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Particle Size Characteristics of Ground Soy and Red Gram.

Vishwanathan, K. H. and Subramanian, R. (2014) Particle Size Characteristics of Ground Soy and Red Gram. International Journal of Food Properties, 17 (7). pp. 1469-1481.

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Grinding characteristics of soy and red gram were compared employing single- and twostage grinding in a mixer grinder. The initial size as well as hardness of soy (∼216 N) and red gram (∼220 N) were nearly equal. However, final particle size of red gram (61 μm) was much lower than soy (255 μm), indicating that red gram was relatively easier to grind. Analysis of microstructure indicated that typical internal structure and intercellular forces could play a significant role in determining the grinding characteristics of individual grains. With the same amount of energy input (200 kJ/kg), size reduction ratio in soy increased from 12 to 16 during two-stage grinding. Energy and particle analyses revealed that a two-stage segregated grinding is suitable for soy while a single-stage grinding is adequate for red gram. Classical dry grinding laws were applicable after initial break up suggesting their suitability for secondary grinding of soy and red gram.

Item Type: Article
Uncontrolled Keywords: Classical grinding laws, Energy, Hardness, Red gram, Soy.
Subjects: 600 Technology > 08 Food technology > 22 Legumes-Pulses
600 Technology > 08 Food technology > 07 Food Engineering
Divisions: Food Engineering
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 28 May 2014 12:09
Last Modified: 28 May 2014 12:09
URI: http://ir.cftri.com/id/eprint/11586

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