Research Article
Vacuum Concentration Improves the Quality and Antioxidant Capacity of Pear Paste
Table 2
Response characteristics of electronic nose sensor PEN3.
| Number | Model | Sensors | Response characteristics |
| 1 | W1C | Aromatic | Sensitive to aromatic compounds | 2 | W5S | Broad range | Sensitive to nitrogen oxides | 3 | W3C | Aromatic | Sensitive to ammonia and aromatic compounds | 4 | W6S | Hydrogen | Sensitive to hydrogen | 5 | W5C | Aliph-arom | Sensitive to alkane and aromatic compounds | 6 | W1S | Broad-methane | Sensitive to methane | 7 | W1W | Sulphur-organic | Sensitive to sulfides and terpenes | 8 | W2S | Broad-alcohol | Sensitive to alcohols and some aromatic compounds | 9 | W2W | Sulphachlor | Sensitive to organic sulfides and aromatic compounds | 10 | W3S | Methane-aliph | Sensitive to alkanes |
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