Hops provide the characteristic bitter taste and attractive aroma to beer; in this study, hops were replaced by jasmine tea extract (JTE) during late-hopping. The addition of JTE improved the beer foam stability 1.52-fold, and increased the polyphenol and organic acid contents. Linalool was the most important aroma compound in hopped (HOPB) and jasmine tea beer (JTB), but other flavor components were markedly different, including dimeric catechins, flavone/flavonol glycosides, and bitter acids and derivatives. Sensory evaluation indicated that addition of JTE increased the floral and fresh-scent aromas, reduced bitterness and improved the organoleptic quality of the beer. The antioxidant capacity of JTB was much higher than that of HOPB. The inhibition of amylase activity by JTB was 30.5% higher than that of HOPB. Functional properties to beer were added by substituting jasmine tea extract for hops during late hopping.
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http://dx.doi.org/10.3389/fnut.2023.1109109 | DOI Listing |
Food Chem
March 2025
Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China. Electronic address:
Food Chem
February 2025
Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China. Electronic address:
Food Chem
February 2025
Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China. Electronic address:
This study investigated the dynamic changes in jasmine tea during the scenting process and explored the differences in the aroma characteristics of jasmine tea scented with single-petal jasmine "Bijian" and traditional double-petal jasmine "Shuangban." Twenty-one key volatile compounds were identified from jasmine tea by headspace solid-phase microextraction-gas chromatography-mass spectrometry. Compared with the intensely floral and sweet fragrance characteristic of jasmine tea scented with double-petal jasmine "Shuangban," the tea scented with single-petal jasmine "Bijian" exhibited a fresher aroma, which can be attributed to the accumulation of methyl benzoate.
View Article and Find Full Text PDFSheng Wu Gong Cheng Xue Bao
October 2024
College of Life Science, Fujian Normal University, Fuzhou 350117, Fujian, China.
Terpene synthases (TPSs) play a crucial role in the synthesis of terpenoids that contribute to the scent profiles of flowers. However, few studies report the genome-wide analysis of s gene in var. and their expression pattern in response to methyl jasmonate (MeJA).
View Article and Find Full Text PDFGels
October 2024
Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Food Science, Southwest University, Chongqing 400715, China.
Enhancing the sensory appeal of jasmine instant tea, particularly its aroma, poses a significant challenge due to the loss of volatile organic compounds during conventional processing. This study introduces a novel approach to address this issue through the application of microencapsulation techniques, aimed at preserving these key aromatic elements. Our investigation focused on the encapsulating agents gelatin, acacia gum, carboxymethylcellulose (CMC), and maltodextrin, chosen for their compatibility with the volatile organic compounds of tea.
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