Online measurement of moisture content, moisture distribution, and state of water in corn kernels during microwave vacuum drying using novel smart NMR/MRI detection system

Lv, Weiqiao; Zhang, Min; Wang, Yuchuan; Adhikari, Benu

doi:10.1080/07373937.2017.1418751

Cited by 61 publications

(32 citation statements)

References 32 publications

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“…The spatial information gathered from MRI about fat, water, and temperature permit researchers to investigate the transfer of mass and heat in both biological and agricultural products. Significantly, these studies were done during dynamic processes like soaking, freezing, dehydrating/drying, heating, and storing (Chen, Zhang, Zhao, & Ouyang, ; Hwang, Cheng, Chang, Lur, & Lin, ; Lv, Zhang, Wang, & Adhikari, ). In the study on seasonal chemical–physical variations of Pachino cherry tomatoes Figure a, Ciampa, Dell’Abate, Masetti, Valentini, and Sequi () indicated that the spin–lattice T 1 and spin–spin relaxation T 2 times, as determined by whole fruit provide significant information showing differences among samples in relation to the season.…”

Section: Applications Of Lf‐nmr and Mri Techniques On Fruits And Vegementioning

confidence: 99%

Section: Measurement Of Fat Content Protein Content and The Ratiomentioning

confidence: 99%

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Potential uses of LF‐NMR and MRI in the study of water dynamics and quality measurement of fruits and vegetables

Kamal

Cheng

Khan

et al. 2019

J Food Process Preserv

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This paper provides an overview of nondestructive imaging techniques for evaluating internal and external quality characteristics of fruits and vegetables and the future prospects of those technologies within the food industry. Low‐field nuclear magnetic resonance (LF‐NMR) and magnetic resonance imaging (MRI) are viable technologies in assessing water status, which can significantly impact the quality of fruits and vegetables' texture, tenderness, and microstructure. This review examined some of the most widely studied agricultural fruits and vegetables, described NMR/MRI techniques, and explained the benefits of their implementation in the assessment of internal quality attributes such as internal defects, water content, nutrition content, maturity, fruit firmness, and seed detection, as well as physicochemical and microbiological quality in both commercial and industrial applications. In spite of considerable developments in the quality measurement of fruits and vegetables and their products, the implementation of these techniques at an industrial level has been unsatisfactory. Practical applications This paper aimed to present a magnificent knowledge about fruit/vegetable processing and preservation techniques pertaining to quality evaluation. If the appropriate skills and the introduced tools are combined and utilized in an innovative and suitable way, a high quality of fruit/vegetable products with a high nutritional value can be achieved. This will be beneficial for both producers and customers.

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Section: Applications Of Lf‐nmr and Mri Techniques On Fruits And Vegementioning

confidence: 99%

Section: Measurement Of Fat Content Protein Content and The Ratiomentioning

confidence: 99%

Potential uses of LF‐NMR and MRI in the study of water dynamics and quality measurement of fruits and vegetables

Kamal

Cheng

Khan

et al. 2019

J Food Process Preserv

View full text Add to dashboard Cite

show abstract

“…The longer the transverse relaxation T 2 , the looser water molecules in the sample are bound to other substances, and the freer the proton is. Thereby, the phase and composition of water in the sample can be judged based on the starting position of the peak in T 2 relaxation inversion spectra [22,23] .…”

Section: Theories and Methods Of Moisture Detection Through Nmr Technmentioning

confidence: 99%

Micro-nondestructive detection of the moisture and ion of rice seeds during germination under salt stress

Yang

Wang

et al. 2019

International Journal of Agricultural and Biological Engineering

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Salt stress is one of the major stress factors limiting rice productivity. Its damaging effects include water deficit due to osmotic stress, and ionic toxicity caused by ionic stress. It is very important to study the salt-tolerance mechanism of rice under salt stress, in order to improve the salt-tolerance capacity of rice and thereby increase the yield. In this experiment, the low field nuclear magnetic resonance (LF NMR) technique and the traditional dry-weight weighing method, the non-invasive micro-test technique (NMT) and the inductively coupled plasma emission spectrometry (ICP-AES) were applied to analyze the distribution of water and the flow of K + and Na + of rice seeds during germination under NaCl stress. The results suggested that for all different NaCl concentrations, as germination hours grew, the amplitude of NMR signals of the bound water that of the free water and the total amplitude all increased gradually. And the higher the NaCl concentration is, the weaker the increase trend is. In addition, the moisture content of the seeds and the total amplitude of NMR signals were positively correlated. The regression equation was y =191.53x +1463.6, the correlation coefficient was R=0.9823, and the determination coefficient was R 2 =0.9650. By this regression equation, the moisture content of each state of water during seed germination can be calculated. When without NaCl stress, the rice seeds absorbed K + in the germination process. However, when under NaCl stress at different concentrations, K + efflux was detected. The contents of K + and K + /Na + were lower than that under the control condition. The higher NaCl concentration is, the lower the K + and K + /Na + contents are. These results are in consistence with the K + and Na + contents detected by the inductively coupled technique. These empirical data offer a reference for the study of rice-seeds' response mechanism under salt stress during germination and the screening of germplasm resources, and also put forward a new method of biopsy micro-nondestructive test for plants under stress.

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“…The conventional methods are time-consuming, and destructive, whereas low field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) are nuclear magnetism based powerful tools for rapid and descriptive analysis without requiring sample destruction ( Kirtil & Oztop, 2016 ). A real-time monitoring of moisture content and its distribution were reported during the drying of abalone ( Song et al, 2017 ), corn ( Lv et al, 2018 ), vegetables ( Lv et al, 2017 ), and shitake mushroom ( Cheng, Li, et al, 2020 ; Zhao et al, 2019 ). Moreover, we have recently reported the intelligent detection of the safe level of water activity (0.6) through the use of LF-NMR during the drying of vegetables and fruits ( Chitrakar et al, 2019 ; Chitrakar et al, 2020 ).…”

Section: Technological Intervention To Reduce the Impact Of Covid-19 mentioning

confidence: 99%

Improvement strategies of food supply chain through novel food processing technologies during COVID-19 pandemic

2021

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Online measurement of moisture content, moisture distribution, and state of water in corn kernels during microwave vacuum drying using novel smart NMR/MRI detection system

Cited by 61 publications

References 32 publications

Potential uses of LF‐NMR and MRI in the study of water dynamics and quality measurement of fruits and vegetables

Potential uses of LF‐NMR and MRI in the study of water dynamics and quality measurement of fruits and vegetables

Micro-nondestructive detection of the moisture and ion of rice seeds during germination under salt stress

Improvement strategies of food supply chain through novel food processing technologies during COVID-19 pandemic

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