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bioRxiv · 10.1101/2020.10.04.325548

Validated B vitamin quantification from lentils by ultra-performance liquid chromatography selected reaction monitoring mass spectrometry

Zhang, H.·De Silva, D.·Dissanayaka, D.·WARKENTIN, T. D.·Vandenberg, A.
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Abstract

A validated method for B vitamin separation and quantification from lentil seeds using ultra-performance liquid chromatography-selected reaction monitoring mass spectrometry (UPLC-SRM MS) was reported. The use of three enzymes (acid phosphatase, {beta}-glucosidase, and rat serum) with a 4 h incubation was sufficient to convert bound B vitamins into their free forms. Twenty B vitamers were selected and a 5-min UPLC-SRM MS method was optimized for rapid analysis. This method was applied to quantify B vitamin concentration during lentil seed germination over a 5-day period. Total B vitamins increased up to 1.5-fold on day 5 (from 39.2 {micro}g/g to 60.6 {micro}g/g of dry weight) comparing with dry seeds. Vitamin B5 (pantothenic acid) was the most abundant B vitamin in both dry seeds (34.2%) and in germinated seeds (17.7%-24.5% of total B vitamins); B8 (biotin) and B12 (cyanocobalamin) were not detected in lentil samples.

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Zhang, H., De Silva, D., Dissanayaka, D., WARKENTIN, T. D., Vandenberg, A.. 2020-10-04. Validated B vitamin quantification from lentils by ultra-performance liquid chromatography selected reaction monitoring mass spectrometry. https://doi.org/10.1101/2020.10.04.325548

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