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.

국내산과 중국산 능이의 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 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.

소아에서 발생한 갑상설관낭종의 재발에 영향을 미치는 위험인자

정희경,박진영,Jung, Hee-Kyung,Park, Jin-Young 대한소아외과학회 2011 소아외과 Vol.17 No.1

Thyroglossal duct cysts (TGDC) are the most common type of congenital developmental anomaly encountered in the anterior midline of the neck in childhood. The aim of the study was to evaluate the clinical characteristics of TGDC and identify any factors that could be related to recurrence after surgery. This study consisted of a retrospective chart review of 45 patients treated at Kyungpook National University Hospital for TGDC between 1990 and 2008. All records were reviewed for age and sex, length of history, presentation, diagnostic methods, sizes and locations of cyst, surgical management, histopathology of the lesion and recurrences. The statistical analysis of risk factors for recurrence was made using the Fisher's exact test with a significance level of p (0.05. The male to female ratio was 2.2:1 with a male preponderance. The mean age at operation was 5 years and 2 months (4 months - 17 years). The most common presenting symptom was a nontender cervical mass (78 %). Most TGDC were found in the midline position. Twenty four were infrahyold, 17 were hyoid, and 4 were suprahyoid level. Forty one (91 %) patients received the Sistrunk operation, and 4(9 %) patients received Cyst excision. Postoperative a seroma developed in six patients in the early postoperative days. There were a total of 3(6.6 %) recurrences, 2 in patients who had excision only and in one patient who had the Sistrunk operation. Univariate analysis for risk factors with recurrence showed that there was no statistical relationship between the presence of preoperative infection and the development of recurrence. The removal of hyoid bone along with TGDC was a statistically significant risk factor for recurrent disease. This study suggests that the Sistrunk operation Is the treatment of choice for TGDC in order to reduce recurrence.

Ceromer의 법랑질 및 금합금에 대한 마모도 비교

정희경,양홍서,Jung Hee-Kyung,Yang Hong-So 대한치과보철학회 2001 대한치과보철학회지 Vol.39 No.1

This study was performed to compare the abrasiveness and wear resistance of several restorative materials occluding enamel and gold alloy. Intact labial surface of bovine incisor and the plain portion of type III gold alloy were used as plate specimens, and pin specimens were fabricated using $Artglass^{(R)},\;Targis^{(R)},\;Sculpture^{(R)}$. After two-body wear test using pin and plate model, amount of vertical height loss of plate and pin specimens were measured and statically analyzed. The amount of vertical height loss of plate specimens against pin specimens were measured by a roughness measurement instrument. The amount of vertical height loss of pin specimens against plate specimens were measured by an image analyzing program after taking scanning electron micrographs of pin specimens. The results were as following. 1. As fir the amount of enamel wear. gold group showed least amount of wear. There was no significant difference among Sculpture, Targis and Artglass groups(p<0.05). 2. As for the amount of gold wear Sculpture group standed first and Targis and Artglass group followed respectively, and there was significant difference between Sculpture and Artglass groups(p<0.05). 3. As for the amount of restorative materials against enamel, Artglass group showed greatest, and there was no significant difference among gold. Sculpture, Targis groups(p<0.05). 4. As for the amount of restorative materials against gold, Artglass group standed first and Targis and Sculpture group followed respectively, and there was significant difference among each groups(p<0.05).

미생물,발효,생물공학 : Auxin, Siderophore, 및 Cellulase 생산성 다기능 식물생장촉진미생물 Bacillus Licheniformis K11의 선발 및 식물생장촉진 효과

정희경 ( Hee Kyung Jung ),김진락 ( Jin Rak Kim ),우상민 ( Sang Min Woo ),김상달 ( Sang Dal Kim ) 한국응용생명화학회 2007 Applied Biological Chemistry (Appl Biol Chem) Vol.50 No.1

조선시대의 지눌사상 이해

정희경(Jung Hee Kyung) 불교학연구회 2018 불교학연구 Vol.55 No.-

현재 학계에서는 고려시대 지눌의 사상을 선교겸수(禪敎兼修)와 사교입선(捨敎入禪)으로 해석하면서, 조선시대를 거쳐 오늘날까지 그대로 계승된 한국불교의 수행 전통으로 규정하고 있다. 다카하시 토오루(高橋亨)가 􋺷이조불교􋺸(1929)에서 청허휴정의 사상을 선교겸수후 좌선견성으로 해석하고 그 연원을 지눌에게서 찾은 이래, 국내학계에서는 지눌의 사상을 선교겸수･사교입선으로 해석하게 되었고, 이후 지눌의 사상이 조선시대에 끼친 영향을 선교겸수･사교입선의 전통 계승이라는 측면에 초점이 맞추어져 연구되어 왔다. 특히 지눌의 저서 􋺷법집별행록절요병입사기􋺸가 전통 계승의 가장 중요한 근거자료로 제시되었는데, 이는 청허휴정의 􋺷선가귀감􋺸에 인용된 지눌의 􋺷법집별행록절요병입사기􋺸일부 내용에 의거한 것이다. 본 논문은 이러한 해석에 이의를 제기한다. 지눌의 사상은 선교겸수나 사교입선으로 볼 수 없고, 또한 원형 그대로 전승된 것이 아니라 각 시대별 상황과 문제의식에 따라 변화 수용되었으며, 조선시대에서도 다양한 해석이 존재했었음을 주장하고자 한다. 이를 위해 우선 조선시대에서는 지눌사상을 어떻게 이해하고 있었는지 검토하였다. 15세기, 16-17세기, 18세기로 시기를 분류하고 지눌의 저서 􋺷법집별행록절요병입사기􋺸를 중심 텍스트로 삼아 각 시기별 관련 인물들의 텍스트 이해를 분석하였다. 결론적으로 조선시대의 지눌사상 이해는 크게 3가지변화 과정을 거친 것으로 보인다. 첫 번째, 선과 교의 대립을 지양하고 선과 교를 화회(和會)시킨 내용으로 이해한 경우이다. 두 번째, 먼저 교를 공부하고 후에 선을 수행해야 비로소 출신활로(出身活路)를 얻을 수 있다는 내용으로 변형시켜 수용한 경우이다. 세 번째, 선과 교의 관점을 떠나 의리선(義理禪)과 격외선(格外禪)의 단계적 선 수행 내용으로 이해한 경우이다. 조선시대에서는 선과 교의 조화를 추구하던 시기, 선 우위의 통합체제를 구축하려던 시기, 강학을 위한 문헌해석에 중점을 두던 시기에 따라 각각 지눌사상에 대한 이해도 변화했다고 할 수 있다. The current academic circles interpret the thought of Jinul, a Seon Priest in Goryo Period, as Seongyugyeomsu (禪敎兼修) and Sagyoipseon (捨敎入禪) and recognize that his teaching has been part of Korean Buddhist practice tradition until present day via Joseon Dynasty. This paper raises an objection to this interpretation. Jinul’s thought can never be regarded as Seongyugyeomsu or Sagyoipseon, and, in fact, has not been inherited in its original form. Rather, it has been changed and accepted according to situations or critical views of each period. This study also attempts to demonstrate that there were various kinds of interpretations through history. For this, I first reviewed how Jinul’s thought was understood in Joseon Dynasty. It divided the era into three periods: the 15th century, the 16-17th centry and the 18th century. Then, it analyzed main figures’ understandings of Beopjipbyeolhaengrokjeolyobyongipsagi, the core text, by periods. First, it was understood as a content that sublates confrontation between Seon and Gyo and harmonizes them. Second, the modified content is accepted in which Chulshinwhalro(出身活路) cannot be acquired until Gyo is first learned, and then Seon is practiced . Third, it is understood as the content of gradual Seon practice composed of Uiriseon(義理禪) and Gyeokoeseon(格外禪). In conclusion, it can be found that understandings of Jinul’ thought were varied by three periods in the Joseon Era: A period that the harmonization between Seon and Gyo was pursued; a period that the integrative system in which Seon was prioritize was attempted to be established; and a period that the literature interpretation for lectures was emphasized.

장기계측에 기반한 초고층 RC 건축물 감쇠비와 고유진동수의 응답의존성 분석

정희경(Jung, Hee-Kyung),김홍진(Kim, Hong-Jin),최선영(Choi, Sun-Young) 대한건축학회 2015 大韓建築學會論文集 : 構造系 Vol.31 No.1

The amplitude dependence of the natural frequency and damping ratio of tall RC building is investigated based on the long term measurement data. In order to verify the identified dynamic properties, the time domain and frequency domain methods are used and the results are compared. It was found that the natural frequency decreases as the response increases clearly. On the other hand, there is no noticeable response dependancy of damping ratio even though the damping ratio increases slightly as the response increases.

스카프의 조형미를 응용한 의상디자인 연구

정희경(Hee Kyung Jung),김정혜(Jung Hae Kim) 한국복식학회 2002 服飾 Vol.52 No.5

With such basic conceptions in mind, this study was aimed at reviewing the unique formative aesthetics of scarves for creation of modern apparel design. To this end, the drapeability of the rhythmically wrinkled fabric of scarf of scarf as well as its tying and enclosing representation were introduced into the apparel details and silhouette to create an apparel design flattering the moderns unique sense of aesthetics and emotion. In the same vein, threads were superimposed on the planar fabric to express a sense of volume and thereby, pursue a unique decorative effect of rich texture. Specifically, the objectives of this study are to highlight the practical use of scarf warming and its decorative formative aesthetics and thereby, apply it to apparel designs and develop an art fabric using the machine embroidery technique, and ultimately, suggest the possibility of unique but highly value-added apparel designs.

포공영의 열수 및 에탄올 추출물의 기능적 생리활성

임애경(Ae-Kyung Lim),김정옥(Jung-Ok Kim),정미정(Mee-Jung Jung),정희경(Hee Kyoung Jung),홍주헌(Joo Heon Hong),김대익(Dae-Ik Kim) 한국식품영양과학회 2008 한국식품영양과학회지 Vol.37 No.10

포공영의 총 페놀함량에서는 열수 추출물 7.80±0.97㎎/g, 에탄올 추출물 9.12±0.51 ㎎/g으로 나타났다. 플라보노이드함량은 열수 추출물 54.20±1.95 ㎎/g, 에탄올 추출물 79.43±4.44 ㎎/g으로 항산화 활성에 관련된 페놀 및 플라보노이드 화합물들이 에탄올 추출물에 많이 존재함을 확인할 수 있었다. 전자공여능에 있어서도 포공영 에탄올 추출물이 열수 추출물 IC??값에 비해 3배 정도의 뛰어난 활성을 보였다. 아질산염 소거능은 모든 pH 조건하에서 에탄올 추출물이 열수 추출물보다 높은 아질산염 소거능을 나타내었으며, pH가 증가할수록 감소하였다. SOD 유사활성을 측정한 결과 열수 추출물에서는 18.34~37.26 ㎍/mL, 에탄올 추출물에서는 16.60~49.03 ㎍/mL의 범위로 분석되었으며, 농도에 따른 유의적 증가현상을 나타내었다. Tyrosinase 및 elastase 저해활성은 모든 추출물에서 대조구에 비해 다소 약한 활성을 나타내었다. 포공영 추출물은 뛰어난 항산화 활성을 나타나 기능성 식품 및 화장품 소재로 개발 가능성이 높을 것으로 사료된다. This study was conducted to investigate the functional biological effects of hot water and ethanol extracts from Taraxacum mongolicum (TM). Then, the hot water and ethanol extracts of TM were measured for total flavonoids content, total phenolics content, electron donating ability, nitrite-scavenging ability, SOD-like activity, tyrosinase inhibitory effect, and elastase inhibitory effect. Total flavonoids contents of hot water and ethanol extracts from TM were 7.80±0.97 ㎎/g and 9.12±0.51 ㎎/g, respectively, and total phenolics contents were estimated as 54.20±1.95 ㎎/g for water extract and 79.43±4.44 ㎎/g for ethanol extract. The RC?? values for electron donating ability of hot water and ethanol extracts were 943.98 ㎍/mL and 309.41 ㎍/mL. SOD-like activity and nitrite-scavenging ability were dependent on concentration of hot water and ethanol extracts, and the activity of ethanol extract was higher than that of hot water extract. However, hot water and ethanol extracts from TM showed no inhibitory activities on the elastase and tyrosinase inhibitory activities. Based on the above results, the ethanol extract of TM seems to be the most pertinent for use as functional food and cosmetic.

신선초 녹즙이 사염화탄소 투여에 의한 흰쥐의 간 손상에 미치는 영향

정희경(Hee-Kyoung Jung),박평심(Pyung-Shim Park),허남칠(Nam-Chil Huh),김성오(Sung-Oh Kim),김경수(Kyung-Su Kim),이명렬(Myung-Yul Lee) 한국식품영양과학회 1998 한국식품영양과학회지 Vol.27 No.3

신선초 녹즙이 사염화탄소에 의한 흰쥐의 간 손상에 미치는 영향을 알아보기 위하여 체중 80~100g되는 Sprague-Dawley계 흰쥐를 대조군, 신선초 녹즙 투여군, 사염화탄소 투여군 및 신선초 녹즙을 투여한 후 사염화탄소를 투여한 군으로 나눠 basal diet를 급이하면서 4주간 사육한 후 혈청 중의 transaminase(GOT 및 GPT), 간중의 lipid peroxide 함량, glutathion함량 및 항산화효소인 SOD, catalase 및 GSH Px 등의 변화를 관찰하였다. 사염화단소 (0.5㎎/㎏) 투여군의 혈청 중 GOT 및 GFT활성도, 간중의 TBA 반응생성물량은 대조군에 비하여 현저히 증가되었으나, 4주간 신선초 녹즙을 투여한 후 사염화탄소를 투여할 때 사염화탄소만을 투여한 군에 비하여 각각 유의성 있는 감소효과를 보였다. 또한 사염화탄소로 감소된 glutathion량은 신선초 녹즙 투여 후 사염화탄소를 투여함으로써 대조군에 근접하게 증가되었다. 유리기 해독계 효소인 SOD, catalase 및 GSH Px 등의 활성도도 사염화탄소 투여로 모두 증가되었으나, 신선초 녹즙 투여 후 사염화탄소 투여로 증가된 SOD 및 GSH Px는 사염화탄소만을 투여한 군에 비하여 유의한 감소효과를 나타냈으며, catalase는 감소되었으나 유의성은 보이지 않았다. 이상의 실험결과에서 사염화탄소 투여로 혈청 및 간 중의 각종 활성효소 및 지질과산화반응이 현저히 증가되었음은 간세포에 손상이 유발을 나타내는 것으로 생각되고, 신선초녹즙투여 후 사염화탄소를 투여한 경우 사염화탄소만을 투여한 군에 비하여 유의성 있게 감소되었는데 이는 신선초 녹즙에는 유리기 해독효소인 SOD, catalase 및 GSH-Px 활성을 증가시키는 free radical의 생성을 감소시키는 생리 활성을 가지는 것으로 추정되어 지며 또한 신선초 녹즙이 간보호 기능을 할 수 있을 것으로 사료된다. To investigate effects of Angelica keiskei Koidz green juice on the liver damage of CCl₄-treated rats, Sprague-Dawley male rats weighing 80~100g were divided into 4 groups of control group(CON), Angelica keiskei Koidz green juice-treated group(ANJ), CCl₄-treated group(CCL) and Angelica keiskei Koidz green juice and CCl₄-treated group(ACL). Each group was sacrified after feeding for 4 weeks and examined the activities of transminase(sGOT, sGPT), superoxide dismutase(SOD), catalase and glutathione peroxidase(GSH-Px), and contents of lipid peroxide and glutathione in liver. The activities of sGOT and sGPT, and content of lipid peroxide after CCl₄ treatment were markedly increased, compared to CON, but those levels were significantly decreased by the pretreatment of Angelica keiskei Koidz green juice as compared to CCL. The activities of SOD, catalase and GSH-Px were elevated by CCl₄-treatment as compared to control group, and concomitant treatment of Angelica keiskei Koidz and CCl₄ decreased those levels significantly except the activity of catalase. The hepatic content of glutathione was decreased by CCl₄ and increased more abundant by Angelica keiskei Koidz administration than CCl₄ treated group. These results suggest that Angelica keiskei Koidz green juice is believed to have a possible protective effect for the carbon tetrachloride-induced hepatotoxicity in rats.