ISHS Acta Horticulturae 157: Postharvest Handling of Vegetables
INFLUENCE OF STORAGE ON GLUCOSINOLATE FLUCTUATIONS IN CABBAGE |
| Authors: | L.S. Bérard, C. Chong |
| Abstract:
Cabbages cvs Safekeeper and F1 Mercury (Brassica oleracea L. var capitata L.) were kept at 1 ± 1°C in common refrigerated (RS) and in controlled atmosphere (CA) storages (2.5% O2, 5% CO2), for periods of 38 to 172 days followed by a post-CA holding in RS to the 214th day. In RS, the content of glucosinolates, quantified in terms of their hydrolytic breakdown products, volatile isothiocyanates, goitrin, goitrin (vinyl-oxazolidine-2-thione) and thiocyanate ion, fluctuated or increased slowly in both cultivars during the first 122 days of storage; thereafter the glucosinolate products increased more rapidly, especially toward the end of the storage period, in coincidence with the increasing senescence of the cabbage heads. In CA, the changes in glucosinolates followed a pattern generally similar to that in RS, except that cabbage samples had more volatile isothiocyanates and goitrin during the early storage period (38 to 122 days), and less during the subsequent storage and post-CA periods (122 to 214 days). Cabbages stored in CA also contained more thiocyanate ion during the intermediate storage period (80 to 172 days). | |
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