Showing 261 - 280 results of 483 for search '"free radical"', query time: 0.10s Refine Results
  1. 261

    Comprehensive Evaluation of Quality Characteristics and Processing Suitability of Different Varieties of Large-fruited Sea Buckthorn Juice from Xinjiang Using Multivariate Analysis... by Rong HAN, Yan MA, Yu AO, Ting ZHANG, Xintao MENG, Mingqiang XU, Yan PAN

    Published 2025-02-01
    “…The results indicated that ZYH exhibited the highest b* and c, as well as contents for total phenols (0.9 mg/mL), vitamin E (63.14 μg/g), vitamin C (69.61 mg/100 g), DPPH (97.13%), ABTS+ free radical scavenging capabilities (61.99%) , and FRAP antioxidant capacity (0.85 μmol Trolox/mL). …”
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    Article
  2. 262

    Preparation of Sea-buckthorn Oil Microcapsule Composite Film and the Preservation Effect of Hand-grabbed Mutton by Bingbing ZHANG, Guishan LIU, Delang XIE, Haiyang MA, Yang LI, Fang MA, Xiaojun LI, Qingqing CAO, Xiaoxue LI, Qian ZHANG

    Published 2025-02-01
    “…Compared with coating treatment, DPPH and ABTS+ free radical scavenging rates decreased by 18.95% and 19.84% after 15 d. …”
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    Article
  3. 263

    Evaluation of taste quality of Keemun congou black tea during ripening and the effect of this quality on antioxidant capacity and in vitro inhibition of α-amylase and α-glucosidase... by Wenjing Huang, Zhibin Ye, Yida Wu, Tianzi Yu, Wei Zhao, Zihao Qi, Yanqun Jiang, Qiuyan Liu, Guofu Lu, Jingming Ning

    Published 2025-02-01
    “…Experiments regarding the inhibition of α-amylase and α-glucosidase activity and scavenging of 2,2-diphenyl-1-picrylhydrazyl radical revealed that ripening triggered the cascade reaction of polyphenols to form catechin polymers and flavonoid glycosides, thereby changing the dual biological functions of hypoglycaemia and free radical scavenging in vitro. Our study confirms the key role of ripening in enhancing the taste quality and potential health functional activities of KCBT.…”
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  4. 264

    A tannic acid-based intumescent flame retardant for improving flame retardancy of epoxy composites by Xiaosui Chen, Yaoting Ma, Shuzheng Liu, Aiqing Zhang, Wei Liu, Shengchao Huang

    Published 2025-01-01
    “…Analyses from the condensed char and pyrolysis gases indicated that the improved flame retardancy was mainly attributed to the cooperation of the free-radical quenching effect of P-containing radicals and phenoxy radicals working in stages (derived from DOPO and TA respectively) and the physical barrier effect caused by the highly graphited, intumescent and porous char layer (reinforced by P- and Si-containing cross-linked structures). …”
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  5. 265

    Evaluation of Phytochemical, Antioxidant, and Memory-Enhancing Activity of Garuga pinnata Roxb. Bark and Bryophyllum pinnatum (Lam) Oken. Leaves by Ravin Bhandari, Sabina Gyawali, Nisha Aryal, Devika Gaire, Kalpana Paudyal, Abaru Panta, Pooja Panth, Dirgha Raj Joshi, Rabindra Kumar Rokaya, Pramod Aryal, Jitendra Pandey

    Published 2021-01-01
    “…Greater phenolic content was quantified in B. pinnatum bark extract (156.80 ± 0.33 µg GAE/mg dry extract) as well as the antioxidant potency (69.77% of free radical inhibition at the 100 µg/mL concentration). …”
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  6. 266
  7. 267

    Preparation and Properties of Antifreeze Rewarming Hydrogel Dressings by Meng Yan, Xiaorong Dong, Jingjing Sun, Yijun Liu, Shengchao Yang, Xing Tian, Shuang Zheng, Lisha Yin, Yanan Fu, Dongmei Li, Lin Cui, Gang Li, Zhongpeng Qiu, Zhiyong Liu

    Published 2025-02-01
    “…Herein, the PAM/CS/MXene30/Betaine5/AgNPs200(PCM30B5A200) hydrogel based on chitosan (CS) and acrylamide (AM) is designed and fabricated by thermally initiated free radical polymerization. The dressing has excellent rewarming properties, anti‐freezing properties, tensile properties, repeatable self‐adhesion and antibacterial properties. …”
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    Article
  8. 268

    Phenolic Acid and Flavonoid Content Analysis with Antioxidant Activity Assessment in Chinese <i>C. pi. Shen</i> Honey by Ningxin Qi, Wen Zhao, Chenghua Xue, Lin Zhang, Han Hu, Yue Jin, Xiaofeng Xue, Rui Chen, Jinzhen Zhang

    Published 2025-01-01
    “…Shen</i> honey by colorimetric, UPLC-MS/MS, Ferric ion Reducing Antioxidant Power (FRAP), 2,2-bisazo-bis (3-ethyl-benzothiazole-6-sulfonic acid) (ABTS) free radical capacity, and 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH) scavenging ability methods. …”
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  9. 269

    Assembly of Genetically Engineered Ionizable Protein Nanocage-based Nanozymes for Intracellular Superoxide Scavenging by Qiqi Liu, Zhanxia Gao, Xiangyun Zhang, Qiannan Duan, Yue Zhang, Adam C. Midgley, Li Jiao, Ruming Liu, Mingsheng Zhu, Deling Kong, Jie Zhuang, Xinglu Huang

    Published 2025-01-01
    “…Abstract Nanozymes play a pivotal role in mitigating excessive oxidative stress, however, determining their specific enzyme-mimicking activities for intracellular free radical scavenging is challenging due to endo-lysosomal entrapment. …”
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  10. 270

    Gastroprotective Value of Berries: Evidences from Methanolic Extracts of Morus nigra and Rubus niveus Fruits by Luciane Angela Nottar Nesello, Maria Luisa Maes Lima Beleza, Marihá Mariot, Luísa Nathália Bolda Mariano, Priscila de Souza, Adriana Campos, Valdir Cechinel-Filho, Sérgio Faloni Andrade, Luísa Mota da Silva

    Published 2017-01-01
    “…The total phenolic compounds and flavonoids were measured, as well as the in vitro 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenger activity. The gastroprotective effects of the extracts against 60% ethanol/0.3 M HCl were evaluated in mice. …”
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  11. 271
  12. 272

    Composition analysis of acid hydrolysates from Cucurbita moschata Duch. polysaccharides and their effect on oxidative stress resistance of Caenorhabditis elegans by Wen Jiang, Yakun Zhang, Jiangying Zeng, Jing Yao, Aoxue Lu, Zhiyu Fang, Ge Wang, Weimin Wang, Yongjun Zhang

    Published 2023-05-01
    “…The molecular weight of PPe-S-2 was 0.73 kDa detected by high performance liquid chromatography.These studies demonstrated that PPe-S-2 obtained by the acid hydrolysis of PPe had a prominent protective effect to the damage induced by the intracellular free radical generating agents.…”
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  13. 273

    Optimization of Preparation Process and Antioxidant Activity of Kidney Bean-Haskap Composite Fermentation Liquid by Jia WANG, Fangli DING, Yu AN, Xueying ZENG, Zhihui ZHANG, Sinan LI, Kaiyuan XU, Fang ZHOU, Ying WANG, Lu ZHANG, Bingzheng XU, Zekun SUN

    Published 2025-02-01
    “…The antioxidant experiments showed that the DPPH and ABTS+ free radical scavenging rates of composite fermentation liquid initially increased and then decreased slowly, with the highest scavenging values of 98.23% and 93.77%, respectively. …”
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  14. 274

    Immunology and Oxidative Stress in Multiple Sclerosis: Clinical and Basic Approach by Genaro G. Ortiz, Fermín P. Pacheco-Moisés, Oscar K. Bitzer-Quintero, Ana C. Ramírez-Anguiano, Luis J. Flores-Alvarado, Viridiana Ramírez-Ramírez, Miguel A. Macias-Islas, Erandis D. Torres-Sánchez

    Published 2013-01-01
    “…The inflammatory environment in demyelinating lesions leads to the generation of oxygen- and nitrogen-free radicals as well as proinflammatory cytokines which contribute to the development and progression of the disease. …”
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  15. 275

    Inhibitory effect of coriander (Coriandrum sativum L.) extract marinades on the formation of polycyclic aromatic hydrocarbons in roasted duck wings by Yajie Yu, Yiqun Cheng, Chong Wang, Suhong Huang, Yang Lei, Ming Huang, Xibin Zhang

    Published 2023-07-01
    “…The electron spin resonance study indicated a significantly positive correlation between PAH8 and free radical level, suggesting the participation of radicals in PAHs formation. …”
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    Article
  16. 276

    Mechanism of Photocatalytic Degradation of Diclofenac in Water by a Novel Carbon Nitride by LIU Zi’ang, GAO Yifang, LIU Chao, LI Wenjun, LIU Xiaona, LI Bo, QIAN Tianwei

    Published 2025-01-01
    “…PCN (0.20 g/L) can achieve 100% catalytic degradation of DCF (10 mg/L) within 10 min at pH of 5. Free radical quenching experiments confirm that superoxide radical (•O2−) and hydroxyl radical (•OH) are the primary reactive oxygen species. …”
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    Article
  17. 277

    Effect of Different Concentration Methods on Quality Characteristics of Lycium chinense Juice by Jinghui LU, Jing WEN, Huining LAI, Sizhe LÜ, Yujuan XU, Yuanshan YU, Lina CHENG, Jian PENG

    Published 2025-02-01
    “…The total phenols and total flavonoids of Lycium chinense juice concentrated by VC were higher 8.76%~21.40% and 5.41%~13.77% than other groups, respectively. The DPPH free radical scavenging capacity and ferric ion reducing capacity of Lycium chinense juice concentrated by VC owed higher 6.98%~29.77% and 5.97%~26.76% when compared with the other groups, beside lower carotenoids degradation. …”
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    Article
  18. 278

    Alleviating heat stress on broiler breeder hens: Effect of dietary antioxidant supplementation on reproductive performance, egg quality, offspring growth, and antioxidant capacity by Phocharapon Pasri, Chayanan Pukkung, Pascal Mermillod, Nadine Gérard, Orapin Jantasaeng, Merisa Sirisopapong, Supattra Okrathok, Thanatat Thiabching, Sitthipong Rakngam, Kanokwan Kamkajon, Yongcai Zhu, Sutisa Khempaka

    Published 2025-03-01
    “…Either antioxidant source can improve free radical scavenging, reduce lipid peroxidation, upregulate the relative expression of SOD, CAT, and GSH-Px mRNA, and downregulate HSP90 in offspring liver (P < 0.05). …”
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  19. 279

    Fabrication of Nano-Silver Composite Using Amomum longiligulare Fruit Polysaccharides and Their Biological Activities by Lian Y, Ma N, Cheng Q, Luo M, Xu Z, He F, Zhou X, Zhang Y, Jin D, Kong Y, Wang Y, Wei N

    Published 2025-02-01
    “…Finally, the in vitro antioxidant activity, antibacterial activity and anticancer activity of the nano-silver composite were evaluated.Results: Single-factor experiments identified the optimal synthesis conditions for ALP(D)-AgNPs as a reaction time of 180 min, a temperature of 100 °C, and a 10:1 volume ratio of silver nitrate to ALP-D. The free radical scavenging activity of ALP(D)-AgNPs against DPPH and ABTS was significantly enhanced compared with that of ALP-D. …”
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    Article
  20. 280

    Effects of high-pressure homogenization on phenolics profile, antioxidant activity, α-glucosidase inhibitory activity, and insulin resistance of peach juice during simulated gastro... by Yijin Peng, Shenke Bie, Shengbao Cai, Linyan Zhou, Chaofan Guo

    Published 2025-02-01
    “…The bioactivities of peach juice were significantly improved, as evidenced by enhanced antioxidant activity, with DPPH and ABTS free radical scavenging capacities rising by 8.58 % - 26.68 %, and α-glucosidase inhibition improving by 21.40 % - 32.98 %. …”
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    Article