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Cui J, Li Y, Wang Q, Li J, Ou Y, Wang J, Wang W. Production, purification and analysis of the isomalto-oligosaccharides from Chinese chestnut (Castanea mollissima Blume) and the prebiotics effects of them on proliferation of Lactobacillus. FOOD AND BIOPRODUCTS PROCESSING 2017. [DOI: 10.1016/j.fbp.2017.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Li J, Dong J, Ouyang J, Cui J, Chen Y, Wang F, Wang J. Synthesis, characterization, solubilization, cytotoxicity and antioxidant activity of aminomethylated dihydroquercetin. MEDCHEMCOMM 2017; 8:353-363. [PMID: 30108751 DOI: 10.1039/c6md00496b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/30/2016] [Indexed: 01/28/2023]
Abstract
A dihydroquercetin derivative (DHQA) was prepared through aminomethylation to overcome the low water solubility and bioavailability of dihydroquercetin (DHQ). DHQA was characterized through HPLC, nuclear magnetic resonance, scanning electron microscopy, X-ray diffraction, and thermogravimetric analyses. DHQA was converted into the amorphous form, but the major structure of DHQ remained unchanged. Solubilization and dissolution tests were also performed. Results showed that the solubility and dissolution rates of DHQA were approximately 16.28 and 6.31 times higher than those of DHQ, respectively. The MTT assay of DHQA showed a non-toxic effect against non-cancerous HEK-293T cells (EC50 = 820.00 μM), and potent inhibitory activity against cancerous Hela cells (EC50 = 138.17 μM). Finally, the antioxidant activity of DHQA was confirmed in vitro through DPPH and ABTS radical scavenging activity assays. DHQA displayed high antioxidant activities with low IC50 values (0.043 and 0.042 mM, respectively). Reducing Fe3+ power assay indicated that DHQA exhibited higher reducing power than DHQ and ascorbic acid.
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Affiliation(s)
- Jianxia Li
- School of Nature Conservation , Beijing Forestry University , Beijing 100083 , P.R. China
| | - Jieqiong Dong
- College of Biological Sciences and Technology , Beijing Key Laboratory of Forest Food Process and Safety , Beijing Forestry University , No. 35 Tsinghua East Road, Haidian District , Beijing 100083 , P.R. China . ; ; Tel: +8601062336700
| | - Jie Ouyang
- College of Biological Sciences and Technology , Beijing Key Laboratory of Forest Food Process and Safety , Beijing Forestry University , No. 35 Tsinghua East Road, Haidian District , Beijing 100083 , P.R. China . ; ; Tel: +8601062336700
| | - Jie Cui
- Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences , Beijing 100193 , P.R. China
| | - Yuan Chen
- College of Biological Sciences and Technology , Beijing Key Laboratory of Forest Food Process and Safety , Beijing Forestry University , No. 35 Tsinghua East Road, Haidian District , Beijing 100083 , P.R. China . ; ; Tel: +8601062336700
| | - Fengjun Wang
- College of Biological Sciences and Technology , Beijing Key Laboratory of Forest Food Process and Safety , Beijing Forestry University , No. 35 Tsinghua East Road, Haidian District , Beijing 100083 , P.R. China . ; ; Tel: +8601062336700
| | - Jianzhong Wang
- College of Biological Sciences and Technology , Beijing Key Laboratory of Forest Food Process and Safety , Beijing Forestry University , No. 35 Tsinghua East Road, Haidian District , Beijing 100083 , P.R. China . ; ; Tel: +8601062336700
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