Evaluation of Quality Characteristics and Definition of Utilization Category in Korean Potato (Solanum tuberosum L.) Cultivars

• Lee, Yeh-Jin (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Jeong, Jin-Cheol (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Yoon, Young-Ho (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Hong, Su-Young (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Kim, Su-Jeong (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Jin, Yong-Ik (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Nam, Jeong-Hwan (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)
• Kwon, Oh-Keun (Highland Agriculture Research Center, National Institute of Crop Science, Rural Development Administration)

published in 2012. 9. 30

Abstracts

Total twenty cultivars of potato (Solanum tuberosum L.) were grown at Gangneung where is located in low land of Korea. Their tubers were harvested from 100 to 120 days after planting, and over 150 g of tubers were selected for quality evaluation. Dry matter, starch, amylose in starch, ascorbic acid, protein, individual sugars and mineral were analyzed and mealiness of cooked potatoes were also evaluated by panel test. Dry mater content was the highest in 'Haryeong', 'Jayoung' and 'Shepody', and the biggest starch granules were observed in 'Jayoung' and 'Sinnamjak'. In addition, the content of amylose was highest in 'Haryeong', 'Chudong' and 'Goun'. Mineral content showed the slight difference between cultivars, but it's tendency was not clear. Vitamin C content was highest in 'Jayoung' as 62.5 $mg{\cdot}100g^{-1}$ FW, and 'Chugang' exhibited the highest content of protein. Sugar content was lower in cultivars for single one than double cropping. The lowest sugar content was observed in 'Atlantic' and 'Namseo' among cultivars for single cropping, and in 'Goun' for double cropping. As a result of analysis for quality factors, we could select nine cultivars ('Atlantic', 'Gahwang', 'Gawon', 'Goun', 'Hareong', 'Irish Cobbler', 'Jasim', 'Jayoung' and 'Shepody') with high dry matter content and low reducing sugar as a cultivar group for processing. Additionally, seven cultivars ('Chugang', 'Gawon', 'Goun', 'Hareong', 'Irish Cobbler', 'Jasim' and 'Seohong') with high mealiness and amylose content and five cultivars ('Atlantic', 'Chudong', 'Gahwang', 'Jopung' and 'Jowon') with low mealiness and amylose content were classified as groups for boiled or steam cooking and for soup or pot dishes, respectively.

Keyword

• cooking
• dry matter
• mineral
• potato
• processing
• quality
• starch
• sugar
• utilization
• vitamin C

Published Information

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Published Information of the Articles

Publisher	The Korean Society of Crop Science
KJTK Publish Information	Volume 6. 2013. 1. 24
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