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Aug 17 2011 quality scoop update
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Aug 17 2011 quality scoop update

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  • 1. 2011 QUALITY SCOOP UPDATE
    Wednesday, August 17, 2011
  • 2. Southwest Region
    SOFT RED WINTER WHEAT QUALITY
  • 3. 2011 ONTARIO QUALITY SCOOPCanada Eastern Soft Red Winter Wheat
  • 4. 2011 ONTARIO QUALITY SCOOPCanada Eastern Soft Red Winter Wheat
  • 5. 2011 ONTARIO QUALITY SCOOPCanada Eastern Soft Red Winter Wheat
  • 6. Southwest Region
    SOFT WHITE WINTER WHEAT QUALITY
  • 7. 2011 ONTARIO QUALITY SCOOPCanada Eastern Soft White Winter Wheat
    *There were not enough samples to make regional composites in these years. The composites were comprised of samples from all over Ontario.
  • 8. 2011 ONTARIO QUALITY SCOOPCanada Eastern Soft White Winter Wheat
    *There were not enough samples to make regional composites in these years. The composites were comprised of samples from all over Ontario.
  • 9. 2011 ONTARIO QUALITY SCOOPCanada Eastern Soft White Winter Wheat
    *There were not enough samples to make regional composites in these years. The composites were comprised of samples from all over Ontario.
  • 10. Southwest Region
    HARD RED WINTER WHEAT QUALITY
  • 11. 2011 ONTARIO QUALITY SCOOPCanada Eastern Hard Red Winter Wheat
    *There were not enough samples to make regional composites in these years. The composites were comprised of samples from all over Ontario.
  • 12. 2011 ONTARIO QUALITY SCOOP Canada Eastern Hard Red Winter Wheat
    *There were not enough samples to make regional composites in these years. The composites were comprised of samples from all over Ontario.
  • 13. 2011 ONTARIO QUALITY SCOOPCanada Eastern Hard Red Winter Wheat
    *There were not enough samples to make regional composites in these years. The composites were comprised of samples from all over Ontario.
  • 14. Quality Testing - Solvent Retention CapacityElaine SopiwnykHead, Analytical Services
  • 15. Solvent Retention Capacity (SRC)
    • Principle of the test:
    • 16. Weight of solvent held by a flour after centrifugation and expressed as a percentage of flour weight (14% moisture basis)
    • 17. Typically performed on soft wheat flour
    • 18. Predicts cookie baking performance
  • Flour Components & Water Absorption
    These components not only affect water absorption but have structural implications
  • 19. Solvent Retention Capacity (SRC)
    • Solvents:
    • 20. Lactic acid, 5%: glutenin characteristics
    • 21. Sodium carbonate, 5%: damaged starch
    • 22. Sucrose, 50%: pentosans
    • 23. Water: all quality parameters
    • 24. SRC results establish a flour’s quality profile
  • SRC - Calculation
    )
    )
    • % SRC = gel weight 86
    flour weight 100 – flour mc
    • Calculation was revised in 2009*
    )
    )
    x
    x 100
    -1
    *Hayes, Bettge & Slade. 2009. Cereal Foods World. 54:174-175.
  • 25. SRC Results – Optimum Performance
    Conformance of bakery production is improved when results are stable.
    AACC 56-11.02
  • 26. SRC – Other Applications
    • Whole meal testing
    • 27. Advantage: milling not required
    • 28. Disadvantage: slight loss of accuracy but still useful for screening
    • 29. Small scale testing
    • 30. Advantage: screening of early generations
    • 31. Disadvantage: slight loss of accuracy but still useful for screening
    Bettge, Morris, DeMacon & Kidwell. 2002. Cereal Chem. 79:670-674.
  • 32. SRC –
    Relationships with Rheological Tests
    **P < 0.05
    NS – not significant
    Gaines, Fregeau-Reid, vander Kant & Morris. 2006. Cereal Chem. 83:284-286.
  • 33. SRC – Summary
    • Relatively quick test that can be used for monitoring samples for cookie quality.
    • 34. Can be conducted using ground wheat.
    • 35. Not all solvents need to be evaluated.
  • For more information please contact:
    Michael Reimer, MSc
    Technical Specialist, Ontario Wheat
    Canadian International Grains Institute
    1000-303 Main St.,
    Winnipeg, MB, R3C 3G7
    Phone: (204) 983-1055
    Fax: (204) 983-2642
    E-mail: mreimer@cigi.ca
    Website: www.cigi.ca
    Blog: http://ontarioqualityscoop.blogspot.com/