Effect of moisture content on physical properties of barnyard millet

The experiments were conducted to study the physical properties of barnyard millet (VL-172) at four moisture levels (8, 10, 12 and 14%, db). The size characteristics, i.e., length, width, thickness, length-width ratio, width-thickness ratio, grain mean diameter and spherecity varied from 2.43-2.57 m...

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Bibliographic Details
Published inPantnagar Journal of Research (India) Vol. 6; no. 1
Main Authors Lohani, U. C, Pandey, J. P
Format Journal Article
LanguageEnglish
Published 01.01.2008
Subjects
CHEMICOPHYSICAL PROPERTIES
CONTENIDO DE HUMEDAD
ECHINOCHLOA FRUMENTACEA
http://www.fao.org/aos/agrovoc#c_1521
http://www.fao.org/aos/agrovoc#c_2454
http://www.fao.org/aos/agrovoc#c_4886
http://www.fao.org/aos/agrovoc#c_6133
MOISTURE CONTENT
POSTHARVEST TECHNOLOGY
PROPIEDADES FISICOQUIMICAS
PROPRIETE PHYSICOCHIMIQUE
TECHNOLOGIE APRES RECOLTE
TECNOLOGIA POSTCOSECHA
TENEUR EN EAU
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Summary:The experiments were conducted to study the physical properties of barnyard millet (VL-172) at four moisture levels (8, 10, 12 and 14%, db). The size characteristics, i.e., length, width, thickness, length-width ratio, width-thickness ratio, grain mean diameter and spherecity varied from 2.43-2.57 mm, 1.94-2.01 mm, 1.26-1.30 mm, 1.26-1.28,1.54-1.56, 1.81-1.89 mm and 0.73-0.74 among different experimental moisture level. The gravimetric properties, i.e. 1000-kernel weight (3.48-3.73 g), 1000-kernel volume (3.00-3.27 ml), bulk density (0.7489-0.7828 g/ml), true density (1.2134-1.2639 g/ml), porosity (0.3249-0.4074), angle of repose (19.19-22.71°), coefficient of friction (0.2339-0.2561) and hardness (3.2-4.3 kgf) were correlated with moisture content through regression analysis. At each moisture level, low values of correlation coefficients between grain dimensions indicates that the grain dimensions were independent of each other and hence, no suitable model for describing the relationship between grain dimensions could be developed. The porosity depended on the grain size and shape. The thousand-kernel weight and volume were highly positively and negatively correlated with grain dimensions respectively. Bulk density was positively correlated whereas true density was negatively correlated with thousand-kernel weight of the grain.
Bibliography:Q02
ISSN:0972-8813