Macroporous Resin-Assisted Enrichment and Isolation of Antioxidant and Cytotoxic Phenolics from Penthorum chinense

2021 ◽  
Author(s):  
Liang Liu ◽  
Xin Luo ◽  
Meijia Zou ◽  
Lu Zhang ◽  
Meng Yin ◽  
...  
Keyword(s):  
Macroporous Resin ◽  
Penthorum Chinense

Kaempferol from Penthorum chinense Pursh suppresses HMGB1/TLR4/NF-κB signaling and NLRP3 inflammasome activation in acetaminophen-induced hepatotoxicity

2020 ◽  
Vol 11 (9) ◽  
pp. 7925-7934
Author(s):  
Yi-Chao Du ◽  
Li Lai ◽  
Hao Zhang ◽  
Fu-Rui Zhong ◽  
Huan-Li Cheng ◽  
...  
Keyword(s):  
Nlrp3 Inflammasome ◽  
Inflammasome Activation ◽  
Nlrp3 Inflammasome Activation ◽  
Penthorum Chinense Pursh ◽  
Penthorum Chinense

In this study, kaempferol (KA) ameliorates APAP-induced hepatotoxicity by activating HO-1/NQO1 and inhibiting HMGB1/TLR4/NF-κB signaling and NLRP3 inflammasome activation.

scholarly journals Bioactivity-Guided Isolation of Phytochemicals from Vaccinium dunalianum Wight and Their Antioxidant and Enzyme Inhibitory Activities

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 2075
Author(s):  
Tianrui Zhao ◽  
Mengxue Sun ◽  
Lingpeng Kong ◽  
Qingwang Xue ◽  
Yudan Wang ◽  
...  
Keyword(s):  
Pancreatic Lipase ◽  
Antioxidant Activities ◽  
Bioactive Components ◽  
Inhibitory Effects ◽  
Macroporous Resin ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ic50 Values ◽  
Trolox Equivalent ◽  
Inhibitory Activities

Vaccinium dunalianum Wight, usually processed as a traditional folk tea beverage, is widely distributed in the southwest of China. The present study aimed to investigate the antioxidant, α-glucosidase and pancreatic lipase inhibitory activities of V.dunalianum extract and isolate the bioactive components. In this study, the crude extract (CE) from the buds of V. dunalianum was prepared by the ultrasound-assisted extraction method in 70% methanol and then purified with macroporous resin D101 to obtain the purified extract (PM). Five fractions (Fr. A–E) were further obtained by MPLC column (RP-C18). Bioactivity assays revealed that Fr. B with 40% methanol and Fr. D with 80% methanol had better antioxidant with 0.48 ± 0.03 and 0.62 ± 0.01 nM Trolox equivalent (TE)/mg extract for DPPH, 0.87 ± 0.02 and 1.58 ± 0.02 nM TE/mg extract for FRAP, 14.42 ± 0.41 and 19.25 ± 0.23 nM TE/mg extract for ABTS, and enzyme inhibitory effects with IC50 values of 95.21 ± 2.21 and 74.55 ± 3.85 for α-glucosidase, and 142.53 ± 11.45 and 128.76 ± 13.85 µg/mL for pancreatic lipase. Multivariate analysis indicated that the TPC and TFC were positively related to the antioxidant activities. Further phytochemical purification led to the isolation of ten compounds (1–10). 6-O-Caffeoylarbutin (7) showed significant inhibitory effects on α-glucosidase and pancreatic lipase enzymes with values of 38.38 ± 1.84 and 97.56 ± 7.53 µg/mL, and had the highest antioxidant capacity compared to the other compounds.

Macroporous resin extraction of PHNQs from Evechinus chloroticus sea urchin and their in vitro antioxidant, anti-bacterial and in silico anti-inflammatory activities

LWT ◽  
2020 ◽  
Vol 131 ◽  
pp. 109817
Author(s):  
Yakun Hou ◽  
Alan Carne ◽  
Michelle McConnell ◽  
Sonya Mros ◽  
Adnan A. Bekhit ◽  
...  
Keyword(s):  
Sea Urchin ◽  
In Silico ◽  
Macroporous Resin ◽  
Anti Inflammatory

Isolation of brefeldin A from Eupenicillium brefeldianum broth using macroporous resin adsorption chromatography

2012 ◽  
Vol 895-896 ◽  
pp. 146-153 ◽  
Author(s):  
Ya-Jun Wang ◽  
Ye-Fei Wu ◽  
Feng Xue ◽  
Zhi-Xian Wu ◽  
Ya-Ping Xue ◽  
...  
Keyword(s):  
Brefeldin A ◽  
Adsorption Chromatography ◽  
Macroporous Resin ◽  
Resin Adsorption ◽  
Eupenicillium Brefeldianum
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