Identification of Chinese green tea (Camellia sinensis) marker metabolites using GC/MS and UPLC-QTOF/MS

Wang, Yu-Shuai; Fang, Minzhe; Zheng, Shengdao; Cho, Jin‐Gyeong; Yi, Tae–Hoo

doi:10.1007/s10068-021-00970-4

Cited by 10 publications

(6 citation statements)

References 30 publications

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“…Among the 106 volatile components, alcohols showed the highest content, with the main substances including geraniol, benzyl alcohol, phenethyl alcohol, leaf alcohol, linalool, and their oxides, which are in line with previous studies ( Zhu et al, 2018 , Wang et al, 2021 ). For the five varieties, the content of alcohol compounds was in the order of Echa 10 (53.24%) > Zhenong 117 (52.49%) > Echa 1 (52.40%) > Fuyun 6 (44.07%) > Mingshan 131 (40.18%), with the higher alcohol content as an important potential reason for the better aroma quality of Echa 10.…”

Section: Resultssupporting

confidence: 91%

“…Except for Zhenong 117, the other varieties were relatively high in the content of benzaldehyde and decanal. Esters, such as acetic acid lactone, cis -3-hexenyl butyrate, methyl salicylate, and coumarin, are also common aroma components in green tea ( Wang, Fang, Zheng, Cho & Yi, 2021 ), which was supported by the results of this experiment. Among the 13 detected ester compounds, dihydrokiwifruit lactone showed the highest content, and its content was significantly higher in Mingshan 131 than in the other varieties.…”

Section: Resultssupporting

confidence: 76%

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Effects of different tea tree varieties on the color, aroma, and taste of Chinese Enshi green tea

Wei

et al. 2022

Food Chemistry: X

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 76%

Effects of different tea tree varieties on the color, aroma, and taste of Chinese Enshi green tea

Wei

et al. 2022

Food Chemistry: X

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“…The VIP value is an essential indicator for screening differential compounds. A higher VIP value indicates a greater impact on the differences among samples 45 . As shown in Figure 2B, eight compounds were obtained using a VIP value ≥1.0 (Table 2) as the threshold.…”

Section: Resultsmentioning

confidence: 99%

“…A higher VIP value indicates a greater impact on the differences among samples. 45 As shown in Figure 2B, eight compounds were obtained using a VIP value ≥1.0 (Table 2) as the threshold. The compounds were ranked in the order of VIP values as isopsoralen, calamenene, bakuchiol, psoralen, bavachinin, isoneobavaisoflavone, corylifol C, and neobavaisoflavone.…”

Section: Opls-da Analysis and Clustering Heat Map Analysismentioning

confidence: 99%

Exploring quality evaluation markers of Fructus Psoraleae based on chemometric analysis integrated with network pharmacology

Zhao,

Guo,

et al. 2023

Phytochemical Analysis

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IntroductionFructus Psoraleae (FP) is a well‐known traditional Chinese medicine for the treatment of osteoporosis. However, major quality differences were witnessed owing to its various origins, thus influencing its safety and efficacy.ObjectivesThe study aimed to evaluate the quality of FP from different origins and predict its quality evaluation markers.MethodsUltra‐high‐performance liquid chromatography coupled with quadrupole time‐of‐flight tandem mass spectrometry was employed for tentative characterisation of the constituents in 10 batches of FP, followed by the utilisation of multivariate statistical analysis methods including principal component analysis and orthogonal partial least squares discriminant analysis for quality evaluation. Network pharmacology approaches were utilised to explore the underlying mechanism of the screened chemotaxonomic markers in treating osteoporosis.ResultsForty‐one components in FP including, chalcones, coumarins, coumestans, flavonoids, iso‐flavonoids, and phenolics, were characterised based on their fragmentation pathways. Ten batches of FP were basically divided into three categories, and eight chemotaxonomic markers including isopsoralen, calamenene, bakuchiol, psoralen, bavachinin, isoneobavaisoflavone, corylifol C, and neobavaisoflavone were screened. Network pharmacology revealed that the chemotaxonomic markers can act on targets such as AKT1, HSP90AA1, and EGFR and possess effects mainly through glycolysis and wnt/β‐catenin signalling to alleviate osteoporosis. Molecular docking and molecular dynamic simulation confirmed the good binding affinity and stability between proteins and selected markers. So, eight chemotaxonomic markers were all preferentially recommended as quality evaluation markers.ConclusionThe study not only provides a reference for the improvement of quality control of FP but also offers a theoretical basis for its further in‐depth research in osteoporosis.

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“…Green tea was added to the culture medium due to its content of polyphenols, avonoids, proteins, and amino acids (Wang et al 2021). Its content increases the acidity content, which indicates the consumption of the carbon source and the development of acetic acid-producing bacteria (Treviño-Garza et al 2020).…”

Section: )mentioning

confidence: 99%

Production of Bacterial Cellulose and its Evaluation as a Proton Exchange Membrane

Ramírez-Carmona

Gálvez-Gómez

González-Perez

et al. 2022

Preprint

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Production of bacterial cellulose and its evaluation as a proton exchange membrane (PEM) was evaluated. Initially, the bacterial cellulose (BC) was produced by fermentation in a 600 mL bioreactor with a 300 mL medium volume, 10% v/v inoculum with Komagataeibacter hansenii under static conditions, and a temperature of 30°C. The bacteria were cultivated in Hestrin-Schramm (HS) medium with pH adjustment to 6.6 with HCl and/or NaOH. Five culture media were evaluated: HS (M1), M1 + green tea extract (M3), M1 + mixture of extra thyme and green tea (M4), and M1 + glycerin (M5). The kinetics of BC production was followed by digital images. Subsequently, BC production cellulose was carried out using M5 under the same operating conditions. After 3, 5, 10 and 13 days of fermentation, the thickness of formed BC formed was measured, respectively, as 0.301 ± 0.008 cm, 0.552 ± 0.026 cm, 0.584 ± 0.03 cm and 0.591 ± 0.018 cm. Finally, BC was characterized by porosity, water absorption capacity, ion exchange capacity, mechanical strength and diffusivity. The results showed that thinner membranes favor the processes of ion exchange (0.143 H+mmol g− 1) and water absorption (93%). On the other hand, thicker membranes enhance physical parameters of transport across the membrane and its operability. Nevertheless, BC membranes can be a good alternative as PEM once they are functionalized.

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Identification of Chinese green tea (Camellia sinensis) marker metabolites using GC/MS and UPLC-QTOF/MS

Cited by 10 publications

References 30 publications

Effects of different tea tree varieties on the color, aroma, and taste of Chinese Enshi green tea

Effects of different tea tree varieties on the color, aroma, and taste of Chinese Enshi green tea

Exploring quality evaluation markers of Fructus Psoraleae based on chemometric analysis integrated with network pharmacology

Production of Bacterial Cellulose and its Evaluation as a Proton Exchange Membrane

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