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Raman spectroscopy was used to measure a collection of honeys belonging to three botanical origins: chestnut, acacia, and citrus, respectively. The excitation wavelength was set at 1064 nm to mitigate fluorescence effects, and a dispersive detection scheme was used, thus allowing compactness of the optical system. The spectroscopic data were processed using Principal Component Analysis for data dimensionality...
Surface-Enhance Raman Spectroscopy (SERS) have been widely used in many applications. One of its functions is to detect the purity of honey. The objective of this project is to investigate the spectrum of low and high concentration of honey using Surface-Enhance Raman Spectroscopy. The spectrum of pure honey and the spectrum of diluted honey ranges between 5% and 25% (w/w) of water were collected...
In biological process, it not simple to analyze concentrations of a mixture in bioreactor because pre-processing is required for analyzing bio-product. Also, on-line monitoring of biological processes is essential for maximizing productivity because reactions are very slow. The Raman spectroscopy is suitable for on-line monitoring of bioprocess with proper analysis algorithms. This work proposes a...
The estimation of the nutritional parameters of food products is a difficult and laborious process. Many companies spend considerable financial and other resources to frequently check the nutritional facts of their products. In addition, current methods are unsuitable for day-to-day, restaurant or home use. A new device, that would automatically estimate the nutritional facts of any edible product,...
Cellular dynamics of nutrient-triggered germination of single bacterial spores and fermentation process of single yeast cells in an optical trap are probed with Raman spectroscopy.
A confocal coherent anti-Stokes Raman spectrometer was successfully applied to sensitive detection of THz-frequency modes in biomolecules (0.9-51 THz). Furthermore, it was found to be applicable even for powder samples by detecting backward signal.
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