• Title/Summary/Keyword: RDA 2020

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Deodorization of Gastrodia elata Blum Extracts using Diaion HP-20 Resin (Diaion HP-20 레진을 이용한 천마 추출물의 불쾌취 제거)

  • Jang, Gwi Yeong;Choi, Je Hun;Choi, Su Ji;Lee, Seung Eun;Seo, Kyung Hye;Kim, Dong Hwi;Jee, Yun Jeong;Jeong, Heon Sang;Lee, Yoon Jeong
    • Korean Journal of Medicinal Crop Science
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    • v.28 no.1
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    • pp.29-37
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    • 2020

  • Background: Although Gastrodia elata contains the valuable, bio-active compounds gastrodin and 4-hydroxybenzyl alcohol (4-HBA), it also contain ρ-cresol, which is a major source of an objectionable pig slurry-like odor. Accordingly, this study was performed to determine the deodorization effect of Diaion HP-20 resin on a G. elata extract. Methods and Results: Using Diaion HP-20 with an increasing concentration of ethanol, an extract of G. elata was fractionated into 15 fractions, which were anlayzed to determine their concentrations of active compounds and ρ-cresol. The gastrodin, 4-HBA, total phenolics, and ρ-cresol concentrations of the G. elata extract were 403.13, 408.15, 2,476.09, and 11.77 ㎍/㎖, respectively. Among the different fractions, gastrodin and 4-HBA were detected in fractions 3 to- 6, and 4 to- 10, respectively whereas total phenolics were detected in all samples, with fractions 5 to- 7 being characterized by higher concentrations than were the other fractions. ρ-Cresol was detected in fractions 12 to- 15, at concentrations ranging from 0.39 ㎍/㎖ to 6.05 ㎍/㎖ with the highest concentration detected in fraction 14. The fractions containing ρ-cresol could be selectively separated from the G. elata extract without the loss of major bio-active compounds such as gastrodin and 4-HBA. Conclusions: The results of this study indicate that a deodorizing method using Diaion HP-20 resin can be considered for improving the sensory qualities of G. elata extract without a loss of the major bio-active compounds.

  • https://doi.org/10.7783/KJMCS.2020.28.1.29 인용 PDF KSCI HTML

Agronomic Characteristics and Artificial-cross Method of Collected Safflower (Carthamus tinctorius L.) Germplasm (홍화 수집자원의 작물학적 특성 및 교배 방법)

  • Oh, Myeong Won;Lee, Jeong Hoon;Jeong, Jin Tae;Han, Jong Won;Lee, Sang Hoon;Ma, Kyung Ho;Hur, Mok;Chang, Jae Ki
    • Korean Journal of Medicinal Crop Science
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    • v.28 no.4
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    • pp.298-309
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    • 2020

  • Background: Safflower (Carthamus tinctorius L.) is a useful medicinal and oil crop in Korea. However, when safflower is cultivated, the flowering period overlaps with the rainy season, and seed maturation is poor. Therefore, this study aimed to use basic research data to develop superior varieties using agronomic characteristics and crossing method. Methods and Results: A total of 34 safflower germplasms were sown and their agronomic characteristics were investigated. Based on these investigations, the cultivar 'ui-san-hong-hwa' was selected as the mother plant, and 'Myanmar safflower' (Hsu Pan) was selected as the father plant. In addition, we developed a floret-protecting cap to cover florets after emasculation during the artificial crossing. When florets were protected by the cap, the seed setting rate increased in comparison to that in the non-covered florets. Conclusions: Agronomic characteristics can contribute to developing suitable varieties. The results suggest that the protection cap will be helpful in breeding without the floral organ drying. This study contributes an efficient breeding method to develop new safflower varieties.

  • https://doi.org/10.7783/KJMCS.2020.28.4.298 인용 PDF KSCI

Metabolic profiling and method validation of marker compounds from Saposhnikoviae Radix and Peucedani Japonici Radix (방풍, 식방풍의 대사체 프로파일링을 통한 지표성분 선정 및 분석법검증)

  • Choi, Bo-Ram;Yoon, Dahye;Kim, Geum-Soog;Han, Kyung-Sook;Choi, Doo Jin;Lee, Young-Seob;Hyun, Do Yoon;Lee, Dae Young
    • Journal of Applied Biological Chemistry
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    • v.63 no.4
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    • pp.393-399
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    • 2020

  • Saposhnikoviae Radix (SR) and Peucedani Japonici Radix (PR) have been used as the main traditional herbal medicines in Korea, China and Japan. In this study, ultra-performance liquid chromatography coupled to quadrupole time of flight mass spectrometry (UPLC-QTOF/MS)-based metabolomics was applied to evaluate the quality of SR and PR using the marker compounds. In the S-plot of SR and PR, 5-O-methylvisammioside and peucedanol were selected as a marker compound for SR and PR, respectively. Also, an UPLC method was established and well validated for marker compounds of SR and PR. These results suggested that the established analysis method could be used one of the good methods for the classification and quality assessment of SR and PR.

  • https://doi.org/10.3839/jabc.2020.051 인용 PDF KSCI

A Study on the Linking Structure for Authorized Access Point for Manifestation Based on the Current Bibliographic Trends in South Korea (국내 서지동향을 반영한 구현형의 전거형 접근점 연계 구조)

  • Mideum Park;Seungmin Lee
    • Journal of Korean Library and Information Science Society
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    • v.55 no.2
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    • pp.109-132
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    • 2024

  • As the bibliographic environment has been evolved towards linked data and semantic web, revision of KCR5 based on RDA is also in progress in Korea. Even authorized access points play an important role in identification and linkage between resources in the evolving bibliographic environment. However, the original RDA applied by KCR5 does not provide authorized access points for all entities. Based on the analysis of the authorized access point of manifestation in RDA 2020, this research identified properties and proposed a linking structure of the authorized access point that can be applied to the revision of KCR5. An authorized access point for manifestation is an access point that considers both intellectual and physical aspects, and can be the foundation for linking and identifying actual resources. The proposed structure is expected to be a linking structure for authority record optimized to the current bibliographic environment, which can be helpful in the practical application of the authorized access point for manifestation.

  • https://doi.org/10.16981/kliss.55.2.202406.109 인용 PDF