Articles

EFFECT OF UV-C IRRADIATION ON CHLOROPHYLL DEGRADATION AND QUALITY CHANGES IN CHINESE KALE (BRASSICA OLERACEA VAR. ALBOGLABRA)

Article number
875_13
Pages
119 – 126
Language
English
Abstract
Chinese kale is widely consume in Thailand due to it contains a lot of nutrition.
However, it has a short storage life especially at room temperature due to yellowing of the leaf.
In this study, the UV-C irradiation at 1.8, 3.6, 5.4 and 7.2 kJ•m-2 was introduced to observe the quality of Chinese kale (Brassica oleracea var. alboglabra) during storage at 20°C. The irradiation dose of 3.6 and 5.4 kJ•m-2 delayed chlorophyll degradation and maintained the highest total chlorophyll, chlorophyll a and chlorophyll b contents.
It also delayed the reduction of hue angle and retarded the activity of chlorophyll degrading enzymes.
Moreover, the UV-C irradiation reduced the ethylene production rate which demonstrated by decreasing of ACC oxidase activity.
Furthermore, weight loss and respiration rate were also suppressed by UV-C treatment.
The results suggest that UV-C irradiation could be a useful non-chemical treatment to delay chlorophyll degradation and maintain the quality in Chinese kale.

Publication
Authors
C. Burana, V. Srilaong
Keywords
Chinese kale, UV-C irradiation, chlorophyll degradation
Full text
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