교사클릭 : 추억의 교회학교 ; 삶의 동력이 되어준 유년시절 새벽기도길

허태임 ( Heo Tae Im ) 장로회신학대학교 기독교교육연구원 2004 교육교회 Vol.322 No.-

Physicochemical Characterization of Fermented Rhododendron micranthum Rurcz. Extract and Its Biological Activity

Tae Im Heo(허태임),Jun Woo Lee(이준우),Ji Ae Park(박지애),Yeong Su Kim(김영수) 한국약용작물학회 2017 한국약용작물학회 학술대회논문집 Vol.2017 No.2

랜덤포레스트와 적외선 분광법을 이용한 팽나무속 (Celtis) 수종 식별 및 분광학적 특성 중요도 분석

허태임(Tae-Im Heo),김동현(Dong-Hyun Kim),황성욱(Sung-Wook Hwang) 한국데이터정보과학회 2021 한국데이터정보과학회지 Vol.32 No.6

본 연구는 잠재적 활용 가치가 높은 팽나무속 수종의 분류군 프로파일링을 위한 데이터를 확보하기 위해 수행되었으며, 본 논문에서는 적외선 분광법과 기계 학습 기법을 이용한 목재 식별 과정을 다루었다. 한반도에 자생하는 팽나무속 5 수종과 푸조나무속 1 수종으로 구성된 삼과 6 수종으로부터 4000-400 cm<SUP>-1</SUP> 영역의 적외선 스펙트럼을 획득하여 데이터세트를 구축하였다. 수종 식별을 위해 랜덤포레스트, 서포트 벡터 머신, 인공신경망 모델을 수립하였으며 랜덤포레스트의 평균 불순도 감소에 기반한 스펙트럼 특성 중요도를 산출하였다. 조사된 수종들의 분광학적 특성은 매우 유사하여 원본 적외선 스펙트럼으로 학습된 모델의 식별 정확도는 0.533-0.733 수준이었으나 2차 미분으로 전처리된 스펙트럼을 학습한 모델의 성능은 0.800-0.867로 상당히 개선되었다. 랜덤포레스트에서 1800-700cm<SUP>-1</SUP> 스펙트럼 영역이 특성 중요도가 높게 산출되었다. 해당 영역의 스펙트럼 데이터로 선택 학습된 모든 모델의 정확도가 0.867-0.933 수준으로 향상되어 실제로 수종 식별에 대한 중요도가 높은 영역임이 확인되었다. This study aims to accumulate data for taxonomic profiling of Celtis species with high potential usefulness. This paper describes a process for wood identification using machine learning techniques with infrared spectroscopy. A spectral dataset was built by acquiring infrared spectra in the 4000-400 cm<SUP>−1</SUP> region from six species of the Cannabaceae family. Random forest, support vector machine, and artificial neural network models were established for wood identification. In addition, the mean decrease impurity-based feature importance was produced from the random forest model. Because the spectral characteristics of the six species were very similar, the identification accuracies of the models trained with the original infrared spectra were low as 0.533-0.733. Data preprocessing using the Savitzky-Golay algorithm resulted in improved accuracy to 0.800-0.867. Random forest suggested that the feature importance of the 1800-700 cm<SUP>−1</SUP> region was relatively high. The identification performance of all models trained with spectral data of the 1800-700 cm-1 region was improved to 0.867-0.933, proving that the selected region has high importance for the identification of the Celtis species.

복합순환운동이 과체중 및 비만 여중생의 신체조성, 체력 및 대사증후군 관련 인자에 미치는 영향

박찬호(Park Chan-Ho),허태임(Heo Tae-Im),김태운(Kim Tae-Un) 한국코칭능력개발원 2009 코칭능력개발지 Vol.11 No.4

A Flora of Vascular Plants in Mt. Munsusan, Bonghwa

이혜정(Hye Jeong Lee),변준기(Jun Gi Byeon),허태임(Tae Im Heo),김지동(Ji Dong Kim),박병주(Byeong Joo Park),이동혁(Dong Hyuk Lee),이준우(Jun Woo Lee) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.6

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Munsusan (1,205 m) in Bonghwa County, North Gyeongsang Province, South Korea. The vascular plants that were investigated in 2 years (2019 ~ 2020) with 15 times consisted a total of 571 taxa; 94 families, 310 genera, 496 species, 4 subspecies, 63 varieties and 8 formas. For the Korean endemic plants, 17 taxa were recorded and 3 taxa of Vulnerable Species (VU) and 9 taxa of Least Concerned species (LC) categorized by the Korean Forest Service as rare plants were investigated in this region. Furthermore, Ⅳ, Ⅲ degrees of floristic regional indicator plants designated by the Korean Ministry of Environment included 8 taxa and 27 taxa, respectively. Among them, edible, medicinal, ornamental, feed/composting, industrial plants were 391 taxa, 359 taxa, 301 taxa, 241 taxa, 217 taxa, respectively. In addition, 25 taxa of naturalized plants were observed.

태백산의 관속식물상

신현탁 ( Hyun Tak Shin ),윤정원 ( Jung Won Yoon ),김상준 ( Sang Jun Kim ),허태임 ( Tae Im Heo ),권영한 ( Yeong Han Kwon ),임동옥 ( Dong Ok Lim ),안종빈 ( Jong Bin An ) 한국환경생태학회 2015 한국환경생태학회지 Vol.29 No.3

본 연구는 강원도 태백시에 위치한 태백산 도립공원 지역의 관속식물의 분포조사를 수행하고자 실시하였다. 조사는 2014년 4월부터 2014년 10월까지 실시하였다. 그 결과 관속식물은 총 79과 238속 352종 4아종 43변종 7품종 406분류 군을 확인하였다. 그 중 특산식물은 키버들, 진범, 홀아비바람꽃 등 8분류군, 산림청 지정 희귀식물은 VU등급 두메개고사리 등 4분류군, LC등급 세잎종덩굴, 너도바람꽃, 등칡 등 12분류군까지 총 16분류군을 확인하였다. 식물구계학적 특정식물은 총 107분류군으로 Ⅴ등급 좀미역고사리, 눈측백, 승마 3분류군, Ⅳ등급 골개고사리, 들바람꽃, 회리바람꽃 등 14분류군, Ⅲ등급 분비나무, 주목, 거제수나무 등 31분류군, Ⅱ등급 다람쥐꼬리, 좀나도히초미, 가래고사리 등 32분류군,Ⅰ등급 관중, 낚시고사리, 잣나무 등 27분류군이 각각 조사되었다. 또한 귀화식물은 닭의덩굴, 소리쟁이, 유럽점나도나물 등 16분류군으로 확인되었으며, 도시화지수는 5%, 귀화율은 3.9%로 각각 나타났다. To investigate the distribution of vascular plants growing in Mt. Taebaeksan, a survey was conducted from April, 2014 to October, 2014. The flora of Mt. Taebaeksan was classified as a total of 406 taxa comprising of 79 families, 238 genus, 352 species, 4 subspecies, 43 varieties and 7 forma. Among them, 8 taxa were identified as endemic plants in Korea including Salix koriyanagi Kimura, Aconitum pseudolaeve Nakai, Anemone koraiensis Nakai, etc. 16 taxa of Korean rare plants species were identified including 4 taxa in the degree of VU (Asplenium spinulosum (Maxim.) Milde, etc.) and 12 taxa in the degree of LC (Clematis koreana Kom., Eranthis stellata Maxim., Aristolochia manshuriensis Kom., etc.) The floristic special plants were a total of 107 taxa which consist of 3 taxa in degree Ⅴ(Polypodium virginianum L., etc.), 14 taxa in degree Ⅳ(Asplenium otophorum (Miq.) Koidz., etc.), 31 taxa in degree III (Abies nephrolepis (Trautv.) Maxim., etc.), 32 taxa in degree Ⅱ(Lycopodium chinense H.Christ, etc.) and 27 taxa in degree Ⅰ(Dryopteris crassirhizoma Nakai, etc.). For the naturalized plants, 16 taxa were identified (Fallopia dumetorum (L.) Holub, Rumex crispus L., Cerastium glomeratum Thuill). Also, the percentage of urbanization index was 5 %, and the naturalized plant index was 3.9 % respectively.

꼬리진달래 발효추출물의 이화학적 특성 및 생리활성 연구

김민진(Min-Jin Kim),유상미(Sang-Mi Yu),김도연(Do-Yeon Kim),허태임(Tae-Im Heo),이준우(Jun Woo Lee),박지애(Ji-Ae Park),박창수(Chang-Su Park),김영수(Yeong-Su Kim) 한국생명과학회 2018 생명과학회지 Vol.28 No.8

우리나라 특산, 희귀 식물로 알려져 있는 꼬리진달래(Rhododendron micranthum Turcz)를 기능성 유산균 Lactobacillus rhamnosus를 이용하여 발효 소재를 만들고 발효 소재의 항산화 활성 및 피부 개선 활성을 조사 하였다. 고형분 함량 3%의 꼬리진달래 추출물에 L. rhamnosus를 3%가 되게 접종하여 3일간 배양하여 5×10<SUP>9</SUP> CFU/ml의 높은 농도의 유산균이 배양 되었고 총페놀 함량은 배양 전 130 GAE mg/ml에서 157 GAE mg/ml로 증가 한 것으로 확인되었다. DPPH, ABTS radical 소거능과 tyrosinase, elastase 저해 활성은 발효 전과 비교 하였을 때 각각 1.3, 1.5, 2.4, 5.6배 높게 나타났다. 이러한 결과는 꼬리진달래 추출물을 유산균을 이용 하여 발효하였을 때 새로운 발효소재로 식품 및 화장품 산업 분야에 다양한 용도로 사용 가능할 것으로 생각 된다. 하지만 발효에 의한 천연 성분의 변화 및 활성 성분에 대한 분석, 생리활성 관련 작용 기전에 대해 추가적인 연구가 진행되어야 할 것이다. This study evaluated tyrosinase, elastase inhibitory, and antioxidant activities of fermented Rhododendron micranthum Turcz. extract using a lactic acid bacterium, Lactobacillus rhamnosus. The optimum conditions for fermentation of R. micranthum Turcz. extract were 37℃ and 3% R. micranthum Turcz. extract for 3 days based on the bacterial cell number, total phenolic compounds, DPPH radical scavenging activity, and tyrosinase and elastase inhibitory activity. After culture for 3 days using 3% R. micranthum Turcz. extract, the cell mass of L. rhamnosus reached 5.7×10<SUP>9</SUP> CFU/ml. The results indicated that R. micranthum Turcz. extract can be used for industrial lactic acid bacteria culture. After fermentation under optimum conditions, the total content of phenolic compounds of the fermented R. micranthum Turcz. extract was 157 GAE mg/ml, and the IC50s of DPPH radical scavenging activity, ABTS radical scavenging activity, and tyrosinase and elastase inhibitory effects were 78.8, 79.8, 329.1, and 449.5 μg/ml, respectively. The fermented R. micranthum Turcz. extract exhibited 1.2-, 1.3-, 1.5-, 2.4-, and 5.6-fold higher total content of phenolic compounds, DPPH radical scavenging activity, ABTS radical scavenging activity, and tyrosinase and elastase inhibitory effects than the nonfermented R. micranthum Turcz. extract. These results indicated that fermented R. micranthum Turcz. extract using L. rhamnosus can be used for developing new natural functional ingredients for the health food or cosmetic industry.

Calamagrostis arundinacea (실새풀) 추출물의 항노화 및 항염증 활성

정회석(Hea Seok Jeong),이동호(Dong Ho Lee),이민성(Min-Sung Lee),허태임(Tae Im Heo),김동갑(Dong Kap Kim),오승환(Seung Hwan Oh),김두현(Du Hyeon Kim),김영수(Yeong-Su Kim),김대욱(Dae Wook Kim) 한국생명과학회 2021 생명과학회지 Vol.31 No.3

본 연구에서는 실새풀(Calamagrostis arundinacea)의 열수 추출물(Ca-HW)과 70% 에탄올에 추출된 추출물(Ca-E70)을 이용한 항노화 및 항염증 활성을 조사하였고, 또한 이들의 생리 활성 능력을 무세포와 세포 기반 시스템으로 조사하였다. 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical decolorization 방법으로 항산화 활성 평가를 실시한 결과, Ca-HW와 Ca-E70은 각각 27%와 48%의 DPPH 라디칼 소거능으로 항산화 활성을 나타냈다. 각 추출물에서는 RAW 264.7, B16F10 및 CCD986-sk 세포에서 독성, 세포증식 및 증진 효과는 없는 것으로 확인되었다. 멜라닌 생성과 관련 있는 B16F10 세포주에서 100 mg/ml 농도의 Ca-HW와 Ca-E70 처리구는 abutin 처리구에 비해 멜라닌 생성 억제 효과가 높은 것을 확인하였다. 인간의 섬유아세포인 CCD986-sk를 통한 pro-collagen 생합성에 미치는 Ca-HW와 Ca-E70의 영향을 조사하였더니 각각 24.69%와 12.55%가 증가하는 것으로 나타났다. LPS를 처리하여 염증반응을 유도 한 RAW264.7 세포에서 실새풀 추출물의 효과를 조사하였다. Ca-E70은 LPS에 의한 산화질소의 생성과 전염증성 사이토카인인 IL-6의 생성을 억제함으로써 염증 반응에 관여하는 것으로 보인다. 이러한 결과는 실새풀 추출물이 피부와 관련하여 항노화 및 항염증 능력이 있는 것을 제시한다. The anti-aging and anti-inflammatory activities of hot-water (Ca-HW) and 70% ethanol (Ca-E70) whole-plant Calamagrostis arundinacea extracts, as well as their bioactive potentials, were investigated using cell-free and cell-mediated experimental systems. Use of the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical decolorization assay to evaluate the antioxidant activity of the Ca-HW and Ca-E70 extracts revealed DPPH radical scavenging activities of 27% and 48%, respectively. Neither extract caused significant cytotoxicity, and both showed cell proliferation and promotion effects using RAW 264.7, B16F10, and CCD986sk cells. B16F10 melanoma cells showed higher melanin synthesis when treated with 100 mg/ml Ca-HW or Ca-E70 than with arbutin, indicating a stronger inhibitory effect of arbutin on melanin synthesis. Ca-HW and Ca-E70 increased pro-collagen biosynthesis in the human fibroblast CCD986-SK cell line by 24.69% and 12.55%, respectively. Analysis of the anti-inflammatory effects of different concentrations of Ca-HW and Ca-E70 in RAW264.7 cells revealed that Ca-E70 appeared to inhibit the lipopolysaccharide-induced production of nitric oxide and IL-6, a proinflammatory cytokine; therefore, Ca-E70 showed an anti-inflammatory effect. These results suggested that C. arundinacea extracts could have skin anti-aging and anti-inflammatory properties.

선달산(경상북도 봉화군) 일대의 관속식물상

안민우(Min Woo AN),정선(Seon Jeong),김재영(Jae Young Kim),조형준(Hyeong Jun Jo),허태임(Tae Im Heo),이혜정(Hye Jeong Lee),서을원(Eul Won Seo),정규영(Gyu Young Chung) 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.2

This study was investigated to elucidate the distribution of vascular plants and their usefulness of Seondalsan Mountain (1,236 m) in Bonghwa-gun, Gyeongsangbuk-do. The surveys were carried out 20 times from April in 2014 to October in 2020. The vascular plants of Seondalsan Mountain was consisted a total of 638 taxa based on the voucher specimens; 96 families, 341 genera, 562 species, 18 subspecies, 53 varieties, 5 forms. 20 taxa of the Korean endemic plants were recorded and 1 taxa of Critically Endangered (CR), 3 taxa of Vulnerable (VU) and 9 taxa of Least Concern (LC), designated by Korean Forest Service as rare plants, were investigated in this region. Furthermore, Ⅴ, Ⅳ and Ⅲ degrees of floristic regional indicator plants, designated by the National Institute of Ecology, were included 1 taxa, 11 taxa and 28 taxa, respectively. Among them, edible, medicinal, fragrant, industrial, ornamental, ecological restoration, forage/compost plants were included 440 taxa, 505 taxa, 19 taxa, 234 taxa, 335 taxa, 214 taxa and 269 taxa respectively. In addition, 30 taxa of naturalized plants were observed.

구상나무림의 종조성과 환경인자간 상관관계

박병주(Byeong Joo Park),김지동(Ji Dong Kim),이준우(Jun Woo Lee),조승완(Seung wan Cho),허태임(Tae Im Heo),이동혁(Dong Hyuk Lee),변준기(Jun Gi Byeon) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.2

This study was conducted to analyze community structure and species composition of Abies koreana forest. Field survey was carried out from June, 2019 to 2020, September. 121 plots (20×20 m) were set up, 5 herb layer plots (3×3 m) were constructed for each plot, and there, Diameter at Breast Height(DBH), height, environmental factor were measured. It was analyzed that water stress did not have a significant effect on the factors affecting the growth of A. koreana in Mt. Halla-san, and in the case of Mt. Deokyu-san, the more forest stands located at the ridge, the higher the tree density. It was found that the factors affecting the distribution of Abies koreana were not consistent according to the environment of study site.