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정희경,김경제,서경순,진성우,고영우,임승빈,하늘이,김중범,Jeong, Hee-Gyeong,Kim, Kyung-Je,Seo, Kyoung-Sun,Jin, Seong-Woo,Koh, Young-Woo,Im, Seung-Bin,Ha, Neul-I,Kim, Jung-Beom 한국버섯학회 2021 한국버섯학회지 Vol.19 No.1
국내산과 중국산 능이에 대한 다량미네랄, 미량미네랄 및 유해중금속 함량을 비교하여 원산지 판별 가능성을 분석하고자 하였다. 능이의 미네랄 함량은 원자흡광광도계(Atomic absorption spectrophotometer, AAS) 및 유도결합플라즈마 질량분석기(Inductively coupled plasma mass spectrometer, ICP-MS)를 사용하여 분석하였다. 국내산 능이의 Na, Mg, K 및 Ca 함량은 각각 170.3±44.0 mg/kg, 81.3±20.8 mg/kg, 1,123.8±274.3 mg/kg 및 12.1± 4.1 mg/kg으로 분석되었으며, 중국산 능이는 각각 112.2±40.8 mg/kg, 297.8±20.9 mg/kg, 10,938.4±2,914.1 mg/kg 및 52.5±27.7 mg/kg으로 분석되어 유의적 차이가 있는 것으로 나타났다. 미량미네랄 및 유해중금속 함량은 유의적 차이가 나타나지 않았다. 따라서 능이의 원산지 판별 지표 확립을 위하여 향후 다수의 국내산 및 중국산 능이를 사용한 Na, Mg, K 및 Ca 함량 비교분석이 필요한 것으로 판단되었다. The mineral contents of domestic and Chinese Sarcodon aspratus were analyzed for comparing the differences in the mineral contents according to the production sites. The mineral contents of 10 domestic and 10 Chinese S. aspratus were analyzed by using an atomic absorption spectrophotometer and an inductively coupled plasma mass spectrometer. The sodium, magnesium, potassium, and calcium contents of domestic S. aspratus were 170.3±44.0 mg/kg, 81.3±20.8 mg/kg, 1,123.8±274.3 mg/kg, and 12.1±4.1 mg/kg, respectively, while those of Chinese S. aspratus were 112.2±40.8 mg/kg, 297.8±20.9 mg/kg, 10,938.4±2,914.1 mg/kg, and 52.5±27.7 mg/kg, respectively. There were no significant differences in the micro mineral contents and hazardous heavy metal contents between domestic and Chinese S. aspratus, while there was a significant difference in the macro mineral contents between domestic and Chinese S. aspratus. Thus, the comparative analyses of the sodium, magnesium, potassium, and calcium contents of many domestic and Chinese S. aspratus are required to determine their production sites in the future.
국내산과 수입산 송이의 다량 및 미량 미네랄 함량 비교
정희경,김경제,서경순,진성우,고영우,임승빈,하늘이,김중범,Jeong, Hee-Gyeong,Kim, Kyung-Je,Seo, Kyoung-Sun,Jin, Seong-Woo,Koh, Young-Woo,Im, Seung-Bin,Ha, Neul-I,Kim, Jung-Beom 한국식품위생안전성학회 2022 한국식품위생안전성학회지 Vol.37 No.5
The mineral content of Tricholoma matsutake was evaluated for comparison of mineral contents according to the area of cultivation. Ten domestic and thirty Chinese (10 Yanji, 10 Yunnan and 10 Tibet) T. matsutake specimens were assessed using an atomic absorption spectrophotometer (AAS) and inductively coupled plasma mass spectrometer (ICP-MS). The Na, Mg, K, and Ca contents of domestic T. matsutake were 128.12±85.25 mg/kg, 218.52±105.35 mg/kg, 7,534.58±2,691.52 mg/kg, and 17.69±7.14 mg/kg, respectively, while those of Yanji T. matsutake were 124.89±57.24 mg/kg, 64.07±27.52 mg/kg, 1,439.18±311.04 mg/kg, and 10.88±4.52 mg/kg, respectively. The Na, Mg, K, and Ca contents of Yunnan T. matsutake were 90.78±23.23 mg/kg, 77.40±28.36 mg/kg, 1,446.29±126.33 mg/kg, and 28.42±5.18 mg/kg respectively, while those of Tibet T. matsutake were 143.50±41.54 mg/kg, 124.64±50.18 mg/kg, 3,530.95±2,714.99 mg/kg, and 21.05±8.71 mg/kg, respectively. The Cu contents of domestic, Yanji, Yunnan, and Tibet T. matsutake were 105.43±32.97 mg/kg, 19.92±8.95 mg/kg, 54.51±16.91 mg/kg, and 64.80±23.01 mg/kg, respectively. Both domestic and Chinese T. matsutake samples showed significantly different K, Mg, and Cu levels in this study. Therefore, a comparative evaluation of the K, Mg, and Cu contents of multiple domestic and Chinese T. matsutake varieties is needed to determine the appropriate area of cultivation in the future.
정희경(Jeong, Hee-Kyoung),문성미(Moon, Seongmi) 한국간호교육학회 2024 한국간호교육학회지 Vol.30 No.1
Purpose: This study aimed to identify the needs for the managerial competencies of nurse managers in general hospitals. Methods: A cross-sectional design was used. The participants were 203 nurse managers, 141 head nurses or unit managers, and 62 directors or team managers from 17 general hospitals. Data were collected by a self-administered questionnaire with 42 nursing management competencies and 181 behavioral indicators. Participants rated the importance and performance of each indicator. Data were analyzed using a paired t-test, independent t-test, importance-performance analysis, Borich’s needs assessment model, and locus for focus model. Results: In all 42 competencies, importance was rated significantly higher than performance. The head nurses or unit managers had high demands for “human resource development,” “performance management,” and “information management,” while the directors or team managers had high demands for “change management.” Competencies in high demand in both groups were “development of nursing standards” and “self-management.” Conclusion: Based on the results, it is necessary to select priorities and prepare educational content when developing educational programs to strengthen the nursing management competencies of general hospitals’ nurse managers.
정희경(Jeong, Hee-kyoung),윤은경(Yun, Yean-Kyung) 한국실내디자인학회 2015 한국실내디자인학회 학술대회논문집 Vol.2015 No.10
In the present age when low fertility and delivery in one`s old age are common according as women`s socio-economic position improves on the strength of their brisk entry into society, women`s quality of life is getting better, and accordingly, their concern for matters from pregnancy to delivery is steadily increasing, and their needs for diverse services and specialized postnatal care are rising. However, the facilities, which are equipped with the aspects of a specialized postnatal center demanded by new mothers wishing for much better services, are woefully deficient in reality; hereupon, this study grasped the problems in a postnatal care center which is operated by a gyne OB clinc in a combined manner, and the needs of new mothers intending to use the process from prenatal care in one space, based on which this study did research on service improvement program types and service space programs; as a result of case analysis of a postnatal care center through this researching process, this study could learn that application of service space was insufficient, and there is the need for a little more specialized, systematic space. As an effort to accurately grasp and make up for such problems, the institutionalization plan for postnatal care should be arranged for the time to come, and also there should be the research on diverse approaches to this matter.
Phytobiotic 소재 선발을 위한 약용식물 추출물의 항산화 및 항균 활성
정희경(Hee?Kyoung Jung),김영진(Young?Jin Kim),박병권(Byung?Kwon Park),박승춘(Seung?Chun Park),정유석(Yoo?Seok Jeong),홍주헌(Joo?Heon Hong) 한국식품영양과학회 2007 한국식품영양과학회지 Vol.36 No.10
Phytobiotic으로 활용 가능한 소재를 선발하기 위하여 9종의 약용식물인 진피, 매자나무 뿌리, 매자나무 줄기, 상백피, 석곡, 석창포, 취나물, 택사, 호장근의 열수 추출물을 대상으로 항산화성 및 항균활성을 조사하였다. 호장근은 총 폴리페놀 함량이 725.8 ㎍/mL로 가장 높았으며, 전자공여능이 86.9%, 아질산염 소거능이 92.7%로 우수한 항산화성을 나타내었다. 또한 호장근은 0.8 ㎎/mL의 농도에서 P. aeruginosa, E. coli, B. cereus, S. Typhimurium, L. monocytogenes, K. pneumoniae, S. aureus의 생육을 저해하였다. 호장근 추출물은 7종의 균주에 대해 항균활성을 나타내었고, 특히 K. pneumoniae, S. aureus에 대해서 지속적인 항균활성을 나타내었다. K. pneumoniae, S. aureus에 대한 IC50은 각각 6.24 ㎎/mL, 1.8 ㎎/mL이었다. 호장근은 항산화성 및 항균활성을 동시에 가지는 기능성 약용식물 추출물로 가축의 phytobiotic 소재로 활용 가능함을 확인하였다. For this study, plant material for development of phytobiotics (feed additives made with plant extract) was screened. Among hot-water extracts of 9 medicinal plants, Fallopia japonica showed the highest antioxidative activity; the electron donating ability (EDA) and nitrite scavenging ability were 86.9% and 92.7%, respectively. Also, F. japonica had the antimicrobial activity for Pseudomonas aeruginosa, Escherichia coli, Bacillus cereus, Salmonella Typhimurium, Listeria monocytogenes, Klebsiella pneumoniae, Staphylococcus aureus. Specially, antimicrobial activity of F. japonica against K. pneumoniae, and S. aureus was very strong. IC50 of F. japonica against K. pneumoniae, and S. aureus was 6.24 ㎎/mL and 1.8 ㎎/mL respectively. These results suggested that F. japonica was a candidate for a phytobiotic material.
정희경(Hee Kyoung Jung),김길수(Kil-Soo Kim),정유석(Yoo Seok Jeong) 한국식품영양과학회 2014 한국식품영양과학회지 Vol.43 No.3
본 연구에서는 야관문 추출물의 마우스 대식세포에 대한 항염증 활성과 창상유발 동물실험 모델을 통한 창상치유 효과를 조사하였다. RAW264.7 세포에서 야관문 추출물은 0.2mg/mL 이하 농도에서 세포생존에 영향을 주지 않았으며, 염증반응이 활성화된 대식세포에 대해 농도 의존적으로 유의적인 NO 생성 감소를 나타내었다. 창상유발 동물실험 모델에서 야관문 추출물을 함유한 화장품 조성물의 창상치유 효과에 대해 육안적으로 관찰한 결과, SCO군과 CCO군보다 야관문 추출물을 함유한 SSP군에서 약 20~30% 빠른 상처 면적 감소 효과를 나타내었으며, 반흔 크기 역시 약 12% 작게 형성되었다. 또한 SSP군 조직의 외피와 진피 재생회복속도가 빨라진 것을 Masson"s trichrome 염색을 통해 확인할 수 있었으며, VEGF 및 TGF-β1 유전자 발현이 SCO군과 비교 시 각각 감소 및 증가하였다. 이러한 결과는 야관문 추출물이 항염증 및 교원질 생성 유도를 통한 조직재생 활성에 기여하여 창상치유 속도를 가속화하고 반흔 면적을 감소시킬 수 있는 피부 창상치유와 관련한 코스메슈티컬 소재로써 산업적 활용이 가능함을 보여준다. In this study, the anti-inflammatory effects of Lespedeza cuneata extract on macrophages and wound-healing in wound-induced animal experiments were investigated. In an anti-inflammatory test, 0.1 mg/mL of Lespedeza cuneata extract did not affect growth of RAW 264.7 cells, and Lespedeza cuneata extract suppressed nitric oxide (NO) generation from inflammation-induced macrophages in a concentration-dependent manner. Wounds on the skin of rats were treated with vehicle containing Lespedeza cuneata extract (SSP), vehicle (SCO), and commercial ointment (CCO). The wound and scar sizes in the SSP group were significantly reduced in comparison to the SCO and CCO groups (P<0.05). The epidermis and dermis of the SSP group also recovered faster than the SCO group based on Masson"s trichrome staining. The gene expression levels of vascular endothelial growth factor (VEGF) decreased and transforming growth factor-beta 1 (TGF-β1) increased in wound tissue from the SSP group compared to that from the SCO group. These results show that Lespedeza cuneata extract accelerates wound-healing through anti-inflammatory activity and induction of collagen regeneration as well as reduces the scar area surrounding wounds. Accordingly, Lespedeza cuneata extract could be useful as a cosmeceutical in the cosmetic industry.