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Influence of Cryogenic and Ambient Grinding on Grinding Characteristics of Fenugreek Powder: A Comparative Study
Author(s) -
Barnwal P.,
Singh K.K.,
Mohite A.,
Sharma A.,
Saxena S.N.
Publication year - 2015
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/jfpp.12342
Subject(s) - grinding , volume (thermodynamics) , particle size , materials science , particle (ecology) , specific energy , composite material , chemistry , physics , oceanography , quantum mechanics , geology
Abstract Grinding characteristics of fenugreek (cv. AM ‐1 ) were carried out at cryogenic and ambient conditions. It was observed that it affected average particle size, volume surface mean diameter, mass mean diameter, volume mean diameter, specific surface of mixture, number of particles per gram, energy constants – R ittinger and K ick's – and specific energy consumption. Values of average particle size, volume surface mean diameter, mass mean diameter, volume mean diameter, specific surface of mixture, number of particles per gram, R ittinger's constant, K ick's constant and specific energy consumption varied from 0.31 to 0.80, 0.31 to 0.57, 0.27 to 0.77, 0.25 to 0.41 mm; 16,413 to 34,254 mm 2 /g; 5,863 to 111,620 particles per gram, 4.97 to 35.87 k W h/t, 4.76 to 53.59 kWh/t, and 8.37 to 50.17 k W h/t, respectively, in the moisture content range of 5–15% wet basis at ambient and cryogenic grinding. Comparative study had shown that ambient grinding needs more power and specific energy than cryogenic grinding. Practical Applications The grinding characteristics of fenugreek powder will be useful to control the processing parameters and it will lead to improved quality and output of the fenugreek powder. The present study on grinding characteristics of fenugreek powder provides reliable information for design of equipments for handling, processing, packaging and transportation of ground powder, which will in turn be economically helpful for powder processing industries. The better color parameters of the fenugreek powder also cause enhancement of economy that may be seen with the help of present work.