| 1. |
- English, William
(författare)
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Root tissue strength and storage losses of sugar beet varieties as affected by N application and irrigation
- 2022
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Ingår i: Zuckerindustrie. - : Verlag Dr. Albert Bartens KG. - 0344-8657. ; 147, s. 34-41
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Tidskriftsartikel (refereegranskat)abstract
- There is some evidence that sugar beet root tissue strength affects damage susceptibility and storage losses. This study aimed at analyzing the effect of N application and of irrigation on tissue strength of sugar beet varieties, on root composition, and on root tip breakage and storage losses. For this purpose, field trials in six replicates with three sugar beet varieties were carried out with three N doses in The Netherlands and Belgium in 2018 and 2019, alternatively with three irrigation treatments in Sweden in 2018 and 2019. Results show a low impact of N application and irrigation on puncture resistance, tissue firmness and compressive strength of the roots, while varieties differed always stronger and significantly. Cell wall composition (pectin, hemicellulose, cellulose, lignin) did not differ markedly in roots from different environments (sites, years) and varieties, giving no explanation for differences in tissue strength. However, the percentage of cell wall material (AIR, marc) and of dry matter were higher in roots with higher tissue strength. Root tip breakage and sugar losses during storage tended to be lower when root compressive strength of varieties was higher. Hence, root tissue strength could serve as an indirect selection criterion for reduced damage susceptibility and improved storability of sugar beet varieties.
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| 2. |
- Janssens, O, et al.
(författare)
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Beet top and leaf determination through image processing
- 2006
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Ingår i: Zuckerindustrie. - 0344-8657. ; 131:1, s. 21-7
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Tidskriftsartikel (refereegranskat)abstract
- It is important for the European sugar industry to reduce its production costs in order to deal with the reforms of sugar agreements, by being ever mindful of the quality of the raw material. A new image technique has been developed to this end: it allows determination of certain quality criteria, such as: top and leafstalk rates in beet. The device consists of a color camera set in a closed space under constant lighting. The camera is linked to a computer where the images are processed by a software providing on-line predictions. To integrate all the variability proper to the samples taken at the sugar factory, the algorithm presented here is based on a PLS regression on the basis of color image characteristics. The correlations obtained between the visual predictions and the manual references are close to the maximum limits that could be hoped for, taking account of the variability of the manual determination of the beet top. The following factors have been identified as favoring the quality of the forecasts: images from large samples, the turning of those samples and the individual presentation of the beet. The determination of the beet leafstalks is also possible using the same algorithms. This is a less complex task yielding higher correlations.
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| 3. |
- Lipnizki, F, et al.
(författare)
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Applications of membrane processes in the beet and cane sugar production
- 2006
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Ingår i: Zuckerindustrie. - 0344-8657. ; 131:1, s. 28-38
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Tidskriftsartikel (refereegranskat)abstract
- Despite their success in different segments of the food industry, membranes are not well-established in the beet and cane sugar industry. A comprehensive overview on the potential applications of membranes in both the beet and cane sugar industry is given. The part on the beet sugar industry focuses on pulp press water recycling, pectin production from beet pulp, beet juice purification, demineralization of beet sugar juice and thin juice concentration. Potiential opportunities of membranes in cane sugar/cane refining industry are raw cane juice purification, clarified cane juice concentration, raw syrup purification, molasses treatment and decolorization of remelted raw sugar. Further, the ion-exchange resin regeneration waste recycling, sweet water concentration and evaporator condensate polishing are discussed. Overall, this article emphasizes the successes and potentials of membrane technology in the sugar industry.
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