RAPID SMALL-SCALE DETERMINATION OF MALT EXTRACT IN BARLEY BREEDING |
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| Authors: | R. J. Henry B. T. McLean |
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| Affiliation: | Queensland Wheat Research Institute, P.O. Box 5282, Toowoomba, 4350, Australia |
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| Abstract: | A simple procedure for the determination of malt extract requiring only 0·5 g of malt is described. A constant volume of hot water is added and the mash is centrifuged rather than filtered. The extract is then estimated directly from a refractometer reading. The relationship between refractometer reading and wort solids was linear and was not found to vary with barley variety or grain nitrogen. The effect of varying the grist/mash ratio was investigated. The method had similar precision to other methods, but was more rapid, making it useful in barley breeding. |
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| Keywords: | malt extract barley breeding refractive index mashing |
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