Fast saccharide mapping method for quality consistency evaluation of commercial xylooligosaccharides collected in China

Autor: Ling-Xiao Chen, Cunwu Chen, Jing Zhao, Shao-Ping Li, Bangxing Han, Yong Deng
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Pharmaceutical Analysis, Vol 11, Iss 3, Pp 284-291 (2021)
Journal of Pharmaceutical Analysis
ISSN: 2095-1779
Popis: Due to the extensive use of xylooligosaccharides (XOS) as functional food ingredients, many inferior goods and even adulterants are generally found in the market, which may pose a health hazard to certain populations. Chromatography method such as high-performance liquid chromatography (HPLC) and high-performance thin-layer chromatography (HPTLC) is traditionally applied for the quality analysis of XOS. However, it is time consuming due to the prolonged separation and pre- or post- derivatization procedure. In this study, a fast saccharide mapping method based on matrix-assisted laser desorption/time-of-flight mass spectrometry (MALDI-TOF-MS) was developed for the quality consistency analysis of 22 batches of XOS collected from different manufacturers in China. The time needed for saccharides analysis using MALDI-MS was less than 30 min for one plate, at least 6 times faster than that by the traditional HPTLC chromatography method. In addition, MALDI-MS possessed higher resolution for XOS with DP4-DP7 based on the difference of m/z, which is hardly separated using HPTLC. The results showed that XOS were present only in samples XY01-XY11, samples XY12-XY14 only consisted of hex oligosaccharides, and samples XY15-XY22 were free of oligosaccharides. These indicate that the quality consistency of XOS products in the China market was poor, which should be carefully investigated.
Highlights • Fast saccharide mapping method was developed based on MADLI-TOF-MS. • Quality consistency of commercial xylooligosaccharides collected in China was evaluated. • Glycosidic linkage analysis was also used for identification of xylooligosaccharides. • Fifty percent of commercial xylooligosaccharides are mislabeled.
Databáze: OpenAIRE