Effect of process variables on ethylene removal by vacuum ultraviolet radiation: Application in fresh produce storage

Pathak, Namrata; Caleb, Oluwafemi J.; Rauh, Cornelia; Mahajan, Pramod V.

doi:10.1016/j.biosystemseng.2017.04.008

Cited by 30 publications

(11 citation statements)

References 34 publications

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“…Currently, quantification of ethylene heavily relies on sophisticated and time-consuming conventional methods such as gas chromatography, 7 gas chromatography−mass spectrometry, 8 photoacoustic spectroscopy, 9 and electrochemical methods. 10 Although these methods can quantify ethylene at a low concentration with high accuracy, they are not applicable to the end customer.…”

mentioning

confidence: 99%

Naked-Eye Detection of Ethylene Using Thiol-Functionalized Polydiacetylene-Based Flexible Sensors

et al. 2020

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Ethylene is a hormone that plays a critical role in many phases of plant growth and fruit ripening. Currently, detection of ethylene heavily relies on sophisticated and timeconsuming conventional assays such as chromatography, spectroscopy, and electrochemical methods. Herein, we develop a polydiacetylene-based sensor for the detection of ethylene via color change. The sensors are prepared through the reaction between polydiacetylene and Lawesson's reagent that results in decorating polydiacetylene with terminal thiol groups. Upon exposure to ethylene, the sensor changes color from blue to red which is visible to the naked eye. Our device shows a limit of detection for ethylene at 600 ppm in air and can be applied for monitoring ethylene released during the fruit-ripening process. Such easy-to-use ethylene sensors may find applications in plant biology, agriculture, and food industry.

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confidence: 99%

Naked-Eye Detection of Ethylene Using Thiol-Functionalized Polydiacetylene-Based Flexible Sensors

et al. 2020

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“…It has been demonstrated that ethylene may be quantified with an easily constructed FAIMS device employing a UV lamp for ionization and that ethylene given off by climacteric fruit may be determined. The detection limit of 200 ppb (V/V) is better than that reported for an instrument based on a nondispersive absorbance measurement (20 ppm [23]), comparable to those reported for electrochemical detection (760 ppb [9], 40 ppb [10]), but not as good as that reported for gas chromatography (0.4 ppb [7]) or a photoacoustic instrument (0.3 ppb [8]). On the other hand, the device is simpler and less expensive than the latter and more robust than the electrochemical devices, and may be an option for applications where ultimate sensitivity is not required.…”

Section: Discussionmentioning

confidence: 46%

“…The most simple configurations are based on direct absorbance measurements using broadband thermal emittors, but these devices tend to lack the necessary selectivity and sensitivity for horticultural applications. Photoacoustic instruments based on laser diodes or quantum cascade lasers (QCLs) can attain good selectivity and limits of detection in the low ppb (V/V) range [2,8]. Such instruments are commercially available, but at a cost of at least € 20′000 [2].…”

Section: Introductionmentioning

confidence: 99%

Determination of ethylene by field asymmetric ion mobility spectrometry

Chantipmanee

Hauser

2020

Int. J. Ion Mobil. Spec.

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The determination of ethylene with a field asymmetric ion mobility spectrometer, which can easily be constructed in-house, is described. The device makes use of a Krypton lamp for ionization. A rectangular pulse of 500 Vpp at 1 MHz was employed as separation waveform in the drift tube rather than the commonly used less efficient bisinusoidal waveform. The calibration curve for the range from 670 ppb(V/V) to 67 ppm(V/V) was found to be highly linear with a correlation coefficient of r = 0.9999. The limit of detection was determined as 200 ppb(V/V). The reproducibility was 4% (relative standard deviation). The device was found to be suitable for the determination of ethylene given off by fruit; 6 types of climacteric fruit were tested, namely apples, bananas, kiwi fruit, nectarines, pears and plums.

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“…The methods for ethylene removal include genetic modification, adsorption, direct oxidation, , catalytic oxidation, − etc. According to Sherman, these methods can be separated into three major categories: avoidance, removal, and inhibition .…”

Section: Introductionmentioning

confidence: 99%

Elimination or Removal of Ethylene for Fruit and Vegetable Storage via Low-Temperature Catalytic Oxidation

et al. 2021

J. Agric. Food Chem.

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Ethylene acts as an important hormone to trigger the ripening and senescence of fruits and vegetables (F&V). Thus, it is essential to eliminate trace ethylene and prevent F&V losses effectively. There are several technologies currently applying to control the ethylene concentration in the storage and transportation environment, including adsorption, gene modification, oxidation, etc. These protocols will be compared, and special attention will be paid to the low-temperature catalytic oxidation that has already been applied to practical production in this review. The active sites, supports, and reaction and deactivation mechanism of the catalysts for the low-temperature ethylene oxidation will be discussed and evaluated systematically to provide new insights for the development of effective catalysts, along with the suggestion of some perspectives for future research on this important catalytic system for F&V preservation.

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Effect of process variables on ethylene removal by vacuum ultraviolet radiation: Application in fresh produce storage

Cited by 30 publications

References 34 publications

Naked-Eye Detection of Ethylene Using Thiol-Functionalized Polydiacetylene-Based Flexible Sensors

Naked-Eye Detection of Ethylene Using Thiol-Functionalized Polydiacetylene-Based Flexible Sensors

Determination of ethylene by field asymmetric ion mobility spectrometry

Elimination or Removal of Ethylene for Fruit and Vegetable Storage via Low-Temperature Catalytic Oxidation

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