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In this study, thirty onion (Allium cepa L.) genotypes grown in sub-tropical region of India were analysed for different physico-chemical attributes. There were significant differences among genotypes, and the onion genotypes showed a tendency to be classified according to different colours. The cultivars of the same colour exhibited similar tendencies in terms of accumulating most of the analysed components. About 1.78 fold variation in dry matter (%) and 2 fold variation in fresh weight per bulb were recorded among coloured onions. Red genotype D-888-B possessed maximum contents of TS and NRS, while the yellow coloured genotype POH-5 accumulated highest RS and lowest NRS contents. Maximum values of fructans (3.68 g/100 g DW), AIS (6 g/100 g DW), protein (10.61 g/100 g DW), and FAA (4.24 g/100 g DW) were also found in red coloured genotypes D-715-B, D-97-B, PR-305, and D-PS-121-B, respectively. Proline content in different genotypes was found to vary about 6.9 fold. The correlation studies showed a positive relationship between most of the quality parameters. Our results suggested that red group genotypes were better than yellow and white groups for all the studied parameters except for RS, which makes red genotypes more suitable for processing purposes.

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β-Glucan content and β-glucanase activity of winter and spring barley cultivars grown under different environments were evaluated. There were significant differences in both β-glucan content and β-glucanase activity between analysed barleys. The results showed that, for all cultivars and locations, approximately 75% of β-glucan present in grains was degraded after malting, and that marked differences existed among winter and spring type of cultivars in malt β-glucan content. The correlation analysis of β-glucan content and malt quality parameters showed that malt β-glucan content was significantly positively correlated with viscosity and extract difference, and negatively with malt β-glucanase activity and friability. Regarding malt β-glucanase activity, significantly higher activity was found in spring cultivars in contrast to winter cultivars.

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Present research on prebiotics focuses on either polysaccharides or polyphenols. This study compared the individual and combined impact of polysaccharide, quercetin, and gallic acid (GA) treatment on three human faecal strains. In vitro pure culturing and correlation analysis confirmed that the growth of both beneficial microbe B. longum subsp. longum (0.695, 0.205: R2, slope, respectively) and pathogenic C. perfringens (0.712, 0.085: R2, slope, respectively) increased due to polysaccharide treatment, and only GA treatment would inhibit C. perfringens (0.789, –0.165: R2, slope, respectively) growth. In vivo studies also revealed that genome copies of Bifidobacterium increased and C. perfringens decreased in the faeces, when a blend of the three nutrients rather than single polysaccharide or polyphenols were fed to rats. These data suggested that combined prebiotic treatment improved human faecal strain composition better than single treatment.

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Mineral composition of grain of some new winter wheat genotypes in Croatia was studied. The following genotypes were selected: Lara, Lenta Kruna Fiesta, AG-45 and Perla which were taken from macrotrials during two vegetation periods of 1997/98 and 1998/99 at two locations in Donji Miholjac and Kutjevo. N-concentration was determined by the micro-Kjeldahl method, P spectrophotometrically and concentration of K, Ca, Mg, Zn, Cu, Fe and Mn by the AAS method (atomic absorption spectrophotometry). Interaction between the examined parameters was defined by multiple regression and correlation analysis. The results showed higher concentrations of N, P, K, Mg, Zn, Cu, and Mn, except for Fe, in the grain from Donji Miholjac than from Kutjevo. High concentration variability of macro and microelements in the grain of the examined genotypes depended on location and growing year. Concentration of macro and microelements in the grain did not have significant correlation with the grain yield for the examined genotypes, apart from N and Mg concentration.

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Wang, D.Y., Zhang, X.F., Zhu, Z.W., Chen, N., Min, J., Yao, Q., Yan, J.L. & Liao, X.Y. (2005): Correlation analysis of rice grain quality characteristics. Acta Agron. Sin. , 31 , 1086–1091. Liao XY

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Pollack Periodica
Authors: László Pusztai, Balázs Kocsi, István Budai, and Lajos Nagy

. Correlations between profit and activity time durations As it was mentioned in the previous section more human work results in higher costs. With the use of correlation analysis, relationships are revealed between profit and activities, that is, which

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Acta Alimentaria
Authors: S. Hu, H. Shu, J.L. Yuan, J.Y. Gao, P.Y. Mu, C.Z. Ren, W. Sang, L.C. Guo, and H.B. Chen

(ANOVA) using SPSS Statistics 20 (IBM, USA). The Pearson coefficient was applied for data correlation analysis. 2 Results and discussion 2.1 Expansion ratio and hardness In general, a high expansion ratio and low hardness value improve product quality and

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samples obtained by the electronic tongue A correlation analysis was performed ( Table 1 ) between the sensor responses and the sample pH and lactose content. The sensors CA and ZZ correlate highly with sample pH, while no statistically significant

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penalized matrix decomposition, with applications to sparse principal components and canonical correlation analysis. Biostatistics , 10 , 515–534. Hastie T. A penalized matrix

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correlation analysis was performed for the determination of relationship. 3 Results and discussion When the vegetables studied were evaluated together, peels of both eggplant cultivars obtained from both organic and conventional systems had the most individual

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