Showing 421 - 440 results of 562 for search '"Gas Chromatography"', query time: 0.10s Refine Results
  1. 421

    Ciprofloxacin stress changes key enzymes and intracellular metabolites of Lactobacillus plantarum DNZ-4 by Pin Chen, Xiaoqian Chen, Wei Yu, Bo Zhou, Lihua Liu, Yuzhuo Yang, Peng Du, Libo Liu, Chun Li

    Published 2022-03-01
    “…The results showed that the activities of hexokinase, pyruvate kinase, β-galactosidase and Na+, K+-ATPase after 1/2 minimum bacteriostatic concentration (MIC) CIP treatment were significantly decreased (P < 0.01). Gas chromatography-mass spectrometry was used to analysis the changes of main metabolites in the cells and principal component analysis and partial least square model were constructed. …”
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  2. 422

    Metabolomics-based study on the effect of low-voltage electrostatic field treatment on the storage quality of postharvest square bamboo shoots by Xi Wang, Yingchun Mu, Wei Su, Xing Lei, Zuhao Wang, Pulai Zhang

    Published 2025-01-01
    “…This study explored the effects of LP treatment on the storage quality of square bamboo shoots using physicochemical, gas chromatography–mass spectrometry, and metabolomics methods. …”
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  3. 423

    Comprehensive GC-MS Characterization and Histochemical Assessment of Various Parts of Three <i>Colchicum</i> Species from Bulgarian Flora by Ivayla Dincheva, Ilian Badjakov, Vasil Georgiev, Ivanka Semerdjieva, Radka Vrancheva, Ivan Ivanov, Atanas Pavlov

    Published 2025-01-01
    “…., and the Bulgarian endemic <i>Colchicum diampolis</i> Delip. et Česchm. Using gas chromatography-mass spectrometry (GC-MS), 66 metabolites were identified, encompassing free amino, organic, phenolic, and fatty acids, sugars, and alkaloids, which were distributed among various plant parts. …”
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    Article
  4. 424

    Influence of Frying Methods on Quality Characteristics and Volatile Flavor Compounds of Giant Salamander (Andrias davidianus) Meatballs by Wengang Jin, Jinjin Pei, Xiaohua Chen, Jingzhang Geng, Dejing Chen, Ruichang Gao

    Published 2021-01-01
    “…There was little distinction in sensory score, cohesiveness, and chewiness between the two frying methods (p>0.05). Gas chromatography ion migration chromatography (GC-IMS) was used for flavor compound analysis, and 50 flavor compounds were analyzed, containing 22 aldehydes, 11 ketones, 6 olefins, 4 acids, 3 esters, 3 alcohols, and 1 phenol. …”
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  5. 425

    The Inheritance and Variation of Floral Scent Compounds in Parent–Progeny Relationships of <i>Malus</i> by Junjun Fan, Yu Zai, Ye Peng, Qin Peng, Meng Sun, Qingqing Xiong, Jingze Ma, Chenchen Zhou, Wangxiang Zhang

    Published 2024-12-01
    “…In this study, the floral scent compounds and scent characteristics of five <i>Malus</i> taxa with clearly defined parent–progeny relationships were analyzed by sensory evaluation, an electronic nose, and gas chromatography–mass spectrometry. A total of 51 volatile compounds were identified in five taxa. …”
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    Article
  6. 426

    Biologically active substances of some species of the genus Lathyrus L. by A. E. Solovyeva, Т. V. Shelenga, M. O. Burlyaeva

    Published 2019-01-01
    “…The qualitative and quantitative analyses of phenolic compounds was performed by means of gas chromatography with mass spectrometry (GC-MS Agilent 6850, USA).Results. …”
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  7. 427

    Concurrent Extraction and Analysis of Atmospheric Particulate Matter-bound PBDEs, PAHs, Nitrated PAHs, and OPEs by Hsin-Chieh Kung, Bo-Wun Huang, Chien-Er Huang, Nicholas Kiprotich Cheruiyot, Guo-Ping Chang-Chien

    Published 2023-12-01
    “…After a series of cleanup and fractionation steps involving silica gel and alumina columns, PBDEs were analyzed using high-resolution gas chromatography-high-resolution mass spectrometry (HRGC-HRMS), while PAHs, N-PAHs, and OPEs were analyzed using GC-MS/MS. …”
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    Article
  8. 428

    Volatile profile and multivariant analysis of Sanhuang chicken breast in combination with Chinese 5-spice blend and garam masala by Rani Andaleeb, Danni Zhang, Shui Jiang, Yin Zhang, Yuan Liu

    Published 2023-01-01
    “…The flavour profiles of Sanhuang chicken breast (CB) and its blends with CS and GM were obtained by electronic nose (E-nose), solid-phase microextraction gas chromatography-mass spectrometry (SPME GC-MS) and GC-ion mobility spectrometry (GC-IMS). …”
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    Article
  9. 429

    Recovery of Bioactive Constituents from Olive Leaf Pruning Waste of Five Different Cultivars: A Comparison of Green Extraction Techniques to Maximize Health Benefits by Hamid Mushtaq, Simona Piccolella, Jose A. Mendiola, Lidia Montero, Elena Ibáñez, Severina Pacifico

    Published 2025-01-01
    “…Chemical profiling by UHPLC-HR-MS/MS (ultra-high-performance liquid chromatography high-resolution tandem mass spectrometry) and GC-MS (gas chromatography mass spectrometry) showed that UAM-EtOH effectively extracted polyphenols (especially luteolin derivatives) and triterpenes (notably maslinic acid), while PLE yielded the highest amount of secoiridoids (e.g., secologanoside). …”
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  10. 430

    Essential oils from Amorpha fruticosa against hepatocellular carcinoma based on network pharmacology by Yixian Liu, Xiaojun Zhang, Jiacong Hao, Ying Zhao, Min Zou, Huiping Chen, Jintao Zhang

    Published 2025-01-01
    “…Methods The chemical compositions of EOs were examined using gas chromatography-mass spectrometry (GC-MS). The inhibitory effect of the EOs on HCC was evaluated by MTT assay. …”
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  11. 431

    Critical Effects of Smoking Parameters on the Levels of Polycyclic Aromatic Hydrocarbons in Traditionally Smoked Fish and Meat Products in Finland by Mirja Hokkanen, Ulla Luhtasela, Pirkko Kostamo, Tiina Ritvanen, Kimmo Peltonen, Marika Jestoi

    Published 2018-01-01
    “…Eighty fish products and 62 meat products were sampled and analysed in Finland, in the year of 2012 for four marker polycyclic aromatic hydrocarbons (PAH4) with an accredited gas chromatography-tandem mass spectrometry method. In general, the determined PAH4 levels were relatively low and below the maximum levels. …”
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  12. 432

    Chemical Composition and Biological Activities of the Essential Oils of Chrysophyllum albidum G. Don (African Star Apple) by Daniel Nartey, Joseph Nana Gyesi, Lawrence Sheringham Borquaye

    Published 2021-01-01
    “…Don, were characterized by gas chromatography-mass spectrometry in this study. The antimicrobial, antibiofilm, and antioxidant activities of the essential oils were also investigated. …”
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    Article
  13. 433

    Design and Preparation of Activated Carbon with High Specific Surface Area and Porosity Through an Organic Activator Coupled with CO2 Activation by Yizhong Li, Xiaoqing Yan, Zhi Cui, Jingkang Yuan, Baorong Xu, Guidong Yang

    Published 2025-02-01
    “…By means of thermogravimetric (TG) analysis and simultaneous thermal analysis‐Fourier transform infrared spectroscopy‐gas chromatography/mass spectrometry a suggested activation process and mechanism of the novel organic activators is proposed. …”
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  14. 434

    Microbiological And Physicochemical Analyses Of Oil Contaminated Soil From Major Motor Mechanic Workshops In Benin City Metropolis,Edo State, Nigeria by FO Ekhaise, J Nkwelle

    Published 2013-05-01
    “…The biodegradation potentials of the hydrocarbon degrading microbial isolates monitored by gas chromatography (GC) showed Pseudomonas sp. and Aspergillus versicolor to have recorded the highest biodegradation potentials among the microbial isolates. …”
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  15. 435

    Effects of Soursop flowers (Annona muricata L.) extract on chemical changes of refined palm olein stored at frying temperature by Tonfack Djikeng Fabrice, Womeni Hilaire Macaire, Bala Krishna Marrapu, Mallampalli Sri Lakshmi Karuna, Rachapudi Badari Narayana Prasad, Linder Michel

    Published 2017-12-01
    “…Additionally, the evolution of the fatty acid composition of each oil sample during the storage was assessed by gas-chromatography using a flame ionization detector (GC/FID). …”
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  16. 436

    Aroma profile of two commercial truffle species from Yunnan and Sichuan, China: inter- and intraspecific variability and shared key compounds by Bin Lu, Jesús Perez-Moreno, Fengming Zhang, Andrea C. Rinaldi, Fuqiang Yu

    Published 2021-03-01
    “…In this study, volatile organic compounds (VOCs) from fruiting bodies of two Chinese truffles of commercial relevance, Tuber indicum and Tuber pseudohimalayense, were analyzed using headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). We aimed to characterize the aroma profile and determine whether it would be influenced by provenance and stage of maturation. …”
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  17. 437

    Antioxidant and Antimicrobial Properties of Cactus Pear (Opuntia) Seed Oils by Esther Ramírez-Moreno, Raquel Cariño-Cortés, Nelly del Socorro Cruz-Cansino, Luis Delgado-Olivares, José Alberto Ariza-Ortega, Vanessa Yelina Montañez-Izquierdo, María Manuela Hernández-Herrero, Tomás Filardo-Kerstupp

    Published 2017-01-01
    “…The fatty acid profile was analyzed by gas chromatography-mass spectrometry (GC-MS). Oil from green cactus pear seeds obtained with ethanol and ethyl acetate exhibited higher antioxidant activity (p<0.05) of 323 and 316 μmol TE/20 mg (p < 0.05), respectively, compared to red cactus pear seed oil (≈274 and 247 μmol TE/20 mg with ethyl acetate and ethanol, resp.). …”
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  18. 438

    Enhancing the targeted and untargeted analysis of honey by vacuum-assisted SPME-GC × GC-MS. A green, practical, and highly informative approach by Damien Eggermont, Francesca Pardi, Giorgia Purcaro

    Published 2025-03-01
    “…In this work, we explored the use of Vac-HS coupled with comprehensive two-dimensional gas chromatography coupled with mass spectrometry to simultaneously determine 5-hydroxymethylfurfural (a semi-volatile processing marker in honey) and the entire volatile profile, which is recognized as a highly informative fingerprint of the geographical and botanical authenticity of honey. …”
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  19. 439

    In vitro propagation of Codonopsis pilosula (Franch.) Nannf. using apical shoot segments and phytochemical assessments of the maternal and regenerated plants by Roggers, Gang, Richard, Komakech, Yuseong, Chung, Denis, Okello, Wook, Jin Kim, Byeong, Cheol Moon, Nam, Hui Yim, Youngmin, Kang

    Published 2023
    “…Furthermore, the tissues (roots and shoots) of maternal and in vitro‑regenerated C. pilosula plants were subjected to Fourier‑transform near‑infrared (FT‑NIR) spectrometry, Gas chromatography‑mass spectrometry (GC–MS), and their total flavonoids, phenolics, and antioxidant capacity were determined and compared. …”
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  20. 440

    The antibacterial and antifungal potential of marine natural ingredients from the symbiont bacteria of mangrove by D. Pringgenies, W. Ari Setyati, F. Feliatra, D. Ariyanto

    Published 2023-10-01
    “…Further, everal tests were conducted, including the antibacterial test, antifungal test, molecular identification, and gas chromatography-mass spectrometry. The pathogenic bacteria used in the antibacterial test were Staphylococcus aureus, Vibrio harveyi, and Vibrio alginolyticusFINDINGS: The antibacterial test results showed that eight isolates were capable of producing an inhibition zone against S. aureus, seven isolates were positive for antibacterial activity against Vibrio harveyi, and 10 isolates were positive for antibacterial activity against Vibrio alginolyticus. …”
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