• 한국수산과학회지
• /
• 제41권1호
• /
• pp.68-72
• /
• 2008

The cellular viability of the human keratinocyte cell line HaCaT was compared after adding seaweed extracts to the culture medium. The viability was measured using a quick, quantitative, spectrophotometric crystal violet inclusion method. Of 36 common seaweed species tested, methanol extracts from Sargassum sagamianum and Gigartina tenella enhanced the viability of HaCaT cells by 1.6-fold, as compared to control cells, while methanol extracts from Dictyota dichotoma, Pachymeniopsis elliptica, and Enteromorpha linza decreased the viability to less than half that of controls.

• 한국식생활문화학회지
• /
• 제29권1호
• /
• pp.54-60
• /
• 2014

The coffee industry has grown very fast ever since international coffee brands were launched in the 1990's. Recently, consumers have begun to focus on coffee produced ethically. This phenomenon is due to ethical-consumption consciousness, which consists of three factors, emotional value, social value and function value. Most studies on this topic have focused on consumers who purchase fair-trade coffee. Thus, this study is novel in its focus on baristas who sell fairtrade coffee in their shops as well as differences from former studies. The three factors of ethical-consumption consciousness of baristas affected the sale of fair-trade coffee, except for the function value. Therefore, the sale of fair-trade coffee could be influenced by ethical-consumption consciousness of baristas. This study shows that education of baristas can promote the sale of fair-trade coffee. However, there are limitations as it only researched coffee brands ranked in the top 5, so further studies will be required in the future.

• Food Science and Biotechnology
• /
• 제18권2호
• /
• pp.533-536
• /
• 2009

Withdrawal time of erythromycin in the cultured black rockfish (Sebastes schlegeli) was investigated to provide regulatory authority and fishery industry with full information needed to secure food safety of the fish treated with erythromycin. Medication was carried out using the experimental diet containing erythromycin of which concentration was 200 mg/kg diet and its daily dose was about 40 mg/kg body weight. The withdrawal time needed to reduce antibiotic contents around 10.0 mg/kg accumulated during 9 days medication below 0.2 mg/kg was identified about 10 days. The antibiotic with 13.7 mg/kg of fish on the $9^{th}$ days of medication was completely depleted after 30 days from stop of medication.

• 한국식생활문화학회지
• /
• 제19권4호
• /
• pp.378-391
• /
• 2004

The Korean tea culture appeared in a variety of ceremonies of the royal household. It was a method of religion for scholars and Buddhist monks, and sometimes it also was a refinement, too. in addition, it played an important role as a household medicine for the common people. As mentioned above, the Korean tea culture has a deep-rooted effect on the Korean traditional culture from the spiritual aspect, art, learning, to the practical life. Recently the tea culture has been rapidly coming into vogue. So the tea culture has been recognised not only to be an index of the cultural level, but also to be an important cultural phenomenon. Besides, It came to be a major role as a reception method by which we can communicate with quests from ail over the world. Because preferred tea was different according to the times and to the regions, tea utensils have been changed along with the tea culture. The present Korean tea culture has a tendency to go to the somewhat different way from the traditional one. This study has the purpose to let us apprehend the Korean traditional culture and hold the national pride. In addition, the value of the Tea should be assessed more properly, and our own Tea that is unique, simple, and natural, should be settled in the our culture.

• Journal of Microbiology and Biotechnology
• /
• 제15권3호
• /
• pp.472-476
• /
• 2005

The present study was untaken to assess the capacity of Bacillus pumilis KHS-1 to grow on chicken flour and to prepare feather digest as fertilizer. To increase keratinolytic activity, the addition of cysteine (5.0 mM) showed the highest keratinolytic activity (245 unit) among the reducing agents tested. The production of soluble protein (feather digests) paralleled the tendency to the production of keratinolytic protease. In the growth curve of B. pumilis KHS-1 at $30^{\circ}C$ in the feather medium with 5 mM cysteine, the maximum keratinolytic activity of B. pumilis was about 161 units/ml after 84 h of incubation. The maximum enzyme activities were observed at the late logarithmic growth phase, and remained thereafter with little changes. Using 27-day plant growth assays on carrot and Chinese cabbage, feather digests and reference fertilizer were compared. In terms of the length and the weight of the above-ground vegetations, feather digests showed the same effect as that of the fertilizer. Therefore, our investigation shows that the feather digests can be used in agriculture.

• 전기전자학회논문지
• /
• 제23권1호
• /
• pp.159-163
• /
• 2019

최근 생활수준의 향상으로 외식문화가 발전하고 있고 온라인과 오프라인으로도 냉동식품의 택배수요가 날로 증가하고 있다. 현재 이러한 식품유통의 대부분은 냉동차량에 의해서 이루어지고 있다. 냉동차량에서 가장 중요한 요소 중에 하나는 정확히 온도를 측정하는 것이다. 기존의 상용 온도 기록 시스템은 일반적으로 온도 센서 모듈을 기록계에 직접 연결하는 형태이다. 이러한 기존의 방법은 전선을 사용하여 기록계에 온도 데이터를 전송하기 때문에 케이블의 길이에 따라 저항 오차를 보상해야한다. 본 논문은 케이블 내의 저항으로 인해 발생하는 오차를 극복하기 위해서 디지털 처리와 CAN (Controller Area Network) 통신을 사용하는 것을 제안한다. 또한 온도 측정의 정확도를 높이기 위해서 백금 센서인 PT-1000을 사용한다.

• 동아시아식생활학회지
• /
• 제23권4호
• /
• pp.508-518
• /
• 2013

In this study, the influence of sub-factors of Big Five personality (extraversion, agreeableness, conscientiousness, neuroticism, openness to experience) to job satisfaction and turnover intention, and mediating effect of job satisfaction between Big Five personality and turnover intention were empirically analysed. Also the relationship between job satisfaction and turnover intention was investigated. The sample of this study were customer-contact employees of restaurant among Youngnam province. 243 questionnaires were used for the empirical analyses. According to the empirical analysis results, openness to experience and conscientiousness respectively had positive influences to job satisfaction and turnover intention. Also neuroticism gave negative influence to turnover intention. Another research finding of this study was that mediating effect of job satisfaction existed in the causal relationship of 'openness to experience' and conscientiousness to turnover intention. Managerial implications of the research findings are that restaurant managers are recommended to select employees of having much of conscientiousness and 'openness to experience', and to employ those of having much of agreeableness. In the field of restaurant industry, training is very important for employees to foster these personalities, because this industry does not have environment of hiring employees of having much of these personalities. Also training can be applied to employees of having high neuroticism for minimizing their turnover intention.

• 한국약용작물학회:학술대회논문집
• /
• 한국약용작물학회 2011년도 춘계학술발표회
• /
• pp.214-215
• /
• 2011

• 한국조리학회지
• /
• 제14권2호
• /
• pp.73-85
• /
• 2008

This study is based on an empirical study on consequences of emotions and emotional labor in the food-service industry. It analyzed the effect of emotional labor on emotions of emotional laborers and the effect of emotional labor on communication skills. Data used for analysis were collected through the questionnaire surveyed on the various samples including employees of family restaurants, Korean restaurants, Chinese restaurants, Japanese restaurants, etc. The result of data analysis indicated that only the efforts for emotional expressions among the factors influenced affirmative emotion(P-value=0.042). It also showed that the factor of the efforts for emotional expressions by researchers had a positive effect on both language communication skills and non-language communication skills(P-value=0.000). This study was valuable in the aspect that emotions and communication skills were first selected as dependent variables of emotional labor and it verified causality between emotional labor and these variables. However, it also has some limitations that its sample size was small and it depended on convenience sampling.

• 한국조리학회지
• /
• 제23권7호
• /
• pp.112-128
• /
• 2017

This study aimed to find the influence with the moderating effects of brand credibility and the mediating effect of brand attitude from the relationship of Loss-Leader marketing factors, brand attitude and revisit intention to make management strategies and provide basic materials for the future restaurant industry. From the findings in this study, only limited sales strategy in the Loss-Leader marketing factors had a positive effect on revisit intention. Both Limited Sales and Price Discount Strategy in the Loss-Leader marketing factors had positive effects on the brand attitude, while Plus Pack strategy had a negative effect on the brand attitude. Also, the brand credibility has a significant moderating effect on the relationship between the Loss-Leader marketing factors and the brand attitude, and the brand attitude has a significant effect on revisit intention. The results indicated that these findings would be basic materials for Loss-Leader marketing factors and related studies in the future. In addition, this study suggests good implications in establishing and using the effective marketing management strategies in the restaurant industry.