Variation in Amylase Activities in Radish (Raphanus sativus) Cultivars

The radish (Raphanus sativus) is a root vegetable of the Brassicaceae family which shows amylolytic activity in the taproot. However, there is little information about differences in these amylolytic activities among radish cultivars. We analyzed the amylase activities and starch contents of 7 kinds...

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Bibliographic Details
Published in:Plant foods for human nutrition (Dordrecht) 2009-09, Vol.64 (3), p.188-192
Main Authors: Hara, Masakazu, Ito, Fumio, Asai, Tatsuo, Kuboi, Toru
Format: Article
Language:English
Subjects:
Amylases - isolation & purification
Amylases - metabolism
Biological and medical sciences
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Ecology
Food industries
Food Science
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
Nutrition
Original Paper
Plant Extracts - metabolism
Plant Physiology
Plant Roots - enzymology
Raphanus - chemistry
Raphanus - enzymology
Starch - analysis
Starch and starchy product industries
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Summary:The radish (Raphanus sativus) is a root vegetable of the Brassicaceae family which shows amylolytic activity in the taproot. However, there is little information about differences in these amylolytic activities among radish cultivars. We analyzed the amylase activities and starch contents of 7 kinds of radish cultivars. The Koshin cultivar showed the highest amylase activity, with a level approximately 6 times higher than that of the Sobutori cultivar, which had the lowest. Cultivars with higher amylase activities showed higher starch contents. These results suggest that there are intraspecies variations in amylolytic activities in radishes, and positive correlations between amylase activity and starch content.
ISSN:0921-9668
1573-9104
DOI:10.1007/s11130-009-0129-9