Physical Properties of Canadian Grown Flaxseed in Relation to Its Processing

Figures & data

Table 1 Size distribution of flaxseeds at the moisture content of 6.85% (d.b.)

		Size category
Particulars	Ungraded	Large	Medium	Small
Length of seed, mm	4.29–4.90	>4.78	4.49–4.78	<4.49
Percentage of sample (by number)	100	20	62	18
Average dimensions
Length (L), mm	4.64 ± 0.14	4.83 ± 0.03	4.63 ± 0.08	4.43 ± 0.05
Width (W), mm	2.37 ± 0.10	2.52 ± 0.04	2.36 ± 0.05	2.22 ± 0.05
Thickness (T), mm	1.0 ± 0.09	1.12 ± 0.05	0.99 ± 0.04	0.87 ± 0.04
Arithmetic mean diameter (mm)	2.67 ± 0.08	2.82 ± 0.04	2.66 ± 0.06	2.51 ± 0.04
Geometric mean diameter (mm)	2.21 ± 0.08	2.38 ± 0.05	2.21 ± 0.06	2.04 ± 0.05

Figure 1 Frequency distribution curve of flaxseed dimension at 6.85% moisture content (d.b.).

Table 2 Correlation of seed dimension, with 6.85% (d.b.) average moisture content

Particulars	Ratio	Degree of freedom	Correlation coefficient (r)	p-Value
L/W	1.96	99	0.980	0.0000***
L/T	4.68	99	0.972	0.0000***
L/Dg	2.09	99	0.986	0.0000***
W/T	2.39	99	0.982	0.0000***
W/Dg	1.07	99	0.993	0.0000***
T/Dg	0.45	99	0.996	0.0000***
***Significant at the level 0.1%.

Table 3 Physical properties of Canadian flaxseed

Physical properties	N	Unit of measurement	Mean	Minimum value	Maximum value	Standard deviation
Moisture content (d.b.)	5	%	6.85	6.72	7.02	0.14
Oil content	5	%	39.05	38.10	39.75	0.63
Sphericity	100	decimal	0.48	0.45	0.51	0.01
Aspect ratio	100	%	51.04	49.42	52.88	0.68
1000 seed mass	20	g	5.77	5.58	5.89	0.09
Surface area	100	mm^2	15.49	11.68	19.75	1.69
Bulk density	10	kg/m^3	652.16	648.12	659.84	14.23
True density	10	kg/m^3	784.36	758.0	798.25	15.70
Porosity	10	%	16.83	14.32	18.81	1.73
Angle of repose	10	degree	24.4	23.5	25	0.65
Terminal velocity	10	m/s	2.90	2.78	2.96	0.10
Co-efficient of friction
stainless steel sheet	10		0.26	0.25	0.28	0.01
galvanized iron sheet	10		0.32	0.30	0.34	0.02
aluminum sheet	10		0.27	0.27	0.28	0.01
plywood	10		0.26	0.25	0.27	0.01
rubber sheet	10		0.33	0.32	0.34	0.02
plastic sheet	10		0.23	0.22	0.24	0.01
N is the number of samples.