Emerging applications of nano-optical sensors combined with near-infrared spectroscopy for detecting tea extract fermentation aroma under ultrasound-assisted sonication

• DOI: 10.1016/j.ultsonch.2022.106095
• Publication Date: 2022-07-11T16:06:57Z
• Authors: Wencui Kang; Hao Lin; Ruiqi Jiang; Yuqian Yan; Waqas Ahmad; Qin Ouyang; Quansheng Chen
• Keywords: Sonication; Sonochemistry

The current innovative work combines nano-optical sensors with near-infrared spectroscopy for rapid detection and quantification of polyphenols investigates the potential sensor based on chemo-selective colorants to detect dynamic changes in aroma components during fermentation tea extract. procedure examined influence different ultrasound-assisted sonication factors consumption rate extract versus non-sonication as a control group. results showed that polyphenol improved under ultrasound conditions 28 kHz frequency, 24 min treatment time, 40 W/L ultrasonic power density. metal-organic framework reported here have more adsorption sites enhanced volatile organic compounds. polystyrene-acrylic microstructure offered specific surface area reactants. Besides, employed porous silica nanospheres higher porosity administered gas enrichment effect. exhibits good performance "chromatogram" identification process proposed method respectively by 35.57%, 11.34% 16.09% optimized conditions. Based established quantitative prediction models, this demonstrated feasibility using perform in-situ imaging degree extracts subjected treatment.