FOOD CHEMISTRY
·
2021
·
IF 7.514
Chen He,Jun Cao,Yuyan Bao,Zexin Sun,Zhongyuan Liu,Chuan Li
A lipidomic evaluation was performed on the tilapia muscle, head and viscera, including studying the composition, distribution and stereospecific characteristics of fatty acids and lipid species. The head and viscera lipids were significantly richer than the muscle lipids. Triacylglycerols were the predominant fraction (over 80% of total lipid in the muscle and head). Additionally, polyunsaturated fatty acids had higher percentages in phospholipids (30.35–52.05% of total fatty acids) than in triacylglycerols (18.11–25.15%). The C52:2 and C52:3 were the most abundant triacylglycerols, which indicates the potential application in infant food. Moreover, 622, 530 and 513 lipids were identified using ultraperformance liquid chromatography-quadrupole time-of-flight-mass spectrometry in the muscle, head and viscera, respectively. The three tilapia parts were distinguished using multivariate analysis. Five fatty acids and 33 lipid species were considered as the potential biomarkers. This comprehensive analysis will help to evaluate the lipid nutritional values and facilitate exploitation in tilapia consumption and processing.
研究领域:
营养学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Acta Pharmaceutica Sinica B
·
2020
·
IF 7.097
Sifan Luo,Linbo Guo,Caimin Sheng,Yumei Zhao,Ling Chen,Chufang Li,Zhengjin Jiang,Haiyan Tian
Neuraminidase inhibitors (NAIs) are the mainstay antiviral drugs against influenza infection. In this study, a ligand fishing protocol was developed to screen NAIs using neuraminidase immobilized magnetic beads (NA-MB). After verifying the feasibility of NA-MB with an artificial mixture including NA inhibitors and non-inhibitors, the developed ligand fishing protocol was applied to screen NAIs from the crude extracts of Duchesnea indica Andr. Twenty-four NA binding compounds were identified from the normal butanol ( n -BuOH) extract of D. indica as potential NAIs by high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC–Q-TOF-MS) assisted with Compound Structure Identification (CSI):FingerID, including 12 ellagitannins, 4 brevifolin derivatives, 3 ellagic acid derivatives, and 4 flavonoids. Among them, 9 compounds were isolated and tested for in vitro NA inhibitory activities against NA from Clostridium perfringens , and from oseltamivir sensitive and resistant influenza A virus strains. The results indicate that compound B23 has the NA inhibitory activities in both the oseltamivir sensitive and resistant viral NA, with half maximal inhibitory concentration (IC 50 ) values of 197.9 and 125.4 μmol/L, respectively. Moreover, B23 can obviously reduce the replication of oseltamivir sensitive and resistant viruses in Madin–Darby canine kidney (MDCK) cells at the concentrations of 40 and 200 μmol/L.
研究领域:
药理学
·
病毒学
·
分析化学
·
植物科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2020
·
IF 4.006
Shanshan He,Xin Liu,Yanling Wang,Jianhua Xie,Heng Gao,Xiujiang Li,Zhibing Huang
Monascus mold produces useful bioactive compounds such as Monascus pigments, monacolin K, and ergosterol . In this study, metabolomics analysis was used to investigate the metabolic profile changes in Monascus aurantiacus Li AS3.4384 (MALA) induced by genistein at different fermentation times using UHPLC-Q-TOF-MS/MS. The addition of genistein was found to not only reduce citrinin but also suppress significant differential metabolites. A total of 21 significant differential metabolites were involved in the most significant metabolic pathways (impact >0.1). These metabolites affected the aspartic acid , glutamic acid pathway, tricarboxylic acid (TCA) cycle, pyruvate synthesis pathway, and lysine degradation pathway. Thus, the addition of genistein may change the precursor for citrinin synthesis of Monascus . These findings provide significant insight into the Monascus metabolic pathways affected by genistein and will help to improve the quality control and safety of Monascus in food and supplements.
研究领域:
食品科学
·
微生物学
·
代谢组学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2020
·
IF 3.209
Baolin Wang,Yimeng Lu,Rong Wang,Shumeng Liu,Xiaolong Hu,Hao Wang
Amentoflavone, a kind of biflavonoid existing in several medicinal plants such as Selaginella moellendorfi and Gingko biloba , possesses anti-inflammatory, antioxidant, anti-virus, anti-tumor activities. In the present study, a new reliable and sensitive UHPLC-ESI-MS/MS method was developed to determine the permeability of amentoflavone under different conditions, and its metabolites in Caco-2 cells were identified by means of UHPLC-Q-TOF-MS/MS method. The results showed that amentoflavone could be considered as a compound with moderate intestinal absorption in Caco-2 cell model and its absorption characteristics might be involved in paracellular passive penetration and clathrin-mediated endocytosis with no participation of efflux transporters. Eight metabolites of amentoflavone were identified in Caco-2 cell model, indicating that the main metabolic pathways were oxidation, reduction, methylation and glucuronide conjugation. This study can provide valuable evidence for an in-depth understanding of absorption mechanism and transformation of amentoflavone in the intestine.
研究领域:
药理学
·
分析化学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2019
·
IF 2.983
Lulu He,Jianqin Qian,Peixi Zhu,Weifeng Yang,Yuanbin She
A simple and sensitive method was developed for separation and characterization of seventeen impurities from commercial latamoxef sodium for injection by liquid chromatography combined with electrospray ionization and QTOF mass spectrometer (LC-ESI-QTOF MS). The chromatographic separation was performed on a Boston Green ODS-AQ C18 column (250 mm × 4.6 mm, 5 μm) under gradient mode using binary mobile phase: (A) ammonium acetate (10 mM)-methanol (99:1, v/v) and (B) ammonium acetate (10 mM)-methanol (70:30, v/v). Based on tandem multistage MS and high resolution MS data, the molecular formulas and structures of unknown impurities were inferred. A plausible formation mechanism of impurities was also proposed. In addition, the fragmentation regularity of degraded impurities in positive-ion mode was summarized.
研究领域:
分析化学
·
药物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2022
·
IF 5.195
Didi Ma,Lijun Wang,Yibao Jin,Lifei Gu,Guo Yin,Jue Wang,Xie-an Yu,Houshuang Huang,Zhen Zhang,Bing Wang,Yi Lu,Kaishun Bi,Ping Wang,Tiejie Wang
Ethnopharmacological relevance Rhodiola crenulata (Hook.f. & Thomson) H.Ohba has a long history of clinical application for the prevention and treatment of acute mountain sickness (AMS) in traditional Chinese medicine . However, gaps in knowledge still exist in understanding the underlying mechanisms of Rhodiola crenulata against AMS. Aims To address this problem, a comprehensive method was established by combining UHPLC-Q-TOF-MS/MS analysis and network pharmacology . Materials and methods The ingredients of Rhodiola crenulata were comprehensively analyzed using UHPLC-Q-TOF-MS/MS method. On this basis, a network pharmacology method incorporated target prediction, protein-protein interaction network, gene enrichment analysis and components-targets-pathways network was performed. Finally, the possible mechanisms were verified through molecular docking, in vitro and in vivo experiments. Results A total of 106 constituents of Rhodiola crenulata were charactered via UHPLC-Q-TOF-MS/MS. The 98 potentially active compounds out of 106 were screened and corresponded to 53 anti-AMS targets. Gene enrichment analysis revealed that hypoxia and inflammation related genes may be the central factors for Rhodiola crenulata to modulate AMS. Molecular docking revealed that TNF, VEGFA and HIF-1α had high affinities to Rhodiola crenulata compounds. Subsequently, Rhodiola crenulata extract was indicated to inhibit the protein expression level of TNF in hypoxia induced H9c2 cells. Lastly, Rhodiola crenulata extract was further verified to ameliorate heart injury and decreased the heart levels of TNF, VEGFA and HIF-1α in acute hypoxia-induced rats. Conclusions This study used UHPLC-Q-TOF-MS/MS analysis and a network pharmacology to provide an important reference for revealing the potential mechanism of Rhodiola crenulata in the prevention and treatment of AMS.
研究领域:
药理学
·
分析化学
·
分子生物学
·
中医药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Peiyi Jin,Linzhou Chen,Jinjian Zhong,Tiefeng Yuan,Lin Gan,Jilong Huang,Liping Wang,Huajun Fan,Chen Lin
Dioscoreae nipponica Makino ( D. nipponica ) as the rhizome of dioscoreaceae rich in steroidal saponins, has been reported to have the hypolipidemic effects etc. However, it is still unclear which exact active components are primary responsible for the beneficial effects. This study was conducted to fish out the lipase inhibitors from D. nipponica , and evaluate the inhibitory activity on porcine pancreatic lipase (PPL) through in vitro kinetic assay using p -nitrophenyl palmitate as substrate. Accordingly, the ethanolic extract was subjected to D101 macroporous resin purification for spectrophotometric screening, high performance liquid chromatography (HPLC) separation and structural characterization by ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry. Through orlistat validation, the PPL inhibitory activity and IC 50 value of the extract were respectively 68.34 ± 1.47 % and 107.05 μg/mL under the optimized inhibition conditions. From 6 steroidal saponins identified, the inhibitory components named the protodioscin, protogracillin, dioscin and gracillin were fished out by grouping separation and HPLC analysis. Furthermore, dioscin and gracillin with the parent structure of diogenin were confirmed as the major inhibitors by virtue of stability tests based on transformation of protodioscin and protogracillin. Finally, the inhibitory mechanism of the major inhibitors toward PPL was further clarified by kinetic analysis and molecular docking analysis. The proposed method not only revealed the PPL inhibitory components in D. nipponica , but also provided an effective approach to hierarchical screening of PPL inhibitors from natural plants.
研究领域:
药理学
·
生物化学
·
分析化学
·
天然产物
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Qu Zhang,Chao Xue,Gary Owens,Zuliang Chen
The widespread presence of 17β-estradiol (E2) in the environment is an emerging problem because it poses a potential threat to human health and aquatic organisms. In this study, a strain of E2 degrading bacteria was isolated from activated sludge . 16s rRNA analysis combined with physiological and biochemical detection confirmed that the bacterium was Ochrobactrum sp. strain FJ1. At an initial E2 concentration of 15 mg L −1 , strain FJ1 degraded 98 ± 1% of E2 after 10 days. Furthermore, when methanol was added as an additional carbon source, the biomass of strain FJ1 increased by 35 ± 1%, and E2 degradation efficiency was slightly inhibited. Compared with E2 alone when glucose, sodium acetate, and methanol were added as additional carbon sources, biomass decreased by 20 ± 1, 13 ± 1 and 35 ± 1%, respectively. Analysis of the degradation products of E2 by LC/Q-TOF-MS confirmed that the major degradation products of E2 were estrone (E1) and 4,16-OH-E1, which was further degraded by strain FJ1 to several other unknown compounds. Based on SEM and FTIR analysis, the morphology of the bacteria became thicker and the thickness of the cell walls decreased under initial E2 stress, and thereafter E2 was transported into the bacteria primarily via several proteins on the cell surface. Considering the ability and efficiency of Ochrobactrum sp. strain FJ1 to degrade high E2 content, the strain could provide a new bioremediation technology for the effective biodegradation of E2. Finally, a potential bioremediation pathway of E2 by Ochrobactrum sp. strain FJ1 was proposed.
研究领域:
环境科学
·
微生物学
·
生物技术
✓ 已验证
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Mengwen Lv,Yong Yang,Patrick Choisy,Tao Xu,Karl Pays,Ling Zhang,Jin Zhu,Qianyu Wang,Shanshan Li,Liangsheng Wang
Genus Paeonia is an important ornamental and medicinal crop . The flowers of Paeonia are rich in flavonoids , and flavonoids have excellent antioxidant and anti-inflammatory activities, which have the potential to slow down skin aging. In this study, flavonoids from whole flowers of six popular Paeonia cultivars were extracted using three different solvents. The composition and content of peony flowers flavonoids extracted with three solvents were determined by high performance liquid chromatography quadrupole time-of-flight mass spectrometry / mass spectrometry (HPLC-Q-TOF-MS/MS) and HPLC-diode array detection (DAD). A total of 26 flavonoids were isolated and identified, and 60 % ethanol showed the highest extraction efficiency. Not only flavonoids composition but also the content was significantly different in different peony flowers, among which ‘Hei Tian E’ had the most abundant composition (17 flavonoids) and the highest total content of flavonoids (57.75 mg/g DW by using 60 % ethanol). After that, the anti-skin photoaging effects of the 60 % ethanol extracts of the six Paeonia cultivars flowers were evaluated by UVR-Fulkutis and UVA-Fibroblasts photoaging models. Under exposure to UV radiation, some Paeonia flowers’ extracts can prevent the decrease of skin surface thickness and reduce the loss of Collagen IV and VII. In addition, the production and accumulation of ROS, MMP-1 and MMP-3 in fibroblasts were inhibited, indicating the attenuation of skin photoaging by the extracts. Among the six samples tested, ‘Hei Tian E’ whole flower extract (BH-HT) had the best comprehensive effect. Finally, the correlations between components and anti-photoaging efficacy were analyzed. We speculate that the anti-photoaging effect was significantly related to its richness in quercetin 3- O -di-glucoside, quercetin 3- O -glucoside, isorhamnetin 3- O -galloyl arabinoside, cyanidin 3,5-di- O -glucoside, cyanidin 3- O -glucoside, and peonidin 3- O -glucoside. In general, the results show that Paeonia flowers have potential for development of anti-photoaging herbal essence products.
研究领域:
药理学
·
植物学
·
化妆品科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2025
·
IF 8
Hui Zhang,Mengjia Xu,Ming Yang,Jun Ding,Mingquan Guo
The seeds of Cassia obtusifolia L. (Cassia seed) have long been utilized as an edible traditional Chinese medicinal herb and tea with various health benefits, including improving obesity and protecting eyesight. In this work, we developed a rapid screening method based on pancreatic lipase (PL)-functionalized magnetic composite nanoparticles coupled with ultra-performance liquid chromatography-quadrupole-time of flight mass spectrometry (UPLC-QTOF-MS/MS) and molecular networking analysis. This method utilized the advantages of polydopamine (PDA) and metal-organic frameworks (MOFs) functionalized magnetic core-shell structures (Fe 3 O 4 @PDA@MOFs MNPs), significantly enhancing the immobilization efficiency and performance of PL. The enzyme loading capacity was increased by 1.5-fold, and notable improvements in reusability and storage stability were also observed. By using this immobilized enzyme model in combination with UPLC-QTOF-MS/MS, 22 potential PL inhibitors were selectively screened and identified from the seeds of Cassia obtusifolia L. Molecular network analysis was innovatively introduced to improve the efficiency of compound identification by summarizing the similarity of mass spectral fragments. The inhibitory activities of three representative ligands of Cassiaside B, Biochanin A 7-glucoside and Aurantio-obtusin were further investigated. Molecular docking analysis revealed that the amino acid residue ASP249 in lipase contributes a significant role in the binding of active ligands to lipase. Overall, this proposed screening strategy, characterized by its specificity in enzyme binding and the convenience of functionalized magnetic separation, presents promising prospects for rapid and high-throughput screening of active components and drug candidates from natural resources.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2025
·
IF 8
Huan-ya Yang,Lin Yang,Yu-lu Wang,Yun-shu Hu,Yun Li,Hua Qu,Wen-long Wei,Hui-yan Yang,Qi-rui Bi,Jian-qing Zhang,De-an Guo
Ginger is extensively utilized in culinary and traditional medicine worldwide. This study presents a comparative analysis on ginger-related varieties from different species, growth stages, processing methods and geographical origins using headspace solid-phase microextraction gas chromatography quadrupole time-of-flight mass spectrometry (HS-SPME-GC-Q-TOF MS) and ultra-high performance liquid chromatography linear-ion-trap-quadrupole orbitrap MS (UHPLC-LTQ-Orbitrap MS). A total of 120 volatiles and 377 non-volatiles were annotated. Metabolomics revealed 44 differential components to discriminate six Zingiberaceae species. Among them, ginger contained the highest levels of chemical components. Additionally, 44 components were found to completely distinguish two growth stages and four processing forms of ginger. As ginger matures, changes in volatiles become more pronounced, while significant differences in non-volatiles were observed across processing stages. Moreover, ginger from three regions was compared, and ginger from Western was found to have more abundant non-volatiles and a higher qualification rate (Yunnan 100 % vs. Fujian 33 %, Henan 15 %). This study maps the chemical profile of ginger and related varieties, providing insights for development of novel products and informing decisions in cultivation, production, and purchasing.
研究领域:
植物化学
·
食品科学
·
药用植物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ULTRASONICS SONOCHEMISTRY
·
2025
·
IF 9.7
Ziyu Lv,Jing Ma,Chi Wei,Jiaqi Wang,Dan Wang,Xinxin Cheng,Guoliang Chen,Luis A.J. Mur,Yanfeng Wang,Duo Cao
Bitter orange flowers (BOF), a renowned medicinal and edible botanical resource, are rich in phenolic compounds with significant potential for health and industrial applications. However, efficient extraction and purification techniques for recovering bioactive phenolics remain underexplored. To address this gap, this study aimed to develop an eco-friendly integrated strategy combining natural deep eutectic solvent-ultrasound synergistic extraction (NADES-USE) with adsorptive purification for efficient recovery of total phenolics from BOF (BOF-TP). First, choline chloride-ethylene glycol (ChCl-EG) was determined to be the optimal extraction solvent from 12 synthesized NADESs and 3 common solvents. Employing Box-Behnken design (BBD), the optimized parameters for NADES-USE (38 % aqueous ChCl-EG, 18 mL/g, 345 W, 43 min, and 55 °C) resulted in a BOF-TP yield of 104.58 ± 0.34 mg/g, which was 1.30 to 2.16 times higher than those achieved with conventional solvents. Then, AB-8 resin demonstrated optimal adsorption–desorption performance for BOF-TP, with adsorption behavior strongly conforming to Langmuir isotherm and pseudo-second-order kinetic models. Thermodynamic analysis confirmed a spontaneous, exothermic physisorption process with decreasing entropy. The breakthrough curves and gradient elution curves were utilized to establish a chromatographic purification process for crude BOF-TP extracts, achieving a purity of 75.62 ± 0.95 %. Finally, a validated UPLC-Q/TOF-MS/MS method facilitated comprehensive chemical characterization and simultaneous quantification of seven bioactive compounds, serving as a basis for the quality control of purified BOF-TP extracts. In conclusion, this work demonstrates that the combination of NADES-USE and adsorptive purification offers significant potential for producing highly purified BOF-TP extract for further use in food and pharmaceutical applications.
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）