학술논문

Stable isotope signatures of deuterium, oxygen 18, and carbon 13 (δ2H, δ18O, δ13C) in imported apples available in the markets of Vietnam
Document Type
article
Source
Food Chemistry: X, Vol 17, Iss , Pp 100576- (2023)
Subject
Stable isotope compositions
Apple
Geographical origin
Cryogenic vacuum extraction
Laser spectrometry
CF IRMS
Nutrition. Foods and food supply
TX341-641
Food processing and manufacture
TP368-456
Language
English
ISSN
2590-1575
Abstract
This study examines whether fresh apples from the United States, New Zealand, and China sold in the markets of Vietnam can be distinguished based on the stable isotopic signatures of their water and carbon (δ2H, δ18O, and δ13C). The δ2H and δ18O in apples from the United States were found to average − 100.1 ‰ and − 10.5 ‰ vs VSMOW, respectively, lighter than those from New Zealand and China. In apples from China, the δ13CVBDP averaged − 25.8 ‰, which is more enriched than apples from the United States and New Zealand. A clear distinction was shown in the δ2H, δ18O, and δ13C values in apple samples from the three regions based on the statistical treatment at a 95 % confidence level and p