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Fruit and Vegetable Quality Assessment via Dielectric Sensing.

El Khaled D, Novas N, Gazquez JA, Garcia RM, Manzano-Agugliaro F - Sensors (Basel) (2015)

Bottom Line: The demand for improved food quality has been accompanied by a technological boost.A better electrical characterization of the dielectric properties of fruits and vegetables is required for this purpose.It comprehensively and chronologically covers the dielectric experiments explored for fruits and vegetables, along with their appropriate sensing instrumentation, analytical modelling methods and conclusions.

View Article: PubMed Central - PubMed

Affiliation: Departmentof Engineering, University of Almería, 04120 Almería, Spain. dalia.elkhaled@gmail.com.

ABSTRACT
The demand for improved food quality has been accompanied by a technological boost. This fact enhances the possibility of improving the quality of horticultural products, leading towards healthier consumption of fruits and vegetables. A better electrical characterization of the dielectric properties of fruits and vegetables is required for this purpose. Moreover, a focused study of dielectric spectroscopy and advanced dielectric sensing is a highly interesting topic. This review explains the dielectric property basics and classifies the dielectric spectroscopy measurement techniques. It comprehensively and chronologically covers the dielectric experiments explored for fruits and vegetables, along with their appropriate sensing instrumentation, analytical modelling methods and conclusions. An in-depth definition of dielectric spectroscopy and its usefulness in the electric characterization of food materials is presented, along with the various sensor techniques used for dielectric measurements. The collective data are tabulated in a summary of the dielectric findings in horticultural field investigations, which will facilitate more advanced and focused explorations in the future.

No MeSH data available.


Frequency Ranges applied for fruit and vegetable measurements.
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sensors-15-15363-f004: Frequency Ranges applied for fruit and vegetable measurements.

Mentions: Regarding the frequency range, it is not consistent within the different apple experiments and for the other fruits as well. Some were conducted at low frequency range; however recent ones have been applied at higher frequency ranges. Recently, high-frequency sensing measurement has been approachable with the availability of advanced technology instruments. It is important to note that a higher frequency requires higher budget cost which might be the obstacle for many of the researches. Throughout the paper, it was shown that higher frequency lead to more focused results. The various frequency ranges executed on the different species of vegetables and fruits are presented graphically in Figure 4.


Fruit and Vegetable Quality Assessment via Dielectric Sensing.

El Khaled D, Novas N, Gazquez JA, Garcia RM, Manzano-Agugliaro F - Sensors (Basel) (2015)

Frequency Ranges applied for fruit and vegetable measurements.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541835&req=5

sensors-15-15363-f004: Frequency Ranges applied for fruit and vegetable measurements.
Mentions: Regarding the frequency range, it is not consistent within the different apple experiments and for the other fruits as well. Some were conducted at low frequency range; however recent ones have been applied at higher frequency ranges. Recently, high-frequency sensing measurement has been approachable with the availability of advanced technology instruments. It is important to note that a higher frequency requires higher budget cost which might be the obstacle for many of the researches. Throughout the paper, it was shown that higher frequency lead to more focused results. The various frequency ranges executed on the different species of vegetables and fruits are presented graphically in Figure 4.

Bottom Line: The demand for improved food quality has been accompanied by a technological boost.A better electrical characterization of the dielectric properties of fruits and vegetables is required for this purpose.It comprehensively and chronologically covers the dielectric experiments explored for fruits and vegetables, along with their appropriate sensing instrumentation, analytical modelling methods and conclusions.

View Article: PubMed Central - PubMed

Affiliation: Departmentof Engineering, University of Almería, 04120 Almería, Spain. dalia.elkhaled@gmail.com.

ABSTRACT
The demand for improved food quality has been accompanied by a technological boost. This fact enhances the possibility of improving the quality of horticultural products, leading towards healthier consumption of fruits and vegetables. A better electrical characterization of the dielectric properties of fruits and vegetables is required for this purpose. Moreover, a focused study of dielectric spectroscopy and advanced dielectric sensing is a highly interesting topic. This review explains the dielectric property basics and classifies the dielectric spectroscopy measurement techniques. It comprehensively and chronologically covers the dielectric experiments explored for fruits and vegetables, along with their appropriate sensing instrumentation, analytical modelling methods and conclusions. An in-depth definition of dielectric spectroscopy and its usefulness in the electric characterization of food materials is presented, along with the various sensor techniques used for dielectric measurements. The collective data are tabulated in a summary of the dielectric findings in horticultural field investigations, which will facilitate more advanced and focused explorations in the future.

No MeSH data available.