유자의 종류별 생리화학적인 특성과 향기성분, 총 페놀 함량 분석

황성희,김민정,김강성,Hwang, Seong-Hee,Kim, Min-Jeong,Kim, Kang-Sung 한국식품영양학회 2013 韓國食品營養學會誌 Vol.26 No.4

Yuza (Citrus junos) has 3 varieties with variable physiochemical properties. This study analyzed these volatile compounds and physiochemical properties according to variety. Three Yuza varieties, native (Citrus junos I), improved I (Citrus junos I+Poncirus trifoliata), improved II (Citrus junos I+C. junos II) were used. The native Yuza weighted more than the improved varieties, but the peel ratio (weight of peel versus pulp) was high in improved one. Protein and ash contents were high in Improved I than native one. Native had 29.6mg% vit. C in pulp and improved I had 57.7mg% vit. C in peel. Free sugar was mainly fructose, and the main organic acid was citric acid in Yuza. Improved I Yuza had high free sugar contents, and the organic acid levels were high in improved II Yuza. Linoleic acid was the most prevalent fatty acid in Yuza; it was distributed in peel or pulp. The most common volatile flavor component was dl-limonene (64~70%); improved II Yuza showed significantly higher contents of dl-limonen and ${\gamma}$-terpinen. Total phenol level of Yuza was identical in all types, but peels had 2.5 times more than pulps. 재래유자, 개량종 I(유자+탱자), 개량종 II(유자+유자) 세가지 유자의 종류별, 부위별 이화학적인 특성과 유기산, 지방산 및 향기성분을 분석하였고, 총 페놀 화합물을 분석하는 실험을 수행하였다. 중량은 재래종이, 껍질(혹은 껍질+씨)의 비율은 개량종이 높았다. 단백질은 재래종보다 개량종I의 껍질에서 다소 높게 나타났고, 회분도 개량종의 껍질에서 다소 높았다. Vit. C는 과즙의 경우 재래종에서 29.6mg%로 껍질에서는 개량종 I이 57.7mg%로 다소 높았다. 유리당은 과당이 주였는데, 개량종 I에서 가장 높은 함량을, 유기산은 구연산이 대부분을 차지하였는데, 개량종 II에서 가장 유기산 함량이 높았다. 유자의 지방산 조성은 리놀레인산이 가장 많았고, 과피와 과즙에서 품종별 특징을 보이고 있었다. 향기성분은 dl-Limonene이 향기성분의 64~70%를 차지하는 물질로, gamma-terpinene과 함께 개량종 II에서 유의하게 높았다. 유자에 함유된 총 페놀 함량은 품종별로는 유의한 차이를 보이지 않았으나, 과즙에 비해 과피에 2.5배 정도 많은 양이 들어 있었다.

건조 방법에 따른 호박 분말 및 죽의 품질 특성

황성희,정헌식,윤광섭,Hwang Sung-Hee,Chung Hun-Sik,Youn Kwang-Sup 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.2

To develop a new instant pumpkin gruel food, this study investigated the dried powder and gruel quality characteristics depend on drying method. The pumpkin powder was dried by infrared and freeze drying, and then milled to 80 mesh, after which the manufactured gruel was mixed with glutinous rice by heating. The gruels prepared by dried pumpkin powder were compared with steamed and freeze dried powder as a control, the crude protein and total sugar contents were high in the infrared drying powder, but freeze drying kept more carotenoid content. Soluble solid of gruel was higher in the freeze dried powder, and steam treated powder showed increased L and b values. Sensory test was carried out to select proper drying methods with 5-point scale. The gruel with freeze dried powder gained the highest score in overall quality. These results suggest that freeze drying could be used for manufacturing high quality instant pumpkin gruel.

유자의 종류별 수확시기에 따른 유리당, 헤스페리딘, 나린진, 플라보노이드 함량과 항고혈압 활성 변화

황성희,장재선,김민정,김강성,Hwang, Seong-Hee,Jang, Jae-Seon,Kim, Min-Jeong,Kim, Kang-Sung 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.6

재래유자(C. junos I), 개량종 I(C. junos I+Poncirus trifoliata), 개량종 II(Citrus junos I+C. junos II) 세 가지 유자의 종류별 수확시기에 따른 유리당, 헤스페리딘, 나린진, 플라보노이드 함량과 항고혈압 활성을 알아보고자 실험을 수행하였다. 수확시기가 늦을수록 산도는 감소하고 당도는 증가하여 당산비는 증가하였고, 포도당, 서당은 수확시기에 따른 변화가 크지 않았으나, 과당은 유자가 충분히 익는 11월에 급격히 증가함을 보여주었다. 개량종 II는 10월 수확한 과피에서, 재래종은 10월 수확한 과즙에서 다른 품종보다 총 플라보노이드가 높았으며, 유자 과피의 hesperidin과 naringin은 유자가 미성숙했을 시기인 7월에 가장 높았고, 급격히 감소하고 있었다. 총 플라보노이드 중에서 hesperidin과 naringin이 차지하는 비율도 미숙과인 7월보다 11월에 현저히 감소하는 것으로 나타났다. ACE 저해 효과는 과즙과 과피에서 모든 수확시기에서 높게 나타났다. 과즙보다 과피에서 높게 나타났으며 품종별, 수확 시기별 차이는 관찰되지 않았으나 제철 11월에 수확한 재래종 과피에서 ACE 저해 효과가 가장 높았다. 따라서 hesperidin과 naringin을 이용하고자 할때는 미숙과를, 당도나 ACE 저해 효과를 이용하고자 할 때는 완숙과를 이용하는 것이 타당할 것으로 보인다. Yuza (Citrus junos) had 3 varieties and they had variable physiochemical properties. This study analyzed free sugar, hesperidine, naringin, flavonoid contents and antihypertensive activities according to variety and harvest time of Yuza. Three Yuza varieties, native (C. junos I), improved I (C. junos I + Poncirus trifoliata), improved II (C. junos I + C. junos II) were used. Harvest time could influence biochemical properties of Yuza such as acidity and $^{\circ}brix$. When the Yuza harvested at behind of season, the sugar/acid ratio went up because the acidity was decreased but sugar content was increased. Fructose content was dramatically high at November, Yuza of the season. Total flavonoids was high in pulp parts of improved II and in juice of native one harvested at October. The content of hesperidin and naringin in peels and juices were high in immature fruits fresh-picked at July since then they were decreased steadily and there were no difference according to varieties. The angiotensin converting enzyme (ACE) inhibition was powerful at pulp of Yuza in particular native one picked at November.

결합제가 표고버섯 과립의 이화학적 품질특성에 미치는 영향

황성희 ( Sung Hee Hwang ),김석중 ( Seok Joong Kim ),신승렬 ( Seung Ryeul Shin ),김남우 ( Nam Woo Kim ),윤광섭 ( Kwang Sup Youn ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2005 한국식품저장유통학회지 Vol.12 No.6

자포니즘으로서의 북유럽 소비에 대한 연구

황성희 ( Hwang Sung-hee ) 경희대학교 비교문화연구소 2016 비교문화연구 Vol.45 No.-

이 논문은 국내에서 수년 전부터 유행하고 있는 북유럽디자인 소비에 대한 분석을 통해 한국 소비문화의 흐름에서 일본의 역할을 조명하는 연구이다. 비서구 국가 중 유일하게 선진 자본주의 국가의 대열에 합류했고 1980년대에는 미국과 경제력을 다투었던 일본이었지만 문화적 영향력에 대한 평가는 낮았다. 그런 일본이 1990년대 들어 대중문화상품으로 동아시아 지역에 어필하다가 대중문화 상품의 인기가 가라앉은 후에는 만화, 게임, 애니메이션 등 오타쿠계 서브컬쳐로 글로벌한 문화적 영향력을 행사하고 있다. 이 글에서는 1990년대부터 부상한 일본 문화의 영향력을 새로운 자포니즘으로 보고 한국의 북유럽 소비가 자포니즘의 매개와 주도 하에 진행되어 왔음을 제시한다. 일본이 구성한 북유럽에 대한 의미와 상징이 한국의 북유럽 소비에서 관철되고 있다는 의미이다. 의미와 스타일의 측면에서 일본의 슬로무비는 북유럽디자인에 미국발 `킨포크`코드를 결합시켰다. 디자인의 측면에서는 아르누보를 매개로 일본 미학은 북유럽디자인과 시각적 유사성을 얻을 수 있었고 일본 가와이이 자카소품을 통해 북유럽디자인과 시각적 친숙함도 확보했다. 무엇보다 일본 잡화브랜드들이 출시한 북유럽풍 생활소품들을 통해 일상 속으로 북유럽디자인이 스며들었다. 또한 국내의 북유럽 소비는 일본 오타쿠들이 서브컬쳐를 포스트모던하게 소비하는 방식인 데이터베이스 소비방식으로 진행되고 있다. 일본이 만들어낸 북유럽에 대한 모에 요소가 한국에서도 북유럽 소비의 기호로 작동하고 있는 것이다. This article investigates the role of Japan in Korean consumption of Nordic design. In spite of the development of greater access to wide information and global markets, the popular trends in Korea have been mediated by Japan. The cultural power of Japan comes from otaku subculture. Japanese influence can be discussed by two sides. One is the images or symbols composing the Nordic style in Korea. The other is the way how to consume the Nordic design. Japanese neopop images combined with the Nordic design. Japanese `slow movie` has combined American Kinfolk style with Nordic style. `Database consumption` from otaku subcultre conceptualized by Azma Hiroki can be applied to Korean consumption of Nordic design.

북아메리카 원주민의 창조신화와 ‘구비문학’의 가치 탐구

황성희(Hwang Sung-Hee) 융합영어영문학회 2017 융합영어영문학(구.English Reading and Teaching) Vol.2 No.1

Almost all countries and cultures have narratives of the beginning of the world and foundation myths. Among those, the creation myth explains how things came into (human) being. The birth myth of a nation teaches their ancestors’ root or source and own symbolic culture. Many creation myths or narratives explain having the chaos or complete darkness before the creation of the world like Genesis in the Bible and making something out of a nothing existence like the American Indian myths. There is one difference to the American Indian creation folklores. They are delivered not by their own written texts but through oral tradition. These have been translated into English for describing American Indians’ earliest times and after the Creation Day. Their creation stories and oral traditions are rarely unified, have not been formalized or even have many variations within their different societies. Throughout Euro-American centric history, many American Indians were assimilated, persecuted, oppressed, massacred and had their connection to the land severed by being moved to reserves. As a result, many American native tribes today live among Eurocentric Christianity, while keeping their own traditional beliefs, customs and practices. The American Indians were represented or reconstructed not by their own languages but rather by written English through Euro-American perspectives. Because of this, American Indians’ tales could be distorted, or not be authentic. However, from the English texts on the creation myths of two North American native tribes, the Iroquois of the Northeast and the Pima in Arizona, these narratives can be compared to the Bible. Two American Indian tribes’ oral traditions have valuable meaning to study the correlations with: human beings, spirituality, hierarchical order, gender equality, eco-friendly thoughts, etc.

추출시간에 따른 더치커피 추출액의 페놀성분과 항산화효과의 변화

황성희 ( Seong Hee Hwang ),김강성 ( Kang Sung Kim ),강희주 ( Hee Joo Kang ),김민정 ( Min Jung Kim ) 대한보건협회 2013 대한보건연구 Vol.39 No.2

Objectives: This study was conducted to investigate change of the antioxidative activity and phenolic compounds contents in Dutch coffee by different extraction times. Methods: Chemical characteristics and DPPH radical scavenging activity in dutch coffee with different extraction times were analyzed. Results: Cold water dissolved more coffee ingredients in the early extacts. Crude protein, crude lipid, soluble solids, crude ash in 0-3 hour extracts were 2 times more than in the latter extracts. However, total phenolic compounds were not changed durng the extractoin time of 0∼6 hous. The latter extracts had high DPPH radical scavenging activity. Conclusion: Dutch coffee extracts had enough antioxidative and bioactive ingredients.

Reed-Solomon Product Code의 에러 정정 능력 평가 방법

황성희(Sung-hee Hwang),이윤우(Yoon-woo Lee),한성휴(Sung-hyu Han),류상현(Sang-hyun Ryu),신동호(Dong-ho Shin),박인식(In-sik Park) 대한전기학회 2001 대한전기학회 학술대회 논문집 Vol.2001 No.7

새마을운동 인식 제고 프로그램이 유아의 친사회적 행동에 미치는 영향

황성희(Hwang, Sung Hee),이슬지(Lee, Seul Ji),김영민(Kim, Young Min),배현순(Bae, Hyun Soon) 한국생활과학회 2022 한국생활과학회 학술대회 Vol.2022 No.11

북아메리카 원주민의 창조신화와 ‘구비문학’의 가치 탐구

황성희(Hwang Sung-Hee) 한국영어독서교육학회 2017 ENGLISH READING AND TEACHING Vol.2 No.1

Almost all countries and cultures have narratives of the beginning of the world and foundation myths. Among those, the creation myth explains how things came into (human) being. The birth myth of a nation teaches their ancestors’ root or source and own symbolic culture. Many creation myths or narratives explain having the chaos or complete darkness before the creation of the world like Genesis in the Bible and making something out of a nothing existence like the American Indian myths. There is one difference to the American Indian creation folklores. They are delivered not by their own written texts but through oral tradition. These have been translated into English for describing American Indians’ earliest times and after the Creation Day. Their creation stories and oral traditions are rarely unified, have not been formalized or even have many variations within their different societies. Throughout Euro-American centric history, many American Indians were assimilated, persecuted, oppressed, massacred and had their connection to the land severed by being moved to reserves. As a result, many American native tribes today live among Eurocentric Christianity, while keeping their own traditional beliefs, customs and practices. The American Indians were represented or reconstructed not by their own languages but rather by written English through Euro-American perspectives. Because of this, American Indians’ tales could be distorted, or not be authentic. However, from the English texts on the creation myths of two North American native tribes, the Iroquois of the Northeast and the Pima in Arizona, these narratives can be compared to the Bible. Two American Indian tribes’ oral traditions have valuable meaning to study the correlations with: human beings, spirituality, hierarchical order, gender equality, eco-friendly thoughts, etc.