Over the last decades, a significant amount of research has found that Raman analysis on food and beverage products such as fruits, vegetables, meats, grains, food powders, and oils, is a highly reliable technique Raman systems with the help of the spectral and imaging data analysis techniques continue to advance. The industrial application of this technology may be a realistic option in the near future.
Raman spectroscopy is a versatile and dynamic method that can be used to perform both the qualitative and quantitative analysis for a wide range of samples. In the process of this analysis, a high-energy laser light is exposed to a sample, which will absorb and emit a certain amount of scattered light in the form of incident photons. Raman systems are used to measure the frequency of the scattered photons, whereas quantitative analysis of a sample is achieved by measuring the intensity of the scattered photons.
Some of the most common applications of Raman systems include the analysis of forensic samples, drugs of abuse and carbon materials, as well as samples in the pharmaceutical, cosmetic, biological, and geological industries.
The use of Raman systems within the food and beverage industry has been widely used for characterization purposes. It helps for evaluating the safety and quality attributes for a broad range of food and agricultural products. Researchers have investigated more sensitive techniques that can accurately detect pesticides, fungicides, herbicides, and other unwanted chemicals in a product while consumers continue to become more aware of potential contaminants entering their food and beverage products.
Different studies have been published utilizing Raman spectroscopy technology as a method to characterize, discriminate and identify various microorganisms in food products, as well as the ways in which these microorganisms respond to both abiotic and biotic stress. In addition to this, researchers have found that Raman spectroscopy can use as an analytical technique that accurately classified the different bacteria species present within mixed samples.
Optromix Raman fiber optic probes are miniaturized without compromising its performance, which is enabled by the technology of direct deposition of the dielectric filters at the fiber end faces. In results in a small, cost-effective Raman probe for different Raman systems and, for example, for endoscopic and other applications.
The fiber optic Raman probe is produced for multi-wave excitation in the range 690-785 nm and 1000-1064 nm, e.g. @785 nm – “Fingerprint” spectral range with fluorescence reduction, and @690 nm – “High wavelength” spectral range for conventional Raman spectrometers.