Response of minimally processed carambola to chemical treatments and low-oxygen atmospheres

Teixeira, Gustavo H. A., Durigan, José F., Alves, Ricardo E. and O'Hare, Timothy J. (2008) Response of minimally processed carambola to chemical treatments and low-oxygen atmospheres. Postharvest Biology And Technology, 48 3: 415-421. doi:10.1016/j.postharvbio.2007.08.011


Author Teixeira, Gustavo H. A.
Durigan, José F.
Alves, Ricardo E.
O'Hare, Timothy J.
Title Response of minimally processed carambola to chemical treatments and low-oxygen atmospheres
Journal name Postharvest Biology And Technology   Check publisher's open access policy
ISSN 0925-5214
1873-2356
Publication date 2008-06
Sub-type Article (original research)
DOI 10.1016/j.postharvbio.2007.08.011
Volume 48
Issue 3
Start page 415
End page 421
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Language eng
Abstract Fresh-cut carambola (Averrhoa carambola L.) has limited marketability due to cut-surface browning. The effect of chemical treatments (ascorbic acid, citric acid and Ca-EDTA), controlled atmosphere (0.4–20.3% O2) and the association of these processes was investigated. Post-cutting dip and low-oxygen atmospheres did not prevent discoloration or improve sensory and physicochemical parameters. However, ascorbic acid (0.5% and 1%) dips reduced polyphenol oxidase (PPO) activity during storage at 4.5 °C, with 1% ascorbic acid inducing the lowest activity. Although cut-surface browning of ‘Maha’ slices was not relevant, carambola slices treated with 1% ascorbic acid in association with 0.4% oxygen did not present significant browning or loss of visual quality for up to 12 days, 3 days longer than low oxygen alone (0.4% O2), thus, their quality can be significantly improved by combining both treatments.
Keyword Browning
Polyphenol Oxidase
Controlled Atmosphere
Averrhoa Carawbola
Ascorbic Acid
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Mon, 07 Mar 2011, 15:20:55 EST