Results 1 to 10 of about 6,714,456 (251)

Investigation on the mechanism of structural reconstruction of biochars derived from lignin and cellulose during graphitization under high temperature

Biochar, 2023
The structural reconstruction mechanism of lignin and cellulose-derived biochars during direct graphitization under ultra-high temperatures was intensively investigated.
Chao Chen, Kang Sun, Chen Huang, Mengmei Yang, Mengmeng Fan, Ao Wang, Gaoyue Zhang, Bei Li, Jianchun Jiang, Wei Xu, Junli Liu   +10 more
doaj   +1 more source

Isolation, Characterization, Antioxidant Activity, Metal-Chelating Activity, and Protein-Precipitating Capacity of Condensed Tannins from Plum (Prunus salicina) Fruit

Antioxidants, 2022
The type of polymeric condensed tannins from plum fruit (Prunus salicina) (PCT), the degree of polymerization and the distribution of polymers were characterized by MALDI-TOF MS and NMR spectroscopy. The metal-binding capacity of PCT with five metal ions
Liangliang Zhang, He Zhang, Lihua Tang, Xinyu Hu, Man Xu   +4 more
doaj   +1 more source

Construction of the hierarchical porous biochar with an ultrahigh specific surface area for application in high-performance lithium-ion capacitor cathode

Biochar, 2023
Biochar with a highly accessible specific surface area can display a higher performance when it is used as the cathode of lithium-ion capacitors. Facing the complex composition and diversity of biomass precursors, there is a lack of a universally ...
Haotian Zhu, Jiayuan Li, Dichao Wu, Gaoyue Zhang, YunJuan Sun, Ao Wang, Kang Sun   +6 more
doaj   +1 more source

Effect of olive leaf (Olea europaea L.) extract addition to broiler diets on the growth performance, breast meat quality, antioxidant capacity and caecal bacterial populations

Italian Journal of Animal Science, 2022
This study aims to evaluate the effect of olive leaf extract (OLE) on growth performance, breast meat quality, antioxidant capacity and caecal microbiota regulation.
Pujun Xie, Yejun Deng, Lixin Huang, Caihong Zhang   +3 more
doaj   +1 more source

Synthesis, structure analysis and antibacterial activity of N-[5-dehydroabietyl-[1,3,4]thiadiazol-2-yl]-aromatic amide derivatives

Journal of Saudi Chemical Society, 2017
A series of N-[5-dehydroabietyl-[1,3,4]thiadiazol-2-yl]-aromatic amide derivatives were synthesized from dehydroabietic acid. Their structures were characterized by IR, 1H NMR, MS, elemental analysis and single crystal X-ray diffraction.
YanJie Cui, XiaoPing Rao, ShiBin Shang, ZhanQian Song, MingGui Shen, He Liu   +5 more
doaj   +1 more source

Isolation of Sulfuretin and Butin from Rhus verniciflua Stokes Using Medium-pressure Liquid Chromatography and their Tyrosinase Inhibitory Effects

BioResources, 2015
The aim of this study was to separate antityrosinase compounds of the ethyl acetate fraction from Rhus verniciflua Stokes using medium pressure liquid chromatography.
Hongxia Chen, Chengzhang Wang, Jianzhong Ye, Hao Zhou, Ran Tao   +4 more
doaj   +1 more source

Preparation and Characterization of Urushiol Methylene Acetal Derivatives with Various Degrees of Unsaturation in Alkyl Side Chain

International Journal of Polymer Science, 2015
Preparation of urushiol derivatives was carried out in response to the drug industry’s increasing demand for new synthetic anticancer agents. Urushiol methylene acetal derivatives were synthesized in high yields by reaction of urushiol with methylene ...
Chengzhang Wang, Yuanfeng He, Hao Zhou, Ran Tao, Hongxia Chen, Jianzhong Ye, Yusi Zhang   +6 more
doaj   +1 more source

Enzymatic Hydrolysis of Oleuropein from Olea europea (Olive) Leaf Extract and Antioxidant Activities

Molecules, 2015
Oleuropein (OE), the main polyphenol in olive leaf extract, is likely to decompose into hydroxytyrosol (HT) and elenolic acid under the action of light, acid, base, high temperature.
Jiao-Jiao Yuan, Cheng-Zhang Wang, Jian-Zhong Ye, Ran Tao, Yu-Si Zhang   +4 more
doaj   +1 more source

Chemical Constituents and Structural Characterization of Polysaccharides from Four Typical Bamboo Species Leaves

Molecules, 2015
In order to find bamboo leaves with high contents of bioactive polysaccharides, 32 samples were chosen to analyze their polysaccharide content by GC and sulfuric acid-anthrone colorimetric assays.
Cheng-Zhang Wang, Hong-Yu Zhang, Wen-Jun Li, Jian-Zhong Ye   +3 more
doaj   +1 more source

Reduced-Pressure Boiling Extraction of Oleuropein Coupled with Ultrasonication from Olive Leaves (Olea europaea L.)

Advances in Materials Science and Engineering, 2015
Oleuropein was extracted from Frantoio olive leaves using reduced-pressure boiling extraction coupled with ultrasound-assist (URPE). Four important factors, extraction temperature, ultrasonic power, ethanol concentration, and the ratio of solid to liquid,
Pu-jun Xie, Li-xin Huang, Cai-hong Zhang, Feng You, Cheng-zhang Wang, Hao Zhou   +5 more
doaj   +1 more source