• 한국식품영양과학회지
• /
• 제22권1호
• /
• pp.73-77
• /
• 1993

This study was intended to investigate the effects of solvents, particle size of a sample, sample to solvent ratio, temperature and time on the extraction of garlic oleoresin. Among eleven solvents used for oleoresin extraction from garlic, the optimal solvent was methyl alcohol. The most appropriate particle size of garlic, extracting temperature and mixing ratio of garlic to methyl alcohol were 20mesh, $25^{\circ}C$ and 1 to 3(w/w), respectively. On the basis of yield in oleoresin extraction, optimum extracting time was about 4 hours. The yield of oleoresin under the above-mentioned conditions was 21.3%. "L" and "b" as color appearance were decreased, whereas "a"was increased slightly during 60 days storage at 5$^{\circ}C$, $25^{\circ}C$ and 4$0^{\circ}C$. Changes in the pyruvate content showed close relation to pH value. During storage pyruvate content of garlic oleoresin was decreased as increasing storage temperature.

• 한국식품영양과학회지
• /
• 제26권5호
• /
• pp.794-799
• /
• 1997

The effective fermentation methods of Kimchi juice for utilization of outer layer of Chinese cabbage, an waste of Kimchi industry were studied. The Kimchi juice prepared with brining and grinding the waste of Chinese cabbage and addition of spices was fermented at $25^{\circ}C$. Addition of 5$^{\circ}C$15% fermented Kimchi juice of pH 5.4 at initial stage and pH 4.4 at middle state resulted in a significant increase in fermentation rate and solid content after 12 hours of fermentation. The combined method of enzymatic hydrolysis(0.1% viscozyme) of the brined and ground cabbage and addition of 2.0% NaCl, 1.0% sucrose and 10% fermented juice of pH 5.4 first and 4.4 during fermentation, respectively resulted in more rapid fermentation. The solid concentration was 5 times higher than control at maximum point and acidic and total flavor intensity were also significantly high.

• 한국식품영양학회지
• /
• 제7권3호
• /
• pp.219-222
• /
• 1994

Cold cuts were prepared from the pork and chicken with polyphosphate salt and spices. Microorganism was more proliferated and acid value was more decreased In pork cold cut rather than chicken cold cut. Otherwise TBA value of chicken cold cut was more increased than that of pork cold cut. Textures of springeness and cohesiveness were not significantly different in both cold cuts. From sensory evaluation, color, appearance and odor were significantly different, but texture, flavor and total acceptability were not significantly different. From these results, if we could study some antioxidants furthermore. we think it possible to manufacture cold cut from chicken.

• 한국식생활문화학회지
• /
• 제29권2호
• /
• pp.178-186
• /
• 2014

This study sought to prove the validity of Hansik Yangnyomjang classification Korean culinary education. survey was conducted among Korean Cuisine professionals, culinary instructors, culinary professionals and potential students from various backgrounds. ata were collected by self-administered questionnaires and analyzed by reliability analysis, frequency analysis and t-test. any differences in terms of the validity of Hansik Yangnyomjang classification between groups based on their majors, teaching experiences, and knowledge of sauce classification. First, the result showed that fermented Jang is core element Korean cuisine. Second, Hansik Yangnyomjang classification needs to be organized around Balhyojang. Third, Hansik Yangnyomjang classification for beginners and foreigners who want to learn Korean Cuisine relatively easily. Finally, the term 'sauce' is not suitable for replacing Yangnyomjang.

• Preventive Nutrition and Food Science
• /
• 제5권2호
• /
• pp.75-80
• /
• 2000

To separate ACE inhibitors from edible plants, spices, and herbs, 285 extracts of 95 sources were screened for ACE inhibitory activity. The extract of Sinapis alba L. had the most potent ACE inhibitory activity. Mustard seeds were crushed homogeneously and extracted with hexane and water successively. Lyophilized water extract was fractionated with $H_2O$:butanol(1:1). The ACE inhibitor was purified from butanol fraction by methanol precipi-tation, gel filtration, HPLC, and FPLC with Superdex peptide HQ 10/30 column. The active fraction has been purified to homogeneity, which was proven by gel filtration using FPLC system. The yield was 0.02%. The com-pound has a molecular weight of about 640. The compound competitively inhibited ACE activity and the $IC_{50}$ value was 79$\mu\textrm{g}$/ml. The purified compound showed uterus contraction activity in isolated rat uterus.

• 한국식생활문화학회지
• /
• 제15권4호
• /
• pp.269-277
• /
• 2000

A survey was conducted to examine the knowledge and acceptance of food irradiation in order to provide baseline data required in the development of food irradiation education programs for college students. 150 students majoring in food and nutrition or food technology in the Chungnam National University were chosen for a survey. The results are as follows. First, college students' knowledge about food irradiation is scanty. Knowledge assessment showed that 56% of the participants had previously heard of food irradiation. 68% of the respondents thought that radioactivity remains in food after irradiation and 25.3% of them were not sure whether radioactivity remains in food after irradiation or not. Only half of the respondents thought that nutrient loss due to irradiation is equal to or lower than that due to cooking or freezing. Second, approximately 56% of the respondents showed that food irradiation is somewhat or strongly needed for meat or fish; whereas, over 60% of them showed that food irradiation is not needed for grain, vegetable and fruit. Almost 40% of the respondents were seriously concerned about irradiation of vegetables and fruits; whereas, they showed less concern about spice irradiation. More than half of the respondents were not willing to use irradiated food in all the six food groups. Third, the correlation analysis showed that the need of food irradiation is negatively correlated with concerning about the irradiated fish and fruits, but positively correlated with willingness to use irradiated food in all the five food groups, except in spices. Concern about the irradiated food is negatively correlated with willingness to use irradiated food from all the six food groups. Fourth, almost all the respondents (over 90%) agreed that the irradiated food labeling is required as well as the development of proper methods to identify irradiated foods.

• 한국식품위생안전성학회지
• /
• 제27권2호
• /
• pp.182-187
• /
• 2012

본 연구에서는 향신료 조제품인 고추다대기의 사용원료 확인을 위한 분자생물학적 기법을 이용한 시험법을 검토하였다. 시료 중 원료성분 확인을 위하여 고추, 마늘, 양파의 종 특이 프라이머를 이용하였으며, 대상 식품원료로는 고추다대기 6건을 선정하였다. 시료로부터 직접 유전자 추출 후 PCR을 실시하였으나 고추 등 사용원료의 확인이 어려웠다. 따라서 염 성분을 제거하기 위하여 증류수를 이용하여 3~4회 세척 후 PCR한 결과 6건 중 5건에서만 고추유전자 확인되었으며, 마늘 및 양파 성분은 모두 확인이 불가능하였다. 따라서 염 성분 제거 후 추출유전자의 증폭을 위하여 Whole Genome Amplification (WGA) 키트를 사용 후 PCR을 실시하였다. 그 결과 모든 시료에서 고추유전자(102 bp)를 확인하였으며, 양파를 함유하는 6건 및 마늘을 함유하는 4건에서 각각 양파(280 bp) 및 마늘(180 bp) 유전자를 확인하였다. 따라서 본 연구에서 검토된 고추다대기에 대한 시료 전처리법, 유전자추출법, 추출유전자증폭법 등은 고추다대기를 이용한 불량고춧가루 제조 시 이를 판별할 수 있어 식품안전관리에 활용할 수 있을 것으로 기대된다.

• 동아시아식생활학회지
• /
• 제23권2호
• /
• pp.184-196
• /
• 2013

To investigate the image, preference, importance and satisfaction of foreign visitors to Korean foods, 220 visitors (male 104, female 115) were surveyed with questionnaires in English and Japanese. To achieve this research purpose, frequency analysis, exploratory factor analysis, t-test, and one way ANOVA was performed using the SPSS 15.0 program. Subjects had various nationality such as Europe/Oceania (24.7%/), Asia (23.3%), Africa (12.8), and North America (39.3). The representative food was kimchi > bibimbop > bulgogi but the most favorite food was bibimbop > kalbi > bulgogi in order. Like this, there are some discrepancies among the food choice, especially in kimchi, so the taste of kimchi should be improved according to the foreigners' taste. The results of the preference about the image get the high grade from those factors; the resonable price of Korean food, the spicy taste, various kinds of food according to the settings of the table, good for the health with excellent taste. Foreigners consider that the cleanliness of food and tableware, the sanitation of the restaurants, the taste of the food and freshness of ingredients are the important factors in Korean food and Korean restaurants. According to these factors, the satisfaction is affected by the attitude of servers > the taste of the food > the freshness of the ingredients > the amount of the food > the atmosphere of the restaurants > the cleanliness of the tableware in order. From the relationship between the importance and the satisfaction, the low grade food should improve the color and styling of the food and be served the appropriate amount of the food. Moreover, it is needed to improve the combining the spices and the ingredients to maintain a balance between strong and delicate flavors and with this, Korean food should be more globalized to promote the development of Korea tourism.

• 한국식품조리과학회지
• /
• 제23권5호
• /
• pp.749-760
• /
• 2007

The purpose of this study was to evaluate the microbiological quality of non-heat-processed foods and the effects of HACCP implementation. Here, cabbage salad and cucumber&onion salad were selected and we investigated HA(Hazard Analysis) by checking microbiological quality, time and temperature, pH, and water activity at each processing stage. Thus, the receiving of spices and dressings, washing and sterilizing, cutting, cooking, and serving stages were all considered CCPs. Before implementing HACCP, microbial analysis showed that standard plate counts and coliform counts were higher than standard levels in most of the raw ingredients of each menu, as well as during the production process. The microbiological quality of the utensils and employee's hands used during cooking indicated levels requiring direct management. Evaluations of falling bacteria-in the foodservice establishment work areas ranged from $2{\sim}12CFU/plate$. However, after HACCP implementation, microbiological levels improved to standard levels fly sanitation education. Also, the number of falling bacteria were lower than before implementing HACCP. Therefore, it is essential the foodservice operations make efforts to implement HACCP, so that microbiological hazard levels are lowered and hygienic status improved.

• 한국식생활문화학회지
• /
• 제31권6호
• /
• pp.554-572
• /
• 2016

This study is a comparative study on a cookbook published in 1900s titled "Jusikbangmun", one of collections of the National Central Library, along with other cookery books in Joseon Dynasty in the late 1800s to early 1900s. "Jusikbangmun" consists of 51 recipes, including 45 kinds of staple foods and six kinds of brews. More than 60% of the recipes deal with staple dishes and side-dishes, whereas the rest deal with ceremonial dishes and drinking. The "Jusikbangmun" applies a composite method of cooking from boiling and steaming to seasoning with oil spices. The ingredients are largely meats rather than vegetables, which is distinguished other cookery books in the Joseon Dynasty. Only "Jusikbangmun" deals with such peculiar recipes as 'Kanmagitang', 'Bookyengsumyentang', 'Jeryukpyen', 'Yangsopyen', and 'Dalgihye'. It is estimated that "Jusikbangmun" was published around the 1900s based on findings that "Jusikbangmun" is more similar with "Buinpilgi" and "Joseonyorijebeop" in the early 1900s than with "Kyuhapchongseo", "Siyijenseo" and "Jusiksieui" in 1800s. Therefore, "Jusikbangmun" is a valuable resource, we can use understand the food culture of the late Joseon period.