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Application of photoacoustic spectroscopy in monitoring emission of C2H4 and CO2 in passion fruit stored under different atmospheres

 
: Figueira Corrêa, Savio; Oliveira, Jurandi Gonçalves de; Santos, W.C.; Souza, A.F.; Vargas, Helion; Silva, Marcelo Gomes; Silva, Marcelo Gomes; Miklós, András

Cantwell, M.I. ; International Society for Horticultural Science -ISHS-, Commission on Quality and Postharvest Horticulture:
XXVIII International Horticultural Congress on Science and Horticulture for People, IHC 2010. Proceedings. Vol.1 : International Symposium on Postharvest Technology in the Global Market; Lisbon, Portugal, August 22 - 27, 2010
Leuven: ISHS, 2012 (Acta horticulturae 934)
ISBN: 978-90-6605-378-6
pp.125-132
International Symposium on Postharvest Technology in the Global Market <2012, Lisbon>
International Horticultural Congress on Science and Horticulture for People (IHC) <28, 2010, Lisbon>
English
Conference Paper
Fraunhofer IBP ()

Abstract
The present work shows the application of the photoacoustic spectrometer in the monitoring of the ethylene emission rate in passion fruit submitted to different types of atmosphere storage. Three types of modified atmosphere were applied: 1) 100% N2 and 0% O2 (MA1), 2) 97% N2 and 3% O2 (MA2) and 3) 94% N2 and 6% O2 (MA3). The respiratory rate and parameters of the skin color as CIE a, b and angle hue were monitored and correlated with the ethylene emission rate. The loss of mass was also evaluated. Results indicated that atmospheres with oxygen concentrations below 3% cause fruit damage, evident as fermentation and presence of fungus in the skin, while 6% oxygen led to a 2 day increased in shelf life.

: http://publica.fraunhofer.de/documents/N-228171.html