Quality of western Canadian lentils 2009

• Previous page
• Table of contents
• Next page

6. Quality of western Canadian green lentils

Small green lentils (CDC Milestone, CDC Viceroy and Eston), medium green lentils (CDC Impress, CDC Meteor and CDC Richlea) and large green lentils (CDC Glamis, CDC Grandora, CDC Greenland, CDC Improve, CDC Plato, CDC Sedley, CDC Sovereign and Laird) had average protein contents of 27.1%, 25.5% and 26.3%, respectively, which were slightly lower than their respective type of lentil in 2008. The mean starch contents for all sizes in 2009 (44.9%, 46.9% and 46.3%, respectively) were higher than those for 2008 (43.2%, 43.8% and 44.6%, respectively).

Small green lentils in 2009 had a mean 100-seed weight of 3.1 g, which was higher than that in 2008 (2.8 g), but their mean water absorption for 2009 was lower than for 2008 (0.79 and 0.88 g H₂O/g seeds, respectively). Medium and large green lentils in 2009 had mean 100-seed weights of 5.1 g and 6.6 g, respectively, which were similar to the 2008 survey (4.8 g and 6.7 g, respectively). Mean water absorption values of 0.99 g H₂O/g seeds for medium lentils and 0.98 g H₂O/g seeds for large lentils were similar to those for 2008 (0.93 g H₂O/g seeds and 0.97 g H₂O/g seeds, respectively).

Quality data for 2009 western Canadian green lentils by size¹

Quality parameter	2009			2008
	SL2	ML3	LL4	SL2	ML3	LL4
1 Lentils, No. 1 Canada and Lentils, No. 2 Canada combined.
2 SL=small lentils including Eston, Milestone and Viceroy.
3 ML=medium lentils including CDC Meteor, Richlea and Vantage.
4 LL=large lentils including CDC Glamis, CDC Grandora, CDC Greenland, CDC Improve, CDC Plato, CDC Sedley, CDC Sovereign and Laird.
Protein, % dry basis
Number of samples	9	5	21	11	4	23
Mean	27.1	25.5	26.3	28.7	26.2	26.8
Standard deviation	0.7	1.5	0.6	0.8	1.3	0.6
Minimum	26.3	23.7	25.0	27.5	24.7	26.0
Maximum	28.5	27.2	27.9	30.1	27.5	28.0
Starch, % dry basis
Number of samples	9	5	21	11	4	23
Mean	44.9	46.9	46.3	43.2	43.8	44.6
Standard deviation	1.4	1.7	0.6	0.9	0.7	0.8
Minimum	41.5	44.5	44.7	41.9	42.8	42.4
Maximum	46.3	49.0	47.3	44.6	44.4	45.7
100-seed weight, g/100 seeds
Number of samples	9	5	21	11	4	23
Mean	3.1	5.1	6.6	2.8	4.8	6.7
Standard deviation	0.3	0.5	0.4	0.2	0.7	0.5
Minimum	2.6	4.6	5.9	2.4	4.2	5.5
Maximum	3.5	5.6	7.3	3.2	5.7	7.9
Water absorption, g H2O/g seeds
Number of samples	9	5	21	11	4	23
Mean	0.79	0.99	0.98	0.88	0.93	0.97
Standard deviation	0.20	0.06	0.05	0.11	0.06	0.04
Minimum	0.34	0.93	0.87	0.68	0.86	0.89
Maximum	0.96	1.06	1.06	1.01	0.99	1.05

The seed size distribution for green lentils was determined by the Image Analysis technique developed at the Canadian Grain Commission. The reported results may differ from those obtained by conventional sieving techniques. For small green lentils in 2009, 75% of the seeds fell within 4.0 to 5.0 mm, which was similar to 2008. Medium green lentils in 2009 had the most in the 5.0-6.0 mm range, while in 2008, the largest group fell in the 5.5-6.5 mm range. In 2008, approximately 70% of large green lentils fell within 6.0-7.0 mm, while in 2009, only approximately 63% fell within this range. This indicates that the medium and large lentils from 2009 were smaller in diameter than in 2008.

Seed size distribution for 2009 western Canadian green lentils¹

Seed size distribution	2009			2008
	SL2	ML3	LL4	SL2	ML3	LL4
	Number of samples			Number of samples
	32	12	187	34	8	189
1 Seed size including all grades determined by the image analysis technique.
2 SL=small lentils including the varieties Eston, Milestone and Viceroy.
3 ML=medium lentils including CDC Meteor, Richlea and Vantage.
4 LL=large lentils including CDC Glamis, CDC Grandora, CDC Greenland, CDC Improve, CDC Plato, CDC Sedley, CDC Sovereign and Laird.
< 3.5 mm, %	4.1	0.2	0.1	3.3	0.2	0.1
3.5-4.0 mm, %	19.0	0.6	0.2	18.2	0.3	0.1
4.0-4.5 mm, %	46.5	2.9	0.6	45.5	0.6	0.3
4.5-5.0 mm, %	27.9	16.5	2.9	29.8	2.7	1.5
5.0-5.5 mm, %	2.4	37.9	8.8	3.2	15.7	5.4
5.5-6.0 mm, %	-	35.0	22.3	0.1	29.9	18.3
6.0-6.5 mm, %	-	6.2	40.7	-	34.4	43.2
6.5-7.0 mm, %	-	0.7	22.4	-	15.4	27.6
7.0-7.5 mm, %	-	-	2.1	-	1.0	3.5
> 7.5 mm, %	-	-	-	-	-	0.1

• Previous page
• Table of contents
• Next page