Open AccessDispersive Raman Spectroscopy for the Nondestructive and Rapid Assessment of the Quality of Southern Italian Honey Types
Author(s) -
Anna Grazia Mignani,
Leonardo Ciaccheri,
Andrea Azelio Mencaglia,
Rosa Di Sanzo,
Sonia Carabetta,
Mariateresa Russo
Publication year - 2016
Publication title -
journal of lightwave technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.346
H-Index - 200
eISSN - 1558-2213
pISSN - 0733-8724
DOI - 10.1109/jlt.2016.2539550
Subject(s) - communication, networking and broadcast technologies , photonics and electrooptics
Raman spectroscopy performed using optical fibers, with excitation at 1064 nm and a dispersive detection scheme, was utilized to measure a selection of unifloral honeys produced in the Italian region of Calabria. The honey samples had three different botanical origins: chestnut, citrus, and acacia. A multivariate processing of the spectroscopic data enabled us to distinguish their botanical origin, and to build predictive models for quantifying important nutraceutic indicators, such as the main sugars and potassium. Furthermore, the Raman spectra of chestnut honeys were compared with the taste profile measured by an electronic tongue: A good correlation to a bitter-savory taste was obtained. This experiment indicates the excellent potential of Raman spectroscopy as a modern analytical tool for the nondestructive and rapid multi-component analysis of food quality indicators.