{"title":"New Terpenoids and Lignans from <i>Phyllanthus acidus</i> Fruits with Antioxidant Activity.","authors":"Ying Xin, Jia Xu, Na Li, Li-Ying Yang, Hong-Tao Zhu, Ying-Jun Zhang","doi":"10.3390/foods14030452","DOIUrl":null,"url":null,"abstract":"<p><p>The fruits of <i>Phyllanthus acidus</i>, rich in various secondary metabolites and possessing significant antioxidant activity, have been consumed widely by many Southeast Asian people, including the Thai, Vietnamese, Burmese, Laotians, and Cambodians. An extensive investigation of the secondary metabolites of the fruits resulted in our obtaining 17 compounds, including four new compounds (<b>1</b>-<b>4</b>). The absolute configurations of <b>1</b>, <b>3</b>, and <b>4</b> were determined by comparing their experimental electronic circular dichroism (ECD) spectra with both reference data and computed ECD profiles. At a concentration of 40μM, terpenoids (<b>1</b> and <b>5</b>-<b>9</b>) showed no cytotoxic activity against five strains of human tumor cells and one of normal cells. Notably, the known lignan <b>13</b> and phenylpropanoid <b>15</b> showed obvious ABTS<sup>+</sup> radical scavenging activities with IC<sub>50</sub> values of 203.7 and 232.9 μM, which have a comparable impact to the positive control, Trolox (IC<sub>50</sub> = 176.5 ± 2.0 μM). The results indicated that <i>P. acidus</i> fruits could be a promising sources of antioxidant food supplement.</p>","PeriodicalId":12386,"journal":{"name":"Foods","volume":"14 3","pages":""},"PeriodicalIF":4.7000,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11816990/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Foods","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.3390/foods14030452","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The fruits of Phyllanthus acidus, rich in various secondary metabolites and possessing significant antioxidant activity, have been consumed widely by many Southeast Asian people, including the Thai, Vietnamese, Burmese, Laotians, and Cambodians. An extensive investigation of the secondary metabolites of the fruits resulted in our obtaining 17 compounds, including four new compounds (1-4). The absolute configurations of 1, 3, and 4 were determined by comparing their experimental electronic circular dichroism (ECD) spectra with both reference data and computed ECD profiles. At a concentration of 40μM, terpenoids (1 and 5-9) showed no cytotoxic activity against five strains of human tumor cells and one of normal cells. Notably, the known lignan 13 and phenylpropanoid 15 showed obvious ABTS+ radical scavenging activities with IC50 values of 203.7 and 232.9 μM, which have a comparable impact to the positive control, Trolox (IC50 = 176.5 ± 2.0 μM). The results indicated that P. acidus fruits could be a promising sources of antioxidant food supplement.
期刊介绍:
Foods (ISSN 2304-8158) is an international, peer-reviewed scientific open access journal which provides an advanced forum for studies related to all aspects of food research. It publishes reviews, regular research papers and short communications. Our aim is to encourage scientists, researchers, and other food professionals to publish their experimental and theoretical results in as much detail as possible or share their knowledge with as much readers unlimitedly as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. There are, in addition, unique features of this journal:
manuscripts regarding research proposals and research ideas will be particularly welcomed
electronic files or software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material
we also accept manuscripts communicating to a broader audience with regard to research projects financed with public funds