Molecules, Vol. 28, Pages 7891: The Application of Handheld Near-Infrared Spectroscopy and Raman Spectroscopic Imaging for the Identification and Quality Control of Food Products
W. Siesler
The following investigations describe the potential of handheld NIR spectroscopy and Raman imaging measurements for the identification and authentication of food products. On the one hand, during the last decade, handheld NIR spectroscopy has made the greatest progress among vibrational spectroscopic methods in terms of miniaturization and price/performance ratio, and on the other hand, the Raman spectroscopic imaging method can achieve the best lateral resolution when examining the heterogeneous composition of samples. The utilization of both methods is further enhanced via the combination with chemometric...
Source: Molecules - December 1, 2023 Category: Chemistry Authors: Hui Yan Marina D. G. Neves Barry M. Wise Ingrid A. Moraes Douglas F. Barbin Heinz W. Siesler Tags: Article Source Type: research
Green extraction of phenolics using deep eutectic solvents: a promising neoteric method
This study aims to investigate the potential of DESs as neoteric extraction media for phenolics-rich flower clove extracts. Two DESs were synthesised by mixing choline chloride with glycerol and lactic acid at a molar ratio of 1:2. The thermal profiles of the mixture were analysed using differential scanning calorimetry, and the viscosity and density were measured at different temperatures. The phenolic compounds were quantitatively characterised for all of the extractants using high-performance liquid chromatography. The total phenolic content and the antioxidant activities of the extracts were determined. The results sho...
Source: Natural Product Research - November 28, 2023 Category: Biochemistry Authors: Mohamad Hamdi Zainal-Abidin Sonny Kristianto Siti Nuresyanah Esnin Juan Matmin Roswanira Abdul Wahab Wan M Asyraf Wan Mahmood Wimbuh Tri Widodo Source Type: research
Green extraction of phenolics using deep eutectic solvents: a promising neoteric method
This study aims to investigate the potential of DESs as neoteric extraction media for phenolics-rich flower clove extracts. Two DESs were synthesised by mixing choline chloride with glycerol and lactic acid at a molar ratio of 1:2. The thermal profiles of the mixture were analysed using differential scanning calorimetry, and the viscosity and density were measured at different temperatures. The phenolic compounds were quantitatively characterised for all of the extractants using high-performance liquid chromatography. The total phenolic content and the antioxidant activities of the extracts were determined. The results sho...
Source: Natural Product Research - November 28, 2023 Category: Biochemistry Authors: Mohamad Hamdi Zainal-Abidin Sonny Kristianto Siti Nuresyanah Esnin Juan Matmin Roswanira Abdul Wahab Wan M Asyraf Wan Mahmood Wimbuh Tri Widodo Source Type: research
Antioxidant Capacity of Eugenol and Its Effect on Intestinal Flora Under in Vitro Simulated Conditions
This study looked at eugenol's antioxidant potential and its impact on the flora in the intestinal tract of humans. Eugenol's ability to scavenge superoxide anions and 2,2-biphenyl-1-picrylhydrazyl (DPPH) radicals, as well as its impact on the growth of common intestinal bacteria Lactobacillus and Escherichia coli, were studied at various eugenol concentrations. The results showed that different optimal antioxidant concentrations of eugenol existed for different free radicals, and the optimal antioxidant concentrations for DPPH and superoxide anion were 0.16 μL/mL and 0.04 μL/mL, respectively. Low concentrations of eugen...
Source: Studies in Health Technology and Informatics - November 26, 2023 Category: Information Technology Authors: Jinshan Dai Source Type: research
