Comparative quantitative analysis of the effect of cultivar, wine growing region and vinification method on the protein profiles of some white wines

2001 ◽  
Vol 36 (7) ◽  
pp. 759-766 ◽  
Author(s):  
M. R. Sarmento ◽  
J. C. Oliveira ◽  
M. Slatner ◽  
R. B. Boulton
Keyword(s):  
Quantitative Analysis ◽  
Protein Profiles ◽  
White Wines ◽  
Growing Region

scholarly journals Analysis of viticultural potential and delineation of homogeneous viticultural zones in a temperate climate region of Romania

OENO One ◽  
2014 ◽  
Vol 48 (3) ◽  
pp. 145 ◽  
Author(s):  
Liviu Mihai Irimia ◽  
Cristian V. Patriche ◽  
Hervé Quénol
Keyword(s):  
Ecological Factors ◽  
Temperate Climate ◽  
Gis Analysis ◽  
Horizontal Differentiation ◽  
White Wines ◽  
Suitability Assessment ◽  
Climate Suitability ◽  
Continental Climate ◽  
Growing Region

<p style="text-align: justify;"><strong>Aims</strong> : To characterize the viticultural potential and delineate homogeneous viticultural zones in the Huşi wine growing region (Romania) in order to provide necessary information for viticultural zoning.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The methodology is based on a Geographic Information System (GIS) analysis of 15 ecological parameters, representative of the topography, climate and soils in temperate continental climate vineyards. Three homogeneous viticultural zones were identified : one suitable for quality white wines and red table wines ; one suitable for quality white wines ; and one suitable for white table wines, sparkling wines and wines for distillates.</p><p style="text-align: justify;"><strong>Conclusion</strong>: In order to characterize the viticultural potential, it is necessary to assess the suitability of all ecological factors that influence the quality of the grapes. Omitting one ecological factor may lead to erroneous results in suitability assessment. Climate suitability determines altitudinal differentiation of the viticultural potential, while topographical and pedological suitability determines a horizontal differentiation.</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: This study provides the necessary information for viticultural zoning in the Huşi wine growing region in Romania. The methodology allows to evaluate viticultural potential and to delineate homogeneous viticultural zones in wine growing regions with a temperate continental climate.</p>

Effect of Ion-Exchange Adsorption on the Protein Profiles of White Wines

2001 ◽  
Vol 7 (3) ◽  
pp. 217-224 ◽  
Author(s):  
M.R. Sarmento ◽  
J.C. Oliveira ◽  
M. Slatner ◽  
R.B. Boulton
Keyword(s):  
Ion Exchange ◽  
Protein Profiles ◽  
White Wines ◽  
Exchange Adsorption

Quantitative analysis of two-dimensional protein profiles of inbred lines of maize (Zea mays L.)

1991 ◽  
Vol 12 (6) ◽  
pp. 425-431 ◽  
Author(s):  
Jeri Welsh Higginbotham ◽  
J. Stephen C. Smith ◽  
Oscar S. Smith
Keyword(s):  
Zea Mays ◽  
Quantitative Analysis ◽  
Zea Mays L ◽  
Inbred Lines ◽  
Two Dimensional ◽  
Protein Profiles

scholarly journals Comparison of North Italian and South Moravian wines on the base of their antioxidant activity, phenolic composition and sensory quality

2012 ◽  
Vol 60 (8) ◽  
pp. 9-18 ◽  
Author(s):  
Mojmír Baroň ◽  
Michal Kumšta
Keyword(s):  
Sensory Quality ◽  
Phenolic Composition ◽  
White Wines ◽  
Spectrophotometric Methods ◽  
Total Anthocyanins ◽  
Health Promoting ◽  
Phenolic Substances ◽  
South Moravia ◽  
Growing Region

In the present study, antioxidant capacity, phenolic composition and sensory evaluation of selected red and white wines originating from wine-growing regions of South Moravia and North Italy (wine-growing region Trident – Alto Adige) were investigated. The sensory analysis indicated that the evaluated wine samples were very similar. As far as basic the analytical parameters were concerned, concentrations of residual sugar were significantly higher in Moravian wines. Antioxidative characteristics were estimated by means of common spectrophotometric methods (total phenols, total anthocyanins, total flavanols, DPPH and FRAP) and thereafter compared. It was found out that the compared methods were highly significantly and positively correlated as far as their results were concerned. Individual phenolic compounds were detected by means of HPLC with DAD detection. In white wines, the content of GRP products was higher and this indicated that the quality of grapes used for making Moravian wines was lower. In red Moravian wines, the content of catechins (i.e. compounds responsible for the majority of phenolic substances and considered to be health-promoting compounds) was higher. This observation was corroborated also analytically, i.e. on the base of correlation with antioxidative characteristics.

An Improved Quantitative Image Analyser

1977 ◽  
Vol 35 ◽  
pp. 226-227
Author(s):  
J.P. Fallon ◽  
P.J. Gregory ◽  
C.J. Taylor
Keyword(s):  
Feature Extraction ◽  
Quantitative Analysis ◽  
Frequency Content ◽  
General Sense ◽  
Physical Measurements ◽  
Quantitative Image ◽  
Image Analyser ◽  
Automatic Methods ◽  
Quantitative Results

Quantitative image analysis systems have been used for several years in research and quality control applications in various fields including metallurgy and medicine. The technique has been applied as an extension of subjective microscopy to problems requiring quantitative results and which are amenable to automatic methods of interpretation.Feature extraction. In the most general sense, a feature can be defined as a portion of the image which differs in some consistent way from the background. A feature may be characterized by the density difference between itself and the background, by an edge gradient, or by the spatial frequency content (texture) within its boundaries. The task of feature extraction includes recognition of features and encoding of the associated information for quantitative analysis.Quantitative Analysis. Quantitative analysis is the determination of one or more physical measurements of each feature. These measurements may be straightforward ones such as area, length, or perimeter, or more complex stereological measurements such as convex perimeter or Feret's diameter.

Quantification of Silica Uptake by Alveolar Macrophages - An Emperical Scanning Electron Microprobe Method

1982 ◽  
Vol 40 ◽  
pp. 332-333
Author(s):  
V. V. Damiano ◽  
R. P. Daniele ◽  
H. T. Tucker ◽  
J. H. Dauber
Keyword(s):  
Quantitative Analysis ◽  
Alveolar Macrophages ◽  
Bulk Sample ◽  
Silica Particles ◽  
Empirical Method ◽  
Phagocytic Cells ◽  
Calibration Standards ◽  
X Ray ◽  
Accurate Quantitative Analysis ◽  
Scanning Electron

An important example of intracellular particles is encountered in silicosis where alveolar macrophages ingest inspired silica particles. The quantitation of the silica uptake by these cells may be a potentially useful method for monitoring silica exposure. Accurate quantitative analysis of ingested silica by phagocytic cells is difficult because the particles are frequently small, irregularly shaped and cannot be visualized within the cells. Semiquantitative methods which make use of particles of known size, shape and composition as calibration standards may be the most direct and simplest approach to undertake. The present paper describes an empirical method in which glass microspheres were used as a model to show how the ratio of the silicon Kα peak X-ray intensity from the microspheres to that of a bulk sample of the same composition correlated to the mass of the microsphere contained within the cell. Irregular shaped silica particles were also analyzed and a calibration curve was generated from these data.

Lateral resolution of the electron microbeam analysis

1978 ◽  
Vol 36 (1) ◽  
pp. 542-543
Author(s):  
H.J. Dudek
Keyword(s):  
Quantitative Analysis ◽  
Depth Resolution ◽  
Lateral Resolution ◽  
Cylindrical Particle ◽  
Correction Procedure ◽  
X Ray ◽  
Element Concentrations ◽  
Microbeam Analysis ◽  
The Matrix

The chemical inhomogenities in modern materials such as fibers, phases and inclusions, often have diameters in the region of one micrometer. Using electron microbeam analysis for the determination of the element concentrations one has to know the smallest possible diameter of such regions for a given accuracy of the quantitative analysis.In th is paper the correction procedure for the quantitative electron microbeam analysis is extended to a spacial problem to determine the smallest possible measurements of a cylindrical particle P of high D (depth resolution) and diameter L (lateral resolution) embeded in a matrix M and which has to be analysed quantitative with the accuracy q. The mathematical accounts lead to the following form of the characteristic x-ray intens ity of the element i of a particle P embeded in the matrix M in relation to the intensity of a standard S

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