Pollach, G.; Hein, W.; Rösner, G.; Berninger, H.; Kernchen, W.:
Assessment of beet quality using a refractometric method.
Zuckerindustrie 117 (1992) pp. 242-247.
List of papers
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Abstract: We tested on 40 beet samples how far it might be possible to assess beet quality using refractometric and densimetric methods. Regarding the parameter molasses non-sugar on beet, a combination of Aluminium defecation and refractometry proved to be almost equivalent to methods based on non-sugar components. As well as for thick juice purity and molasses non-sugar on beet, formulae are given, assuming low Ca molasses, for molasses sugar and corrected sugar, respectively, on beet. By assuming a relative loss between beet and thick juice, very simple relationships were found. Practical tests in beet laboratories have not yet been carried out.
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| Different variants of writing the most important equation |
| S = Sugar Mo = Molasses B = Beet RDM = Refractometric Dry Matter |
| m = mass w = Mass fraction |
Molasses-sugar
on beet |
= |
f1 |
x |
RDM of
Al-Sulph. filtrate |
+ |
f2 |
x |
Sugar content of the Beet |
Molasses-sugar
on beet |
= |
8.2 |
x |
RDM of
Al-Sulph. filtrate |
− |
1.145 |
x |
Sugar content of the Beet |
| |
| mS,Mo / mB |
= |
8.2 |
x |
wRDM,Al-filtrate |
− |
1.145 |
x |
wS,B |
| Example 1 (ASI) |
| 1.38 | = | 8.2 | x |
2.46 | − | 1.145 | x |
16.41 |
