期刊
MOLECULES
卷 15, 期 12, 页码 8543-8552出版社
MDPI
DOI: 10.3390/molecules15128543
关键词
Pourouma cecropiifolia Martius; Amazon grape; anthocyanins; polyphenols; LC-MS
资金
- Research Chairs of Canada
- Natural Sciences and Engineering Research Council of Canada (NSERC)
The phenolic profile of Amazon grape fruit (Pourouma cecropiifolia Martius) was investigated by high-performance liquid chromatography-electrospray ionization mass spectrometry (HPLC-ESI-MS/MS). For this purpose, suitable extraction and liquid chromatographic methods were developed. Anthocyanins, flavonols and chlorogenic acids were found mainly in the peel. Besides the main anthocyanins, i.e. delphinidin 3-glucoside, cyanidin 3-glucoside and cyanidin 3-(6 ''-malonyl) glucoside, several minor anthocyanins were identified in the peel. Among these, cyanidin 3,5-diglucoside, delphinidin 3-galactoside, cyanidin 3-rutinoside, cyanidin 3-(3 ''-malonyl) glucoside, malvidin 3-glucoside, pelargonidin 3-glucoside, peonidin 3-glucoside and petunidin 3-glucoside were characterized on the basis of their fragmentation patterns in MS/MS experiments. The total anthocyanin content in the peel was 420.26 +/- 3.07 mg kg(-1) fresh weight. The pulp contained mainly 5-O-caffeoylquinic acid (210.39 +/- 3.43 mg kg(-1) fresh weight). Rutin was the predominant flavonol found in Amazon grape (peel 155.45 +/- 2.06 mg kg(-1) fresh weight and pulp 2.64 +/- 1.21 mg kg(-1) fresh weight). Total polyphenols content was higher in the peel than in the pulp.
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