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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Chen, Yi-Chen Lin, Jau-Tien Chen, Ting-Yu Yang, Deng-Jye Chang, Yan-Zin |
| Copyright Year | 2017 |
| Abstract | Scavenging effect of 2,2-diphenyl -2-picrylhydrazyl hydrate (DPPH) radicals, inhibitory effect of low-density lipoprotein (LDL) oxidation, Trolox equivalent antioxidant capacity (TEAC), and phenolic contents were used for the activity-guided separation to identify the effective compounds of Muntingia calabura Linn. fruit. Its ethanol extract with higher phenolic content and antioxidant activities was subjected to silica gel column chromatographic separation, which was sequentially eluted with n-hexane, 10–90% ethyl acetate (EA) in n-hexane, EA, EA/acetone (50/50, v/v), acetone, acetone/methanol (MeOH) (50/50, v/v), and MeOH; fifteen fractions (Fr. 1–15) were obtained. Fractions 13 and 14 with better antioxidant effects were mixed followed by purification of the effective compounds using HPLC. Two major compounds were isolated and identified as gallic acid and 1,2-benzenedicarboxylic acid diisooctyl ester through high performance liquid chromatography-mass spectrometry (HPLC-MS) and nuclear magnetic resonance (NMR) measurements. Their amounts in the fruit were 3.76 and 4.62 mg g−1. This study is the first report to clarify the effective antioxidant compounds of M. calabura Linn. fruit. |
| Starting Page | 1504 |
| Ending Page | 1511 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 20426496 |
| Volume Number | 8 |
| Issue Number | 4 |
| Journal | Food & Function |
| DOI | 10.1039/c7fo00059f |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | TEAC EA Linn Hydrate DPPH Lipoprotein Low-density lipoprotein Trolox equivalent antioxidant capacity TEAC Corporation Muntingia Linn Records Ethanol Antioxidant Silica gel Chromatography Hexane Ethyl acetate Acetone Methanol High-performance liquid chromatography Acid Ester Liquid chromatography\u2013mass spectrometry Nuclear magnetic resonance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Food Science |
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