Journal of Food, Agriculture and Environment
Vol 9,
Issue 2,2011
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Starch properties of various colored potato cultivars grown for 8 consecutive years
Author(s):
Takahiro Noda 1*,
Shogo Tsuda 1, Motoyuki Mori 1, Tatsuro Suzuki 1, Shigenobu Takigawa 1, Chie Matsuura-Endo 1, Hiroaki Yamauchi 1, Md. Zaidul Islam Sarker 2Recieved Date: 2010-12-07, Accepted Date: 2011-03-07
Abstract:Eighty-six starch samples were isolated from 12 potato cultivars grown for 8 consecutive years (2002-2009) in Hokkaido, including 4 coloured cultivars, Kitamurasaki, Shadow Queen, Northern Ruby and Inca no mezame, and investigated for phosphorus content, median granule size, and Rapid Visco-Analyzer (RVA) pasting properties. Among 12 potato cultivars, the mean values of phosphorus content, median granule size, RVA peak viscosity, RVA breakdown and RVA pasting temperature ranged from 586 to 964 mg kg-1, 30.8 to 42.6 µm, 275 to 385 RVU, 136 to 261 RVU and 67.9 to 69.5ºC, respectively. Thus, the cultivar had a great impact on all the parameters of potato starch properties. Higher mean values of starch phosphorus content (860-962 mg kg-1) were observed in all the colored potato cultivars examined, with the highest value in Kitamurasaki. Kitamurasaki had significantly higher mean values of median granule size (38.7 µm), peak viscosity (370 RVU) and breakdown (239 RVU) than the other colored cultivars. Compared to the cultivar, the harvest year had a smaller influence on starch quality parameters except for pasting temperature.
Keywords:Starch properties,
colored potato cultivars, harvest year, phosphorus content, granule size, pasting propertiesJournal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 2
Category: Food and Health
Pages: 37-40
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