TY - JOUR
T1 - Sr isotope and trace elements analysis as a potential tool for determining the geographical origin of paprika
AU - Tsuchida, Hidehisa
AU - Nakano, Akimasa
AU - Nakai, Izumi
PY - 2014
Y1 - 2014
N2 - Sr isotope ratio and trace elements (Al, Ti, Mn, Fe, Ni, Cu, Zn, Rb, Sr) of 52 paprika samples (from Japan, Korea, New Zealand and Netherlands) were measured using inductively coupled plasma mass spectrometers of the double-focusing type and the quadrupole type, respectively. The relative standard deviation of the strontium isotope ratio (87Sr/86Sr) for a NIST SRM 987 standard was as small as 0.033% by optimizing the measurement conditions of the device. The obtained data were statistically evaluated so as to investigate whether there was a significant difference between domestic and foreign products cultivated by nourishing solutions. Although domestic products were limited to two cultivated areas, a linear discriminant analysis (LDA) model allowed the discrimination of domestic and foreign products with high (domestic products) accuracy. Consequently, the present study has demonstrated that the production place of paprika cultivated by a nourishing solution can be estimated by the 87Sr/86Sr isotope ratio and the Sr concentrations.
AB - Sr isotope ratio and trace elements (Al, Ti, Mn, Fe, Ni, Cu, Zn, Rb, Sr) of 52 paprika samples (from Japan, Korea, New Zealand and Netherlands) were measured using inductively coupled plasma mass spectrometers of the double-focusing type and the quadrupole type, respectively. The relative standard deviation of the strontium isotope ratio (87Sr/86Sr) for a NIST SRM 987 standard was as small as 0.033% by optimizing the measurement conditions of the device. The obtained data were statistically evaluated so as to investigate whether there was a significant difference between domestic and foreign products cultivated by nourishing solutions. Although domestic products were limited to two cultivated areas, a linear discriminant analysis (LDA) model allowed the discrimination of domestic and foreign products with high (domestic products) accuracy. Consequently, the present study has demonstrated that the production place of paprika cultivated by a nourishing solution can be estimated by the 87Sr/86Sr isotope ratio and the Sr concentrations.
KW - Double-focusing ICP-MS
KW - Paprika
KW - Strontium isotope ratio
KW - Trace elements
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U2 - 10.2116/bunsekikagaku.63.625
DO - 10.2116/bunsekikagaku.63.625
M3 - Article
AN - SCOPUS:84940298861
VL - 63
SP - 625
EP - 628
JO - Bunseki Kagaku
JF - Bunseki Kagaku
SN - 0525-1931
IS - 7
ER -