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The Elemental Fingerprints of Different Types of Whisky as Determined by ICP-OES and ICP-MS Techniques in Relation to Their Type, Age, and Origin
被引:10
|作者:
Gajek, Magdalena
[1
]
Pawlaczyk, Aleksandra
[1
]
Jozwik, Krzysztof
[2
]
Szynkowska-Jozwik, Malgorzata Iwona
[1
]
机构:
[1] Lodz Univ Technol, Fac Chem, Inst Gen & Ecol Chem, Zeromskiego 116, PL-90543 Lodz, Poland
[2] Lodz Univ Technol, Fac Mech Engn, Inst Turbomachinery, Wolczanska 217-221, PL-93005 Lodz, Poland
来源:
关键词:
whisky;
elemental analysis;
ICP-MS;
ICP-OES;
CV-AAS;
spirits;
PCA;
metals;
SULFUR-COMPOUNDS;
SCOTCH WHISKEY;
AUTHENTICATION;
BEVERAGES;
D O I:
10.3390/foods11111616
中图分类号:
TS2 [食品工业];
学科分类号:
0832 ;
摘要:
A total of 170 samples of whisky from 11 countries were analysed in terms of their elemental profiles. The levels of 31 elements were determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS): Ag, Al, B, Ba, Be, Bi, Cd, Co, Cr, Cu, Li, Mn, Mo, Ni, Pb, Sb, Sn, Sr, Te, Tl, U, and V, Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) Ca, Fe, K, Mg, P, S, Ti, and Zn and Cold Vapor-Atomic Absorption (CV-AAS): Hg techniques in those alcoholic samples. A comparative analysis of elemental profiles was made on the basis of the content of chosen elements with regard to selected parameters: country of origin, type of whisky (single malt and blended) and age of products. One of the elements which clearly distinguishes single malt and blended types of whisky is copper. Single malt Scotch whisky had a uniform concentration of copper, which is significantly higher for all malt whisky samples when compared with the blended type. Analysis of samples from the USA (n = 26) and Ireland (n = 15) clearly revealed that the objects represented by the same product but originating from independent bottles (e.g., JB, JDG, BUS brands) show common elemental profiles. On the other hand, comparative analysis of Scotch whisky with respect to aging time revealed that the longer the alcohol was aged, (i.e., the longer it stayed in the barrel), the higher the content of Cu and Mn that was recorded.
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页数:18
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