Determination of the respiration rate of tomato fruit using flow analysis

Calegario, F. F.; Cosso, Ricardo G.; Almeida, F.; Vercesi, Anı́bal E.; Jardim, Wilson F.

doi:10.1016/s0925-5214(01)00096-5

Cited by 17 publications

(14 citation statements)

References 18 publications

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“…According to another report by Esler et al (2000), CO 2 analysis by Fourier transform infrared (FT-IR) spectroscopy yielded short-term precision at a level of 0.15%. The relative error in CO 2 measurement was reported as -3.0% by the continuous-flow method using a conductimetric detector [24]. As per NIOSH manual of analytical methods (1994), the GC-TCD method has an accuracy of ± 5.3% and a bias of -2.5% in the 2270-10000 ppm range of CO 2 analysis.…”

Section: Resultsmentioning

confidence: 99%

“…The analysis of CO 2 gas comprises a long history of 180 years with the development of several chemical and physical methods such as: gas chromatography [12, 13], infrared analysis [14], C 14 isotope measurement [15], mass spectrometry [16], FT-IR spectroscopy [17], gas diffusion-flow injection (GD-FIA) [18] or continuous flow systems based on photometric detection with various pH indicator systems [19, 20, 21, 22], conductimetric sensors [23, 24, 25] thermistors [26], and acoustic detectors [27, 28]. …”

Section: Methodsmentioning

confidence: 99%

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The Relative Performance of NDIR-based Sensors in the Near Real-time Analysis of CO2 in Air

Pandey

Kim

2007

Sensors

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In this study, the reliability of NDIR-based sensors was explored by evaluating the comparability between measurement systems in the near real-time analysis of CO2. For this purpose, replicate analyses were performed using sensors of two different model types (H-550 and B-530, ELT Company, Korea). Three replicate data of each sensor type collected continuously by side-by-side analysis in three second intervals (a duration of 304 hour) were evaluated for the relative performance of NDIR sensors. The reproducibility of sensors, when assessed by relative standard error (RSE %) values of all sensor units, showed moderate changes with time with the overall mean of 2.33%. When CO2 measurements from all NDIR sensor units were evaluated by correlation analysis, the results showed strong comparability, regardless of the model type. The overall results of this study suggest that NDIR sensors are reliable enough to produce highly comparable data at least in a relative sense.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

The Relative Performance of NDIR-based Sensors in the Near Real-time Analysis of CO2 in Air

Pandey

Kim

2007

Sensors

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“…Respiration rate (RR) was measured using infrared CO 2 analyzer (Calegario and others ). Care must be taken not to keep the product enclosed for too long, because the decrease of oxygen and increase of carbon dioxide concentrations will subsequently affect the respiration rate of the product.…”

Section: Methodsmentioning

confidence: 99%

Effects of Hypobaric Treatments on the Quality, Bioactive Compounds, and Antioxidant Activity of Tomato

Kou

Wang

et al. 2016

Journal of Food Science

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Hypobaric treatment is becoming a potential technology to protect fruits from postharvest decay. The objective of this study was to investigate the effects of hypobaric treatments on storage quality, bioactive compounds, and antioxidant activity of tomato fruit. In this study, green tomatoes (cv. "Fen guan") were treated with hypobaric pressures (0.04 and 0.07 MPa) at ambient temperature (20 ℃) for 28 d. The results showed that under hypobaric storage, the respiration rates significantly declined and the respiratory peaks postponed 12 and 8 d by 0.04 and 0.07 MPa treatments, respectively, compared to control. Total soluble solid, titratable acidity, ascorbic acid, and lycopene were retained by hypobaric treatment. Moreover, ascorbic acid contents treated with 0.04 and 0.07 MPa were, respectively, 37% and 26% higher than control at day 24 and the contents of total polyphenols were, respectively, 1.28 and 1.11 times higher than control. Production and accumulation of toxic substances were significantly restrained. The ethanol content decreased, respectively, by 53% and 84% than control. At later storage period, the superoxide dismutase activity in treated fruits was about 0.58 U/(g·FW·min), whereas only 0.29 U/(g·FW·min) in control. Hypobaric treatment not only maintained a high activity of superoxide dismutase and peroxidase (POD), but also improved antioxidant capacity. All the results indicated that hypobaric treatment was a potential helpful method to protect the quality and nutrition of tomato and prolong ripening of tomato. Furthermore, the effect of 0.04 MPa hypobaric treatment was found better than 0.07 MPa.

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“…Living cells of harvested plant products respire continuously, utilizing stored reserves and oxygen from the surrounding environment, and releasing carbon dioxide [14]. Respiration rate is one of the most important indicators of senescence in fruit, as are weight loss, pigment content, firmness [15].…”

Section: Introductionmentioning

confidence: 99%

Olive mill wastewater triggered changes in physiology and nutritional quality of tomato (Lycopersicon esculentum Mill.) depending on growth substrate

Ouzounidou

Asfi

Sotirakis

et al. 2008

Journal of Hazardous Materials

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Determination of the respiration rate of tomato fruit using flow analysis

Cited by 17 publications

References 18 publications

The Relative Performance of NDIR-based Sensors in the Near Real-time Analysis of CO2 in Air

The Relative Performance of NDIR-based Sensors in the Near Real-time Analysis of CO2 in Air

Effects of Hypobaric Treatments on the Quality, Bioactive Compounds, and Antioxidant Activity of Tomato

Olive mill wastewater triggered changes in physiology and nutritional quality of tomato (Lycopersicon esculentum Mill.) depending on growth substrate

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