Journal
ACS SENSORS
Volume 7, Issue 8, Pages 2104-2131Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.2c00639
Keywords
volatile amines; biogenic amines; chemiresistive sensors; optical sensors; RFID; wireless sensors; electronic nose; optoelectronic nose; food evaluation
Funding
- FAPESP [2016/23793-4, 2017/10582-8, 2017/12174-4, 2018/22214-6]
- CNPq, MCTI-SisNano [CNPq/402.287/2013-4]
- CAPES [001]
- US National Science Foundation [DMR-1809740, DMR-2207299]
- Rede Agronano (EMBRAPA) from Brazil
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The increasing demand for food production has led to the development of sensitive and reliable analysis methods for optimizing storage and distribution and ensuring food safety. In this review, the advances in volatile amine sensors for food quality monitoring over the past decade are examined. The role of volatile and biogenic amines as food quality indicators is discussed, and a comprehensive overview of different amine gas sensors is provided, including their transduction methods, operation strategies, and materials employed. Challenges and future opportunities in the development of new amine sensors are also presented.
The increasing demand for food production has necessitated the development of sensitive and reliable methods of analysis, which allow for the optimization of storage and distribution while ensuring food safety. Methods to quantify and monitor volatile and biogenic amines are key to minimizing the waste of high-protein foods and to enable the safe consumption of fresh products. Novel materials and device designs have allowed the development of portable and reliable sensors that make use of different transduction methods for amine detection and food quality monitoring. Herein, we review the past decade's advances in volatile amine sensors for food quality monitoring. First, the role of volatile and biogenic amines as a food-quality index is presented. Moreover, a comprehensive overview of the distinct amine gas sensors is provided according to the transduction method, operation strategies, and distinct materials (e.g., metal oxide semiconductors, conjugated polymers, carbon nanotubes, graphene and its derivatives, transition metal dichalcogenides, metal organic frameworks, MXenes, quantum dots, and dyes, among others) employed in each case. These include chemoresistive, fluorometric, colorimetric, and microgravimetric sensors. Emphasis is also given to sensor arrays that record the food quality fingerprints and wireless devices that operate as radiofrequency identification (RFID) tags. Finally, challenges and future opportunities on the development of new amine sensors are presented aiming to encourage further research and technological development of reliable, integrated, and remotely accessible devices for food-quality monitoring.
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