PMID- 31717824
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200928
IS  - 2072-666X (Print)
IS  - 2072-666X (Electronic)
IS  - 2072-666X (Linking)
VI  - 10
IP  - 11
DP  - 2019 Oct 26
TI  - Discrimination of Red Wines with a Gas-Sensor Array Based on a 
      Surface-Acoustic-Wave Technique.
LID - 10.3390/mi10110725 [doi]
LID - 725
AB  - We applied a thermal-desorption gas-chromatograph mass-spectrometer (TD-GC-MS) 
      system to identify the marker volatile organic compounds (VOCs) in the aroma of 
      red wine. After obtaining the marker VOC, we utilized surface acoustic waves 
      (SAWs) to develop a highly sensitive sensing system as 'electronic nose' to 
      detect these marker VOC. The SAW chips were fabricated on a LiNbO(3) substrate 
      with a lithographic process. We coated sensing polymers on the sensing area to 
      adsorb the marker VOC in a sample gas. The adsorption of the marker VOC altered 
      the velocity of the SAW according to a mass-loading effect, causing a frequency 
      decrease. This experiment was conducted with wines of three grape 
      varieties-cabernet sauvignon, merlot and black queen. According to the results of 
      TD-GC-MS, the King brand of red wine is likely to have unique VOC, which are 
      2-pentanone, dimethyl disulfide, 2-methylpropyl acetate and 2-pentanol; Blue 
      Nun-1 probably has a special VOC such as 2,3-butanedione. We hence used a SAW 
      sensor array to detect the aroma of red wines and to distinguish their components 
      by their frequency shift. The results show that the use of polyvinyl butyral 
      (PVB) as a detecting material can distinguish Blue Nun-2 from the others and the 
      use of polyvinyl alcohol (PVA) can distinguish King from the others. We conducted 
      random tests to prove the accuracy and the reliability of our SAW sensors.
FAU - Lin, Min-Han
AU  - Lin MH
AD  - Institute of Nanoengineering and Microsystems, National Tsing Hua University, 
      Hsinchu 30013, Taiwan.
FAU - Ke, Ling-Yi
AU  - Ke LY
AD  - Department of Power Mechanical Engineering, National Tsing Hua University, 
      Hsinchu 30013, Taiwan.
FAU - Yao, Da-Jeng
AU  - Yao DJ
AUID- ORCID: 0000-0001-6631-780X
AD  - Institute of Nanoengineering and Microsystems, National Tsing Hua University, 
      Hsinchu 30013, Taiwan.
AD  - Department of Power Mechanical Engineering, National Tsing Hua University, 
      Hsinchu 30013, Taiwan.
LA  - eng
GR  - MOST 105-2221-E-007-062-MY3/Ministry of Science and Technology, Taiwan/
PT  - Journal Article
DEP - 20191026
PL  - Switzerland
TA  - Micromachines (Basel)
JT  - Micromachines
JID - 101640903
PMC - PMC6915528
OTO - NOTNLM
OT  - aroma of red wines
OT  - polymers
OT  - surface acoustic wave
COIS- The authors declare no conflict of interest.
EDAT- 2019/11/14 06:00
MHDA- 2019/11/14 06:01
PMCR- 2019/10/26
CRDT- 2019/11/14 06:00
PHST- 2019/09/23 00:00 [received]
PHST- 2019/10/17 00:00 [revised]
PHST- 2019/10/23 00:00 [accepted]
PHST- 2019/11/14 06:00 [entrez]
PHST- 2019/11/14 06:00 [pubmed]
PHST- 2019/11/14 06:01 [medline]
PHST- 2019/10/26 00:00 [pmc-release]
AID - mi10110725 [pii]
AID - micromachines-10-00725 [pii]
AID - 10.3390/mi10110725 [doi]
PST - epublish
SO  - Micromachines (Basel). 2019 Oct 26;10(11):725. doi: 10.3390/mi10110725.