한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제65권2호
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  • Pages.79-83
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  • 2020
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  • 0252-9777(pISSN)
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  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
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색채선별기 이용한 남부평야지 조기재배 해담쌀의 품질향상

Improvement of Rice Quality Using Grain Color Sorter During Early Transplanting Cultivation in the Southern Plain of Korea

  • 이종희 (국립식량학원 남부작물부 논이용작물과) ;
  • 이지윤 (국립식량학원 남부작물부 논이용작물과) ;
  • 이소명 (국립식량학원 남부작물부 논이용작물과) ;
  • 신동진 (국립식량학원 남부작물부 논이용작물과) ;
  • 차진경 (국립식량학원 남부작물부 논이용작물과) ;
  • 조준현 (국립식량학원 남부작물부 논이용작물과) ;
  • 권영호 (국립식량학원 남부작물부 논이용작물과) ;
  • 조수민 (국립식량학원 남부작물부 논이용작물과) ;
  • 박동수 (국립식량학원 남부작물부 논이용작물과)
  • Lee, Jong-Hee (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Lee, Ji-Yoon (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Lee, Somyeong (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Shin, Dongjin (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Cha, Jinkyeong (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Cho, Jun-Hyeon (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Kwon, Young-Ho (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Jo, Su-min (Department of Southern Area Crop Science, National Institute of Crop Science, RDA) ;
  • Park, Dong-Soo (Department of Southern Area Crop Science, National Institute of Crop Science, RDA)
  • 투고 : 2020.02.25
  • 심사 : 2020.04.13
  • 발행 : 2020.06.01
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초록

본 연구에서 남부 평야지 조기재배 조건에서 생산된 쌀을 색채선별기를 이용한 쌀의 외관특성 향상과 밥맛의 향상을 위해 품질관련 특성을 분석하였다. 해담쌀 백미를 색채선별기에 2회 통과하여 등급별로 분류한 결과, A급은 64.8%, B급 18.0%, C급 17.2%이였다. 분류등급별 쌀을 백미완전미율을 분석한 결과, A급은 72.9%로 색채선별전 쌀 48.4%보다 약 25.4%정도 향상되었다. B등급과 C등급은 원료곡보다 완전미율이 낮았다. 쌀의 백도는 A등급이 45.3으로 색채선별전의 원곡보다 1.7정도 낮아졌다. 색상색차계 적색도 a값은 색채선별전 대비구에 비해 유의하게 낮았다. 아밀로스 함량과 단백질 함량은 색채선별 전후 유의한 차이가 없었으나, 쌀의 호화특성은 정상립으로 분류된 A등급은 최고점도와 최종점도가 각각 266.1RVU와 215.9 RVU로 색채선별전보다 높았고, 밥의 윤기치에서도 68.8로 색채 선별전보다 증가하였다. 이 결과로 볼 때 평야지 조기재배 조건에서 생산된 쌀을 색채선별기를 이용한 쌀의 외관특성을 분류함으로써 완전미율과 밥맛이 향상될 수 있을 것으로 기대된다.

A photoelectric grain color sorter is commonly used in postharvest technology to detect and separate grains considered to be of good quality from those of poor quality based on color. In this study, the milled rice of Haedamssal cultivated under early transplanting conditions was evaluated using the color sorting device. Rice was classified according to standard grades of 64% for grade A, 18% for grade B, and 17.2% for grade C. By head rice ratio analysis, the milled rice of Haedamssal was recorded a grade A of 72.9%, representing a 24.5% improvement compared to the 48.4% of original grains. However, the grades B and C of Haedamssal rice were lower than those of original rice. In addition, grade A whiteness of Haedamssal rice was 45.3, which was lower than that of original grains. The color affinity redness was significantly lower in Haedamssal rice than in the screening control. No significant difference was found in the amylose and protein contents of rice before and after selection by the grain color sorter. In contrast, grain viscosity analysis revealed an increase in peak and final viscosities, while the consistence viscosity increased in low grade levels. Our results suggest that the photoelectric grain color sorter could improve the head rice ratio and palatability of early transplanted Hadamssal rice.

키워드

참고문헌

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피인용 문헌

  1. Transcriptional Changes in the Developing Rice Seeds Under Salt Stress Suggest Targets for Manipulating Seed Quality vol.12, 2020, https://doi.org/10.3389/fpls.2021.748273