Research Papers: Sensing

Gas exchange in fruits related to skin condition and fruit ripening studied with diode laser spectroscopy

[+] Author Affiliations
Jing Huang, Hao Zhang, Huiying Lin, Tianqi Li

South China Normal University, Center for Optical and Electromagnetic Research, University City Campus, Research Building 5, Guangzhou 510006, China

Liang Mei

Lund University, Lund Laser Center, P.O. Box 118, SE-221 00 Lund, Sweden

Katarina Svanberg, Sune Svanberg

South China Normal University, Center for Optical and Electromagnetic Research, University City Campus, Research Building 5, Guangzhou 510006, China

Lund University, Lund Laser Center, P.O. Box 118, SE-221 00 Lund, Sweden

J. Biomed. Opt. 21(12), 127007 (Dec 23, 2016). doi:10.1117/1.JBO.21.12.127007
History: Received September 16, 2016; Accepted November 28, 2016
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Abstract.  The concentration of the biologically active molecular oxygen gas is of crucial importance for fruits in the metabolic respiration, maturation, and ripening processes. In our study, oxygen content and oxygen transport in fruits, exemplified by apples and guavas, were studied noninvasively by gas in scattering media absorption spectroscopy. The technique is based on the fact that free gases typically have 10,000 times narrower absorption features than the bulk material. The technique was demonstrated in studies of the influence of the fruit skin in regulating the internal oxygen balance, by observing the signal response of the internal oxygen gas to a transient change in the ambient gas concentration on peeled and unpeeled fruits. In addition, the gas exchange rate at different ripening stages was also studied in intact guavas.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Jing Huang ; Hao Zhang ; Huiying Lin ; Tianqi Li ; Liang Mei, et al.
"Gas exchange in fruits related to skin condition and fruit ripening studied with diode laser spectroscopy", J. Biomed. Opt. 21(12), 127007 (Dec 23, 2016). ; http://dx.doi.org/10.1117/1.JBO.21.12.127007


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