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Proceedings 2017, 1(2), 25; doi:10.3390/ecsa-3-C003

Surface-Enhanced Raman Spectroscopy Study of Commercial Fruit Juices

1
CNR-SPIN, Comprensorio Olivetti, 80078 Pozzuoli, Naples, Italy
2
Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, 80138 Naples, Italy
3
Institute of Genetics and Biophysics—ABT, 80131 Naples, Italy
4
Dipartimento di Scienze Ecologiche e Biologiche, Università della Tuscia, 01100 Viterbo, Italy
Presented at the 3rd International Electronic Conference on Sensors and Applications, 15–30 November 2016; Available online: https://sciforum.net/conference/ecsa-3.
*
Author to whom correspondence should be addressed.
Published: 14 November 2016
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Abstract

Surface-enhanced Raman Spectroscopy (SERS) is a vibrational spectroscopy holding potentials for a rapid evaluation of quality and composition of food industry products without any need of sample preparation. Among many nanomaterials, gold nanoparticles (GNPs) and their colloidal dispersions have attracted great interest for SERS applications due to their unique properties of small size, large surface area to volume ratio, high reactivity to the living cells, stability over high temperatures. In this frame, a low-cost substrate, based on home-made 30-nm sized GNPs, has been designed and used for the investigation of commercial fruit juices and pulp. Thanks to the use of a wavelet denoising procedure and background subtraction spectra with clear features have been obtained. Their analysis has enabled to evidence the presence of components of great importance for the quality evaluation of the products, such as fructose and pectin. The overall inspection of the results has confirmed the potentialities of SERS in food industry.
Keywords: SERS; food quality in-situ monitoring; nanosized substrates; commercial juices and pulp SERS; food quality in-situ monitoring; nanosized substrates; commercial juices and pulp
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Camerlingo, C.; Portaccio, M.; RosaritaTatè; Lepore, M.; Delfino, I. Surface-Enhanced Raman Spectroscopy Study of Commercial Fruit Juices. Proceedings 2017, 1, 25.

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