Technical - economic evaluations experimental casuistry studied at core walnut oil

In this paper was performed study regarding guide technical and economic evaluations for core walnut oil obtained by extraction with petroleum ether, in a industrial unit considering 240 working days/year. The economic efficiency relies on analytic and synthetic indicators that give a general view about the production process. These indicators are used in order to calculate the profit of the factory enterprise. Monitoring of plant resources are essential for the development of modern agricultural production. Biodiversity of plant resources in agriculture is a biological basis for assurance the quality of world food products, for creating new cultivars, through conventional crossing process or application of biotechnology. The values obtained were as follows: total costs (736215 Euros/year), total revenues (817800 Euros/year), profit (81585 Euros/year), profit rate (11.08%), product cost (73400.63 Euros) and production costs (1301 Euros/kg). The results of technical-economic calculations estimated have positive values, suggesting that processing technology is profitable, the costs being lower than revenues, and therefore can be recommended as a potential technology solution for recovery of core walnut

The effect of mineral fertilization on heavy metals content in tomato fruit

The goal of our study was to investigate the effect of different mineral fertilization doses on the heavy metals content (Fe, Mn, Cu, Zn, Ni, Co, Cr, Pb and Cd) in tomato fruit grown in uncontaminated area. The heavy metals bioaccumulation rates have also been investigated. The experience was done in a cambric cernosium soil, with low acidity reaction, very good content in nitrogen, phosphorus and potassium and the high natural fertility potential favorable vegetables cultivation in Romanian Western Plain area. Also, this soil is very rich in iron, zinc, cooper and cobalt but fall below acceptable parameters under the laws of our country. The study was performed on control soil samples (without fertilizers) and soil samples after differentiated NPK fertilization in variable dozes: N30P30K30, N45P45K45 , N^P«,!^, and N12oP6oK6oAlthough the soil analyses showed the presence of cobalt, chromium and lead in certain concentrations, except for cadmium which is not detectable, in tomatoes grown in the investigated area these heavy metals not found. Other micronutrients were very low values, well below the legal maximum allowed in vegetables cultivated in Romania. These results suggest that this area is favorable to ecological vegetables crops

The effect of mineral fertilization on heavy metals content in tomato fruit

The goal of our study was to investigate the effect of different mineral fertilization doses on the heavy metals content (Fe, Mn, Cu, Zn, Ni, Co, Cr, Pb and Cd) in tomato fruit grown in uncontaminated area. The heavy metals bioaccumulation rates have also been investigated. The experience was done in a cambric cernosium soil, with low acidity reaction, very good content in nitrogen, phosphorus and potassium and the high natural fertility potential favorable vegetables cultivation in Romanian Western Plain area. Also, this soil is very rich in iron, zinc, cooper and cobalt but fall below acceptable parameters under the laws of our country. The study was performed on control soil samples (without fertilizers) and soil samples after differentiated NPK fertilization in variable dozes: N30P30K30, N45P45K45 , N^P«,!^, and N12oP6oK6oAlthough the soil analyses showed the presence of cobalt, chromium and lead in certain concentrations, except for cadmium which is not detectable, in tomatoes grown in the investigated area these heavy metals not found. Other micronutrients were very low values, well below the legal maximum allowed in vegetables cultivated in Romania. These results suggest that this area is favorable to ecological vegetables crops

Evaluation microelements and vitamin C content of some spices

In this paper were studied by comparison microelements (Cu, Zn, Ni, Mn, Pb, Co, Cr) and vitamin C content of some commercial spices: ground black pepper (Piper nigrum), sweet paprika, cayenne pepper (Capsicum annuum) and powder cinnamon (Cinnamomum zeylanicum). For this purpose, the mineral elements mentioned were quantified by Atomic Absorption Spectrophotometry (AAS), for their determination was used the atomic absorption spectrophotometer’s contr AA 300, Analytik Jena and the vitamin C content was analyzed by 2,6-diclorindofenol method using as standard ascorbic acid solution, 0.5 mg / ml. This work attempts to contribute to knowledge of the nutritional properties of these plants. These results may be useful for the evaluation of dietary information. Principal component analysis (PCA) was carried out for quantitative mineral concentration and vitamin C content. Among microelements, Cu, Zn and Mn were found in the highest concentration in whole investigated vegetable material

Physical-chemical characteristics of Triticum Aestivum wheat from three Romanian regions

The purpose of this paper was to determine the total protein content, gluten content, moisture, Zeleny sedimentation index, hectolitre mass and deformation index of T. aestivum wheat. The total protein content, gluten content, Zeleny sedimentation index and hectolitre mass was analyzed by the NIR, Infralum FT 10 cereal analyzer instruments. Humidity was determined by oven drying method and deformation index by thermostating. The samples were collected from three Romanian areas: West, South and Central. The highest total protein content was registered in wheat from South (13.5%), followed by wheat from West (13.2%), respectively from Centre (10.6%). The gluten content, in direct correlation with total protein content, was in the range 24% (wheat from Centre) - 30% (wheat from South). The deformation index of West and South samples was 5 mm, respectively 2mm of sample from Central. Wheat South Zeleny sedimentation index was 44 mL followed by West area wheat (49 mL) and wheat from Central (51 mL). The wheat samples hectolitre mass was very close, between 80.5-81.0 kg/hL. The humidity of the samples varied from 11.9% to 12.7%. The results recommend the wheat from South Romania area as being of high quality, followed by wheat from West Romania area. The wheat from Centre Romania area is of medium quality

The effect of biogel content on the some viscoelastic properties of a snail pate

Four sorts of snail pâté with different contents (0, 1, 2, 3%) of a vegetal protein (biogel) were prepared. The influence of the content of biogel on the viscoelastic characteristics of snail pâté were studied in this paper. These characteristics of snail pâté were derived from stress relaxation tests. The relaxation times and the elastic moduli, as viscoelastic characteristics, were calculated from the relaxation curves by non-linear regression. The best correspondence between experimental data and calculated curves was obtained for a mechanical model with three Maxwell elements in parallel with a lone ideal spring element. Every measurement was made in triplicate. From above viscoelastic parameters, the viscosities were calculated. Correlation between experimental relaxation curves and calculated curves were emphasized by absolute average deviation (AAD), the minimum AAD value being 0.15% and the maximum one 0.82%. The stiffest snail pâté contains 2% biogel, and the snail pâté with 3% biogel is more viscous