The drying process is a critical stage in developing the aroma quality of tencha. In our research, visible near infrared (Vis-NIR) and colorimetric sensor array (Vis-NIR-CSA) were used for evaluating the aroma quality of tencha drying process. Vis-NIR recorded the spectral signal of CSA after the reaction in samples. Subsequently, the aroma quality was predicted by a combination of different data fusion strategies and classification and regression tree (CART) in tencha drying process. The high-level fusion strategy showed the best performance, with calibration and prediction set accuracy of 94.68% and 93.48%, respectively. The results indicated that Vis-NIR-CSA combined with high-level data fusion could be applied satisfactorily in the aroma quality evaluation of tencha. Moreover, pentanal was identified to be highly correlated with aroma quality during tencha drying process, which verified the sensor identification results. This study contributed to controlling good manufacturing practices and designing optimal tencha processing systems.
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http://dx.doi.org/10.1016/j.saa.2023.123385 | DOI Listing |
J AOAC Int
January 2025
College of Food Science and Engineering, Jilin University, Changchun, 130062, China.
Background: Yogurt has emerged as an essential nutritional food in contemporary diets, and the development of new multi-component yogurt formulations has become a focal point of current research.
Objective: In this study, the effects of fermentation compounds and the addition of sugar, soy milk on the quality and probiotic activity of milk-soy mixed yogurt were studied to determine the optimal formation of mixed yogurt.
Methods: The various fermentation compounds (YO-MIX 883, Lactobacillus Casei complex starter cultures, Lactobacillus Paracasei compound starter cultures), different concentrations of milk-soy additions (0, 25, 50, 75, 100%) and sugar (2, 4, 6, 8%) were tested within each experimental group, and the pH, appropriate acidity, and total viable bacterial count of the fermented milk-soy mixed yogurt were determined throughout the fermentation and refrigeration processes.
Front Plant Sci
December 2024
School of Food Engineering, Yantai Key Laboratory of Nanoscience and Technology for Prepared Food, Yantai Engineering Research Center of Green Food Processing and Quality Control, Ludong University, Yantai, Shandong, China.
Introduction: Sweet cherries ( L.) are highly valued for their taste and nutrients but are prone to decay due to their delicate skin and high respiration rate. Traditional chemical preservatives have drawbacks like residues and resistance, prompting the search for natural alternatives.
View Article and Find Full Text PDFFood Sci Biotechnol
January 2025
Department of Food Science and Technology, Ohio State University, Columbus, OH 43210 USA.
This review examines analytical methodology for food flavor analysis. Traditionally, flavor chemistry research has relied on sensory-guided chromatography techniques to identify individual compounds responsible for aroma or taste activity. Among the over 12,000 volatile compounds identified in foods, hundreds have been linked to aroma characteristics, and many taste-active compounds have also been discovered.
View Article and Find Full Text PDFFood Chem X
January 2025
Tea Research Institute, College of Agriculture and Biotechnolgy, Zhejiang University, Hangzhou 310058, PR China.
The fresh aroma of Longjing tea is vulnerable to unfavorable storage conditions. However, limited research has addressed effective solutions apart from low-temperature storage. This study aimed to investigate the impact of oxygen scavenger on aroma quality of packaged Longjing tea samples at elevated storage temperatures.
View Article and Find Full Text PDFFood Chem X
January 2025
Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China.
Dried (DZM) is one of the popular categories in spices and condiments market. The flavor and quality of DZM products determine its value and application scope. This study evaluated the flavor and quality of DZMs from various origins, considering physical, chemical, and safety attributes.
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