Some Physical Properties of Telfaria Occidentalis Seeds as Influenced by Moisture Content
Neke fizičke osobine semena ožljebljene tikve – tikve Telfarije (telfaria occidentalis) izloženog uticaju vlage
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Author
Adejumo, B.A.
Oladokun, D.B.
Keywords
Telfairia Occidentalismoisture content
physical properties
porosity
Telfairia Occidentalis
sadržaj vlage
fizičke osobine
poroznost
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Show full item recordAbstract
The effect of moisture content on some physical properties of Telfaria
Occidentalis seed was investigated at 31%, 34%, 36% and 41% moisture content (wet
basis). The mean values of the physical properties of the seeds were determined as
length 36.09 – 38.32 mm,width 30.22 – 32.82 mm, thickness 14.22 – 16.42 mm,
geometric mean diameter 24.94 – 27.44 mm, sphericity 0.69 – 0.73 mm, thousand seed
mass 8.50 – 10.81 kg, bulk density 0.77 – 0.80 g·cm-3, true density 0.86 – 1.17 g·cm-3,
porosity 17.09 - 26.74 %, surface area 1953.46 – 2364.00 cm2. The coefficient of friction
as measured on glass was 0.37 – 0.58%, sheet metal 0.49 – 0.58%, plywood 0.53 –
0.65%. All the physical properties of the seeds evaluated increased with increase in
moisture content but however the porosity, decreased with the increase in moisture
content. This information will provide engineers and designer the relevant data for
efficient equipment design and process handling of Telfaria Occidentalis seed thereby
increasing its utilization in Nigeria. Uticaj sadržaja vlage na neke fizičke osobine semena Telfaria Occidentalis
bio je ispitivan pri vlažnostima od 31%, 34%, 36% i 41%. Srednje vrednosti fizičkih
osobina semena koje su određene su: dužina 36.09 – 38.32 mm, širina 30.22 – 32.82
mm, debljina 14.22 – 16.42 mm, geometrijski srednji prečnik 24.94 – 27.44 mm,
sveričnost 0.69 – 0.73 mm, masa hiljadu zrna 8.50 – 10.81 kg, gustina gomile 0.77 –
0.80 g·cm-3, stvarna gustina 0.86 – 1.17 g·cm-3, poroznost 17.09 - 26.74 %, spoljna
površina 1953.46 – 2364.00 cm2. Koeficijent trenja meren na staklu iznosio je 0.37 –
0.58 %, na metalnoj ploči 0.49 – 0.58 % i šperploči 0.53 – 0.65%. Sve vrednosti fizičkih
osobina ocenjivanog semena povećale su se sa povećanjem sadržaja vlage, izuzev
poroznosti koja je opadala sa porastom sadržaja vlage. Ove informacije će inženjerima i
konstruktorima obezbediti relevantne podatke za efikasno konstruisanje uređaja i opreme
za tretman semena Telfaria Occidentalis čime će se povećati njegova upotreba u
Nigeriji.