Record Details

Physical and biochemical parameters of fresh and dry ginger (Zingiber officinale Roscoe)

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator JAYASHREE, E
VISVANATHAN, R
 
Date 2011-05-02T20:13:32Z
2011-05-02T20:13:32Z
2011
 
Identifier Journal of Spices and Aromatic Crops 20 (1) : 14-21 (2011)
0971-3328
http://hdl.handle.net/123456789/673
 
Description The physical and biochemical properties of fresh and dry ginger (Zingiber officinale) (cv:Himachal) obtained from Nemmara (Palakkad District, Kerala), useful for the design of processing machineries, were determined. The average moisture content of fresh and dry rhizomes were 81.70% and 8.85%, respectively. The average length, width and thickness of fresh rhizome were 14.99 cm, 8.17 cm and 4.49 cm, respectively and the corresponding values for dry rhizome were 9.74 cm, 5.56 cm and 4.49 cm. The mean values of cylindricity for primary, secondary and tertiary finger rhizomes were 0.46, 0.51 and 0.56, respectively and
the corresponding values for dry finger rhizomes were 0.48, 0.53 and 0.58. The average mass, volume and surface area of fresh rhizomes were 103.45 g, 85.0 cm3 and 194.52 cm2, respectively and the corresponding values for dry rhizomes were 31.62 g, 22.10 cm3 and 65.84 cm2. The
bulk density, true density and porosity for fresh rhizomes were determined as 471.49 kg m-3,1107.01 kg m-3 and 66.80%, respectively, and for dry rhizomes the values were 460.09 kg m-3,1013.22 kg m-3 and 54.09%. The angle of repose increased from 34.6° to 39.5° after drying.Mild steel surface offered more frictional resistance than other surfaces and the coefficient of friction for fresh and dry ginger against mild steel was 0.74 and 0.54, respectively. The average
meat : peel ratio of the whole fresh rhizome was 10.7:1. The average recovery of dry ginger was 23.01%. The dry ginger obtained had 1.6% essential oil, 3.5% oleoresin and 2.7% crude fibre.
 
Format 124172 bytes
application/pdf
 
Language en
 
Publisher Indian Society for Spices
 
Subject Ginger
physical properties
quality
Zingiber officinale
 
Title Physical and biochemical parameters of fresh and dry ginger (Zingiber officinale Roscoe)
 
Type Article