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2023 Vol.68, Issue 4 Preview Page
Changes in Phytosterol Content in Cobs and Kernels During Physiological Maturity of Corn Ears

옥수수 이삭 등숙 기간 동안 속대와 종실의 Phytosterol 함량 변화

Jun Young Ha1
,
Young Sam Go2
,
Jae Han Son2
,
Mi-Hyang Kim3
,
Kyeong Min Kang4
,
Tae Wook Jung5
,
Beom Young Son6
,
Hwan Hee Bae2*
하 준영1
,
고 영삼2
,
손 재한2
,
김 미향3
,
강 경민4
,
정 태욱5
,
손 범영6
,
배 환희2*
1Researcher, Central Area Crop Breeding Division, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Republic of Korea
2Agriculture Researcher, Central Area Crop Breeding Division, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Republic of Korea
3Agriculture Researcher, Crop Post-Harvest Technology Division, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Republic of Korea
4Agriculture Researcher, Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju 55365, Republic of Korea
5Agriculture Senior Researcher, Central Area Crop Breeding Division, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Republic of Korea
6Agriculture Senior Researcher, National Institute of Crop Science, Rural Development Administration, Wanju 55365, Republic of Korea
1농촌진흥청 국립식량과학원 중부작물부 중부작물과 연구원
2농촌진흥청 국립식량과학원 중부작물부 중부작물과 농업연구사
3농촌진흥청 국립식량과학원 중부작물부 수확후이용과 농업연구사
4농촌진흥청 국립식량과학원 작물육종과 농업연구사
5농촌진흥청 국립식량과학원 중부작물부 중부작물과 농업연구관
6농촌진흥청 국립식량과학원 농업연구관
*Corresponding Author
1 December 2023. pp. 392-401
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Abstract

Corn (Zea mays L.) is one of the world’s most important crops, along with wheat and rice, with a global corn production expected to reach 1,154.5 million tons in 2023. Considering this grain production, The generation of corn cob is expected to reach approximately 207.8 million tons in 2023. However, as an agricultural by-product, corn cobs are often considered waste and remain underutilized. Phytosterols, which are abundant in vegetable oils such as corn oil, provide a number of health benefits, including liver health, cholesterol reduction, and protection against chronic diseases such as diabetes. In this study, we investigated the potential of Kwangpyeongok ears, which are commonly used as grain and silage corn in Korea. We also examined the variation in phytosterol content with the maturity of corn ears to identify the optimal time for utilization. At the beginning of physiological maturity, corn cobs had 113.3 mg/100g DW of total phytosterols, which was highest phytosterol abundance during the growth stage. Corn kernels also had the highest phytosterol content at the beginning of physiological maturity. While previous studies on corn bioactive compounds have mainly focused on the kernels, the results of this study highlight that cobs are an excellent source of these compounds. Furthermore, phytosterol levels were influenced by genetic factors and developmental stages, suggesting the to increase the use of cobs as a source of bioactive compounds.

Keywords
corn cob
crude fat
fatty acid
phytosterol
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Information
  • Publisher :The Korean Society of Crop Science
  • Publisher(Ko) :한국작물학회
  • Journal Title :The Korean Journal of Crop Science
  • Journal Title(Ko) :한국작물학회지
  • Volume : 68
  • No :4
  • Pages :392-401
  • Received Date : 2023-10-26
  • Revised Date : 2023-11-07
  • Accepted Date : 2023-11-07
  • DOI :https://doi.org/10.7740/kjcs.2023.68.4.392
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