Correlation Analysis between Quality Indexes of Wheat and Physicochemical Properties of Wheat meal

2014 ◽  
Keyword(s):  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Quality Indexes

scholarly journals Correlating Capsaicinoid Levels and Physicochemical Proper-ties of Kimchi and Its Perceived Spiciness

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 86
Author(s):  
So-Ra Yoon ◽  
Yun-Mi Dang ◽  
Su-Yeon Kim ◽  
Su-Yeon You ◽  
Mina K. Kim ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Correlation Coefficient ◽  
Partial Correlation ◽  
Sugar Content ◽  
Amino Acid Content ◽  
Titratable Acidity ◽  
Free Sugar ◽  
Partial Correlation Analysis ◽  
The Relationship

Capsaicinoid content, among other factors, affects the perception of spiciness of commercial kimchi. Here, we investigated whether the physicochemical properties of kimchi affect the spicy taste of capsaicinoids perceived by the tasting. High-performance liquid chromatography (HPLC) was used to evaluate the capsaicinoid content (mg/kg) of thirteen types of commercial kimchi. The physicochemical properties such as pH, titratable acidity, salinity, free sugar content, and free amino acid content were evaluated, and the spicy strength grade was determined by selected panel to analyze the correlation between these properties. Panels were trained for 48 h prior to actual evaluation by panel leaders trained for over 1000 h according to the SpectrumTM method. Partial correlation analysis was performed to examine other candidate parameters that interfere with the sensory evaluation of spiciness and capsaicinoid content. To express the specific variance after eliminating the effects of other variables, partial correlations were used to estimate the relationships between two variables. We observed a strong correlation between spiciness intensity ratings and capsaicinoid content, with a Pearson’s correlation coefficient of 0.78 at p ≤ 0.001. However, other specific variables may have influenced the relationship between spiciness intensity and total capsaicinoid content. Partial correlation analysis indicated that the free sugar content most strongly affected the relationship between spiciness intensity and capsaicinoid content, showing the largest first-order partial correlation coefficient (rxy/z: 0.091, p ≤ 0.01).

Study of Dielectric and Physicochemical Parameters Dependencies in Engine Oils during Exploitation

2016 ◽  
Vol 838 ◽  
pp. 71-77
Author(s):  
Nikolay Sugatov ◽  
Anvar Ashatovich Khaziev
Keyword(s):  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Physicochemical Parameters ◽  
Dielectric Parameters ◽  
Engine Oils ◽  
Motor Oils

This paper gives a study of working oil with the dielectric parameters determining device. The correlation analysis of the dielectric and the physicochemical properties of motor oils was carried out.

scholarly journals Waxy and Soluble Starch SynthaseII-3 Alleles Regulating Rice Resistant Starch Contents from Different Processing Status

2020 ◽  
Author(s):  
hui you ◽  
Liang Xu ◽  
Ouling Zhang ◽  
Xunchao Xiang
Keyword(s):  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Dietary Fiber ◽  
Inbred Line ◽  
Recombinant Inbred ◽  
Resistant Starch ◽  
Molecular Breeding ◽  
Starch Synthesis ◽  
Soluble Starch ◽  
Cooked Rice

Abstract BackgroundResistant Starch (RS) is a healthy dietary fiber that has functions of regulating diabetes, hypertension and obesity. Previous studies mainly focused on investigating RS in raw rice or cooked rice separately, which may receive different results. ResultsIn this study, ninety-nine lines from a recombinant inbred line (RIL) were selected to investigate the effects of starch synthesis-related genes on the RS content in different process status. RS content in rice will change by different processing ways. Waxy (Wx) played an important role in controlling RS content and Wxa could elevate RS content, and soluble starch synthaseII-3 (SSII-3) had an impact on RS2. Additionally, interaction of Wx and SSII-3 was responsible for variations of RS content in three sample types and RS2. Wx could affect RS in cooked rice and retrograded rice under the same SSII-3 allele. Moreover, the correlation analysis results indicated that RS was closely relative with many indexes of physicochemical properties. ConclusionsWx and SSII-3 could regulate RS content of rice, but SSII-3 especially affected RS2. The findings herein should provide useful information for molecular breeding of rice RS.

scholarly journals The resistance of hazel (Corylus avellana) to hazelnut weevil (Curculio nucum L.- Coleoptera, Curculionidae). Part II. The physicochemical characteristics of the pericarp and dynamics of nut development and cultivar resistance to the pest

2013 ◽  
Vol 42 (1-2) ◽  
pp. 153-164 ◽  
Author(s):  
Zdzisław Piskornik ◽  
Aleksander Mazur ◽  
Jerzy Korfel ◽  
Krystyna Koralikowska ◽  
Barbara Maziarz ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Physicochemical Characteristics ◽  
Corylus Avellana ◽  
Oviposition Site ◽  
Cultivar Resistance ◽  
Feeding Experiments

Significant differences were found among the 22 studied hazel cultivars (<i>Corylus avellana</i> L.) in their resistance to hazelnut weevil (<i>Curculio nucum</i> L.) which is the main pest of this crop in Europe. The study investigated the relationships between the resistance of the cultivars to the pest and the physicochemical properties of the pericarp, i.e. the lignification dynamics, changes in thickness and hardness during nut development and the rate of nutlet development. Correlation analysis showed that there was no dependence between the physicochemical properties of the pericarp and the resistance of the hazel cultivars to the hazelnut weevil. Nut development dynamics were also found to be unrelated to resistance to the pest. Laboratory feeding experiments showed that during the initial feeding phase and at the time the insect searches for an oviposition site, it seems to prefer cultivars with the largest nutlets. However, in the period of intensive oviposition, traits other than nutlet size seem to be decisive for the beetles choice of cultivar.

scholarly journals Changes of physicochemical properties and correlation analysis of common buckwheat starch during germination

Fagopyrum ◽  
1970 ◽  
Vol 36 (2) ◽  
pp. 43-50 ◽  
Author(s):  
Licheng Gao ◽  
Meijuan Xia ◽  
Zhonghao Li ◽  
Pengke Wang ◽  
Meng Wang ◽  
...  
Keyword(s):  
Particle Size ◽  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Amylose Content ◽  
Pasting Properties ◽  
Fat Content ◽  
Starch Granules ◽  
Common Buckwheat ◽  
Particle Structure ◽  
Starch Composition

In order to clarify the physicochemical properties of starch during germination of common buckwheat, Xinong9976 was selected as the experimental material to study the main nutrients, particle structure, particle size distribution, transparency, aging value, pasting properties and the correlation between pasting properties and starch composition and main nutrients. The results showed that main nutrients were significantly different. The diameter of starch granules ranged from 2.36 to 8.89.m, and the shapes of starch granules were irregular with obvious holes and cracks on the surface. There were significant differences in starch transparency, aging value and pasting properties at different germination stages. Peak viscosity, through viscosity and final viscosity of germinated common buckwheat was significantly positive correlated with amylopectin content (P < 0.05) and breakdown, final viscosity and setback were significantly negatively correlated with amylose content (P < 0.05). The correlation analysis of starch pasting properties and main nutrients showed that breakdown, setback and crude fat content were significantly negatively correlated (P < 0.01), peak viscosity, through viscosity and final viscosity were significantly negatively correlated with crude fat content (P < 0.05), while the starch pasting properties had no significant correlation with other nutrients.Received: April 14, 2019; accepted: June 8, 2019Key words: common buckwheat, germination, physicochemical properties, starch

A Generalized Iterative Map for Analysis of Protein Sequences

2020 ◽  
Vol 23 ◽  
Author(s):  
Jiahe Huang ◽  
Qi Dai ◽  
Yuhua Yao ◽  
Ping-An He
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Graphical Representation ◽  
Protein Sequences ◽  
Biological Sequences ◽  
Alignment Method ◽  
Alignment Free ◽  
Comparison Results

Aim and Objective: The similarities comparison of biological sequences is the important task in bioinformatics. The methods of the similarities comparison for biological sequences are divided into two classes: sequence alignment method and alignment-free method. The graphical representation of biological sequences is a kind of alignment-free methods, which constitutes a tool for analyzing and visualizing the biological sequences. In this article, a generalized iterative map of protein sequences was suggested to analyze the similarities of biological sequences. Materials and Methods: Based on the normalized physicochemical indexes of 20 amino acids, each amino acid can be mapped into a point in 5D space. A generalized iterative function system was introduced to outline a generalized iterative map of protein sequences, which can not only reflect various physicochemical properties of amino acids but also incorporate with different compression ratios of component of generalized iterative map. Several properties were proved to illustrate the advantage of generalized iterative map. The mathematical description of generalized iterative map was suggested to compare the similarities and dissimilarities of protein sequences. Based on this method, similarities/dissimilarities were compared among ND5 proteins sequences, as well as ND6 protein sequences of ten different species. Results: By correlation analysis, the ClustalW results were compared with our similarity/dissimilarity results and other graphical representation results to show the utility of our approach. The comparison results show that our approach has better correlations with ClustalW for all species than other approaches and illustrate the effectiveness of our approach. Conclusion: Two examples show that our method not only has good performances and effects in the similarity/dissimilarity analysis of protein sequences but also does not require complex computation.

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