77bbdba59d5d2210aa6858aff4b070ac foods_11_02187_v3.pdf 2c134ce8c10127f788a9d5176788fee20dc73a62 foods_11_02187_v3.pdf a9cc91bb7b05c0256f9695e4db63b98d871e6bd070a5d9d85d495ef4d110b919 foods_11_02187_v3.pdf Title: A Comparative Study of Benchtop and Portable NIR and Raman Spectroscopic Methods for the Quantitative Determination of Curcuminoids in Turmeric Powder Subject: Turmeric consumption is continually increasing worldwide. Curcuminoids are major active constituents in turmeric and are associated with numerous health benefits. A combination of spectroscopic methods and chemometrics shows the suitability of turmeric for food quality control due to advantages such as speed, versatility, portability, and no need for sample preparation. Five calibration models to quantify curcuminoids in turmeric were proposed using benchtop and portable devices. The most remarkable results showed that Raman and NIR calibration models present an excellent performance reporting RMSEP of 0.44% w/w and 0.41% w/w, respectively. In addition, the five proposed methods (FT-IR, Raman, and NIR) were compared in terms of precision and accuracy. The results showed that benchtop and portable methods were in good agreement and that there are no significant differences between them. This study aims to foster the use of portable devices for food quality control in situ by demonstrating their suitability for the purpose. Keywords: curcuminoids; turmeric; food quality; nondestructive analysis; portable NIR; portable Raman Author: Putthiporn Khongkaew, Jordi Cruz, Judit Puig Bertotto, Vanessa Cárdenas, Manel Alcalà, Nantana Nuchtavorn and Chutima Phechkrajang Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Mon Aug 1 08:23:26 2022 CEST ModDate: Mon Aug 1 08:36:19 2022 CEST Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 13 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 2265569 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- ZTUHML+VnURWPalladioL Type 1 Custom yes yes no 10 0 GUYNCA+URWPalladioL-Bold Type 1 Custom yes yes no 15 0 QOAQHT+URWPalladioL-Roma Type 1 Custom yes yes no 20 0 OTHKCZ+URWPalladioL-Ital Type 1 Custom yes yes no 24 0 AZUTVD+VnURWPalladioL-Bold Type 1 Custom yes yes no 28 0 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no 161 0 BAMLPA+Symbol Type 1C Custom yes yes yes 171 0 BAMIGP+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 176 0 BAMIHB+PalatinoLinotype TrueType WinAnsi yes yes no 179 0 BAMIHD+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 182 0 Jhove (Rel. 1.22.1, 2019-04-17) Date: 2023-06-23 02:32:03 CEST RepresentationInformation: foods_11_02187_v3.pdf ReportingModule: PDF-hul, Rel. 1.12.1 (2019-04-17) LastModified: 2023-06-22 13:40:55 CEST Size: 2265569 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 322 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@44c8afef Item: Title: Materials and Methods Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7b69c6ba Children: Item: Title: Sample Preparation Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@46daef40 Item: Title: HPLC Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@12f41634 Item: Title: Benchtop NIR Spectroscopy Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@13c27452 Item: Title: Benchtop FT-IR Spectroscopy Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@262b2c86 Item: Title: Benchtop Raman Spectroscopy Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@371a67ec Item: Title: Portable NIR Spectroscopy Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@5ed828d Item: Title: Portable Raman Spectroscopy Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@50d0686 Item: Title: PLSR Model Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7a3d45bd Item: Title: Results and Discussion Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1e7c7811 Children: Item: Title: HPLC Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77ec78b9 Item: Title: Benchtop vs. Portable Spectroscopic Platforms Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1a3869f4 Item: Title: Benchtop Platforms Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@a38d7a3 Item: Title: Portable Spectroscopic Platforms Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77f99a05 Item: Title: Comparison of Benchtop and Portable Spectroscopic Platforms Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@63440df3 Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@3aeaafa6 Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@76a3e297 Info: Title: A Comparative Study of Benchtop and Portable NIR and Raman Spectroscopic Methods for the Quantitative Determination of Curcuminoids in Turmeric Powder Author: Putthiporn Khongkaew, Jordi Cruz, Judit Puig Bertotto, Vanessa Cárdenas, Manel Alcalà, Nantana Nuchtavorn and Chutima Phechkrajang Subject: Turmeric consumption is continually increasing worldwide. Curcuminoids are major active constituents in turmeric and are associated with numerous health benefits. A combination of spectroscopic methods and chemometrics shows the suitability of turmeric for food quality control due to advantages such as speed, versatility, portability, and no need for sample preparation. Five calibration models to quantify curcuminoids in turmeric were proposed using benchtop and portable devices. The most remarkable results showed that Raman and NIR calibration models present an excellent performance reporting RMSEP of 0.44% w/w and 0.41% w/w, respectively. In addition, the five proposed methods (FT-IR, Raman, and NIR) were compared in terms of precision and accuracy. The results showed that benchtop and portable methods were in good agreement and that there are no significant differences between them. This study aims to foster the use of portable devices for food quality control in situ by demonstrating their suitability for the purpose. 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