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Food & Nutrition Science

Antidiabetic components from the hexane extract of red kidney beans (Phaseolus vulgaris L.): isolation and structure determination

ORCID Icon, , , & ORCID Icon
Pages 598-605 | Received 20 Jul 2019, Accepted 06 Nov 2019, Published online: 14 Nov 2019

Figures & data

Table 1. Fatty acid composition and unsaturation ratio in each fraction from GC/MS analysis.

Table 2. Mass number of parent peak and fragment peaks (diacylglycerol and acylium ion) of triacylglycerols (TAGs).

Table 3. Neutral loss and fatty acid loss determined for each diacylglycerol detected.

Figure 1. Fragmentation scheme of triacylglycerol.

Figure 1. Fragmentation scheme of triacylglycerol.

Figure 2. Positive ion mass spectra of fractions A and B. Fraction A contained TAG 1 with spectrum of MS (a) and MS-MS of m/z 873 (b), and fraction B contained TAG 2 with spectrum of MS (c) and MS-MS of m/z 875 (d).

Figure 2. Positive ion mass spectra of fractions A and B. Fraction A contained TAG 1 with spectrum of MS (a) and MS-MS of m/z 873 (b), and fraction B contained TAG 2 with spectrum of MS (c) and MS-MS of m/z 875 (d).

Table 4. Summary of TAG molecular species in the triacylglycerol fraction and IC50 of α-glucosidase inhibition activity.

Supplemental material

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