JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2024
·
IF 4
Shuai Zhuang,Huihui Ming,Wenjie Yu,Liping Luo
Royal jelly (RJ) is a highly perishable food during storage. However, the quality of RJ is hard to evaluate due to its complex and variable compositions. Nanoliter electrospray ionization mass spectrometry (nano-ESI-MS) is an emerging direct mass spectrometry method suitable for rapid analysis of complex food components and food quality. In this study, we investigated the freshness and metabolite changes of RJ stored at 4 °C and 25 °C using nano-ESI-MS and verified the results with UPLC-Q/TOF-MS. The nano-ESI-MS identified 20 compounds and quantified 9 metabolites with high stability and reproducibility. Multivariate analysis of the nano-ESI-MS data distinguished RJ of different freshness and suggested 45–60 and 7 days as the freshness threshold of RJ stored at 4 °C and 25 °C, respectively. The multivariate analysis of UPLC-Q/TOF-MS data output similar results to that of nano-ESI-MS. The relative abundance changes of metabolites identified by UPLC-Q/TOF-MS were approximately consistent with the quantification results of nano-ESI-MS, indicating the reliability of nano-ESI-MS in monitoring RJ freshness. This study proved the potential of nano-ESI-MS as a rapid method for monitoring RJ freshness and thus promoted the quality control of RJ during production.
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2013
·
IF 2.947
Yan Yan,Cheng-Zhi Chai,Da-Wei Wang,Xin-Yi Yue,Dan-Ni Zhu,Bo-Yang Yu
Ge-Gen Decoction (GGD) is a classical formula of traditional Chinese medicine. It is generally used for treating common cold, fever and influenza in China and South East Asia. In this study, a systematic method was established for the qualitative and quantitative analysis of the major constituents in GGD. For qualitative analysis, a method of liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (Q-TOF MS/MS) was developed for identification of multi-constituents. Based on the UV spectra, retention time and MS spectra, sixty compounds in GGD extract were identified or tentatively characterized by comparing with reference substances or literatures. According to the qualitative results, a new quantitative analysis method of GGD was established by HPLC-DAD. Fourteen representative compounds unequivocally identified were chosen as marker components which were derived from five herbs in GGD excluding Zingiberis Rhizoma Recens and Jujubae Fructus. The analytical method was validated through intra- and inter-day precision, repeatability and stability, and the R.S.D. was less than 3.18%, 4.48%, 3.36% and 3.54%, respectively. The LODs and the LOQs for the analytes were less than 1.06 and 3.12 μg mL −1 , respectively. The overall recoveries ranged from 94.8% to 105.6%, with the R.S.D. ranging from 0.68% to 3.23%. Then the new method was applied to determine twelve batches of GGD commercial products of three dosage forms. The results indicated that the new approach was applicable in the routine analysis and quality control of GGD products. The study might provide a basis for quality control of GGD, and further study of GGD in vivo .
研究领域:
中药学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY & BIODIVERSITY
·
2023
·Vol. 20
·期 6
·e202300204
·
IF 2.9
Zhike Liang,Zhixia Chen,Xianmei Xue,Cuimin He,Xujiang Yuan
Abrus mollis (MJGC) has been used as a substitute herb for Abrus cantoniensis (JGC) in China. However, an in-depth comparison on their key metabolites and the mechanism of anti-inflammation between these two is not available. In this report, high pressure liquid chromatography equipped with mass spectrometry was applied to capture their flavonoid profiles; transcriptomics was adopted to analyze their anti-inflammatory mechanisms. The results showed that the main flavonoids in MJGC were vicenin-2, schaftoside and isoschaftoside, while those in JGC were vicenin-1 isomer and schaftoside isomer. The anti-inflammatory activity of JGC was slightly stronger than that of MJGC. The number of differential expression genes regulated by JGC was significantly higher than MJGC. JGC regulated 151 (42 up and 109 down) of inflammation related genes, while MJGC regulated 58 (8 up and 50 down) of inflammation related genes. The results of this study provided scientific evidence and guidance for the substitution of MJGC and JGC.
研究领域:
药用植物学
·
药学
·
转录组学
·
植物化学
✓ 已验证
DOI
PubMed
高影响因子
Evidence-based Complementary and Alternative Medicine
·
2021
·Vol. 2021
·期 1
·2894306
·
IF 2.63
Hong Chang,Shujie Lv,Tengteng Yuan,Huan Wu,Lei Wang,Ran Sang,Caiyun Zhang,Weidong Chen
Gushuling (GSL), a well-known hospital preparation composed of traditional Chinese medicine (TCM), has been widely used in the clinical treatment of osteoporosis (OP) for decades due to its remarkable therapeutic effect. However, the chemical constituents of GSL are still unclear so far, which limits the in-depth study of its pharmacodynamic material basis and further restricts its clinical application. In this study, we developed a strategy for qualitative analysis of the chemical constituents of GSL in vitro and in vivo . Based on the results of ultra-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS) and the UNIFI informatics platform, the chemical constituents of GSL can be determined quickly and effectively. By comparing the retention time, accurate mass, and fragmentation spectrum of the compounds in GSL, a total of 93 compounds were identified or preliminarily identified, including flavonoids, terpenoids, phenylpropanoids, steroids, etc. Among them, nine compounds have been confirmed by standard substances, namely epimedin A, epimedin B, epimedin C, icariin, ecdysterone, calycosin, calycosin-7-glucoside, ononin, and ginsenoside Ro. Fragment patterns and characteristic ions of representative compounds with different chemical structure types were analyzed. At the same time, 20 prototype compounds and 42 metabolites were detected in rat serum. Oxidation, hydration, reduction, dehydration, glutathione S-conjugation, and acetylcysteine conjugation were the main transformation reactions of GSL in rat serum. In this research, the rapid method to characterize the in vitro and in vivo chemical constituents of GSL can not only be used for the standardization and quality control of GSL but also be helpful for further research on its pharmacodynamic material basis.
研究领域:
中药学
·
分析化学
·
药理学
✓ 已验证
DOI
高影响因子
MOLECULES
·
2022
·Vol. 27
·期 23
·8315
·
IF 4.927
Qinglei Wang,Rong Wang,Cheng Zheng,Linlin Zhang,Hong Meng,Yi Zhang,Linke Ma,Bilian Chen,Juanjuan Wang
Bombyx batryticatus(BB) is an anticonvulsant animal medicine in traditional Chinese medicine (TCM) and acts on the central nervous system. This research aimed to study the anticonvulsant effects of different polarity fractions of extracts from BB and to explore the components conferring anticonvulsant activity. Materials and methods: Crude extracts of BB at 20 g/kg were divided into different polarity fractions (petroleum ether, chloroform, ethyl acetate, water) and were administered to groups of mice before injecting pentylenetetrazol (PTZ) to induce convulsions. The animals were placed in chambers, and their behaviors were recorded for 30 min following the injection. Latency time, percent of protection, convulsion, convulsion rate, and convulsion score were determined for these mice. The compounds present in the different fractions were analyzed, and those from the fraction that conferred anticonvulsant activity were identified by high-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UHPLC-Q-TOF MS) and molecular networking (MN). The chloroform extract fractions (B-C) clearly increased the seizure latency time and protection percentage and decreased the convulsion percentage compared to the control group. The anticonvulsant effect of other extract fractions was not significant. Our study shows that the chloroform extract fractions (B-C) of BB have a significant anticonvulsant effect. We also identified 17 compounds including lumichrome, pheophorbide A, and episyringaresinol 4′-O-beta-d-glucopyranose that were found for the first time. The results of this study may lay the groundwork for studying compounds derived fromBombyx batryticatusand their anticonvulsant effect.Keywords:Bombyx batryticatus;anticonvulsant activity;different polar fractions;UHPLC-Q-TOF-MS/MS;molecular networking
研究领域:
药理学
·
中药学
·
神经科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 4
·1947
·
IF 4.6
Zili Guo,Jiangxuan Lai,Yiwen Wu,Sheng Fang,Xianrui Liang
The changes in active components in mulberry leaves harvested in different months and their antioxidant activities were investigated. Ultra-high-performance liquid chromatography–tandem quadrupole time-of-flight mass spectrometry (UPLC–Q-TOF-MS) with multivariate statistical tools was used to investigate the chemical constituents in the extracts of mulberry leaves. The results indicated that mulberry leaves were rich in phenolic acids, flavonoids, organic acids, and fatty acid derivatives. In addition, 25 different compounds were identified in the different batches of mulberry leaves. The 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity was measured to evaluate the in vitro antioxidant activities of mulberry leaves. Among the four batches, batch A, harvested in December, exhibited the strongest DPPH radical-scavenging activity, while batch B, harvested in March, showed the weakest activity. This was related to the total phenolic content in the mulberry leaves of each batch. The optimal harvest time of mulberry leaves greatly influences the bioactivity and bioavailability of the plant.Keywords:mulberry leaf;chemical constituent;antioxidant;UPLC–Q-TOF-MS;free radical scavenging activity
研究领域:
生药学
·
分析化学
·
植物科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2018
·
IF 4.946
Yu-Ying Zhang,Lei Qin,Yu-Xi Liu,Da-Yong Zhou,Xian-Bing Xu,Ming Du,Bei-Wei Zhu,Megan Thornton
Abalone has been farmed commercially for the last few decades, and the breeding and economic value of abalone have gained extensive attention. In this study, the lipid profile of the foot muscles, viscera, and gonads of male and female Japanese abalone Haliotis discus hannai Ino was explored using ultra performance liquid chromatography-electrospray ionization-quadrupole time-of-flight mass spectrometry (UPLC-ESI-Q-TOF-MS), to discuss the effect of lipid composition on its nutritional value. Thirty-four species from ten lipid classes including phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidic acid, lysophosphatidic acid, triacylglycerol, steroids, terpenoids and fatty acids were annotated by MS-DIAL to obtain all fragment ions for precursors. Glycerophospholipids (GPLs) enriched in unsaturated fatty acids were the major components, which accounted for 52–57% of total lipids. Considering the high-level of GPLs, and their importance in maintaining the integrity and functionality of cell membranes, further utilization of inexpensive tissues, such as viscera and gonads is warranted.
研究领域:
水产养殖学
·
营养学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2015
·
IF 2.729
Xia Wu,Yan Li,Qiu Wang,Weimin Li,Yifan Feng
A rapid and reliable ultra-performance liquid chromatography coupled with electrospray ionization/quadrupole-time-of-flight mass spectrometry (U-HPLC/Q-TOF-MS) has been firstly used to analyze the changes of plasma phospholipids, in type 2 diabetes mellitus (T2DM) mice after administration of berberine and pomegranate seed oil (PSO). The separation of plasma phospholipids was carried out on an Acquity U-HPLC BEH C18 column (2.1 mm × 50 mm, 1.7 μm, Waters) by linear gradient elution using a mobile phase consisting of 10 mM ammonium formate in water and acetonitrile: isopropanol (1:1, v/v) mixed solution added by 0.25% water and 10 mM ammonium formate. The method demonstrated a good precision and reproducibility. Linear regression analysis showed a good linearity. And potential biomarkers were discovered based on their mass spectra and chemometrics methods. The results demonstrated that the proposed U-HPLC/Q-TOF-MS method was successfully applied to analyze the dynamic changes of phospholipids components in plasma of T2DM mice after drug treatment and could provide a useful data base for meriting further study in humans and investigating pharmacological actions of drugs.
研究领域:
药理学
·
代谢组学
·
分析化学
✓ 已验证
DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2021
·
IF 3.935
Yujiao Zhao,Shanshan Chu,Shuangying Gui,Yuejian Qin,Rui Xu,Tingyu Shan,Huasheng Peng
Heshouwu , derived from root tubers of Fallopia multiflor a (Thunb.) Harald., is a well-known herb used for millennia in traditional Chinese medicine. However, different forms of root tubers of Heshouwu have occurred in current Chinese herbal market and used in clinic, although it is still unknown whether their quality is consistent. In the present study, a mass spectrometry imaging and laser microdissection combined with UPLC-Q/TOF-MS were therefore used for the metabolite profiling on the whole and different parts of root tubers of F. multiflora and F. multiflora var. angulata . Our results suggested that the character of “woody heart” root tubers of F. multiflora was similar to that of F. multiflora var. angulata , but the latter had more phloem fibers and larger diameter vessel in the normal vascular bundle. Moreover, 140 compounds including stilbenes, anthraquinones, phenolic acids, naphthalenes, and other compounds were identified or putatively characterized from F. multiflora and F. multiflora var. angulata . Both unsupervised principal component analysis (PCA) and supervised Orthogonal Partial Least Squares Discrimination Analysis (OPLS-DA) multivariate statistics allowed discriminating F. multiflora and F. multiflora var. angulata . And a total of 32 potential markers were identified. The tissue-specific study indicated that the compounds in the phelloderm of F. multiflora and F. multiflora var. angulata were the most abundant. This is the first study on metabolite profiling and comparison of root tubers between F. multiflora and F. multiflora var. angulata , which would provide reasonable basis for further quality evaluation and safe medication of F. multiflora .
研究领域:
中药学
·
植物代谢组学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2022
·
IF 3.571
Chao Liu,Ying Luo,Qiaofeng Tao,Liya Hong,Su Zeng
A rapid and highly sensitive method was developed for separation and identification of the related impurities and degradation products in tetracaine hydrochloride by ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS). The chromatographic separation was achieved on an Agilent Infinity Lab Poroshell 120 EC-C18 column (4.6 ×100 mm, 2.7 µm) using gradient elution with mobiles phase of A (10 mM ammonium acetate buffer containing 0.1% formic acid) and B (acetonitrile) at a flow rate of 1.0 mL/min. Forced degradation experiments were also performed under acidic, alkaline, thermal, photolytic, and oxidative stress conditions following ICH guidance. The result revealed that tetracaine hydrochloride is extremely sensitive to oxidation condition and highly sensitive to alkaline/acidic hydrolysis, and susceptible to light condition. In total, five related impurities and seven degradation products were successfully detected in the positive mode of electrospray ionization . The structures of all these impurities were characterized based on the high-resolution MS data and manufacture process, and the fragmentation pathways of tetracaine and these impurities were constructed and discussed. Seven of them have not been reported before, and two of them were specified impurities described in various pharmacopoeias. The fragmentation pathways and plausible mechanisms for the formation of these impurities were proposed.
研究领域:
药学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICO-BIOLOGICAL INTERACTIONS
·
2016
·
IF 2.618
Xia Wu,Jian-Cheng Zhu,Yu Zhang,Wei-Min Li,Xiang-Lu Rong,Yi-Fan Feng
Potential impact of lipid research has been increasingly realized both in disease treatment and prevention. An effective metabolomics approach based on ultra-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS) along with multivariate statistic analysis has been applied for investigating the dynamic change of plasma phospholipids compositions in early type 2 diabetic rats after the treatment of an ancient prescription of Chinese Medicine Huang-Qi-San. The exported UPLC/Q-TOF-MS data of plasma samples were subjected to SIMCA-P and processed by bioMark, mixOmics, Rcomdr packages with R software. A clear score plots of plasma sample groups, including normal control group (NC), model group (MC), positive medicine control group (Flu) and Huang-Qi-San group (HQS), were achieved by principal-components analysis (PCA), partial least-squares discriminant analysis (PLS-DA) and orthogonal partial least-squares discriminant analysis (OPLS-DA). Biomarkers were screened out using student T test, principal component regression (PCR), partial least-squares regression (PLS) and important variable method (variable influence on projection, VIP). Structures of metabolites were identified and metabolic pathways were deduced by correlation coefficient. The relationship between compounds was explained by the correlation coefficient diagram, and the metabolic differences between similar compounds were illustrated. Based on KEGG database, the biological significances of identified biomarkers were described. The correlation coefficient was firstly applied to identify the structure and deduce the metabolic pathways of phospholipids metabolites, and the study provided a new methodological cue for further understanding the molecular mechanisms of metabolites in the process of regulating Huang-Qi-San for treating early type 2 diabetes.
研究领域:
代谢组学
·
中医药学
·
生物信息学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2019
·
IF 2.813
Xi Zhou,Huiqin Wu,Xiaolan Huang,Fang Hang,Huitai Luo
This study established a simple and rapid method for simultaneous determination of short-chain chlorinated paraffins (SCCPs) and medium-chain chlorinated paraffins (MCCPs) in human serum by high performance liquid chromatography coupled with electron spray ionization quadrupole time-of-flight mass spectrometry (HPLC-ESI-Q-TOF/MS). A simple pretreatment procedure of protein precipitation by acetonitrile coupled with liquid-liquid extraction by n-hexane was employed for extraction and purification . The purified samples were separated by a PFP chromatographic column. This method could effectively eliminate the matrix effect by lipids and other matrix substances in serum samples with less time and solvent consuming. 76 congener groups of SCCPs and MCCPs with C 10 -C 17 and Cl 5 -Cl 13 were quantified by their [M-H] − ions. Method detection limit (MDL) were 1.0–8.0 ng mL −1 for ∑SCCPs and ∑MCCPs. Recoveries were 98.4 ± 4.42%, 98.8 ± 3.96% and 90.7 ± 2.79% for SCCPs and 93.1 ± 6.67%, 108 ± 1.21% and 90.8 ± 3.78% for MCCPs at spiking concentrations of 20, 50 and 200 ng·mL −1 , respectively. The relative standard deviations (RSDs) of intra- and inter-day variations were 1.41% and 9.84% for SCCPs, and 4.23% and 6.26% for MCCPs. The suitability of the developed method was demonstrated through the application to analysis of SCCPs and MCCPs in human serum samples.
研究领域:
环境科学
·
分析化学
·
毒理学
✓ 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）