MOLECULES
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2022
·Vol. 27
·期 22
·7743
·
IF 4.927
Qian Zhou,Shanshan Zhang,Xue Geng,Haiqiang Jiang,Yanpeng Dai,Ping Wang,Min Hua,Qi Gao,Shiyue Lang,Lijing Hou,Dianhua Shi,Meng Zhou
Licorice (Gan-Cao, licorice) is a natural antioxidant and roasted licorice is the most common processing specification used in traditional Chinese medicine prescriptions. Traditional Chinese medicine theory deems that the honey-roasting process can promote the efficacy of licorice, including tonifying the spleen and augmenting “Qi” (energy). The antioxidant activity and mechanisms underlying roasted licorice have not yet been reported. In this study, we found that roasted licorice could relieve the oxidative stress injury induced by metronidazole (MTZ) and could restrain the production of excessive reactive oxygen species (ROS) induced by 2,2′-azobis (2-methylpropionamidine) dihydrochloride (AAPH) in a zebrafish model. It was further found that roasted licorice could exert its oxidative activity by upregulating the expression of key genes such as heme oxygenase 1 (HO-1), NAD(P)H quinone dehydrogenase 1 (NQO1), glutamate–cysteine ligase modifier subunit (GCLM), and glutamate–cysteine ligase catalytic subunit (GCLC) in the nuclear factor erythroid 2-related factor 2 (NRF2) signaling pathway both in vivo and in vitro. Furthermore, consistent results were obtained showing that rat serum containing roasted licorice was estimated to reduce cell apoptosis induced by H2O2. Then, the UHPLC-Q-Exactive Orbitrap MS analysis results elucidated the chemical composition of rat plasma containing roasted licorice extracts, including ten prototype chemical components and five metabolic components. Among them, six compounds were found to have binding activity with Kelch-like ECH-associated protein 1 (KEAP1), which plays a crucial role in the transcriptional activity of NRF2, using a molecular docking simulation. The results also showed that liquiritigenin had the strongest binding ability with KEAP1. Immunofluorescence further confirmed that liquiritigenin could induce the nuclear translocation of NRF2. In summary, this study provides a better understanding of the antioxidant effect and mechanisms of roasted licorice, and lays a theoretical foundation for the development of a potential antioxidant for use in clinical practice.Keywords:roasted licorice;antioxidant;NRF2;KEAP1;UHPLC-Q-Exactive Orbitrap MS;zebrafish model
研究领域:
药理学
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分子生物学
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中医
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生物化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2025
·
IF 2.8
Changhai Sun,Mengxin Xiao,Biyue Cui,Liting Mu,Shuting Zhang,Xinran Zhang,Shushuang Shen
In the current research on Scutellaria baicalensis, a substantial number of flavonoid isomers were identified. Given the limitations of existing analytical methods to accurately identify these isomers, the present study was conducted to determine the flavonoid isomers in Scutellaria baicalensis by combining the mass spectrometry database and stepwise multiple linear regression QSRR model of flavonoids established by the research group in the previous phase. The UHPLC-Q-Exactive Orbitrap-MS technique with isocratic elution injection was employed, and compositional analysis of Scutellaria baicalensis was conducted utilizing the mass spectrometry database to identify two groups of flavonoids and their isomers. The QSRR model was calibrated using standards, and the two groups of flavonoids and their isomers in Scutellaria baicalensis were distinguished and identified utilizing the QSRR model and calibration equation. In this investigation, two groups of flavonoids and their isomers in Scutellaria baicalensis were successfully identified and differentiated. The findings suggest that this QSRR model can be utilized to identify flavonoid isomers, providing a viable method for differentiating isomers of chemical components.
研究领域:
植物化学
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分析化学
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药学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD QUALITY
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2024
·
IF 2.6
Menglu Yang,Yuan Mei,Haimei Lai,Yali Wang,Yuli Huang,Xueqing Zeng,Lihong Ge,Nan Zhao
Hotpot provides a multilevel unique flavor experience and is preferred by consumers who value various taste preferences. In the present study, results showed that alcohols, phenols, hydrocarbons, and others were the commonly predominant volatiles in all butter hotpot samples (74.43%∼92.92%). However, there were merely 25 codetected compounds determined among a total of 318 aroma compounds because of the discrepant ingredients and processing technique of hotpot samples, which were sampled from several representative manufacturers. Therefore, for the first time, multiple GC-Q-TOF/MS and GC-Orbitrap-MS methods were performed to explore the more 44 potential aroma compounds of butter hotpot, in which alpha-terpinyl, acetate, nonanal, piperitone, and (E)-lignstilde could further cause the differences in flavor intensity of spices aroma, smell of grease, and roasted, charred, and nutty (). Linalool and nerol were the critical flavor precursors associated with ingredients and processing technic. Therefore, these results provide guidance for improving the butter hotpot formula and process technique.
研究领域:
食品科学
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分析化学
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产品关联
DOI
高影响因子
Foods
·
2021
·Vol. 10
·期 11
·2765
·
IF 4.35
Fanghua Guo,Rong Tsao,Chuyao Li,Xiaoya Wang,Hua Zhang,Li Jiang,Yong Sun,Hua Xiong
As a processing by-product, green pea hull (GPH) was found to be rich in phenolic components in our previous studies. In this study, UHPLC-LTQ-OrbiTrap-MS (Ultra performance liquid chromatography-linear ion trap orbitrap tandem mass spectrometry) technique was used to quantify polyphenols, and DSS (sodium dextran sulfate)-induced colitis mouse model was established to explore the effect of GPH extracts on colitis. The results showed that quercetin and its derivatives, kaempferol trihexanside and catechin and its derivatives were the main phenolic substances in the extract, reaching 2836.57, 1482.00 and 1339.91 µg quercetin/g GPH extract, respectively; GPH extracts can improved inflammatory status, repaired colonic function, regulated inflammatory factors, and restored oxidative balance in mice. Further, GPH extracts can activate Keap1-Nrf2-ARE signaling pathway, regulate downstream antioxidant protease and gut microbiota by increasing F/B value and promoting the growth ofLactobacillaceaeandLachnospiraceae, and improve the level of SCFAs (short-chain fatty acids) to relieve DSS-induced colitis in mice. Therefore, GPH may be a promising dietary resource for the treatment of ulcerative colitis.Keywords:polyphenols;colitis;UHPLC-LTQ-OrbiTrap-MS;GPH extracts;Keap1-Nrf2;gut microbiota
研究领域:
药理学
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营养学
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免疫学
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微生物学
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产品关联
DOI
PubMed
高影响因子
Natural Product Communications
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2024
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IF 1.5
Shen-long Yan,Kai-lin Li,Qing-rui Yang,Kai-quan Yu,Ling Liu,Qing Li,Lin-wen Wen,Cong Huang,Hui Li,Yan-nan Liu
ObjectiveTo further explore the unknown chemical composition and aimed to develop a reliable strategy for characterizing compounds in Rhodobryum roseum (R. roseum).MethodsThis study employed an efficient, high-sensitivity, and high-resolution analysis method. The method utilized UHPLC-Q-Exactive Orbitrap MS, along with trace data acquisition mode (parallel reaction monitoring scanning, PRM), and multiple data processing methods.ResultsA total of 77 chemical substances were identified in R. roseum, including 16 amino acids, 33 organic acids including 6 aromatic acids, 8 phenolics compounds, 2 flavonoid glycosides, 4 flavonoids and 14 other compounds including 4 fatty alcohols by comparing with reference substances, secondary characteristic ion fragments, public databases, and literature. Among these, 74 compounds were found in this plant for the first time.ConclusionThis result significantly expands the knowledge of the chemical constituents of R. roseum and contributes to the understanding of its active constituents for quality control.
研究领域:
植物化学
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分析化学
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药用植物学
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DOI
高影响因子
FUEL
·
2025
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IF 7.5
Yan Zhang,Yaqi Wang,Zhengyu Chen,Quan Shi,Linzhou Zhang
Pyrolysis has emerged as a key approach for converting plastic waste into valuable resources. However, this process is an extremely complex reaction system, and the molecular conversion behavior and pathways have not been fully understood. This study systematically investigated the thermal pyrolysis of polypropylene (PP) over a temperature range of 420–500 °C, and the composition of PP pyrolysis oils was analyzed using Ag + complexation electrospray ionization high-resolution Orbitrap mass spectrometry. The results indicate that the pyrolysis oils are primarily composed of mono-olefins and diolefins at lower temperature and pressure, with a three-carbon repeating unit. Secondary reactions intensified at elevated temperatures and pressure, progressively converting heavy olefins to polycyclic aromatics. The results of mass spectrometry analysis were compared with gas chromatography showing significant advantages, and were in good agreement with the molecular structure information provided by nuclear magnetic resonance hydrogen spectroscopy and Fourier transform infrared spectroscopy. Furthermore, the PP pyrolysis pathways at varying temperatures were proposed showing the full pathway of cracking and aromatization.
研究领域:
环境科学
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化学工程
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分析化学
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产品关联
DOI
高影响因子
BIOMEDICAL CHROMATOGRAPHY
·
2025
·Vol. 39
·期 2
·e6060
·
IF 1.7
Chen Wang,Xueying Qin,Ying Wang,Weiping Wang,Shuai Sun,Hongsen Wang,Shiyu Li,Xiao Dai,Xianhong Zhu,Xun Gao,Kunming Qin,Qing Zhang
Choerospondias axillaris is a medicinal plant used for treating coronary heart disease (CHD) due to its broad spectrum of anti-inflammatory activities. Cyclooxygenase 2 (COX-2) and lipoxygenase 5 (5-LOX) were immobilized on magnetic nanoparticles for selective ligand-extraction of these two enzymes present in C. axillaris . Sixteen extracted components were identified and analyzed using ultraperformance liquid chromatography plus Q-Exactive Orbitrap tandem mass spectrometry (UHPLC-Q-ExactiveOrbitrap-MS/MS), including flavonoids Curcumin and Epicatechin. The metabolization of the aforementioned 16 components in rats with acute blood stasis indicated a solid pharmacodynamic foundation. This method offers an effective approach for conducting basic research on the enrichment, analysis, and efficacy evaluation of active components in complex natural products.
研究领域:
药理学
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分析化学
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天然产物研究
✓ 已验证
DOI
PubMed
高影响因子
Journal of Oleo Science
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2025
·
IF 1.8
Lin Gu,Yuan Gao,Wenxin Li,Jianing Liu,Danyang Wang,Yongjie Chi,Jing Zhang,Qingyan Gai,Habiba Nazir,Qingye Jia,Huimei Wang,Lianyan Wang
Ozonized sunflower oil has been found to have a valuable antimicrobial activity against bacteria, viruses, and fungi. However, delayed cutaneous wound healing, severe adverse skin reactions such as pain, burns, irritation, and unsatisfactory storage stability have limited its clinical use as it is known that the performance of ozonized sunflower oil is reflected by core indicators such as iodine value (IV), peroxide value (PV), and acid value (AV). Aiming to improve the above characteristics, ozone oxidation conditions such as the oil water content of raw materials, stirring speed, and ozonized time were successfully optimized, and the optimized conditions were 5%, 300 rpm, and 6 h, respectively. Additionally, the UHPLC-Q-Exactive Orbitrap MS was used to identify the compounds of sunflower oil and ozonation sunflower oil, and 10 fatty acids were successfully identified. The results clearly indicated that the ozonized sunflower oil prepared under optimized ozonation conditions achieved a high degree of ozonation (II) and a satisfactory PV/AV ratio. These optimized conditions further proved to be valuable in improving not only the storage stability of ozonized sunflower oil for up to six months but also in ensuring its remarkable antimicrobial effects on Staphylococcus aureus and Candida albicans, with a PV of 165.75 mmol/kg achieving a 100% antibacterial efficacy.
研究领域:
微生物学
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药物化学
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生物医学工程
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皮肤病学
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天然产物研究
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2022
·
IF 3.571
Jing Li,Xue Li,Xiaolei Liu,Xin Wang,Jie Li,Kexin Lin,Shuxin Sun,Hao Yue,Yulin Dai
Acute exacerbation of pediatric asthma (AEPA) has always been one of the most common reasons for children to visit the emergency department, whereas unified diagnostic criteria in the clinic are lacking. The purpose of this study was to determine potential biomarkers, and provide a basis for predictive and diagnostics AEPA. Urine samples were collected from 40 pediatric patients, including 19 patients with AEPA (PA) and 21 healthy controls (HCs). The samples were analyzed by high-performance liquid chromatography-quadrupole orbitrap mass spectrometry (HPLC-Q-Orbitrap-MS), and the data were statistically analyzed by principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA) and orthogonal partial least squares discriminant analysis (OPLS-DA). Differential metabolites were selected by VIP (variable importance for the projection) > 1, and a p value ≤ 0.05 was used as the standard. The corresponding metabolic pathways of differential metabolites were subjected to analysis by the KEGG database, and further analysis and characterization of differential metabolites were conducted through the HMDB database. A total of 26 potential biomarkers were selected, of which 17 were found to be associated with respiratory diseases . Nine metabolites with obvious fluctuations in patients with AEPA, such as 13- L -hydroperoxylinoleic acid, gentisate aldehyde, L-3-phenyllactic acid, hydrocinnamic acid , and gentisic acid, could be used as potential biomarkers to further explore the prediction and diagnosis of AEPA for the first time. The contents of 3 potential biomarkers showed a positive correlation. Abnormalities in seven metabolic pathways, such as phenylalanine metabolism, tyrosine metabolism and beta-alanine metabolism, are also related to AEPA. This study further confirmed the reliability of this method to detect differences in urine metabolites of patients with AEPA. By monitoring the content of these 26 potential biomarkers and their related metabolic pathways, it provides a basis for further effective prediction and diagnosis of AEPA to avoid further development of this disease.
研究领域:
医学
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代谢组学
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儿科
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呼吸系统疾病
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DOI
PubMed
高影响因子
Foods
·
2022
·Vol. 11
·期 24
·3997
·
IF 5.561
Youyou Yang,Jing Li,Jiangtao Xing,Weihai Xing,Chaohua Tang,Zhenghua Rao,Junmin Zhang
Volatile compounds play vital roles in food sensory attributes and food quality. An analysis of volatile compounds could illustrate the sensory attributes at the microscale level. Here, untargeted profiling approaches for volatiles in five most-consumed meat species were established using headspace SPME-GC/high resolution Orbitrap MS. An extended high-resolution database of meat volatile compounds was established to enhance the qualification accuracy. Using sulfur-containing compounds, aldehydes, and ketones as the research model, the parameters including fiber coating types, extraction temperature, extraction time, and desorbing time were optimized. Principle component analysis, volcano analysis and partial least squares discriminant analysis were applied to run the classification and the selection of discriminant markers between meat varieties, respectively. Different varieties could be largely distinguished according to the volatiles’ profiles. 1-Octen-3-ol, 1-octen-3-one, 2-pentyl furan and some other furans degraded from n-6 fatty acids would contribute to distinguishing duck meat from other categories, while methyl esters mainly from oleic acid as well as dimethyl sulfoxide and carbon disulfide possibly produced from the sulfur-containing amino acids contributed to the discrimination of beef. Therefore, volatiles’ profiling not only could interpret the aroma style in meat but also could be another promising method for meat differentiation and authentication.Keywords:differentiation;GC-HRMS;SPME;statistical analysis;untargeted profiling;volatiles
研究领域:
食品科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2020
·
IF 4.972
Dandan Qin,Qiushuang Wang,Hongjian Li,Xiaohui Jiang,Kaixing Fang,Qing Wang,Bo Li,Chendong Pan,Hualing Wu
Camellia kucha (Chang et Wang) Chang is a special tea in China, which is extremely bitter but beneficial for human health. However, there are no systematic studies on Kucha metabolites, especially those associated with bitterness. In this study, a non-targeted metabolomics approach based on UHPLC-LTQ-Orbitrap-MS was applied to comprehensively profile the characteristic metabolites of two Kucha cultivars by comparison with three common tea cultivars. A total of 90 differential metabolites were identified. Among them, eight key metabolites (theacrine, 2,4-dimethyl-1H-indole, EGCG, dihydrokaempferol, panasenoside, 3-cresotinic acid, 3-methylglutaconic acid, and L -histidine) were more abundant in Kucha than in the controls, most of which were positively correlated with bitterness. Furthermore, quantitative analysis of some important catechins and alkaloids by HPLC implied absolutely higher concentrations of EGCG and theacrine in Kucha, which was similar to the metabolomics results. These results will be contribute to future research on the bitter and nutritional properties of Kucha.
研究领域:
植物科学
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代谢组学
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食品科学
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化学计量学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Lei He,Qian Hu,Liyang Wei,Xuliyang Ge,Ning Yu,Ying Chen
An integrated metabolomics approach based on UPLC-QTOF-MS and HS-SPME-GC-orbitrap-MS was performed to investigate the dynamic changes of metabolite profiling in chickpeas, red speckled kidney beans, and mung beans during soaking. There were 23, 23, 16 non-volatile metabolites, and 18, 21, 22 volatile metabolites were identified as differential metabolites in chickpeas, red speckled kidney beans, and mung beans during soaking, respectively. These metabolites mainly included flavonoids, lysophosphatidylcholines (LPCs), lysophosphatidylethanolamines (LPEs), fatty acids, alcohols, aldehydes, and esters. The key time points responsible for the significant changes in metabolites and quality of the three pulses were 4, 8, and 24 h of soaking. Results revealed that the variations of some metabolites could attribute to oxidation and hydrolysis reactions. These results contribute to a better understanding of how soaking affects pulses quality, and provide useful information for determining soaking time according to nutritional and sensory requirements of their final products or dishes.
研究领域:
食品科学
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代谢组学
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植物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）