Single-sided and semisingle-sided NMR sensors for highly diffusive samples:: Application to bottled beverages

被引:9
作者
Stork, Holger [1 ]
Gaedke, Achim [1 ]
Nestle, Nikolaus [1 ]
机构
[1] Tech Univ Darmstadt, Inst Condensed Matter Phys, D-64289 Darmstadt, Germany
关键词
TD-NMR; relaxation; diffusion; single-sided NMR; beverages; oxygenated table water;
D O I
10.1021/jf060431m
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Single-sided NMR sensors such as the NMR-MOUSE have been very successfully implemented for quality control applications in the rubber and polymer industries. More recently, single-sided NMR was also applied in characterization of the fat components in foods. Both industrial polymers and the fat components in food exhibit relatively low self-diffusion coefficients on the order of 5 x 10(-11) m(2)/s or lower. The application of conventional single-sided NMR to highly mobile, watery phases in foods and beverages is hampered by the strong magnetic field gradient present in standard single-sided NMR devices. In this contribution, we present both a single-sided NMR sensor with a reduced magnetic field gradient and another ("semisingle-sided") sensor design with an open sample bay using a single-sided RF coil. The latter design allows much better sensitivity without sacrificing the necessary open access needed for measurements on entire food packages such as bottles. As a first application, the sensors were used for determining the oxygen content in bottles with superoxygenated table water.
引用
收藏
页码:5247 / 5252
页数:6
相关论文
共 20 条
[1]  
Cabrera-Vique C, 2000, AM J ENOL VITICULT, V51, P103
[2]   Mobility and distribution of water in cassava and potato starches by 1H and 2H NMR [J].
Chatakanonda, P ;
Dickinson, LC ;
Chinachoti, P .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2003, 51 (25) :7445-7449
[3]   NMR-baking and multivariate prediction of instrumental texture parameters in bread [J].
Engelsen, SB ;
Jensen, MK ;
Pedersen, HT ;
Norgaard, L ;
Munck, L .
JOURNAL OF CEREAL SCIENCE, 2001, 33 (01) :59-69
[4]  
Fukushima E., 1999, US Patent, Patent No. [6489872, 6,489,872]
[5]   Analysis of polymer materials by surface NMR via the MOUSE [J].
Guthausen, A ;
Zimmer, G ;
Blümler, P ;
Blümich, B .
JOURNAL OF MAGNETIC RESONANCE, 1998, 130 (01) :1-7
[6]   SPIN ECHOES [J].
HAHN, EL .
PHYSICAL REVIEW, 1950, 80 (04) :580-594
[7]   BLUEBERRY JUICE - PRELIMINARY EVALUATION AS AN ORAL CONTRAST AGENT IN GASTROINTESTINAL MR-IMAGING [J].
HIRAISHI, K ;
NARABAYASHI, I ;
FUJITA, O ;
YAMAMOTO, K ;
SAGAMI, A ;
HISADA, Y ;
SAIKA, Y ;
ADACHI, I ;
HASEGAWA, H .
RADIOLOGY, 1995, 194 (01) :119-123
[8]  
Kleinberg R. L., 1996, ENCY NUCL MAGNETIC R, P4960
[9]  
LAMBELET P, 1983, LEBENSM WISS TECHNOL, V16, P200
[10]   1H nuclear magnetic resonance relaxometry study of water state in milk protein mixtures [J].
Le Dean, A ;
Mariette, F ;
Marin, M .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2004, 52 (17) :5449-5455