Discrete ex situ and continuous in situ real-time respiration rate measurements of fresh produce using a novel automated dynamic approach

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dc.contributor.author Collings, Emma
dc.contributor.author Alamar, M. Carmen
dc.contributor.author Cools, Katherine
dc.contributor.author Ordaz-Ortiz, J. J.
dc.contributor.author Terry, Leon A.
dc.date.accessioned 2018-07-10T14:07:05Z
dc.date.available 2018-07-10T14:07:05Z
dc.date.issued 2018-04-04
dc.identifier.citation Collings ER, Alamar MC, Cools K, Ordaz-Ortiz JJ, Terry LA, Discrete ex situ and continuous in situ real-time respiration rate measurements of fresh produce using a novel automated dynamic approach, Acta Horticulturae, Volume 1194, April 2018, pp. 1265-1272 en_UK
dc.identifier.issn 0567-7572
dc.identifier.uri http://dx.doi.org/10.17660/ActaHortic.2018.1194.179
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/13334
dc.description.abstract Fresh produce respiration rate is a useful indicator of metabolic state often used in postharvest research to determine physiological differences between factors. Static (no flow) and dynamic (constant flow) measurements are two types of methods that exist for determining respiration rate in fresh produce. Implementation of an automated real-time respiration method, using a dynamic measurement, for measuring respiration rates of fresh produce in discrete (ex situ) and continuous (in situ) set-ups has been established. Discrete methods were performed on fresh (green) black pepper within 3 L hermetically sealed containers with constant flow rates of 400 mL min-1 and 1 L min-1, respectively. Continuous respiration measurements were also obtained in situ for fresh black pepper stored under air (1.8 L min-1) at 5°C, and avocado fruit stored under air and controlled atmosphere environment (ca. 10 kPa CO2 and 10 kPa O2; 400 mL min-1), at 20°C. In addition, simultaneous automated recordings of O2 and CO2 enabled accurate respiratory quotient (RQ) values to be determined for avocado throughout storage. Application of the continuous dynamic in situ measurements can also provide a more realistic assessment of physiological change / behaviour under real-world storage conditions. In this paper, we discuss the application of both discrete and continuous dynamic methods as powerful research techniques for measuring respiration rate in postharvest research. en_UK
dc.language.iso en en_UK
dc.publisher International Society for Horticultural Science (ISHS) en_UK
dc.rights Attribution-NonCommercial 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc/4.0/ *
dc.subject Sable respirometry system en_UK
dc.subject Respiratory quotient en_UK
dc.subject Piper nigrum en_UK
dc.subject Persea americana en_UK
dc.title Discrete ex situ and continuous in situ real-time respiration rate measurements of fresh produce using a novel automated dynamic approach en_UK
dc.type Article en_UK


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