Showing 381 - 400 results of 562 for search '"Gas Chromatography"', query time: 0.06s Refine Results
  1. 381

    Chemical Composition and Cytotoxic and Antioxidant Activities of Satureja montana L. Essential Oil and Its Antibacterial Potential against Salmonella Spp. Strains by Hanene Miladi, Rihab Ben Slama, Donia Mili, Sami Zouari, Amina Bakhrouf, Emna Ammar

    Published 2013-01-01
    “…The plant was collected from south France mountain, and its EO was extracted by hydrodistillation (HD) and analysed by gas chromatography/mass spectrometry (GC/MS). Thirty-two compounds were identified accounting for 99.85% of the total oil, where oxygenated monoterpenes constituted the main chemical class (59.11%). …”
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    Article
  2. 382

    Valorization of Food Waste to Produce Eco-Friendly Means of Corrosion Protection and “Green” Synthesis of Nanoparticles by Georgii Vasyliev, Victoria Vorobyova

    Published 2020-01-01
    “…The waste extracts for corrosion and scale inhibitors of mild steel in tap water were prepared by the conventional extraction method that uses 2-propanol and characterized by gas chromatography-mass spectroscopy (GC-MS). Inhibition of scaling and corrosion was investigated in thermal scaling conditions on the surface of the electrode manufactured from mild steel. …”
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  3. 383

    Phytochemical Constituents and Antioxidant Activity of Sweet Basil (Ocimum basilicum L.) Essential Oil on Ground Beef from Boran and Nguni Cattle by Andrew Bamidele Falowo, Felicitas Esnart Mukumbo, Emrobowansan Monday Idamokoro, Anthony Jide Afolayan, Voster Muchenje

    Published 2019-01-01
    “…The phytoconstituents of SBEO were analyzed by gas chromatography mass spectrometry. Thereafter, minced beef samples from Nguni and Boran cattle were treated with either no additives (control, C) or SBEO added at 2% (SB2), 4% (SB4), or 6% (SB6). …”
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  4. 384

    Catalytic Synthesis of Diethyl Carbonate from Carbon Dioxide using Catalyst KI/EtONa with Propylene Oxide as Dehydration Agent and Process Optimization Based on Box-Behnken Design by Lintang Alivia Anggerta, Firman Kurniawansyah, Rizky Tetrisyanda, Gede Wibawa

    Published 2025-01-01
    “…Product identification was conducted with gas chromatography analysis with FID detector. Besides kinetic study, optimizing the parameter process in DEC synthesis is necessary to find the highest yield of DEC because it is difficult to achieve optimum conditions using trial and error. …”
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  5. 385

    Comparative lipidome and transcriptome provide novel insights into zero-valent iron nanoparticle-treated Fremyella diplosiphon by Yavuz S. Yalcin, Samson Gichuki, Huan Chen, Anithachristy Sigamani Arumanayagam, Shyama Malika Malwalage, Viji Sitther

    Published 2024-11-01
    “…Comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry revealed a 20–25% higher percentage of FAMEs in nZVI-treated F. diplosiphon strain B481-SD compared to B481-WT. …”
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  6. 386

    Effects of storage on volatile organic components and physiological properties of different storage-tolerant rice varieties by Dawei Zhu, Xin Zheng, Huiyin Dong, Xingquan Liu, Xianqiao Hu, Mingxue Chen, Xin Liu, Yafang Shao

    Published 2025-01-01
    “…To address this gap, we analyzed volatile organic components (VOCs) identified by gas chromatography-ion mobility spectrometry (GC-IMS) and related physicochemical properties of different storage-tolerant rice varieties during storage. …”
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  7. 387

    In Vitro Cercaricidal Activity, Acute Toxicity, and GC/MS Analysis of Some Selected Ghanaian Medicinal Plants by Bright Osei-Mensah, Yaw Duah Boakye, William Kofi Anyan, Theresa Appiah Agana, Eugene Agyei Aboagye, Ivy Bentil, Elvis Suatey Lomotey, Francis Adu, Christian Agyare

    Published 2023-01-01
    “…The percentage of mortalities for each extract was recorded. Gas chromatography/mass spectrometry (GC/MS) analysis was conducted on all the plant extracts. …”
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  8. 388

    Isolation, characterization and control of Botrytis spp. pathogenic on strawberry in Iran by Fatemeh Maghsoodi, Parissa Taheri, Saeed Tarighi

    Published 2025-01-01
    “…A total of 22 compounds were identified in the EO by gas chromatography-mass spectrometry. The major compounds of F. gummosa EO were β-Pinene (% 37.7), γ-Terpinene (% 21) and a-pinene (% 12). …”
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  9. 389

    Comparative studies on physicochemical properties, volatile flavor substances and microbial community of Mianning ham at different altitudes by Qianhui Zeng, Lili Ji, Wei Wang, Jiamin Zhang, Ting Bai, Ling Gan, Lin Chen

    Published 2025-02-01
    “…BackgroundThis study explores the impact of varying altitudes on the quality characteristics of Mianning ham.MethodsBy utilizing Solid-Phase Microextraction—Gas Chromatography–Mass Spectrometry (SPME-GC-MS) technology and high-throughput sequencing techniques, the physicochemical properties, volatile flavor compounds, and shifts in microbial communities of Mianning ham at different altitudes were investigated.ResultsHam’s water content, aw, pH, malondialdehyde content,and nitrite content at high altitudes were higher, while the salt content of ham at low altitudes was higher. 112 volatile compounds were identified in ham fermented for 0, 1, and 2 years at low altitude and high altitude, and the volatile compounds in ham at high altitude were more abundant than those in ham at low altitude. …”
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  10. 390

    Association of high organochlorine pesticide serum levels with oxidative stress in intestinal metaplasia and gastric cancer by Gholamreza Asadikaram, Mohammad Reza Ashrafi, Sodaif Darvish Moghaddam, Moslem Abolhassani, Fatemeh Bagheri

    Published 2025-01-01
    “…The levels of organochlorine pesticides in the serum of gastric cancer (n = 34), intestinal metaplasia (n = 8), functional dyspepsia patients (n = 48) and control group (n = 46), were measured by gas chromatography equipment. Oxidative stress parameters and erythrocyte acetylcholine esterase activity were also measured in these individuals. …”
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  11. 391

    Formulation, Characterization, Antibacterial Activity, Antioxidant Activity, and Safety Evaluation of <i>Camphora longepaniculata</i> Essential Oil Nanoemulsions Through High-Press... by Yue Yan, Changhe Wei, Xin Liu, Xin Zhao, Shanmei Zhao, Shuai Tong, Guoyou Ren, Qin Wei

    Published 2024-12-01
    “…The volatile compounds of CLEO were identified by gas chromatography–mass spectrometry. CLNEs were prepared using EL-40 (5%, <i>w</i>/<i>w</i>) as the surfactant via the high-pressure homogenization method. …”
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  12. 392

    Association between Polyunsaturated Fatty Acid Profile and Bronchial Inflammation in Bronchiolitis Obliterans by Silvija P. Jerkic, Laura Bächle, Ruth Pia Duecker, Lucia Gronau, Andreas G. Chiocchetti, Stefan Zielen, Ralf Schubert

    Published 2023-01-01
    “…The PUFA profile was determined in the serum and induced sputum by gas chromatography. Results. Patients presented with significantly lower FVC and FEV1 as well as higher RV and LCI measurements compared to the control group. …”
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  13. 393

    Antimicrobial and antiproliferative activity of biosynthesized manganese nanocomposite with amide derivative originated by endophytic Aspergillus terreus by Nashwa El-Gazzar, Reem Farouk, Nervana S. Diab, Gamal Rabie, Basel Sitohy

    Published 2025-02-01
    “…In addition, the most potent product was identified based on instrumental analysis through Nuclear magnetic resonance (NMR), Fourier-transform infrared (FTIR), and Gas chromatography-mass spectrometry (GC.MS). The purified product was combined with biosynthsesized manganese nanoparticles (MnNPs) for the production of nanocomposite (MnNCs). …”
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  14. 394

    Characteristic and flavor profiles of specialty Arabica coffee derived from fermentation with protease, at different conditions by Wongyai Intugon, Suttisintong Khomson, Thumthanaruk Benjawan, Foophow Tita, Yasutomo Tamaki, Rungsardthong Vilai

    Published 2025-01-01
    “…In this study, the flavor profiles of Arabica coffee (Coffea arabica L.) beans treated with protease, at different enzyme loading, time, and pH, were investigated using gas chromatography tandem mass spectrometry (GC-MS/MS). …”
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  15. 395

    Sustainability by extraction of bioactive compounds from onion seeds by Mestour, Selma, Meniai, Abdeslam-Hassen, Melloul, Sarra, Louaer, Mehdi

    Published 2024-05-01
    “…This led to optimal operating conditions of 250 bar, 57 °C, 0.25 mm and 50 g CO2/min for the best oil extraction yield value of 24.36%. Furthermore, gas chromatography-mass spectrometry (GC-MS) was used to identify qualitatively and quantitatively the chemical composition of the onion seed oils. …”
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  16. 396

    Differences in Aroma Quality of Different Types of Jinmudan Tea Made from Tea Leaves Harvested in Summer and Autumn by TANG Mengting, LIAO Xiansheng, WU Xianshou, WEI Mingxiu, ZHENG Yucheng, JIN Shan, ZHANG Jianming, YE Naixing

    Published 2025-01-01
    “…Headspace-solid phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS) was used to determine and analyze the volatile metabolites in the 10 tea samples. …”
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  17. 397
  18. 398

    Composition and Significance of Bacterial Microbiota and Volatile Organic Compounds of Swiss-Dutch-Type Cheese as Determined by PCR-DGGE and HS-GC by Beata Nalepa, Magdalena Anna Olszewska, Lidia Hanna Markiewicz, Marek Aljewicz

    Published 2019-08-01
    “…Bacterial diversity and VOCs (acetaldehyde; ketones: acetone, diacetyl, acetoin; alcohols: methanol, ethanol; esters: ethyl acetate, ethyl propionate, ethyl butyrate; fatty acids: acetic acid, propionic acid, isobutyric acid, butyric acid, isovaleric acid, valeric acid, isocaproic acid, caproic acid, heptanoic acid) were determined by polymerase chain reaction - denaturing gradient gel electrophoresis (PCR-DGGE), and headspace gas chromatography (HS-GC), respectively. Season influenced the composition of both bacterial microbiota and VOCs in cheese. …”
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  19. 399

    Rapid assessment of the main economic value indicators in lupine flour samples using infrared spectroscopy by V. S. Popov, A. V. Salikova, I. N. Perchuk, N. G. Konkova, G. P. Egorova, M. A. Vishnyakova, T. V. Shelenga

    Published 2024-05-01
    “…The oil content in lupine seeds was assessed by the defatted dry residue technique in Soxhlet extractors, protein by the Kjeldahl method, and quinolizidine alkaloids by gas chromatography coupled with mass spectrometry. All indicators were recalculated on the dry-weight basis.Results and conclusion. …”
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  20. 400

    Rapid Determination of 21 Chinese Domestically Registered Pesticides in Ginseng Using Cleanup Based on Zirconium-Oxide-Modified Silica and Ultrahigh-Performance Liquid Chromatograp... by Zhongbei Zhang, Zhou Lu, Nan Fang, Zhiguang Hou, Weiming Ren, Yueru Li, Zhongbin Lu

    Published 2021-01-01
    “…The combination of Z-Sep and PSA provided good recovery for all analytes and the cleanest matrix background out of a number of PSA-based sorbent combinations, as indicated by high-performance liquid chromatography (HPLC) and gas chromatography (GC). Instrumental analysis was completed in 5 min using the ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). …”
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