Abstract
Legumes are global staple foods with multiple human health properties that merit detailed composition analysis in cooked forms. This study analyzed cowpea [Vigna unguiculata] (three varieties: Dagbantuya, Sangyi, and Tukara), pigeon pea [Cajanus cajan], and common bean [Phaseolus vulgaris] using two distinct ultra-performance liquid chromatography mass spectrometry (UPLC-MS) platforms and analytical workflows. Comparisons between cowpea and pigeon pea consumed in Ghana, and common bean (navy bean) from USA, revealed 75 metabolites that differentiated cowpeas. Metabolite fold-change comparisons resulted in 142 metabolites with significantly higher abundance in cowpea, and 154 higher in abundance from pigeon pea. 3-(all-trans-nonaprenyl)benzene-1,2-diol, N-tetracosanoylphytosphingosine, and sitoindoside II are novel identifications in cowpea, with notably higher abundance than other legumes tested. Cowpea variety specific markers were tonkinelin (Dagbantuya), pheophytin A (Sangyi), and linoleoyl ethanolamide (Tukara). This study identified novel cowpea and pigeon pea food metabolites that warrant continued investigation as bioactive food components following consumption in people.
Original language | English |
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Article number | 100087 |
Journal | Food Chemistry: Molecular Sciences |
Volume | 4 |
DOIs | |
State | Published - Jul 30 2022 |
Keywords
- 3-(all-trans-nonaprenyl)benzene-1,2-diol (PubChem CID: 25245248)
- Cajanus cajan
- Legumes
- Linoleoyl ethanolamide (PubChem CID: 5283446)
- N-tetracosanoylphytosphingosine (PubChem CID: 14653935)
- Non-targeted metabolomics
- Phaseolus vulgaris
- Pheophytin A (PubChem CID: 135398712)
- Phytochemicals
- Pipecolic acid (PubChem CID: 849)
- Piptamine (PubChem CID: 10664275)
- Sitoindoside II (PubChem CID: 131751526)
- Tonkinelin (PubChem CID: 73088078)
- UPLC-MS
- Vigna unguiculata