Details
| Original language | English |
|---|---|
| Pages (from-to) | 249-253 |
| Number of pages | 5 |
| Journal | Analytica chimica acta |
| Volume | 501 |
| Issue number | 2 |
| Publication status | Published - 7 Nov 2003 |
Abstract
One problem in industrial molasses desugarization is the lack of a fast analytical method for process control. At the moment, control of the chromatographic production process is achieved by detecting refractive index and conductivity. However, since elution of some components takes place only in a narrowly defined time frame, the data gained are insufficient for effective online product quantification. Near-infrared (NIR) spectroscopy was applied to this process by development of a simple method for detection of betaine. Compared to chemometric models currently used, the developed method demonstrates the advantage of requiring only a small calibration set. Additionally, it can easily be transferred to other processes without further re-calibration. Based on the NIR spectrum of betaine, a characteristic peak in the spectrum could be assigned to the molasses compound betaine. A calibration was developed by using dissolved betaine in pure water. Afterwards, the calibration was tested for samples from a molasses desugarization process. The method was than successfully transferred to a complete chromatographic cycle of the industrial molasses desugarization process.
Keywords
- Betaine, Molasses desugarization, NIR spectroscopy
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Environmental Science(all)
- Environmental Chemistry
- Chemistry(all)
- Spectroscopy
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In: Analytica chimica acta, Vol. 501, No. 2, 07.11.2003, p. 249-253.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Application of near-infrared spectroscopy in the sugar industry for the detection of betaine
AU - Harbeck, C.
AU - Faurie, R.
AU - Scheper, T.
N1 - Funding information: The authors wish to thank the European Commission for supporting this research as a part of the EU Project IN 30905 I.
PY - 2003/11/7
Y1 - 2003/11/7
N2 - One problem in industrial molasses desugarization is the lack of a fast analytical method for process control. At the moment, control of the chromatographic production process is achieved by detecting refractive index and conductivity. However, since elution of some components takes place only in a narrowly defined time frame, the data gained are insufficient for effective online product quantification. Near-infrared (NIR) spectroscopy was applied to this process by development of a simple method for detection of betaine. Compared to chemometric models currently used, the developed method demonstrates the advantage of requiring only a small calibration set. Additionally, it can easily be transferred to other processes without further re-calibration. Based on the NIR spectrum of betaine, a characteristic peak in the spectrum could be assigned to the molasses compound betaine. A calibration was developed by using dissolved betaine in pure water. Afterwards, the calibration was tested for samples from a molasses desugarization process. The method was than successfully transferred to a complete chromatographic cycle of the industrial molasses desugarization process.
AB - One problem in industrial molasses desugarization is the lack of a fast analytical method for process control. At the moment, control of the chromatographic production process is achieved by detecting refractive index and conductivity. However, since elution of some components takes place only in a narrowly defined time frame, the data gained are insufficient for effective online product quantification. Near-infrared (NIR) spectroscopy was applied to this process by development of a simple method for detection of betaine. Compared to chemometric models currently used, the developed method demonstrates the advantage of requiring only a small calibration set. Additionally, it can easily be transferred to other processes without further re-calibration. Based on the NIR spectrum of betaine, a characteristic peak in the spectrum could be assigned to the molasses compound betaine. A calibration was developed by using dissolved betaine in pure water. Afterwards, the calibration was tested for samples from a molasses desugarization process. The method was than successfully transferred to a complete chromatographic cycle of the industrial molasses desugarization process.
KW - Betaine
KW - Molasses desugarization
KW - NIR spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=0346851866&partnerID=8YFLogxK
U2 - 10.1016/j.aca.2003.09.032
DO - 10.1016/j.aca.2003.09.032
M3 - Article
AN - SCOPUS:0346851866
VL - 501
SP - 249
EP - 253
JO - Analytica chimica acta
JF - Analytica chimica acta
SN - 0003-2670
IS - 2
ER -