Showing 621 - 640 results of 847 for search '"aromaticity"', query time: 0.06s Refine Results
  1. 621

    Facile heterocyclic synthesis and antimicrobial activity of polysubstituted and condensed pyrazolopyranopyrimidine and pyrazolopyranotriazine derivatives by Hafez Hend N., Alshammari Abdulrahman G., El-Gazzar Abdel-Rhman B. A.

    Published 2015-12-01
    “…Condensation of 2 with aromatic aldehyde gave the corresponding Schiff bases 11a,b, the oxidative cyclization of the hydrazone with appropriate oxidant afforded 11-(4- fluorophenyl))- 2-(4-substituted phenyl)-10-methyl-8,11-dihydropyrazolo-[ 4’,3’:5,6]pyrano[3,2-e][1,2,4]triazolo[1,5-c]pyrimidines (12a,b). …”
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  2. 622

    Modifications in aroma characteristics of ‘Merlot’ dry red wines aged in American, French and Slovakian oak barrels with different toasting degrees by Haocheng Lu, Binhao Cheng, Yibin Lan, Changqing Duan, Fei He

    Published 2024-01-01
    “…Aging in oak barrels is widely used in enology which could bring flavor changes and aromatic complexity to wines. In the present study, the aroma compounds were analyzed from the ‘Merlot’ dry red wines, which were fermented in two types of fermenters (stainless steel tank and rotated oak barrel) and aged in six types of oak barrels (three geographic origins × two toasting degrees) for different time (0, 3, 6 and 9 months, respectively). …”
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  3. 623

    Development of Antibacterial and Halochromic Textiles by Modification of Emodin from Japanese Knotweed by Martina Avbelj, Monika Horvat Zagorec, Hrvoje Petković, Marija Gorjanc, Jernej Iskra

    Published 2025-12-01
    “…Emodin was first modified by introducing different functional groups (NO2, SO3H, Br, and Cl) into the aromatic ring to obtain products with different colors. …”
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  4. 624

    Maillard reaction in Chinese household-prepared stewed pork balls with brown sauce: potentially risky and volatile products by He Li, Xiangyi Tang, Chunjian Wu, Shujuan Yu

    Published 2021-03-01
    “…By solid phase extraction combined with HPLC-MS, 4 kinds of harmful compounds including acrylamide (AA), heterocyclic aromatic amines (HAAs), 4-methylimidazole (4-MEI) and furan were analyzed in SPB-BS and their amounts ranged 0.05–0.50 mg/kg. …”
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  5. 625

    Co-Pyrolysis of Plastic Waste and Lignin: A Pathway for Enhanced Hydrocarbon Recovery by Vilmantė Kudelytė, Justas Eimontas, Rolandas Paulauskas, Nerijus Striūgas

    Published 2025-01-01
    “…The results showed that the main functional groups of lignin monitored by TG-FTIR were aromatic and aliphatic hydrocarbons, while all plastics showed the same results for hydrocarbons. …”
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  6. 626

    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
    “…Aldehydes were the major contributors of chicken aroma, while most of the aromatic hydrocarbons were generated by spices. Almost all chicken key-compounds produced by oxidation reaction were either reduced or eliminated by marination, showing the antioxidation capacity of spices leading to meat preservation. …”
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  7. 627
  8. 628

    Evaluation of Ethnopharmacological and Antioxidant Potential of Zanthoxylum armatum DC. by Rabia Kanwal, Muhammad Arshad, Yamin Bibi, Saira Asif, Sunbal Khalil Chaudhari

    Published 2015-01-01
    “…The ethnopharmacological study of Z. armatum revealed the use of different plant parts for curing various ailments including cholera, chest infection, fever, indigestion, stomach disorders, gas problems, piles, toothache, gum problems, dyspepsia, as carminative, antipyretic, aromatic, tonic, and stomachic. Keeping in view the medicinal potential of the plant, the antioxidant activity was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, reducing power, and phosphomolybdate assay using different concentrations (7.81 μg/mL–250 μg/mL). …”
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  9. 629

    Fertilization and Colors of Plastic Mulch Affect Biomass and Essential Oil of Sweet-Scented Geranium by Anderson de Carvalho Silva, Arie Fitzgerald Blank, Wallace Melo dos Santos, Paloma Santana Prata, Péricles Barreto Alves, Maria de Fátima Arrigoni-Blank

    Published 2014-01-01
    “…Sweet-scented geranium (Pelargonium graveolens L’Hér), a plant belonging to the Geraniaceae family, has medicinal and aromatic properties and is widely used in the cosmetic, soap, perfume, aromatherapy, and food industries. …”
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  10. 630

    ZIF-8/PLA porous composite microspheres: preparation, characterization, and effective removal of gaseous benzene by Jiali Li, Peijian Sun, Yipeng Wang, Xuehui Sun, Bin Peng, Weili Xu, Mengmeng Liu, Cong Nie

    Published 2025-02-01
    “…The adsorption capacity of gaseous benzene on these ZIF-8/PLA microspheres is as high as 77–238 mg/g and 18%–44% of benzene can be removed from the cigarette smoke by using these ZIF-8/PLA microspheres as absorbents due to the interconnected hierarchical porous network enhancing the fast gas diffusion and the strong π-π stacking interactions of ZIF-8 towards aromatic hydrocarbons, showing the great potential of these ZIF-8/PLA microspheres as adsorbents for efficient removal of gaseous benzene.…”
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  11. 631

    Heuristic Approach to Comparing the Environmental Impacts of Carbon Nanotube Production Methods by Ahmad Atif Fikri, Irham Fadlika, Albarrobi Nabila Saeful, Krisna Dwipa Muhdi, Daniel Febrian Pratama, Nasir Garba Bello

    Published 2024-07-01
    “…Studies into the environmental impact of the CNTs production process found that during thermal pretreatment of the reactant gas, more than 45 by-products were formed, including methane, volatile organic compounds, and polycyclic aromatic hydrocarbons. Calculating the environmental impact of CNTs production method often has challenges in implementation, because each production process has different systems and needs. …”
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  12. 632

    Synergistic Effect of Multi-field Force on Condensable Particulate Matter Properties and Behavior in Flue Gas: A Case Study in a Municipal Solid Waste Incineration Plant by Wenting Liu, Bowen Zhao, Qian Feng, Zhiyong Zhou, Jianyi Lu

    Published 2022-11-01
    “…The results showed that hydrocarbons, esters and aromatic compounds were the main organic substances in CPM. …”
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  13. 633

    Influence of vintage and grape maturity on volatile composition and foaming properties of sparkling wine from Savvatiano (<i>Vitis vinifera</i> L.) variety by Dimitrios Miliordos, Nikolaos Kontoudakis, Aggeliki Kouki, Alexandros Kanapitsas, Despina Lola, Elli Goulioti, Yorgos Kotseridis

    Published 2025-01-01
    “…This is crucial not just for achieving the desired alcohol content in the wine but also for ensuring the production of the aromatic precursors. The chemical composition of sparkling wines is closely linked to the quality of their foam. …”
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  14. 634

    Simultaneous determination of warfarin and 7-hydroxywarfarin in rat plasma by HPLC-FLD by Zayed Aref, Babaresh Wahby M., Darweesh Ruba S., El-Elimat Tamam

    Published 2020-09-01
    “…The diphenyl chemistry of the stationary phase provided a unique selectivity for separating the structurally related aromatic analytes, warfarin and 7-hydroxywarfarin, allowing their successful quantification in the complex plasma matrix. …”
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  15. 635

    Using a Micro Sampler on a Drone to Extract Organic Vapors—A Case Study of Monitoring Industrial Pollution by Wen-Hsi Cheng, Chung-Shin Yuan

    Published 2020-11-01
    “…The mainly emitted compounds, including aromatic hydrocarbons (toluene of 1,450 ± 650 ppb, ethylbenzene of 34 ± 12 ppb and xylenes of 51 ± 25 ppb), formaldehyde (50 ± 12 ppb), alkanes (propane of 30 ± 10 ppb), triacetin (7,620 ± 1600 ppb) and terephthalic acid (20 ± 5 ppb) were collected and then identified by the off-line gas chromatography (GC)-mass spectroscopy (MS) system in the laboratory. …”
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  16. 636

    Comparative Study of Antibacterial Activity of Cistus ladanifer L. Leaves Extracted by Ultrasound-Assisted Extraction and Maceration by Houda Chtibi, Kaoutar Harboul, Taofiq Benali, Abdelhakim Bouyahya, Khabbach Abdelamjid, Said Louahlia, Jactty Chew, Long Chiau Ming, Khalil Hammani

    Published 2023-12-01
    “…Notably, a wealth of bioactive compounds has been discovered in medicinal and aromatic plants, and their potential utility in the development of treatments for infectious diseases has been well-established. …”
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  17. 637

    Study of Post-Radiation Effects in Gasolines by Jabbarova Lala Yusif, Mustafaev Islam Israfil, Ibadov Navai Ayyub, Guliyeva Nigar Gacay, Mirzayeva Aida Suleyman

    Published 2025-01-01
    “…Adding small amounts of aromatic compounds to the fuel can increase its resistance to gamma radiation. …”
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  18. 638

    Green Synthesize and Characterization of Copper Nanoparticles Using Iranian Propolis Extracts by Yasamin Seyyed Hajizadeh, Naser Harzandi, Ebrahim Babapour, Mohsen Yazdanian, Reza Ranjbar

    Published 2022-01-01
    “…There were sharp peaks at 2925, 1637, and 1515 to 1076 cm−1 associated with the C = O and C = C aromatic stretching frequencies. According to UV-Vis spectrophotometry investigation, CuO NPs exhibit a characteristic peak at 385 nm, showing significant surface plasmon resonance (SPR) with propolis (Khalkhal) extract. …”
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  19. 639

    Antioxidant and Antimicrobial Activity of New Amide Compounds Containing Azo Group Using Dicyclohexylcarbodiimide (DCC) as Coupling Agent by Dania Mohammed Saleh, Bushra Kamel Al-Salami

    Published 2025-01-01
    “…Compound A2 was reacted with substituted aromatic amines such as 2-amino-4,6-dimethylpyridine, sulfamerazine, sulfadiazine, sulfanilamide, sulfathiazole, and sulfanilic acid to form corresponding amides using DCC as coupling reagent to be promoted condensation reaction. …”
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  20. 640

    Analysis of Treated Wastewater Produced from Al-Lajoun Wastewater Treatment Plant, Jordan by Waleed Manasreh, Atef S. Alzaydien, Malahmeh .M

    Published 2009-01-01
    “…The treated wastewater contained some organic compounds of toxic type such as polycyclic aromatic hydrocarbons. Results showed that the soil was low in its heavy metal contents and total organic carbon with distance from the discharging pond, which attributed to the adsorption of heavy metals, total organic carbon and sedimentation of suspended particulates. …”
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