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심기현,Sim, Ki Hyeon 한국식품영양학회 2019 韓國食品營養學會誌 Vol.32 No.5
The purpose of this study was to compare differences in the main food components between Korean and imported quinoa from Peru, the U.S., and Thailand. Proximate composition of Korean quinoa showed highest crude protein and crude ash, while Korean quinoa had lowest moisture. Total amino acid content was higher in Korean quinoa than in imported quinoa. Fatty acid content was highest in quinoa cultivated in the U.S. and Wonju. Quinoa cultivated in Wonju was rich in palmitic acid, lignoceric acid, linoleic acid, eicosadienoic acid, erucic acid, and nervonic acid. Mineral content was higher in Korean quinoa than in imported quinoa. Quinoa cultivated in Wonju showed highest contents of P, Mg, Zn, while quinoa cultivated in Hongcheon showed the highest content of Na. Citric acid was found the major organic acid in quinoa. Citric acid content was highest in quinoa imported from the U.S. and lowest in quinoa cultivated in Hongcheon. Among free sugar, raffinose and glucose contents were highest in quinoa cultivated in Hongcheon, The results of this study show Korean quinoa has high contents of protein, amino acids, fatty acids, minerals and free sugar, offering essential amino acids in an excellent balance.
Quality Characteristics during Storage of Yackwa added with Ethanol Extract from Ulmus davidiana
심기현,Sim, Ki Hyeon The Korean Society of Food and Nutrition 2015 韓國食品營養學會誌 Vol.28 No.3
최근 식품에 첨가하는 합성 항산화제가 생체효소의 활성을 억제하고, 암을 유발시키는 등의 안정성에 문제가 되는 것으로 보고되면서 천연 식물자원으로부터의 항산화 물질을 개발하고자 하는 연구가 활발하게 진행되고 있다. 느릅나무의 껍질인 유근피는 항산화 효과가 매우 우수한 것으로 보고되고 있어서, 천연 항산화제로 유근피 에탄올 추출물을 0, 0.05, 0.1, 0.2%로 약과에 첨가하여 합성 항산화제인 BHT와 천연 항산화제인 L-ascorbic acid를 0.02%로 첨가한 약과와 저장기간에 따른 품질특성과 지질산패 정도를 비교하였다. 유근피의 첨가량이 증가할수록 산패취와 경도는 감소하였고, 반면에 수분활성도, 팽화도, 관능평가 등은 증가하였다. 특히 유근피를 첨가함에 따라 약과의 명도가 감소한 것으로 나타났는데, 이는 약과의 메일라드 반응에 의한 갈색물질인 멜라노이딘류의 생성 때문으로 추정된다. 또한 약과의 저장 기간이 증가함에 따라서 경도, 색도, 산패취 등이 증가하였고, 반면에 수분활성도와 팽화도, 색, 맛, 조직감, 전반적인 기호도 등의 관능적 특성은 감소하였다. 유근피가 약과의 저장성에 미치는 영향을 살펴보기 위해서 산가와 과산화물가를 측정하여 실험한 결과, 유근피를 첨가한 약과는 첨가하지 않은 약과에 비해서 지질산화가 적게 일어나, 약과의 저장성을 증가시켜 주는 것으로 나타났다. 관능적인 특성을 비롯한 품질특성과 지질산패 정도를 평가한 결과, 유근피 추출물을 0.1% 첨가한 약과가 가장 좋을 것으로 평가되었다.
한국인 제2형 당뇨병 환자를 위한 칼로리별 표준식단 적용효과
심기현,한영실 한국조리과학회 2005 한국식품조리과학회지 Vol.21 No.1
To develop the diet for Korean type 2 diabetic patients, a consumer survey was conducted (N=35) and was analyzed statistically. The survey compared the results of a questionnaire, somatomety, and blood parameters before and 8 weeks after the experiment. It was divided into Diabetic diet enforcement group (DDE) vs. Non diabetic diet enforcement group (NDDE). There was no significant difference in body weight, body mass index (BMI), body fat, triglyceride (TG) and low density lipoprotein cholesterol (LDL-C) of the subjects before and 8 weeks after the experiment. DDE's average fasting glucose (FBG) and post prandial 2 hours blood glucose (PP2) were significantly decreased before and after the experiment (p<0.05). NDDE's average FBG and PP2 showed no significant difference. In terms of Hemoglobin A C (HbAIC) content, DDE's had significantly decreased level both before and after the experiment (p<0.05), while there was no significant difference in the NDDE group. Cholesterol and High density lipoprotein cholesterol (HDL-C) were significantly different in DDE (p<0.05) both before and after the experiment. Whereas its the case of NDDE, there was no significant difference on the cholesterol and HDL-C, while DDE's showed a significant difference before and after the experiment. In terms of patients distribution depending on their treatment (p<0.05). NDDE had no significant difference before and after the experiment. For an item asking blood glucose control. DDE had significant difference before and after the experiment (p<0.01), while NDDE had no significant difference. For program satisfaction (p<0.05) and health (p<0.001), both the groups changed significantly after the experiment. But there was no significant difference in applying it to their real life after the experiment. Based on these results, DDE had the decreased blood glucose levels. HbA₁C, and cholesterol and increased HDL-C, with decreased rate of the patients taking oral hypoglycemic agents. In addition, many of the patients who participated in the experiment were found to be satisfied with the program, in terms of having less (rouble in glucose control and exhibited improvement in health. Hence, based on the above results it was concluded that program was a very successful one for the treatment of diabetes.
식생활 라이프스타일에 따른 한국 약선음식 인지도 및 만족도 조사
심기현(Ki Hyeon Sim) 한국조리학회 2011 한국조리학회지 Vol.17 No.4
This study aimed to investigate recognition and satisfaction toward Korean herbal foods according to dietary lifestyle as well as the actual status of using ingredients for Korean herbal foods while looking for methods to improve use. The general characteristics of the respondents included relations with foods such as learning or working on them, and the correlations with the examined items were analyzed by grouping according to dietary lifestyle. Five significant dietary lifestyle groups were derived by analyzing the groups using the factor scores from the analysis. Recognition of Korean herbal foods was higher with older respondents and more cooking experience. Regarding experience related to Korean herbal foods, the housewives showed higher satisfaction when the ingredients of foods were bought and cooked. And satisfaction with price differed significantly by dietary lifestyle. With regard to experience of using ready-to-cook or ready-to-eat products, the groups with more cooking experience indicated relatively lower satisfaction with the taste of such products. When visiting restaurants, the groups with less cooking experience showed higher satisfaction with taste and nutritional values. Regarding the actual status of using ingredients for Korean herbal foods, most of the respondents answered that hygiene and quality management, distribution and marketing, and the promotion of ingredients are all essential.