scholarly journals Non-destructive methods for fruit quality evaluation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ana-Maria Bratu ◽  
Cristina Popa ◽  
Mihaela Bojan ◽  
Petre Catalin Logofatu ◽  
Mioara Petrus
Keyword(s):  
Real Time ◽  
Fruit Quality ◽  
Photoacoustic Spectroscopy ◽  
Quality Evaluation ◽  
Multispectral Imaging ◽  
Degradation Process ◽  
Non Invasive ◽  
Laser Photoacoustic Spectroscopy ◽  
Non Destructive ◽  
Destructive Methods

AbstractThis work studies the evolution in time of several varieties of apples with application in quality storage maintenance. Two different methods were used to evaluate long-stored apples for better sorting and degradation assessment. The first method was laser photoacoustic spectroscopy for the detection of ethylene and ethanol compounds from the internal atmosphere of apples. The second method was multispectral imaging that measures the image and the spectrum combined and also can be used to address features such as ripening and external defects. The experiments showed that, the ethylene value decreases and the value of ethanol increases, which sometimes we may associate with a drift of the images toward darker tones, because the apple is slowly degrading. Non-invasive, real-time inspection can reveal when the degradation process begins, improving the capability of sorting, maintaining their quality and storability.

scholarly journals Portable XRF: A Tool for the Study of Corundum Gems

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Germana Barone ◽  
Paolo Mazzoleni ◽  
Danilo Bersani ◽  
Simona Raneri
Keyword(s):  
Spectroscopic Techniques ◽  
Portable Xrf ◽  
Correct Evaluation ◽  
Non Invasive ◽  
Heritage Studies ◽  
Origin Determination ◽  
Non Destructive ◽  
Xrf Spectroscopy ◽  
Destructive Methods

AbstractOrigin of gemstones is a key aspect not only in gemological field but also in Cultural Heritage studies, for the correct evaluation of precious artifacts. The studies on gems require the application of non-invasive and non-destructive methods; among them, portable spectroscopic techniques has been demonstrated as powerful tools, providing a fingerprint of gems for origin and provenance determination. In this study, portable XRF spectroscopy has been applied to test the potential of the technique for the origin determination of corundum gems. The obtained results allowed distinguishing natural and synthetic rubies and sapphires.

scholarly journals Assessing the Condition of Gas Turbine Rotor Blades with the Optoelectronic and Thermographic Methods

Metals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 31 ◽  
Author(s):  
Mariusz Bogdan ◽  
Józef Błachnio ◽  
Artur Kułaszka ◽  
Marcin Derlatka
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Degradation Process ◽  
Turbine Rotor ◽  
Visible Range ◽  
Engine Operation ◽  
Color Changes ◽  
Optoelectronic Method ◽  
Non Destructive ◽  
Destructive Methods

Gas turbines and their blades in particular might be damaged in the course of the aviation turbojet engine operation process. The degradation process of the blade microstructure is most evident from the change in the colour of its surface. This is assessed using the optoelectronic method. The article presents the concept of non-destructive methods, which are used to assess the degree of degradation of the alloy of a gas turbine blade. The proposed optoelectronic method is the basic method for the preliminary determination of color changes in the surface. Appropriate videoscopes or video-analyzers, capable of recording a test object in various electromagnetic wave ranges (infrared radiation, visible range), are used for this purpose. These preliminary results of the diagnosis make it possible to infer further studies of the blade. For accurate investigation of the state of the alloy microstructure, a non-destructive thermographic method (xenon flash pulsed thermography) was used. The results of studies of the degradation of the microstructure with the use of non-destructive methods were verified through the use of metallographic investigations. Appropriate metallographic specimens were created in order to recognize phase γ′ degradation (i.e., the phase strengthening the blade alloy). The results of the presented research allowed for an in-depth assessment of the degree of microstructure degradation of operated blades.

scholarly journals ANALISIS KONTRAS SPEKEL UNTUK IDENTIFIKASI LILIN PADA BUAH APEL (Mollus domestica) DENGAN METODE LASER SPECKLE IMAGING (LSI)

1930 ◽  
Vol 8 (01) ◽  
pp. 67-71
Author(s):  
Shabri Putra Wirman ◽  
Neneng Fitrya
Keyword(s):  
Fruit Quality ◽  
Imaging System ◽  
Laser Speckle ◽  
Imaging Method ◽  
Optical Technology ◽  
Laser Speckle Imaging ◽  
Speckle Imaging ◽  
Post Harvest ◽  
Non Invasive ◽  
Non Destructive

Post-harvest apples are still doing the metabolism process such as respiration and transpiration that lead to decreased fruit quality so that required post-harvest handling, one of them with the waxing process. Wax detection on fruit is difficult to do directly, so further testing is required. One method that can be done is to use optical technology is a speckle imaging system with the LSI (Laser Speckle Imaging) method that is without touching (non-invasive) and without damage (non destructive). The apple contrast value before lamination has a contrast value in the range 0.34637 a.u until 0.38449 a.u. After waxing the apple contrast value decreases. Apples with 4% wax concentration had a contrast value 0.319 a.u, with 6% wax concentration had a contrast value 0.3109 a.u and with 8% wax concentration had a contrast value 0,29895 a.u.

scholarly journals Prediction of carcass composition and meat and fat quality using sensing technologies: A review

2021 ◽  
Author(s):  
Patricia L.A. Leighton ◽  
Jose Development Segura ◽  
Stephanie Development Lam ◽  
Marcel Marcoux ◽  
Xinyi Wei ◽  
...  
Keyword(s):  
Quality Evaluation ◽  
Evaluation Research ◽  
Carcass Composition ◽  
Rapid Evaluation ◽  
High Quality ◽  
Non Invasive ◽  
Fat Quality ◽  
Recent Developments ◽  
Livestock Products ◽  
Non Destructive

Consumer demand for high-quality healthy food is increasing,  thus meat processors require the means toassess these rapidly, accurately, and inexpensively. Traditional methods forquality assessments are time-consuming, expensive, invasive, and have potentialto negatively impact the environment. Consequently, emphasis has been put onfinding non-destructive, fast, and accurate technologies for productcomposition and quality evaluation. Research in this area is advancing rapidlythrough recent developments in the areas of portability, accuracy, and machinelearning. The present review, therefore, critically evaluates and summarizes developmentsof popular non-invasive technologies (i.e., from imaging to spectroscopicsensing technologies) for estimating beef, pork, and lamb composition andquality, which will hopefully assist in the implementation of thesetechnologies for rapid evaluation/real-timegrading of livestock products in the nearfuture.

scholarly journals Non-invasive real-time imaging of reactive oxygen species (ROS) using auto-fluorescence multispectral imaging technique: A novel tool for redox biology

Redox Biology ◽  
2020 ◽  
Vol 34 ◽  
pp. 101561 ◽  
Author(s):  
Abbas Habibalahi ◽  
Mahdieh Dashtbani Moghari ◽  
Jared M. Campbell ◽  
Ayad G. Anwer ◽  
Saabah B. Mahbub ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Real Time ◽  
Multispectral Imaging ◽  
Imaging Technique ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Real Time Imaging ◽  
Redox Biology ◽  
Non Invasive ◽  
Auto Fluorescence

scholarly journals Potential application of laser-based imaging technology in the quality evaluation of agricultural products : A review

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Philip Donald Cabuga Sanchez ◽  
NORHASHILA HASHIM ◽  
ROSNAH SHAMSUDIN ◽  
MOHD ZUHAIR MOHD NOR
Keyword(s):  
Potential Application ◽  
Quality Evaluation ◽  
Imaging Technique ◽  
Current Knowledge ◽  
Agricultural Products ◽  
Primary Concern ◽  
Evaluation Tool ◽  
Imaging Technology ◽  
Non Invasive ◽  
Non Destructive

Non-destructive quality evaluation of agricultural products particularly during postharvest stage has been a primary concern in recent years. The laser-based imaging technology is one of the most promising non-invasive tools which demonstrate potential ability to replace the conventional methods of quality monitoring that are time-consuming, expensive, laborious, inaccurate and most of all destructive. Hence, in this paper, we briefly reviewed the potential application of laser-light backscattering imaging technique (LLBI) as a non-destructive quality evaluation tool applied in agricultural products. This review mainly reports the current knowledge on the successful implementations of the LLBI in measuring the various quality-related attributes of agricultural products under different postharvest conditions such as in drying, storage, sorting, maturity identification, defect detection, etc. The basic components, uses and considerations of the technique are highlighted in this paper. Moreover, the advantages, drawbacks, measurement methods, data analysis applied as well as the accuracies obtained are briefly summarized.

METHODS TO ASSESS FRUIT QUALITY FOCUSING ON NON-DESTRUCTIVE METHODS

2012 ◽  
pp. 275-284 ◽  
Author(s):  
G. Costa ◽  
M. Noferini ◽  
G. Fiori ◽  
N. Berthod ◽  
S. Besse ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Non Destructive ◽  
Destructive Methods
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