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Proceedings Paper

Blueberry juices: a rapid multi-analysis of quality indicators by means of dispersive Raman spectroscopy excited at 1064 nm
Author(s): L. Ciaccheri; T. Yuan; S. Zhang; A. A. Mencaglia; C. Trono; L. Yuan; A. G. Mignani
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Paper Abstract

Blueberry juices produced in China and in Italy were analyzed by means of Raman spectroscopy. The reference data of important nutraceutical indicators such as degrees Brix and carbohydrates were available. Some juices were produced from fresh organic fruits, while others were industrial grade, differing in qualities and prices. Raman spectra obtained with excitation at 1064 nm were acquired using a dispersive fiber-optic spectrometer. Degrees Brix were measured by means of a commercial refractometer, while carbohydrate contents were available from the producers. Multivariate processing was used for predicting Brix and carbohydrates from Raman spectra and from the reference data. Determination coefficients equal to 0.88 and 0.84, respectively, were obtained. This experiment further confirms the excellent potentials of Raman spectroscopy for both non-destructive and rapid assessments of food quality.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032332 (23 April 2017); doi: 10.1117/12.2264608
Show Author Affiliations
L. Ciaccheri, Istituto di Fisica Applicata "Nello Carrara" (Italy)
T. Yuan, Harbin Engineering Univ. (China)
S. Zhang, Harbin Engineering Univ. (China)
A. A. Mencaglia, Istituto di Fisica Applicata "Nello Carrara" (Italy)
C. Trono, Istituto di Fisica Applicata "Nello Carrara" (Italy)
L. Yuan, Harbin Engineering Univ. (China)
A. G. Mignani, Istituto di Fisica Applicata "Nello Carrara" (Italy)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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