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Biosensors (Basel)

Title:		An Impedimetric Biosensor for Detection of Volatile Organic Compounds in Food
Author(s):		Calabrese A; Battistoni P; Ceylan S; Zeni L; Capo A; Varriale A; D'Auria S; Staiano M;
Address:		"Institute of Food Science, CNR Italy, 83100 Avellino, Italy. URT-ISA, CNR at Department of Biology, University of Naples Federico II, 80126 Napoli, Italy. Department of Engineering, University of Campania Luigi Vanvitelli, 81031 Aversa, Italy. Allinit s.r.l., 84084 Fisciano, Italy. Department of Biology, Agriculture, and Food Science, National Research Council of Italy (CNR-DISBA), 00185 Rome, Italy"
Journal Title:		Biosensors (Basel)
Year:		2023
Volume:		20230304
Issue:		3
Page Number:		-
DOI:		10.3390/bios13030341
ISSN/ISBN:		2079-6374 (Electronic) 2079-6374 (Linking)
Abstract:		"The demand for a wide choice of food that is safe and palatable increases every day. Consumers do not accept off-flavors that have atypical odors resulting from internal deterioration or contamination by substances alien to the food. Odor response depends on the volatile organic compounds (VOCs), and their detection can provide information about food quality. Gas chromatography/mass spectrometry is the most powerful method available for the detection of VOC. However, it is laborious, costly, and requires the presence of a trained operator. To develop a faster analytic tool, we designed a non-Faradaic impedimetric biosensor for monitoring the presence of VOCs involved in food spoilage. The biosensor is based on the use of the pig odorant-binding protein (pOBP) as the molecular recognition element. We evaluated the affinity of pOBP for three different volatile organic compounds (1-octen-3-ol, trans-2-hexen-1-ol, and hexanal) related to food spoilage. We developed an electrochemical biosensor conducting impedimetric measurements in liquid and air samples. The impedance changes allowed us to detect each VOC sample at a minimum concentration of 0.1 muM"
Keywords:		Animals Swine *Volatile Organic Compounds/analysis Gas Chromatography-Mass Spectrometry/methods *Biosensing Techniques Odorants/analysis Food 1-octen-3-ol biosensors food safety hexanal odorant-binding protein (OBP) trans-2-hexen-1-ol volatile organic com;
Notes:		"MedlineCalabrese, Alessia Battistoni, Pietro Ceylan, Seniz Zeni, Luigi Capo, Alessandro Varriale, Antonio D'Auria, Sabato Staiano, Maria eng Switzerland 2023/03/30 Biosensors (Basel). 2023 Mar 4; 13(3):341. doi: 10.3390/bios13030341"