scholarly journals Voltammetric Electronic Tongues in Food Analysis

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4261 ◽  
Author(s):  
Pérez-Ràfols ◽  
Serrano ◽  
Ariño ◽  
Esteban ◽  
Díaz-Cruz
Keyword(s):  
Food Quality ◽  
Food Analysis ◽  
Food Samples ◽  
Critical Revision ◽  
Key Substances

A critical revision is made on recent applications of voltammetric electronic tongues in the field of food analysis. Relevant works are discussed dealing with the discrimination of food samples of different type, origin, age and quality and with the prediction of the concentration of key substances and significant indexes related to food quality.

scholarly journals Application of Deep Eutectic Solvents in Food Analysis: A Review

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4594 ◽  
Author(s):  
Jingnan Chen ◽  
Yun Li ◽  
Xiaoping Wang ◽  
Wei Liu
Keyword(s):  
Hydrogen Bond ◽  
Phenolic Compounds ◽  
Food Analysis ◽  
Aromatic Amines ◽  
Deep Eutectic Solvents ◽  
Food Samples ◽  
Green Solvents ◽  
Green Extraction ◽  
Extraction And Separation ◽  
Tunable Property

Deep eutectic solvents (DESs) have emerged recently as new and green solvents. DESs can be used for extraction and separation of both inorganic metallic components and organic compounds such as phenolic compounds, flavonoids, sugars, and aromatic amines from food samples. DESs possess a tunable property simply by adjusting the ratio of hydrogen bond acceptors to the hydrogen bond donors. As a green extraction medium, DESs have various applications in the pretreatment process and improve the efficiency of different food analyses. This review summarizes the findings of recent studies on the development, production, application, and efficacy of DESs in the pretreatment process of various food analyses.

Food Quality Monitoring Results Obtained within the Implementation of the National Demography Project in the Sverdlovsk Region

2020 ◽  
pp. 4-9
Author(s):  
NG Sheluntsova ◽  
VV Timofeeva ◽  
TV Mazhaeva ◽  
VI Kozubskaya ◽  
SV Sinitsyna
Keyword(s):  
Food Quality ◽  
Social Economic ◽  
Food Products ◽  
Pilot Project ◽  
Poor Quality ◽  
Food Samples ◽  
Active Ageing ◽  
Micronutrient Deficiencies ◽  
Physical Status ◽  
Laboratory Equipment

. Introduction: In accordance with the main objectives of the National Demography Project, all citizens, regardless of their social, economic and physical status, shall have access to high-quality food products sufficient to meet human physiological needs in basic nutrients and energy for health preservation and active ageing. The objective of our study was to assess the results of pilot monitoring of food quality and availability of domestic food products contributing to elimination of macro- and micronutrient deficiencies within the framework of the National Demography Project implemented in the Sverdlovsk Region. Results: We identified problems related to planning, sampling and testing of food products including those associated with purchases, laboratory equipment, and methods of testing. According to the results of laboratory testing carried out in compliance with the developed method recommendations, 47 % of all food samples failed to meet the established quality requirements. We identified a high percentage of poor quality samples of meat, dairy, confectionery, bakery, and fish products. Conclusions: The results of our pilot project can be used to correct and develop methodologies of food sampling and testing and to regulate quality characteristics. They will contribute to enhancement of the methodological basis for monitoring of food quality and availability of local foodstuffs rich in macro- and micronutrients to the population.

Electronic Noses in Food Analysis

2018 ◽  
pp. 132-150
Author(s):  
Runu Banerjee Roy ◽  
Rajib Bandyopadhyay ◽  
Bipan Tudu ◽  
Nabarun Bhattacharyya
Keyword(s):  
Sensory Evaluation ◽  
Electronic Nose ◽  
Food Quality ◽  
Food Analysis ◽  
Physical State ◽  
High Variability ◽  
Quality Monitoring ◽  
Seasonal Effect ◽  
Electronic Noses ◽  
Food Industries

Food quality evaluation is a tedious job as it can be sensed either by its flavor, taste, or appearance. Sensory evaluation for food quality determination is very complex and depends on biological sensor systems and is subject to high variability depending on taster's mood, physical state, etc. Moreover, as it is purely subjective, the observations may vary for different tasters. For food industries the instrumental means for quality monitoring has significant appreciations which are repeatable, accurate, and reliable. Electronic nose is an array of sensors that senses based on aroma of samples. For the last two decades, electronic nose has been applied in several domains of applications in food analysis, for example, food quality monitoring based on seasonal effect, ageing, geographical origin, fermentation, etc. This chapter aims to focus on different domains of application of electronic nose in food analysis.

Dispersive and FT-Raman spectroscopic methods in food analysis

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56606-56624 ◽  
Author(s):  
Ismail Hakki Boyaci ◽  
Havva Tümay Temiz ◽  
Hüseyin Efe Geniş ◽  
Esra Acar Soykut ◽  
Nazife Nur Yazgan ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Molecular Analysis ◽  
Food Analysis ◽  
Food Samples ◽  
Spectroscopic Methods ◽  
Raman Spectroscopic ◽  
Powerful Technique ◽  
Ft Raman

Raman spectroscopy is a powerful technique for molecular analysis of food samples.

Instant enumeration of total viable bacterial counts for food quality assurance using ‘DEP-On-Go’ sensor

2018 ◽  
Vol 10 (14) ◽  
pp. 1585-1592 ◽  
Author(s):  
Madhu Biyani ◽  
Radhika Biyani ◽  
Hiromi Ushijima ◽  
Masato Saito ◽  
Yuzuru Takamura ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Food Quality ◽  
Food Samples ◽  
Solid Food ◽  
Bacterial Counts ◽  
Acceptable Limit

'DEP-On-Go' sensor (DEPSOR) provides rapid, reliable (below acceptable limit) and affordable (<5 USD) monitoring of microbial loads in liquid and solid food samples.

scholarly journals Electronic Nose for Microbiological Quality Control of Food Products

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
M. Falasconi ◽  
I. Concina ◽  
E. Gobbi ◽  
V. Sberveglieri ◽  
A. Pulvirenti ◽  
...  
Keyword(s):  
Quality Control ◽  
Food Quality ◽  
Microbial Contamination ◽  
Microbiological Quality ◽  
Food Products ◽  
Food Samples ◽  
Sensor Technology ◽  
Intrinsic Variability ◽  
Electronic Noses ◽  
Food Quality Control

Electronic noses (ENs) have recently emerged as valuable candidates in various areas of food quality control and traceability, including microbial contamination diagnosis. In this paper, the EN technology for microbiological screening of food products is reviewed. Four paradigmatic and diverse case studies are presented: (a)Alicyclobacillusspp. spoilage of fruit juices, (b) early detection of microbial contamination in processed tomatoes, (c) screening of fungal and fumonisin contamination of maize grains, and (d) fungal contamination on green coffee beans. Despite many successful results, the high intrinsic variability of food samples together with persisting limits of the sensor technology still impairs ENs trustful applications at the industrial scale. Both advantages and drawbacks of sensor technology in food quality control are discussed. Finally, recent trends and future directions are illustrated.

scholarly journals Monoenzymatic Lipase Potentiometric Biosensor for the Food Analysis Based on a pH Sensitive Graphite-epoxy Composite as Transducer

2017 ◽  
Vol 59 (1) ◽  
Author(s):  
Carlos Andrés Galán-Vidal
Keyword(s):  
Organic Solvents ◽  
Spectrophotometric Determination ◽  
Food Analysis ◽  
Epoxy Composite ◽  
Food Samples ◽  
Nafion Membrane ◽  
Aqueous Extracts ◽  
Arabic Gum ◽  
First Report ◽  
Precision And Accuracy

In this paper the development of a potentiometric biosensor based on the use of the enzyme lipase immobilized in a Nafion membrane on a graphite-epoxy transducer is reported. This device has been used to quantify triglycerides in food samples from the aqueous extracts obtained by emulsion with Arabic gum. The proposed methodology does not present significant differences with the spectrophotometric determination used as contrast. This work constitutes the first report of a potentiometric biosensor based on the detection of changes of pH using a graphite-epoxy composite transducer and the first potentiometric triglyceride biosensor which is not based in ISFET transducers. The methodology designed is a simple and inexpensive alternative that minimizes the use of organic solvents without affecting the precision and accuracy of the analysis in complex food samples such as butter, chips and pastries.

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