Visible-Near Infrared Reflectance Spectroscopy for Rhodamine B Detection in Chili Paste Using Principal Component Analysis

DOI

10.2991/978-94-6463-086-2_65How to use a DOI?

Keywords

PCA; Rhodamine B; Spectra; Visible-NIR

Abstract

A destructive testing for identification the presence of non-food grade Rhodamine B (RhB) dyes in food products requires complex sample preparation and is not environmentally friendly because of chemical using. Even though, this testing for foodstuffs such as chili paste requires more simple, rapid testing and does not pollute the environment. Therefore, this study aims to develop a non-destructive method to detect RhB dye in chili paste using Visible-Near Infrared Reflectance (Vis-NIR) Spectroscopy. The sample spectra were acquired using light waves in the wavelength spectrum of 300–1000 nm. The acquired spectra were analysed using Savitzky-Golay's Derivative pre-treatment to reduce noise in the spectra. Principal Component Analysis (PCA) was used to classify chili paste sample spectra data into two groups, consisting of samples containing RhB and without RhB. The results showed that PCA combined with Savitzky-Golay derivative pre-treatment was able to distinguish samples with and without RhB better than PCA in the raw spectrum without pre-treatment. Samples without RhB clustered well with a success rate of 83.67% while samples containing RhB clustered with a success rate of 94.52%. Capsanthin and anthocyanins compounds as red pigments in fruits and vegetables were detected at wavelengths of 562 nm and 590 nm.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Hannum Cintya Chairuniza
AU  - Jumeri
AU  - Rudiati Evi Masithoh
AU  - Wahyu Supartono
AU  - Nafis Khuriyati
PY  - 2022
DA  - 2022/12/28
TI  - Visible-Near Infrared Reflectance Spectroscopy for Rhodamine B Detection in Chili Paste Using Principal Component Analysis
BT  - Proceedings of the International Conference on Sustainable Environment, Agriculture and Tourism (ICOSEAT 2022)
PB  - Atlantis Press
SP  - 476
EP  - 483
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-086-2_65
DO  - 10.2991/978-94-6463-086-2_65
ID  - Chairuniza2022
ER  -