Monitoring Aroma Release in Gummy Candies During The Storage Using Electronic Nose

Ballen, Sandra Cristina; Graboski, Adriana Márcia; Manzoli, Alexandra; Steffens, Juliana; Steffens, Clarice

doi:10.1007/s12161-019-01496-6

Cited by 16 publications

(5 citation statements)

References 37 publications

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“…The sensitive layers of PANI/MWCNT and PANI/GO were obtained in their doped form with HCl. For the study with CSA and DBSA dopants, the sensing layers were first undoped by immersion in 0.1 M ammonium hydroxide solution (Sigma-Aldrich) during 30 s and doped in CSA and DBSA solution for 90 s. The dopants were chosen based on several works of the literature that report their use on polymeric gas sensors with good results in the detection of volatile compounds. ,− …”

Section: Methodsmentioning

confidence: 99%

“…The distinct electrical response is obtained through the surface modification with ultrathin films, a sensitive layer. Conductive polymers, such as polyaniline (PANI), have been used as a sensitive layer in liquid and gas sensors because of the high sensitivity, stability, reversibility, short response time, ease of synthesis, and low cost. − Carbon-based nanomaterials such as graphene oxide (GO) and multi-walled carbon nanotube (MWCNT) have also been widely employed to improve the performance, conductivity, and mechanical and thermal properties of sensitive layers. − Moreover, PANI conjugation with MWCNTs and/or GO significantly enhances the electrocatalytic activity of the resultant electrode, with faster electron transfer and effective carrier collection.…”

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confidence: 99%

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Electronic Nose Based on Carbon Nanocomposite Sensors for Clove Essential Oil Detection

et al. 2020

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This work describes the development of an electronic nose (e-nose) based on carbon nanocomposites to detect clove essential oil (CEO), eugenol (EUG), and eugenyl acetate (EUG.ACET). Our e-nose system comprises an array of six sensing units modified with nanocomposites of poly(aniline), graphene oxide, and multiwalled carbon nanotubes doped with different acids, dodecyl benzene sulfonic acid, camphorsulfonic acid, and hydrochloric acid. The e-nose presented an excellent analytical performance to the detected analytes (CEO, EUG, and EUG.ACET) with high sensitivity and reversibility. The limit of detection was lower than 1.045 ppb, with response time (<13.26 s) and recovery time (<106.29 s) and low hysteresis. Information visualization methods (PCA and IDMAP) demonstrated that the e-nose was efficient to discriminate the different concentrations of analyte volatile oil compounds. PM-IRRAS measurements suggest that the doping mechanism of molecular architectures is composed of a change in the oscillation energy of the characteristic dipoles and changes in the molecular orientation dipoles CC and CO at 1615 and 1740 cm −1 , respectively. The experimental results indicate that our e-nose system is promising for a rapid analysis method to monitor the quality of essential oils.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

Electronic Nose Based on Carbon Nanocomposite Sensors for Clove Essential Oil Detection

et al. 2020

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“…Another similar study in situ involved the polymerisation of PANI onto a graphite-interdigitated electrode to monitor the release of aromas (apple, strawberry, and grape) from gummy candies. It showed that an electronic nose with camphor sulfonic acid (CSA)-doped PANI had the best sensitivity towards artificial aromas [ 174 ]. On the other hand, a PANI/functionalised single-wall carbon nanotube was developed into an electronic nose for the detection of ammonia vapours to monitor the freshness of beef [ 175 ].…”

Section: Applications Of Pani In the Food Industrymentioning

confidence: 99%

Emerging Applications of Versatile Polyaniline-Based Polymers in the Food Industry

2022

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Intrinsically conducting polymers (ICPs) have been widely studied in various applications, such as sensors, tissue engineering, drug delivery, and semiconductors. Specifically, polyaniline (PANI) stands out in food industry applications due to its advantageous reversible redox properties, electrical conductivity, and simple modification. The rising concerns about food safety and security have encouraged the development of PANI as an antioxidant, antimicrobial agent, food freshness indicator, and electronic nose. At the same time, it plays an important role in food safety control to ensure the quality of food. This study reviews the emerging applications of PANI in the food industry. It has been found that the versatile applications of PANI allow the advancement of modern active and intelligent food packaging and better food quality monitoring systems.

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“…The resulting film was extensively characterized by SEM and proved that it led to faster response and high sensitivity for strawberry and apple in comparison with PANI-HCl/PGIE and PANI-DBSA/PGIE, with less porous and homogeneous surfaces. Interestingly, it was also demonstrated that porous morphology allows the flowing of the target gas into the substrate, facilitating gas diffusion and hence, increasing the detection rate [ 181 ]. Additionally, it was stated that the interaction between the volatile compound and the conducting polymer surface also plays an important role in the sensitivity displayed with the sensor.…”

Section: Electronic Noses (E-noses) Based On Cpsmentioning

confidence: 99%

E-Tongues/Noses Based on Conducting Polymers and Composite Materials: Expanding the Possibilities in Complex Analytical Sensing

Sierra-Padilla

García-Guzmán

López-Iglesias

et al. 2021

Sensors

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Conducting polymers (CPs) are extensively studied due to their high versatility and electrical properties, as well as their high environmental stability. Based on the above, their applications as electronic devices are promoted and constitute an interesting matter of research. This review summarizes their application in common electronic devices and their implementation in electronic tongues and noses systems (E-tongues and E-noses, respectively). The monitoring of diverse factors with these devices by multivariate calibration methods for different applications is also included. Lastly, a critical discussion about the enclosed analytical potential of several conducting polymer-based devices in electronic systems reported in literature will be offered.

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Monitoring Aroma Release in Gummy Candies During The Storage Using Electronic Nose

Cited by 16 publications

References 37 publications

Electronic Nose Based on Carbon Nanocomposite Sensors for Clove Essential Oil Detection

Electronic Nose Based on Carbon Nanocomposite Sensors for Clove Essential Oil Detection

Emerging Applications of Versatile Polyaniline-Based Polymers in the Food Industry

E-Tongues/Noses Based on Conducting Polymers and Composite Materials: Expanding the Possibilities in Complex Analytical Sensing

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