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Tian Y, Du H, Wang L, Li S, Zhang L, Zhang L. Nitrite Scavenging and Inhibition of N-Nitrosamines Formation by Phenolic Extracts From Diospyros lotus L. Leaves and Active Ingredients. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20961186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Diospyros lotus L. leaves are used as a functional tea and folk medicine in several Asian countries. This study aimed to evaluate the effects of phenolic extracts of the leaves on scavenging nitrite and inhibiting N-nitrosamines (NAs) formation and to determine the active ingredients responsible for these effects. Of the 7 fractions (Fr1-Fr7) prepared from the extract of D. lotus leaves, Fr5 contained the highest phenolic content and exhibited the strongest activity. Five active ingredients of Fr5 were discovered, and 4 of them were identified as myricitrin (Mytr), myricetin (Myt), myricetin-3- O-β-d-glucoside (Myt-Glc), and myricetin-3- O-β-d-galactoside (Myt-Gal). The content of Mytr was much higher than those of the other 3 ingredients, both in Fr5 and extracts of D. lotus leaves. Finally, Mytr and Myt were proved to have stronger activities by the 1,1-diphenyl-2-trinitrophenyl hydrazine scavenging, nitrite scavenging, and inhibition of NAs formation assays. These results indicated that Mytr was the main active ingredient of D. lotus leaves. Myt, Mytr, and Fr5 from the leaves could be used as natural agents for antioxidant, nitrite scavenging, and inhibition of NAs formation in food and the human body.
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Affiliation(s)
- YanHua Tian
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
- Department of Food Engineering, Shanxi Pharmaceutical Vocational College, Taiyuan, Shanxi Province, P. R. China
| | - HuiZhi Du
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - Li Wang
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - ShiFei Li
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - Lu Zhang
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - LiWei Zhang
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
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Effects of picking time and drying methods on contents of eight flavonoids and antioxidant activity of leaves of Diospyros lotus L. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-020-00396-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Seo JY, Kim JS, Kim KL. Anti-inflammatory Effects and Innate Immunity Suppression by Fritillaria ussuriensis Extracts. ACTA ACUST UNITED AC 2018. [DOI: 10.20402/ajbc.2017.0145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Cho BO, Che DN, Yin HH, Shin JY, Jang SI. Diospyros lotus leaf and grapefruit stem extract synergistically ameliorate atopic dermatitis-like skin lesion in mice by suppressing infiltration of mast cells in skin lesions. Biomed Pharmacother 2017; 89:819-826. [DOI: 10.1016/j.biopha.2017.01.145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/23/2017] [Accepted: 01/26/2017] [Indexed: 10/20/2022] Open
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Cho BO, Yin HH, Fang CZ, Kim SJ, Jeong SI, Jang SI. Hepatoprotective effect of Diospyros lotus leaf extract against acetaminophen-induced acute liver injury in mice. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0294-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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