Determination of edible bird's nest and its products by gas chromatography |
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Authors: | Yu-Qin Y Liang X Hua W Hui-Xing Z Xin-Fang Z Bu-Sen L |
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Institution: | Shanghai Food Industry Research Institute, China. |
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Abstract: | A specific gas chromatographic (GC) detection method for edible bird's nest (EBN) based on identifying the composition of the oligosaccharide chain combined with glycoprotein in EBN is developed. Five monoses (D-mannitose, D-galactose, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, and N-acetyl neuraminate) that constitute the oligosaccharide chain are detected using GC and GC-mass spectrometry techniques; their characteristic GC spectrum can reliably be regarded as EBN's fingerprint. The peak-area ratios in GC spectrum of those five monoses are found to be fixed; therefore, the GC technique developed in this work can conveniently be used to determine various raw EBNs and their products both qualitatively and quantitatively, distinguishing between fake and genuine EBN rapidly. |
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