Electronic nose technology for rapid detection of adulterated camel milk powder

2021 ◽  
Vol 28 (2) ◽  
pp. 233-240
Author(s):  
Xiaoyun Wu ◽  
Naqin ◽  
Shiqi Hao ◽  
Ji Rimutu ◽  
Liang Ming
2011 ◽  
Vol 422 ◽  
pp. 43-46
Author(s):  
Hong Mei Zhang ◽  
Fen Ling Chang ◽  
Yong Chang Yu ◽  
Yu Jing He ◽  
He Li ◽  
...  

The current study uses the electronic nose FOX 4000 to inspect Xinyang Maojian tea in three quality levels. Principal component analysis (PCA) and statistical quality control (SQC) are adopted to analyze and recognize the data. PCA shows that there is a certain difference in the odor of the tea samples in the three quality levels. PCA can evidently distinguish three kinds of samples. SQC analysis shows that X800 and X600 are located outside the controllable range, indicating that they differ from X1200 in odor. This result is consistent with the PCA result. The study shows that electronic nose technology is expected to be applied widely in the rapid detection of tea.


2021 ◽  
pp. 105140
Author(s):  
Rongrong Li ◽  
Shuang Wang ◽  
Jiawei Zhang ◽  
Jing Miao ◽  
Gangliang Chen ◽  
...  

2018 ◽  
Vol 83 (12) ◽  
pp. 2983-2991 ◽  
Author(s):  
Haileeyesus Habtegebriel ◽  
Michael Wawire ◽  
Daniel Sila

2019 ◽  
Vol 4 (2) ◽  
pp. 359-366
Author(s):  
Irfan Maibriadi ◽  
Ratna Ratna ◽  
Agus Arip Munawar

Abstrak,  Tujuan dari penelitian ini adalah mendeteksi kandungan dan kadar formalin pada buah tomat dengan menggunakan instrument berbasis teknologi Electronic nose. Penelitian ini menggunakan buah tomat yang telah direndam dengan formalin dengan kadar 0.5%, 1%, 2%, 3%, 4%, dan buah tomat tanpa perendaman dengan formalin (0%). Jumlah sampel yang digunakan pada penelitian ini adalah sebanyak 18 sampel. Pengukuran spektrum beras menggunakan sensor Piezoelectric Tranducer. Klasifikasi data spektrum buah tomat menggunakan metode Principal Component Analysis (PCA) dengan pretreatment nya adalah Gap Reduction. Hasil penelitian ini diperoleh yaitu: Hidung elektronik mulai merespon aroma formalin pada buah tomat pada detik ke-8.14, dan dapat mengklasifikasikan kandungan dan kadar formalin pada buah tomat pada detik ke 25.77. Hidung elektronik yang dikombinasikan dengan metode principal component analysis (PCA) telah berhasil mendeteksikandungan dan kadar formalin pada buah tomat dengan tingkat keberhasilan sebesar 99% (PC-1 sebesar 93% dan PC-2 sebesar 6%). Perbedaan kadar formalin menjadi faktor utama yang menyebabkan Elektronik nose mampu membedakan sampel buah tomat yang diuji, karena semakin tinggi kadar formalin pada buah tomat maka aroma khas dari buah tomat pun semakin menghilang, sehingga Electronic nose yang berbasis kemampuan penciuman dapat membedakannya.Detect Formaldehyde on Tomato (Lycopersicum esculentum Mill) With Electronic Nose TechnologyAbstract, The purpose of this study is to detect the contents and levels of formalin in tomatoes by using instruments based on Electronic nose technology. This study used tomatoes that have been soaked in formalin with a concentration of 0.5%, 1%, 2%, 3%, 4%, 5% and tomatoes without soaking with formalin (0%). The samples in this study were 18 samples. The measurements of the intensity on tomatoes aroma were using Piezoelectric Transducer sensors. The classification of tomato spectrum data was using the Principal Component Analysis (PCA) method with Gap Reduction pretreatment. The results of this study were obtained: the Electronic nose began to respond the smell of formalin on tomatoes at 8.14 seconds, and it could classify the content and formalin levels in tomatoes at 25.77 seconds. Electronic nose combined with the principal component analysis (PCA) method have successfully detected the content and levels of formalin in tomatoes with a success rate at 99% (PC-1 of 93% and PC-2 of 6%). The difference of grade formalin levels is the main factor that causes Electronic nose to be able to distinguish the tomato samples tested, because the higher of formalin content in tomatoes, the distinctive of tomatoes aroma is increasingly disappearing. Thereby, the Electronic nose based on  the olfactory ability can distinguish them. 


2013 ◽  
Vol 69 (1) ◽  
pp. 135-141 ◽  
Author(s):  
Laura Capelli ◽  
Licinia Dentoni ◽  
Selena Sironi ◽  
Renato Del Rosso

This paper focuses on the opportunities for using electronic noses for odour exposure assessment purposes, especially in cases where dispersion modelling is not applicable. Such cases include, for instance, those sources where a detailed characterisation and quantification of the odour emissions for every hour of the simulation time domain is particularly difficult, due to the nature of the source or to the variability of the emissions over time. In such situations, it is useful to determine odour exposure directly at receptors instead. This paper critically discusses the state of the art of electronic nose technology as far as its application to the determination of odour exposure at receptors is concerned. One example of electronic nose application to the monitoring of odours from an Italian municipal solid waste (MSW) landfill is reported, in order to discuss the instrument's potential and limits. The monitoring results are represented by the number of measures that are classified in a specific olfactory class; this information allows the odour exposure at each monitoring site in terms of odour detection frequency to be determined. Besides a quantification of the odour episodes, electronic noses allowed the identification of the landfill gas as the monitored landfill major odour source.


2020 ◽  
Vol 73 (3) ◽  
pp. 616-624 ◽  
Author(s):  
Ahmed Zouari ◽  
Islem Mtibaa ◽  
Mehdi Triki ◽  
Mourad Jridi ◽  
Donia Zidi ◽  
...  

Author(s):  
Fabrizio De Cesare ◽  
Elena Di Mattia ◽  
Simone Pantalei ◽  
Emiliano Zampetti ◽  
Vittorio Vinciguerra ◽  
...  

2010 ◽  
Vol 48 (11) ◽  
pp. 4235-4238 ◽  
Author(s):  
A. Kolk ◽  
M. Hoelscher ◽  
L. Maboko ◽  
J. Jung ◽  
S. Kuijper ◽  
...  

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