Articles
CHANGES IN ETHYLENE PRODUCTION, RESPIRATION AND POLYPHENOL OXIDASE OF FRESH-CUT APPLE
Article number
746_44
Pages
369 – 374
Language
English
Abstract
The physiological and biochemical changes in respiration rate, ethylene production, polyphenol oxides and browning of fresh-cut Fuji apple were investigated.
Soluble solids content and Hunter color index L* were also determined.
Ethylene production increased sharply to reach a peak after cutting and then decreased gradually, especially at 20°C. Respiration rate followed a similar pattern.
Wounding also induced the increase of PPO activity and resulted in a decrease of L* value due to the browning surface of fresh-cut apple.
Wounding induced physio-biochemical reactions and these were markedly affected by temperature.
It was important to maintain a constant low temperature for keeping better quality of fresh-cut apple.
Soluble solids content and Hunter color index L* were also determined.
Ethylene production increased sharply to reach a peak after cutting and then decreased gradually, especially at 20°C. Respiration rate followed a similar pattern.
Wounding also induced the increase of PPO activity and resulted in a decrease of L* value due to the browning surface of fresh-cut apple.
Wounding induced physio-biochemical reactions and these were markedly affected by temperature.
It was important to maintain a constant low temperature for keeping better quality of fresh-cut apple.
Authors
W.Z. Hu, K. Pang, A.L. Jiang, M.X. Tian
Keywords
fresh-cut apple, respiration, ethylene production, enzymatic browning
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