| Autor: |
LUO Jingyi, WU Zhuying, FENG Di, WANG Daobing, FU Yanmei, AN Hongmei, YANG Qingshan, LIU Yang, YUE Hongwei, ZHONG Qiding, XIE Zhoujie |
| Předmět: |
|
| Zdroj: |
Food & Fermentation Industries; 11/25/2024, Vol. 50 Issue 22, p334-338, 5p |
| Abstrakt: |
This study aimed to investigate the feasibility of the application of stable hydrogen isotopes in the field of lycopene adulteration detection. The method using the technique of temperature conversion/elementary analyzer-stable isotope ratio mass spectrometers (TC/EA-IRMS) was developed for the determination of stable hydrogen isotopes of lycopene from different sources. It was verified that the purity of lycopene samples was ≥94. 14% after pretreatment, and the pretreatment process would not change the determination of lycopene hydrogen stable isotope ratio. The standard deviation of the δ#178; H value of the method was 1. 99‰ for repeatability and the standard deviation of the reproducibility was less than 3‰. The stable hydrogen isotope ratios of 13 lycopene raw materials and lycopene standards were determined, the δ#178; H values of the synthetic lycopene ranged from - 29. 21‰ - - 56. 22‰, the δ#178; H values of the lycopene from natural sources ranged from - 225. 76 ‰ - - 256. 98 ‰, and the δ² H values of the lycopene from fermentation sources ranged from - 81. 35 ‰ - - 141. 24 ‰. The stabilized hydrogen isotope ratios of the three are significantly different, and the method can be used for the identification of lycopene from different sources. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
