ISHS Acta Horticulturae 804: Europe-Asia Symposium on Quality Management in Postharvest Systems - Eurasia 2007
LIGNIFICATION OF FRESH-CUT BAMBOO UNDER LOW O2 CONDITIONS |
| Authors: | P. Kakaew, C. Jirapong, C. Wongs-Aree |
| Keywords: | Dendrocalamus asper Backer, minimal processing, browning, darkening, lignin, phenolics |
| Abstract:
Bamboo is not only used for home decorations, but for food compositions of many recipes in East-Asian countries. Ready-to-cook bamboo is immensely favour in retail markets but the fresh-cut turned yellow, brown, and hard texture quickly. In this study, lignin accumulation and quality of fresh-cut bamboo were investigated under consistent low O2 of 10 and 5% (N2 balanced), compared to normal air (21% O2) at 10°C and 95% RH. Peroxidase activities (POD) of all treatments highly increased after storage that the rates of increase were lower in bamboo slices under low O2 atmosphere. Lignins combined with phloroglucinol-HCl obviously located in secondary spiral cell walls of tracheids in vascular bundles. Although L values were no significant differences between treatments, fresh-cut bamboo expressed progressive yellow on the cut surface during storage. Oxygen at 5% in storage atmosphere was best in retardant of the colour changes. | |
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