Physicochemical Characteristics of Different Waxy Corn Cultivars Grown in the Chungbuk Region
2024
Hong, E.A. | Kyung, Y.J. | Jo, Y.J. | Jung, Y.J. | Hwang, S.G. | So, Y.S. | Lee, J.S. | Jeong, H.S.
This study evaluated the physicochemical characteristics of waxy corn cultivated in the Chungbuk region. The moisture, crude ash, crude fat, and crude protein contents ranged from 7.30∼8.81%, 1.18∼1.63%, 4.78∼5.87%, and 10.07∼11.84%, respectively, with no significant differences between the cultivars. The total sugar content was the lowest in Daehak waxy corn at 7.70%, and the highest in Saengmyeong waxy corn at 14.24%. The starch content ranged from 63.23 (Taeyang)∼67.10% (Ilmi), and the amylose content was the highest in Saengmyeong waxy corn at 12.85%. Among the fatty acid contents, linoleic acid was the highest in the range of 35.86∼40.41%, followed by oleic acid, palmitic acid, and stearic acid. The hardness ranged from 1,115.70 (Daehak)∼1,600.13 g (Saengmyeong). The peak viscosity of the starch content was in the range of 202.00∼214.03 rapid viscosity units (RVU), with Taeyang waxy corn having the highest viscosity. The setback was highest in Saengmyeong waxy corn at 24.61 RVU. These results showed that there was no significant difference in the physicochemical characteristics of the waxy corn cultivars. However, Taeyang waxy corn was considered an economical cultivar due to its low starch content and high sugar content, and because it could be harvested in two ears.
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