2024Journal article

Monitoring of carotenoids changes during the matcha drying process using a portable developed spectral analytical system

Jiang Y, Zareef M, Liu L, Ouyang Q

Journal of food composition and analysis : an official publication of the United Nations University, International Network of Food Data Systems

No online link was recorded for this study.

Abstract

Monitoring carotenoids during matcha drying processing is critical for determining the color and aroma quality of matcha. The objective of this study is to monitor the carotenoid content during different phases of matcha drying utilizing a portable near-infrared (NIR) spectroscopy. A total of 275 tea samples were obtained at various stages of drying for spectral acquisition and carotenoid analysis. After normalization preprocessing, bootstrapping soft shrinkage (BOSS), iteratively variable subset optimization (IVSO), and variable iterative space shrinkage approach (VISSA) were employed to select the characteristic variables and establish the partial least square (PLS) calibration models. The BOSS-PLS model achieved optimum performance, with a correlation coefficient (Rₚ) of 0.9592 and residual predictive deviation (RPD) of 3.47 in the prediction set. The results suggest that the portable NIR spectroscopy system is a promising tool that could be used as an alternative method for immediate quantification and monitoring of carotenoids during matcha drying processing.

Abstract text comes from PubMed, OpenAlex or Europe PMC and belongs to the authors and publisher.

Study type

Chemical / analytical

Measuring what is in matcha, or how to detect it.

Assigned automatically from the title, abstract and subject terms.

Topics

Processing, milling and quality Aroma, flavor and sensory Authenticity and analytical methods

Matcha is a main subject here (named in the title).

Cite this study

Jiang Y, Zareef M, Liu L, Ouyang Q. (2024). Monitoring of carotenoids changes during the matcha drying process using a portable developed spectral analytical system. Journal of food composition and analysis : an official publication of the United Nations University, International Network of Food Data Systems.

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