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강일옥 옥수수의 영양성분, 카로티노이드 함량분석 및 생리활성 평가
이기연,김희연,김재은,홍수영,김태희,박아름,노희선,김시창,박종열,안문섭 한국식품위생안전성학회 2017 한국식품위생안전성학회지 Vol.32 No.6
This study was performed to provide basic data of ‘Kangilok’. The objective of this study was to investigate worth of 4 parts of maize hybrid for grain, ‘Kangilok’ for functional foods. The 4 parts are kernels, dehulled kernels, skin of kernels and cobs of ‘Kangilok’. We evaluated moisture, crude ash, crude lipid, crude protein, crude fiber and mineral content of ‘Kangilok’. The moisture of kernels, dehulled kernels, skin of kernels and cobs of ‘Kangilok’ were 11.27%, 12.40%, 9.45%, 8.85% and the crude ash were 1.26%, 0.73%, 3.19%, 1.42%. Each of the crude lipid were 3.84%, 2.69%, 8.59%, 0.46% and the crude protein were 9.40%, 9.96%, 12.10%, 2.80%. The crude fiber of kernels, dehulled kernels, skin of kernels and cobs of ‘Kangilok’ were 2.24%, 0.92%, 7.07%, and 33.51%. Among the mineral contents, Ca and K content of cobs were highest by 4.84 mg/100 g, 114.33 mg/100 g and Fe, Mn contents of skin of kernels were highest by 5.30 mg/100 g, 2.64 mg/100 g. Mg content of kernels was the highest by 27.42 mg/100 g. P content of kernels, dehulled kernels, skin of kernels and cobs were 1.20%, 0.96%, 2.41%, and 0.19%. It was performed test on anti-oxidative, anti-inflammatory activities of 60% ethanol extract from 4 parts of Kangilok. The anti-oxidative effect was measured by DPPH and ABTS radical scavenging activity. As a results, DPPH radical scavenging activity (10 mg/mL) was 72.59%~93.05% and ABTS radical scavenging activity (10 mg/ mL) was 48.17%~79.88%. The anti-inflammatory effect was measured by ability to inhibit production nitric oxide (NO) in RAW264.7 cell. As a result, all the extract of 4 parts were showed significantly inhibitory effect on NO production. Carotenoid contents quantified by using HPLC. β-Carotene of carotenoid was not analyzed in all the sample. Lutein and zeaxantin ware analyzed in kernels and skin of kernels.
Critical Considerations on Issues in Character Assessment
이기연 서울대학교 교육종합연구원 2017 The SNU Journal of Education Research Vol.26 No.2
Evaluation is essential for developing effective education and for introducing it to students. The same applies to character education as well, but evaluating character is not a simple task. Character is a value-oriented concept of ‘a desirable image of human being,’ constantly changes throughout one’s life, is often affected by situations, and has multiple aspects. Regarding these characteristics, I discuss that interpretive tradition is more suitable than positivist tradition in evaluating character. When positivistic measurement participates as a pivotal role, serious problems would occur. It could lead character education into the mean of indoctrination, and students’ characters could be distorted by concentrating only on some aspects. After all, it could make all of the efforts on character education useless that had been done before. Here I suggest principles of character assessment to retain its original purpose for improving character education and cultivating students’ characters.