Some physical properties of fenugreek (Trigonella foenum-graceum L.) seeds

Altuntaş, Ebubekír; Özgöz, Engin; Taşer, Ömer

doi:10.1016/j.jfoodeng.2004.10.015

Cited by 216 publications

(172 citation statements)

References 20 publications

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“…In both types of kernels, kernels with external friction angles on friction plates with surface roughness Ra = 1.39 μm and Ra = 3.25 μm formed a homogeneous group. The average values of the angle of external friction ranged from 16.29°to 23.99°(friction coefficients of 0.29 to 0.45), which is consistent with the results reported by Molenda et al, [5] Kram, [30] Karimi et al, [31] Boac et al, [28] Kaliniewicz, [32] Markowski et al [21] and Kaliniewicz et al [13] Similar values of external friction coefficients were determined in seeds of other plant species, including chick peas, [33] lentils, [34] fenugreek, [35] coriander, [36] cowpeas, [37,38] barley, [39] castor beans [40] and psyllium. [41] Correlations between the physical properties of kernels…”

Section: Angle Of External Frictionsupporting

confidence: 88%

A relationship between friction plate roughness and the external friction angle of wheat kernels

Kaliniewicz

Żuk

2017

International Journal of Food Properties

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The frictional properties of seeds have been extensively studied, but most researchers have identified only the type of tested friction materials (e.g. concrete, steel, wood) without describing their manufacturing characteristics. The aim of this study was to determine the correlations between the external friction angle of wheat kernels vs. the roughness of the friction plate and the basic physical properties of kernels. The experiment was performed on the kernels of winter wheat var. Jensen obtained directly from spikes and threshed kernels. The external friction angle of every kernel was measured on six friction plates characterized by different surface geometry. Measurements were performed in five replications with a photosensor device which registered the external friction angle of kernels. The basic dimensions and the mass of every kernel were measured, and the results were used to calculate four shape factors for the analyzed kernels. The correlations between the evaluated attributes were determined by one-way analysis of variance (ANOVA) and linear correlation analysis. The roughness of the friction plate significantly influenced the external friction angle of wheat kernels. The average values of the angle of external friction ranged from around 16°to around 24°. The lowest value of the angle of external friction was noted for surface roughness of Ra = 0.93 μm, and the highest value -for surface roughness of Ra = 5.86 μm. Higher values of the angle of external friction were observed in kernels obtained directly from spikes than in threshed kernels. ARTICLE HISTORY

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Section: Angle Of External Frictionsupporting

confidence: 88%

A relationship between friction plate roughness and the external friction angle of wheat kernels

Kaliniewicz

Żuk

2017

International Journal of Food Properties

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“…This could be because the glass was smoother than the other surfaces. The coefficient of dynamic friction, in both cultivars, was similar to kidney bean (altuntas & demirtola 2007) but lower than in faba bean seed (Ozcan et al 2005), and fenugreek (Trigonella foenumgraceum L.) (Altuntas et al 2005) which could be explained by the smooth seed surface of the cultivars evaluated.…”

Section: Frictional Aerodynamic and Colour Propertiesmentioning

confidence: 67%

Physico‐mechanical seed properties of the common Turkish bean (Phaseolus vulgaris) cultivars ‘Hinis’ and ‘Ispir’

Öztürk¹,

Kara

Yildiz

et al. 2009

New Zealand Journal of Crop and Horticultural Science

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41Physico-mechanical seed properties of the common Turkish bean (Phaseolus vulgaris) for 'Hinis' and 'Ispir', respectively. The average 1000 seed weight, bulk density, and porosity were determined as: 531.3 and 598.9 g, 835.8 and 872.7 kg m -3 , and 34.0% and 33.1% for 'Hinis' and 'Ispir', respectively. The average angle of repose and terminal velocity were 24.52° and 19.46°, and 11.42 and 11.80 m s -1 in 'Hinis' and 'Ispir' respectively. The highest coefficient of dynamic friction was obtained with an aluminium surface in both cultivars as 0.227 for 'Hinis' and 0.199 for 'Ispir'. This was followed by fibreglass, steel, plywood, and glass surfaces. Both cultivars had white testae. The average value of rupture force, deformation at rupture point, energy absorbed, hardness, and toughness along the

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“…The fruit shape is determined in terms of its sphericity and aspect ratio. Moreover, sphericity is an expression of the shape of a solid related to that of a sphere of the same volume while the aspect ratio relates the width to the length of the fruit, being the indicative of its tendency toward its oblong shape [Mohsenin 1980, Altuntaş et al 2005.…”

Section: Nut and Kernel Physical And Sensorial Propertiesmentioning

confidence: 99%

Determination of Size and Shape Features of Hazelnuts Using Multivariate Analysis

Milošević¹,

Milošević²

2017

Acta Sci. Pol. Hortorum Cultus

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Nut and kernel size, shape and some sensorial traits in ten hazelnut (Corylus avellana L.) cultivars were evaluated using an objective procedure based on multivariate analysis in order to obtain an important value of these cultivars for growers, processing and consumers. Cultivars were compared with nuts and kernels of C. avellana L. and C. colurna L. Significant differences in all physical properties were found among the cultivars, and also among cultivars and hazelnut species. A high correlation was found among some hazelnut traits. Cluster and principal component analysis supported results obtained by analysis of variance, and segregated genotypes in similar groups according to their characteristics evaluated. Procedure described may be useful in analyzing impacts of genotype per se on nut and kernel physical and sensorial properties, and also determine the factors for growers, breeders, especially for harvesting, sorting and other postharvest operations in order to establish optimal machine and equipment design.

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Some physical properties of fenugreek (Trigonella foenum-graceum L.) seeds

Cited by 216 publications

References 20 publications

A relationship between friction plate roughness and the external friction angle of wheat kernels

A relationship between friction plate roughness and the external friction angle of wheat kernels

Physico‐mechanical seed properties of the common Turkish bean (Phaseolus vulgaris) cultivars ‘Hinis’ and ‘Ispir’

Determination of Size and Shape Features of Hazelnuts Using Multivariate Analysis

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