구기자 추출물 함유 음료의 산화방지활성, 항당뇨효과, 유리아미노산과 무기질 함량

이경애,Lee, Kyong-Ae 한국식품조리과학회 2015 한국식품조리과학회지 Vol.31 No.2

구기자의 물추출물 및 50% 에탄올추출물을 이용한 음료의 유리아미노산, 무기질, 산화방지효과, ${\alpha}$-glucosidase 저해활성을 분석하였다. 두 음료에는 6종의 필수 아미노산(isoleucine, leucine, lysine, methionine, threonine, valine)을 포함한 15종의 유리아미노산과 6종의 유도체 등 21종의 아미노산 및 그 유도체가 분석되었다. 물추출물 이용음료와 에탄올추출물 이용음료의 주요 유리 아미노산은 asparagine(115.23, 51.95 mg%), methionine(20.02, 22.07 mg%), aspartic acid (19.65, 13.72 mg%), taurine (18.64, 22.44 mg%)이었으며 무기질은 K(438.80, 426.40 mg%)이 가장 많이 함유되어 있었으며 Mg>Na>Ca>Zn>Fe 순이었다. 산화방지효과는 DPPH 라디칼 소거능과 ABTS 라디탈 소거능으로 측정하였다. 에탄올추출물 이용음료는 물추출물 이용음료에 비해 폴리페놀, 플라보노이드 함량이 높았으나 두 음료의 DPPH 라디칼 소거능과 ABTS 라디칼 소거활성에는 유의적 차이가 없었다. 에탄올추출물 이용음료는 대조군인 acabose에 비해 높은 ${\alpha}$-glucosidase activity 저해활성을 나타내어 혈당저하 효과가 확인되었다. 따라서 50% 에탄올 추출물이 물추출물보다 음료 제조에 적합한 것으로 생각된다. Free amino acid and mineral analysis of beverages with Gugija (Lycii fructus) extracts performed to determine the antioxidative and anti-diabetes activities of the beverages. The four major free amino acids in the water- or ethanol-extracts of the Gugija beverages were asparagine (115.23, 51.95 mg%), methionine (20.02, 22.07 mg%), aspartic acid (19.65, 13.72 mg%) and taurine (18.64, 22.44 mg%). The mineral contents of the Gugija beverages with water- and ethanol-extracts were in the order K>Mg>Na>Ca>Zn>Fe. Antioxidant activity determined by DPPH and ABTS radical scavenging activity. There was no significant difference in DPPH and ABTS radical scavenging activities between the water-extract beverages and the ethanol-extract beverages, although more phenolics and flavonoids were found in the ethanol-extract beverage. Higher anti-${\alpha}$-glucosidase activity was observed in the ethanol-extract beverage compared to acabose, which was used as the control and is an inhibitor of ${\alpha}$-glucosidase, suggesting that the Gugija beverage with ethanol extract could be a potential hypoglycemic agent.

맥문동의 물추출액 및 에탄올추출액 이용 음료의 산화방지 활성

이경애,박진숙,Lee, Kyong-Ae,Park, Jin-Sook 한국식품조리과학회 2014 한국식품조리과학회지 Vol.30 No.6

맥문동의 물추출액 및 70% 에탄올 추출액을 이용한 음료의 산화방지 활성과 유리아미노산, 무기질, 총사포닌, 폴리페놀, 플라보노이드 함량을 분석하였다. 산화방지 활성은 전자공여능과 ABTS 라디탈 소거능으로 측정하였다. 맥문동 에탄올추출액 이용 음료는 물추출액 이용 음료에 비해 총사포닌, 폴리페놀, 플라보노이드 함량이 높았으나 두 음료의 전자공여능과 ABTS 라디칼 소거활성에는 큰 차이가 없었다. 두 음료에는 6종의 필수 아미노산(이소루신, 루신, 리신, 메티오닌, 트레오닌, 발린)을 포함하여 20종의 아미노산 및 그 유도체가 함유되어 있었다. 맥문동 물추출액 이용 음료와 에탄올 추출액 이용 음료의 주 유리 아미노산은 아스파라긴(58.30, 60.68 mg%), 메티오닌(15.10, 13.95 mg%), 프롤린(12.31, 14.00 mg%), 알라닌(11.05, 11.46 mg%)이었으며 가장 많이 존재하는 무기질은 포타슘(238.68, 244.32 mg%)이었다. The antioxidative activities of beverages with water or ethanol extracts from Maegmundong (Liriope platyphylla) were investigated with free amino acid and mineral analysis, as well as saponin, total phenolics and flavonoid determination. Antioxidative activity was evaluated by electron donating ability and ABTS radical scavenging activity. There was only a small difference between water extract beverages and ethanol-extract beverages with respect to their electron donating ability and ABTS radical scavenging activity, although the total saponin, total phenolics and flavonoid were found to be greater in the ethanol extract beverages than in the water extract beverages. Three major free amino acids of the Magemundong beverages with water- or ethanol extract were asparagine (58.30, 60.68 mg%), methionine (15.10, 13.95 mg%, respectively) and proline (12.31, 14.00 mg%, respectively). The most abundant mineral in the Maegmundong beverage with water and ethanol extract was potassium (238.68, 244.32 mg%, respectively).

충남지역 대학생의 탕평채에 대한 인식 및 인지도

이경애,최윤정,Lee, Kyong Ae,Choi, Yoon Jung 한국식품조리과학회 2015 한국식품조리과학회지 Vol.31 No.4

충남 지역 대학생을 대상으로 탕평채에 대한 인상, 인지도, 인식 그리고 탕평채에서 연상되는 이미지 등을 조사하였다. 탕평채 섭취 후 인상은 조사대상자의 88.4%가 '보통이다' 이상의 좋은 인상을 받았으며 성별(p<0.01), 전공(p<0.05), 주거형태(p<0.01)에 따라 유의적 차이를 보였고 식품영양전공자는 비전공자에 비해 더 좋은 인상을 받았다. 탕평채에 대한 인지도 조사 결과, '탕평채는 나물의 한 종류이다.'(74.5%) > '탕평책에서 유래한 음식이다' (59.4%) > '궁중음식이다'(42.3%) 순으로 인지도가 낮아졌으며 식품영양 전공자의 인지도가 더 높았다. 대부분의 식품영양전공자는 청포묵, 숙주나물, 미나리, 고기, 달걀, 김을 탕평채의 재료로 인식하고 있었으나 비전공자는 50% 이상이 미나리를 탕평채 재료라고 인식하지 못하였으며 탕평채를 먹기에 적합한 계절로 80% 이상의 조사대상자가 '봄' 또는 '여름'이라고 답하였다. 한편 '한국의 이미지를 나타내는 음식', '오방색을 구현한 음식'에 대해 높은 인식을 보였으며 탕평채에서 연상되는 이미지로는 '한국의 맛'이라는 응답이 63.7%로 가장 많았으며 이 외에 '건강식', '조화로움', '영양이 풍부한 음식', '다이어트식', '맛깔스러운 음식', '고급스러움', '아름다움', '평화로움' 등의 이미지가 연상된다고 하였다. 따라서 탕평채는 한국의 이미지와 한국의 맛이 담긴 대표적 한식이며 아울러 한식을 세계화하는데 적합한 음식으로 여겨진다. This study evaluated the awareness and recognition of Tangpyeongchae by university students in Chungnam province. A total of 416 questionnaires were analyzed using the SPSS software program (version 21.0). The results were summarized as follows. The students compared of food and nutrition majors (59.4%) and non-food and nutrition majors (40.6%). This survey was performed from May 20 to Jun 8, 2015. More food and nutrition major students got better impression after eating Tangpyeongchae than non-food and nutrition majors. Among the students, 59.4% was not aware that Tangpyeongchae was derived from Tangpyeongchaek, and 57.7% didn't know that it was a Korean royal cuisine. Food and nutrition major students knew more of the background story for the dish than non-food and nutrition major students. The corresponding level of recognition for Tangpyeongchae as a dish representing the image of Korea with a combination of the 5 cardinal colors, known as obangsaek was high, at 4.27 and 4.17, respectively out of 5. Over 60% of the students answered Tangpyeongchae's image with the taste of Korea, followed by healthy food, harmony, nutritious food, diet food and tasty food. These results suggest that may have great potential for globalization as a traditional dish with the image and taste of Korea.

약과의 묘사적 관능분석 및 주성분분석

이경애(Kyong Ae Lee),박진숙(Jin Sook Park) 한국생활과학회 2014 한국생활과학회 학술대회 Vol.2014 No.11

연구논문 : 1700년대∼1960년대 문헌에 나타난 탕평채의 문헌고찰

이경애 ( Kyong Ae Lee ),김보람 ( Bo Ram Kim ),김향숙 ( Hayng Sook Kim ),신말식 ( Malshick Shin ) 한국식품조리과학회(구 한국조리과학회) 2012 한국식품조리과학회지 Vol.28 No.4

This study was reviewed the changes in main ingredients, seasonings and cooking methods of Tangpyeongchae in Korean cook books and literatures published from the 1700s to the 1960s. The first published books about Tangpyeongchae were in Kosasibijib and Kyongdojabji, written in 1783 and the late 1700s, respectively. Tangpyeongchae, a representative traditional Korean dish that was royal cuisine offered at ritual events in the Chosun Dynasty, was called Cheongpochae in the royal court. It was a dish made by mixing cheongpomuk (mung bean gel), meat, dropwort, mung bean sprout, egg strips and laver. This dish has been seasoned with vinegar, soy sauce, black pepper, garlic, green onion, red pepper, salt, sugar, sesame oil and sesame salt since the early 1900s. Dropwort, egg strips, laver, pine nut (powder), red pepper powder, and red pepper threads were used as garnishes. Tangpyeongchae was made by mixing cheongpomuk with other ingredients and seasonings until the late 1800s. Since the early 1900s Tangpyeongchae has been seasoned first with other ingredients and then mixed cheongpomuk.

삼나물-페퍼민트 혼합물의 첨가 농도가 물속 콩기름 에멀션의 소비자 기호도와 지방질 산화안정성에 미치는 영향

이경애(Kyong-Ae Lee),최은옥(Eunok Choe) 한국식품조리과학회 2018 한국식품조리과학회지 Vol.34 No.5

Purpose: Consumer acceptance and lipid oxidative stability of soybean oil-in-water emulsions with added samnamul (Aruncus dioicus)-peppermint (Mentha × piperita) mixture were investigated. Methods: The emulsions basically consisted of refined, bleached, and deodorized soybean oil (40 g) and citrate buffer (60 g, pH 4.0) with samnamul-peppermint extract mixture (1:1, w/w) added at 0, 400, 800, or 1,200 ㎎/㎏ that were stored at 25℃ under light (2,600 lux) for 4 days. Consumer acceptance of color, taste, smell, mouthfeel, and overall liking of emulsions was evaluated with 100 panels, and lipid oxidation was evaluated based on the peroxide and p-anisidine values. Results: Consumer acceptance of the color, taste, mouthfeel, and overall liking of the emulsion improved in response to addition of the samnamul-peppermint extract mixture; however, there was no significant difference in acceptance among emulsions amended with 400, 800, and 1,200 ㎎/㎏ (p>0.05). The degree of lipid oxidation was higher in emulsions containing the added samnamul-peppermint extract mixture, and there was an increasing tendency as the amount added increased. However, there was no significant effect (p>0.05) on the rates of lipid oxidation. Conclusion: The optimum level of samnamul-peppermint extract mixture for an oxidation-stable and consumer acceptable soybean oil-in-water emulsion was 400 to 800 ㎎/㎏ based on consumer acceptance and lipid oxidative stability.

조선시대 및 근대문헌에 나타난 잡채의 조리과학적 고찰

이경애(Kyong Ae Lee) 한국생활과학회 2012 한국생활과학회 학술대회 Vol.2012 No.05

구기자의 수용성 추출물을 첨가한 집청액이 유과의 품질특성에 미치는 영향

이경애 ( Kyong Ae Lee ) 한국식품조리과학회 2008 한국식품조리과학회지 Vol.24 No.4

이소말토올리고당을 사용한 약과의 특성

이경애(Kyong-Ae Lee),이윤진(Yoon-Jin Lee),이선영(Sun-Yung Ly) 한국식품영양과학회 2001 한국식품영양과학회지 Vol.30 No.2

꿀의 25%, 50%를 이소말토올리고당(IMO)으로 대체한 약과를 제조하여 IMO가 약과에 질에 미치는 영향을 검토하였다. 꿀만을 사용한 대조군 약과(Y-0), 꿀의 25%를 IMO로 대체한 약과(Y-1), 꿀의 50%를 IMO로 대체한 약과(Y-2)를 제조하여 세 종류의 약과를 시료로 사용하였다. IMO를 사용한 약과는 Y-0에 비해 환원당 함량은 감소하였고, 지방함량은 증가하였다. 약과 표면의 색은 L, a, b값이 모두 약과간에 유의적 차이를 보였다(p<0.05). IMO를 사용한 약과는 대조군 약과에 비해 명도는 높아졌고 적색도와 황색도는 낮아졌다. 약과의 관능적 특성을 검토한 결과 IMO를 사용한 약과는 Y-0에 비해 색이 엷으며 균열이 많고, 잘 부서지며 견고성이 낮다고 평가되었다(p<0.05). 기호도는 꿀의 25%를 IMO로 대체한 약과인 Y-1이 가장 높게 평가되었으며, 견고성 및 냄새와 정의 상관관계(p<0.05)를, 느끼한 맛과는 부의 상관관계(p<0.05)를 나타내었다. 텍스쳐 특성을 검토한 결과, IMO를 사용한 약과는 꿀만을 사용한 약과에 비해 견고성, 응집성, 검성이 낮아졌다(p<0.05). Effects of isomaltooligosaccharides on the characteristics of yackwa were investigated. Yackwa was prepared by replacing honey with 0, 25, 50% isomaltooligosaccharide. Isomaltooligosaccharide decreased reducing sugar contents and increased crude fat contents of yackwa. The exterior color of yackwa prepared with isomaltooligosaccharide showed lighter, less reddish and yellowish. Addition of isomaltooligosaccharides made yackwa lighter, rougher, more brittle and softer as perceived by panels. Yackwa prepared by replacing honey with 25% isomaltoolgosaccharide showed good acceptability. The acceptability was significantly correlated with hardness, aroma and greasiness. The textural characteristics including hardness, cohesiveness and gumminess were decreased by replacing honey with isomaltooligosaccharide.

연구논문 : 1700년대~1960년대 문헌에 나타난 탕평채의 문헌고찰

이경애 ( Kyong Ae Lee ),김보람 ( Bo Ram Kim ),김향숙 ( Hyang Sook Kim ),신말식 ( Mal Shick Shin ) 한국식품조리과학회(구 한국조리과학회) 2012 한국식품조리과학회지 Vol.28 No.3

This study was reviewed the changes in main ingredients, seasonings and cooking methods of Tangpyeongchae in Korean cook books and literatures published from the 1700s to the 1960s. The first published books about Tangpyeongchae were in Kosasibijib and Kyongdojabji, written in 1783 and the late 1700s, respectively. Tangpyeongchae, a representative traditional Korean dish that was royal cuisine offered at ritual events in the Chosun Dynasty, was called Cheongpochae in the royal court. It was a dish made by mixing cheongpomuk (mung bean gel), meat, dropwort, mung bean sprout, egg strips and laver. This dish has been seasoned with vinegar, soy sauce, black pepper, garlic, green onion, red pepper, salt, sugar, sesame oil and sesame salt since the early 1900s. Dropwort, egg strips, laver, pine nut (powder), red pepper powder, and red pepper threads were used as garnishes. Tangpyeongchae was made by mixing cheongpomuk with other ingredients and seasonings until the late 1800s. Since the early 1900s Tangpyeongchae has been seasoned first with other ingredients and then mixed cheongpomuk.