Journal
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
Volume 54, Issue 4, Pages 319-323Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2004.05.001
Keywords
cassava tubers; post-harvest deterioration; ATPases; peroxidases; lipoxygenases
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Alterations in the activity of ATPases, peroxidases and lipoxygenases were studied during early stages of post-harvest deterioration of cassava (Manihot esculenta Crantz cv. Oyolu) root tubers. The peak activities of Ca2+-ATPase, (Ca2+ + Mg2+)-ATPase, Na+ + K+-ATPase, Mg2+-ATPase and peroxidases were observed after the first 24 h and thereafter decreased. The activity of lipoxygenase was biphasic, probably depicting two distinct isoforms expressed during deterioration. The results indicate that ATPases and peroxidases have a role in the post-harvest deterioration of cassava tuber, but the participation of lipoxygenases seems unlikely. (C) 2004 Elsevier Ltd. All rights reserved.
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