Terahertz Spectroscopic Analysis of Lactose in Infant Formula: Implications for Detection and Quantification
1
Issued Date
2022-08-01
Resource Type
eISSN
14203049
Scopus ID
2-s2.0-85136343164
Pubmed ID
35956992
Journal Title
Molecules
Volume
27
Issue
15
Rights Holder(s)
SCOPUS
Bibliographic Citation
Molecules Vol.27 No.15 (2022)
Suggested Citation
Datta S., Prasertsuk K., Khammata N., Rattanawan P., Chia J.Y., Jintamethasawat R., Chulapakorn T., Limpanuparb T. Terahertz Spectroscopic Analysis of Lactose in Infant Formula: Implications for Detection and Quantification. Molecules Vol.27 No.15 (2022). doi:10.3390/molecules27155040 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/84177
Title
Terahertz Spectroscopic Analysis of Lactose in Infant Formula: Implications for Detection and Quantification
Other Contributor(s)
Abstract
Lactose plays a significant role in daily lives as a constituent of various food and pharmaceutical products. Yet, lactose intolerance conditions demand low-lactose and lactose-free products in the market. These increasing nutritional claims and labels on food products entail simple and reliable methods of analysis that can be used for meeting quality standards, nutritional claims and legal requirements. In this study, terahertz time–domain spectroscopy (THz-TDS) was employed to analyse α-lactose monohydrate qualitatively and quantitatively in food products. Both absorption spectra and absorption coefficient spectra were investigated for their prediction performance. Regression models for lactose quantification using peak area and height of the absorption peaks 0.53 and 1.37 THz were developed and assessed in infant formula samples. Satisfactory prediction results were achieved in ideal conditions with pure standards, but not in all predictions of infant formula samples. Reasons and further implications are discussed.