통합 검색 | Korea Science

박소영;박재국
- 수산해양교육연구
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- 제22권1호
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- pp.11-24
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- 2010
The purpose of this study was to analyze the needs of the preservice secondary school teacher on understanding of international society and curriculum of international understanding and to derive the implications on developing curriculum of international understanding. This study used a questionnaire survey. The results are summarized as follows. First, it seems to be necessary to develop curriculum for satisfying the higesconcerns on worldsculture of preservice secondary school teacher. Second, the curriculum of educating international understanding for preservice secondary school teacher should contain such contents as multiple cultures, multiple perspectives, global relations and instructional materials. Third, it is necessary that instructions on educating international understanding should employ experience of global culture, discussion, lecture and so on.
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Truong, Ngoc Minh;Phung, Thi Tuyen;Do, Tan Khang;Nguyen, Van Quan;Pham, Thi Thu Ha;Nguyen, Thanh Quan;Andriana, Yusuf;Truong, Mai Van;Tran, Dang Xuan
- 한국작물학회:학술대회논문집
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- 한국작물학회 2017년도 9th Asian Crop Science Association conference
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- pp.34-34
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- 2017
Various extracts of roots, stems, and leaves of Phalaenopsis Sogo Yukidian 'V3' were evaluated for total phenolics, total flavonoids, and antioxidant capacity. The conjugate form of stem samples contained the highest total phenolics ($5.092{\pm}0.739mg$ gallic acid equivalent per g dry weight） and the highest total flavonoids ($2.218{\pm}0.021mg$ rutin equivalent per g dry weight) was found in the hexane extract of leaves. The ethyl acetate extract of roots showed the maximum antioxidant activity as compared to other extracts. Of which, the $IC_{50}$ value of this sample were 0.070 mg/mL and 0.450 mg/mL in the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay and reducing power, respectively, while the lipid peroxidation inhibition (LPI) value was as 94.2% by ${\beta}$-carotene bleaching method. Five phenolic compounds including caffeic acid, syringic acid, vanillin, ellagic acid, and cinnamic acid were quantified by high-performance liquid chromatography (HPLC). It is suggested that roots of the hybrid Phalaenopsis Sogo Yukidian 'V3' can be explodited as an effective source of antioxidants.
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