Foods
·
2022
·Vol. 11
·期 7
·1056
·
IF 5.561
Xiaoji Cao,Xupin Lin,Congcong Wu,Minghua Zhang,Mingwei Wang
Lotus seed epicarp, a byproduct of lotus, is commonly discarded directly or burned in the cropland, resulting in waste of resources and environmental pollution. In this work, a green ultrasonic-assisted extraction method with ethyl lactate as the extraction solvent was established to extract alkaloids from lotus seed epicarp. The extraction conditions were optimized by response surface methodology. Under the optimal extraction conditions, the extraction of alkaloids from 1 g lotus seed epicarp was accomplished with only 10 mL of extraction solvent within 15 min. Combined with ultrahigh-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry with information-dependent acquisition mode, a total of 42 alkaloids were annotated in the lotus seed epicarp extracts. Among them, 39 alkaloids were reported in lotus seed epicarp for the first time. According to quantitative analysis, the distributions and trends of alkaloids in the lotus seed epicarp were found to be similar to those of lotus leaves. The five growth stages of lotus seed epicarp could be successfully distinguished based on the ten representative alkaloids. This study demonstrates that ultrasonic-assisted extraction with ethyl lactate as extractant solvent was efficient in the extraction of alkaloids from lotus seed epicarp, which is a potential renewable resource of bioactive ingredients.Keywords:lotus seed epicarp;alkaloids;bio-based solvents;pseudo-targeted profile;UPLC-QTOF MS
研究领域:
药学化学
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分析化学
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环境科学
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DOI
PubMed
高影响因子
Analytical Methods
·
2020
·Vol. 12
·期 37
·4562-4571
·
IF 2.596
Wen Liu,Sha Li,Yang Ke Wu,Xiao Yan,Yi Ming Zhu,Fei Ya Jiang,Yu Jiang,Liang Hong Zou,Tong Tong Wang
Xuebijing (XBJ) is a compound Chinese medicine that contains Paeoniae Radix Rubra, ChuanXiong Rhizoma, Salvia Miltiorrhiza Radix et Rhizoma, Carthami Flos, and Angelicae Sinensis Radix. It is widely used in China to treat sepsis. Previous studies have demonstrated that XBJ can decrease mortality in patients with moderate paraquat poisoning. However, the mechanism by which it exerts this effect is not completely clear. In this study, an ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS/MS)-based metabolomics approach was used to perform a metabolic profiling analysis. Principal component analysis (PCA), random forest (RF), and partial least squares discriminant analysis (PLS-DA) were used to identify metabolites to clarify the mechanism of XBJ's activity. XBJ clearly alleviated lung injury in a Sprague Dawley (SD) rat model of paraquat (PQ) poisoning. Seven metabolites related to four pathways, including those involved in sphingolipid and phospholipid metabolism, amino acid metabolism, unsaturated fatty acid metabolism, and pantothenic acid and CoA biosynthesis, were present at different levels in PQ-poisoned rats treated with XBJ compared with untreated rats. XBJ can ameliorate the effects of PQ poisoning in SD rats. Using a metabolomics approach enabled us to gain new insight into the mechanism underlying this effect.
研究领域:
药理学
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毒理学
·
代谢组学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD BIOCHEMISTRY
·
2017
·Vol. 41
·期 6
·e12402
·
IF 1
Xing Xie,Zong-Cai Tu,Lu Zhang,Yi Zhao,Hui Wang,Zhen-Xing Wang,Nan-Hai Zhang,Bi-Zhen Zhong
This study assessed the phytochemical composition, antioxidant activities, and α-glucosidase inhibition of Anoectochilus roxburghii formula tea (ARFT) residue by comparing with that of ARFT infusion and ARFT extract. ARFT residue extract showed the maximum total phenolics, total flavonoids, and total condensed tannins content, with the values of 146.70 GAE mg/g E, 58.50 QE mg/g E, and 312.08 mg CE/g E, respectively, while ARFT infusion exhibited the lowest values. The strongest ABTS + · scavenging ability and α - glucosidase inhibition were also found in ARFT residue extract, but the best DPPH· scavenging ability was observed on the 95% ethanol extract of ARFT. Totally, 29 compounds were tentatively identified from the ARFT residue extract by using HPLC-QTOF-MS/MS, including 2 organic acids, 17 flavonoids, 4 fatty acids, 5 saponins, and 1 sugar. The results indicated that ARFT residue can be a promising source of natural antioxidants and α - glucosidase inhibitors. Practical applications Anoectochilus roxburghii formula tea (ARFT) is a popular health-promoting tea in China, but research on the bio-activities and functional constitution of ARFT and its residues is not available. This study suggested promising antioxidant and α - glucosidase inhibition of ARFT residue and revealed the presence of 29 major phytochemical compounds, which indicated that ARFT residue can be a potential resource of natural antioxidants and α - glucosidase inhibitors in food, cosmetic, and pharmaceutical industry.
研究领域:
植物化学
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药理学
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食品科学
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产品关联
DOI
高影响因子
Food Chemistry-X
·
2026
·
IF 9.2
Changdong Lin,Juyuan Luo,Shuo Wang,Cheng Shen,Shucan Zhang,Yongling Liu,Zhibo Song,Yumei Ma,Tao Chen,Yulin Li
Affinity ultrafiltration is widely used for rapid, targeted screening of bioactive natural compounds, but high-abundance components in complex matrices often mask low-abundance yet potent inhibitors, reducing sensitivity. Here, barley seedling extracts were preprocessed via HPLC peak-area clustering before affinity ultrafiltration to identify α-glucosidase inhibitors. This “clustering-prior-to-ultrafiltration” strategy enabled the discovery of four additional low-abundance inhibitors overlooked by direct ultrafiltration. These compounds exhibited stronger inhibitory activity (IC 50 : 217.75–583.35 μg/mL) than the three high-abundance components (IC 50 : 707.05–1044.95 μg/mL). Enzyme kinetics, spectroscopy, molecular docking, and dynamic simulations revealed their binding mechanisms. This approach enhances screening sensitivity and provides a basis for developing functional foods.
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Jie Shi,Mingquan Huang,Qiang Yang,Yin Xu,Jihong Wu,Hongqin Liu,Jinglin Zhang,Fuping Zheng,Wei Dong
A new convenient method for identifying colorant compounds (CCs) in food matrices was developed using high-performance liquid chromatography with a diode array detector and quadrupole-time-of-flight mass spectrometer (HPLC-DAD-Q/TOF-MS) combined with theoretical calculations. A model sample containing three typical CCs was completely separated via HPLC-DAD. The obtained 3D ultraviolet-visible (UV–vis) spectra revealed the maximum absorption wavelengths (MAWs) of all CCs (yellow, 430 nm; red, 520 nm; blue, 620 nm) in the range of 400–800 nm, and their colors were determined based on their MAWs. Temporary structures of the CCs were obtained using Q/TOF-MS analysis. Theoretical calculations were then performed to obtain the theoretical MAWs and colors of the CCs according to their calculated UV–vis spectra based on temporary structures. The structures of the CCs were confirmed without the need for authoritative standards by comparing the consistency between their experimental and theoretical MAWs and colors. This method is particularly suitable for identifying CCs or compounds with UV–Vis absorption, including new compounds, compounds for which standards are difficult to obtain, and known compounds without reporting relevant molecular information.
研究领域:
食品科学
·
分析化学
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产品关联
DOI
PubMed
高影响因子
Journal of Functional Foods
·
2017
·
IF 3.144
Ru Song,Qingqing Shi,Peiyu Yang,Rongbian Wei
We aimed to identify antibacterial peptides from Maillard reaction products of half-fin anchovy hydrolysates/glucose. Seven peptides from the active fraction of P3-2 derived from DEAE-Sepharose™ CL-6B chromatography and PL aquagel-OH 30 on HPLC system were identified by liquid chromatography-electrospray ionization/multi-stage mass spectrometry, and five peptides were selected for further synthesis on the basis of peptide sequences. The anionic peptide FFTQATDLLSR adopted an α-helical structure, as predicted by Network Protein Sequence @ analysis and helical wheel projection, and further determined using circular dichroism assay. The cationic peptide WLPVVR exhibited stronger inhibition effects against Escherichia coli than other peptides at similar concentration. Furthermore, differential sizes of hydrodynamic diameters of anionic 1,2-dimyristoyl-sn-glycero-3-phosphocholine liposome vesicles treated with peptides were observed, suggesting the clustering and decomposition of peptide on liposome vesicles. To the best of our knowledge, this is the first study that reports antibacterial peptides derived from the MRPs of half-fin anchovy hydrolysates.
研究领域:
食品科学
·
生物化学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Jing-Wen Hao,Wei-Ting Wang,Nai-Dong Chen,Yan Shen
The novel application of a combined screening method, utilizing AAPH, ABTS, and FRAP assays with HPLC, is first used for screening natural antioxidants in Green Calyx plums (GCP). This method was assumed that the peak areas of compounds with antioxidant activity in HPLC chromatograms would be significantly reduced or disappeared after incubating with the AAPH, ABTS, and FRAP. The thirteen screened antioxidants can be identified by Q-TOF-MS/MS. kaempferol-3-O-rutinoside, narcissoside, and astragalin were first reported in GCP. respectively. The thirteen screened antioxidants were quantified simultaneously at their maximum absorption wavelengths, with concentrations ranging from 0.61 to 79.30 mg/g across three distinct flowering stages. Furthermore, the in vitro activity and molecular docking of oxidative stress-related enzyme xanthine oxidase (XOD) were utilized to evaluate the antioxidant capacity of the screened compounds. Consequently, our method effectively screens for antioxidants within complex mixtures, positioning GCP as a promising reservoir of natural bioactive compounds.
研究领域:
植物化学
·
食品科学
·
分析化学
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产品关联
DOI
PubMed
高影响因子
Food Analytical Methods
·
2026
·Vol. 19
·期 2
·91
·
IF 3
Sun Weichao,Liu Huahong,Wu Yuxin,Qin Yuqi,Zhang Yu,Jin Wenying,Hai Hong,Zhang Yun,Nie Jinfang,Fu Haiyan
The geographical provenance of agricultural products is a key determinant of quality and economic value. An untargeted metabolomics-based ML pipeline was established to authenticate the origin of Yongfu Luohan Guo. LC-QTOF/MS profiling of samples from multiple origins generated comprehensive metabolite datasets, which were analyzed using supervised ML algorithms. Multivariate analysis revealed distinct metabolic signatures differentiating Yongfu and non-Yongfu Luohan Guo. The CNN algorithm outperformed other models, achieving 100% classification accuracy using 8 key metabolites These biomarkers include two flavonoids: 5-hydroxy-3-(5-hydroxy-2,4-dimethoxyphenyl)-6-methoxy-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one and glabrol; three terpenoids: rhodojaponin III, lapidin, and acetylcimigenol arabinoside; and three alkaloids: corynoxeine, indirubin, and hydroquinidine. Region-specific metabolite accumulation trends were observed in Yongfu Luohan Guo, correlating with fruit quality attributes. This metabolomics-ML integration strategy presents a scalable solution for geographical indication authentication of diverse agricultural products. Graphical
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DOI
高影响因子
Chemosensors
·
2023
·Vol. 11
·期 11
·558
·
IF 4.2
Zhenni Lan,Qing He,Mingxia Zhang,Huahong Liu,Liusen Fang,Jinfang Nie
Cadmium (Cd) pollution is an important environmental problem, as it is easily absorbed by plants and gradually accumulates in the human body through the food chain. This study aimed to elucidate the changes in the metabolic response of the rice cultivar “TanLiangYou215” under Cd stress. Rice was grown in soil culture at 0 (Control), 2 (Low group), and 10 (High group) mg/kg CdCl2for 90 days. The ultrastructural, Cd content, antioxidant activity, and metabolic changes to the rice in different tissues were analyzed. Phenotypic characterization and ultrastructure showed that the rice roots and leaves were significantly damaged and plant growth was inhibited in the High group, while plant growth was promoted in the Low group. Overall, Cd showed a regularity of “low promotion and high inhibition”. Physiological indices revealed that rice was significantly affected by Cd stress. Compared to the Control, Cd stress resulted in higher antioxidant enzyme activities, and the Low group suffered less oxidative damage than the High group. Metabolomic studies revealed that Cd stress significantly altered the metabolic profiles of rice plants. Rice responded to Cd stress by upregulating amino acids and regulating related pathways, including alanine, aspartate and glutamate metabolism, and arginine and proline metabolism. The significant expression of flavonoids with antioxidant properties helped rice resist the oxidative damage caused by Cd accumulation in the root tissue; Cd stress significantly downregulated glycerophospholipid metabolism in the stem and leaf tissues, which affected the cellular activities in rice stem and leaf tissues. We investigated the effects of Cd stress on ultrastructure, antioxidant activity, and metabolic changes in different tissues of the rice variety TLY215. Moreover, the different tissues of TLY215 can regulate these metabolic pathways to resist Cd stress, which provides valuable insights into the response of TLY215 to different concentrations of Cd.Keywords:cadmium (Cd);rice (Oryza sativaL.);phenotypic characterization;physiological activity;metabolomics
研究领域:
植物学
·
环境科学
·
代谢组学
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DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 35
·25289-25300
·
IF 3.9
Jian-jun Zhang,Qiu-shui Luo,Qing-qing Li,Qian Xu,Xiang Geng,Jian-hua Xiong
Chlorogenic acid (CGA), a polyphenol compound, exhibits excellent anti-oxidative, anti-hypoxic, antibacterial, antiviral, and anti-inflammatory activities, however the bioactivity of it has not been fully utilized in vivo due to its instability and low bioavailability. To address these issues, we prepared and characterized CGA-TPGS-LP, which is a TPGS-modified liposome loaded with CGA. The pharmacokinetics of CGA-TPGS-LP were studied in rats after oral administration. CGA-TPGS-LP was fabricated using a combination of thin film dispersion and ion-driven methods. The liposomes were observed to be uniformly small and spherical in shape. Their membranes were composed of lecithin, cholesterol, and TPGS lipophilic head with a TPGS hydrophilic tail chain coating on its surface. The loading efficiency and encapsulation efficiency were found to be 11.21% and 83.22%, respectively. The physicochemical characterisation demonstrated that the CGA was present in an amorphous form and retained its original structural state within the liposomal formulation. The stability of CGA was significantly improved by fabricating TPGS-LP. CGA-TPGS-LP exhibited good sustained-release properties in both simulated gastric and intestinal fluids. Following oral administration, ten metabolites were identified in rat plasma using UPLC-QTOF-MS. UPLC-QqQ-MS/MS quantitative analysis demonstrated that the oral bioavailability of CGA encapsulated in TPGS-modified liposomes was enhanced by 1.52 times. In addition, the three main metabolites of CGA had higher plasma concentrations and slower degradation rate. These results demonstrate that TPGS-modified liposomes could be a feasible strategy to further enhance the oral bioavailability of CGA, facilitating its clinical use.
研究领域:
药剂学
·
药理学
·
分析化学
·
药物递送系统
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产品关联
DOI
PubMed
高影响因子
Journal of Functional Foods
·
2018
·
IF 3.47
Rui-dan Wang,Guan-hua Su,Lin Wang,Qing Xia,Rui Liu,Qun Lu,Jiu-liang Zhang
This study was aimed at evaluating the hypouricemic effect of rape bee pollen from Qinghai province in China. Rape bee pollen crude extracts (RPCE) was obtained by n-butanol extraction and purified by polyamide resin and AB-8 resin respectively to generate five fractions (fraction 1–5). In vitro , fraction 5 had strongest inhibition on xanthine oxidase (XO) (IC 50 = 0.21 ± 0.02 mg mL −1 ) among five fractions and had reversible and mixed inhibitory effect on XO. Fraction 5 was further purified and then generated fraction 5′. In vivo , fraction 5′ had lower serum UA level and could reduce serum BUN, Cr levels and hepatic XO activity more effectively than RPCE in potassium oxonate-induced hyperuricemic mice . Moreover, fraction 5′ had higher CAT activity and content of GSH in hyperuricemic mice. Six compounds including quercetin-3-O-(2″-O-glucopyranosyl)-glucopyranoside (peak 1), quercetin-3-O-(2″-O-glucopyranosyl)-rhamnopyranoside (peak 2), kaempferol-3-O-(2″-O-glucopyranosyl)-glucopyranoside (peak 3) and N′, N″-di- p -coumaroylspermidine (peak 4–6) in RPCE were identified by using HPLC-ESI-QTOF-MS/MS, whereas only peak 4 to 6 were found in fraction 5′. This study shows that rape bee pollen has potential clinical application value as an effective anti-hyperuricemia bioactive drug or functional food.
研究领域:
药理学
·
生物化学
·
食品科学
·
医学
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产品关联
DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2022
·
IF 3.571
Hui Liu,Si-Yu Wang,Jin-Hao Zhu,Jin-Di Xu,Shan-Shan Zhou,Ming Kong,Qian Mao,Song-Lin Li,He Zhu
Si-Jun-Zi decoction (SJZD) with ginseng as the principal medicinal herb is a traditional Chinese Medicine multi-herb prescription that commonly employed to treat colorectal cancer etc. Previous studies showed that nearly half of the commercial ginseng was sulfur-fumigated, one of the postharvest processing methods that commonly causes sulfur-dioxide (SO 2 ) residue and chemical composition transformation in medical herbs. In this study, the effect of sulfur-fumigated ginseng on global quality of SJZD was evaluated by UPLC-QTOF-MS/MS based metabolomics and multiple chromatographic techniques based glycomics strategies. For non-saccharides components, sulfur-fumigated ginseng led to the emergence of sulfur-containing derivatives and alteration of saponins and flavonoids in SJZD. For saccharide components, sulfur-fumigated ginseng decreased the total contents and molecular weights of polysaccharides , changed the monosaccharide composition of polysaccharides, and increased the contents of oligosaccharides and free monosaccharides of SJZD. The alterations of SJZD were aggravated with the sulfur-fumigated content of ginseng. Those phenomena might be attributed to 1) sulfur-fumigation caused the generation of sulfur-containing derivatives in ginseng, which further transferred to SJZD, and 2) sulfur-fumigation caused the residue of SO 2 in ginseng, which reduced the pH value and further changed the dissolution of saponins and flavonoids and accelerated the degradation of the polysaccharides to oligosaccharides and/or monosaccharides in SJZD. Furthermore, although storage reduced the SO 2 residue in sulfur-fumigated ginseng, it couldn’t recover the alterations of chemical profiles in SJZD. In conclusion, sulfur-fumigated ginseng altered the global quality of SJZD, which promoted that extra attention must be paid during the application of herbal formulas that containing sulfur-fumigated herbs.
研究领域:
中医
·
药理学
·
代谢组学
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糖组学
·
草药
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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）