• 패션비즈니스
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• 제23권1호
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• pp.64-73
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• 2019

The objective of this study was to investigate dyeing characteristics of silk, cotton and rayon fabrics using dyeing solution extracted from different varieties of tea. Comparative results of CIE Lab values of 360 pieces of dyed fabrics were studied to quantify the effects of dye concentrations (100%, 150%, and 200%) and mordants (Fe, Cu, Sn, Al). In addition, the color difference values (${\Delta}E$) of the dyed and mordanted fabrics were evaluated. The results of the study were as follows: First, among all of the 360 pieces of silk, cotton and rayon fabrics, the best dyeing effects was observed on silk fabrics. Second, the dyeing effect of the eight different types of tealeaves belonging to green tea, oolong tea, black tea, and dark tea tended to enhance as the degree of fermentation increased. Third, when the fabrics were mordanted with Fe, Cu, Sn, Al mordants, various colors such as brown, brownish red, brownish yellow, gray, and reddish brown were obtained.

• 식품보건융합연구
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• 제9권3호
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• pp.1-9
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• 2023

Nowadays, with the development of the internet and e-commerce, opening tea shops online has become an increasing choice for selling tea. However, the product page information of many online tea shops cannot effectively attract consumers, resulting in their profits being compromised. To investigate this, we conducted this paper and hope to provide effective suggestions. This paper is based on 229 questionnaires and selects the product page information of online tea shops as the research object. Using the four dimensions of perceived value theory as independent variables with consumer purchase intention as the dependent variable. A structural equation model was constructed to analyze the role of the perceived value of product page information in online tea shops how influencing consumers' purchase intentions. It was found that information on the perceived functional value of online tea shops did not have a significant positive effect on consumer purchase intentions. However, information on the perceived monetary value, perceived social value, and perceived emotional value of online tea shops had a significant positive impact on consumers' purchase intentions. Based on the above conclusions, online tea shops should focus on the expression of product page information to enhance the level of consumers' perceived value of tea products, thereby enhancing their intention to purchase tea products.

• 한국식물병리학회지
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• 제11권4호
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• pp.383-385
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• 1995

Occurrence of white scab of tea (CAmellia sinensis) showing numerous, small, circular, reddish or yellowish brown spots on young tea leaves was observed at a tea plantation of Boseung, Chonnam, from May to June in 1992-1994. At the late growth stages, the center of the spot became light gray. The causal fungus of the white scab was identified as Sphaceloma theae Kurosawa. Symptoms were produced 5∼6 days after inoculation by the artificial inoculation of s. theae conidia, which was similar to those on naturally infected leaves.

• 가족자원경영과 정책
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• 제9권3호
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• pp.69-95
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• 2005

The purpose of this study was to analyze the needs and demands of middle-aged women concerning the educational contents of tea-culture, the managing methods of educational programs, and a plan to invigorate tea culture education as a whole. Here is the summary of the main results. 1) The need for tea-culture education scored an average of 4.14 / 5(maximum score). The actual needs for tea-culture education had varied according to the women's place of living, educational motives, and the desire to become lecturers in the future. That is, the actual needs for tea-culture education scored high among the groups who displayed strong personal motives to cultivate their inner minds and learn tea-culture seriously, groups who lived in Seoul${\cdot}$Taegu${\cdot}$Cheonju, and groups who wanted to become future lecturers. 2) The need for a systematic management of tea-culture educational programs scored an average of 4.10 / 5(maximum score). The need for a management of tea-culture educational programs varied according to the women's educational level and their desire to become future lecturers. That is, the need for a systematic management of tea-culture educational programs scored high among groups whose educational level was high, and groups who wanted to become future lecturers. 3) The need for a plan to invigorate tea-culture education scored an average of 4.05 / 5(maximum score). The need for a plan to invigorate tea-culture education varied according to the women's place of living, educational level, the managing subject of educational organizations, the desire to become future lecturers. That is, the need for a plan to invigorate tea-culture education scored high among the groups who lived in Seoul${\cdot}$Taegu${\cdot}$Cheonju, groups whose educational level was high, groups who were members of life-long educational facilities within universities, and groups who desired to become future lecturers.

• 한국임상약학회지
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• 제22권2호
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• pp.167-175
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• 2012

Different studies have been conducted regarding caffeine as psychostimulant drugs and its effects as well as determination in various materials. Since, coffee and tea are most drinkable beverage in the world and their major constituent is caffeine. So, analysis of the effect of equal amount of caffeine in coffee and tea with respect to SD rats was studied. The present methodology was purposed to determine and validate caffeine amount in different brands of coffee and tea, and canvass locomotor and behavioral patterns of SD rats after administrating coffee and tea orally consisting of same amount of caffeine (10, 30 mg/kg). Determination of caffeine in different brands of coffee and tea and validation of caffeine were evaluated using HPLC. Depending upon different brands of tea and coffee, caffeine amount was altered. Meanwhile, amount of caffeine in tea was directly proportional to the temperature of liquid. Coffee and tea (Instant Maxim original coffee$^{(R)}$ and earl grey black tea$^{(R)}$) consisting 10, 30 mg/kg of caffeine were studied in SD rats for locomotor activity and behavioral patterns using Tru Scan 99. The locomotor activities of SD rats were increased after administration of coffee and tea consisting caffeine compared to water. The coffee consisted of higher amount of caffeine exhibited steep movement of SD rats. Similarly, rearing and scratching of SD rats as frequency and duration were increased in coffee and tea consisting caffeine compared with water. The study revealed that coffee and tea had effects in locomotor activity and behavioral patterns of SD rats.

• 한국식품영양학회지
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• 제13권5호
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• pp.411-418
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• 2000

결명자차, 녹차 및 밤차가 인체의 생체기능활성화에 미치는 영향을 알아보기 위하여 국소뇌혈류량 및 혈압, in vitro상에서의 면역세포의 활성화, 그리고 암세포가 이식된 동물에서의 면역세포 활성화와 암세포의 증식억제 효과를 관찰한 결과 다음과 같은 결론을 얻었다. 1. 단당류는 현미녹차와 결명자차에는 glucose, ga-lactose등이 들어 있으나 밤차에는 glucose, gal-actose, mannose가 들어 있다. 2. 아미노산은 현미녹차, 밤차, 결명자차 순으로 들어 있다. 3. 카페인은 현미녹차에는 들어 있으나 밤차와 결명자차에는 들어 있지 않았다. 4. 결명자 차는 국소뇌혈류량을 증가시킨 반면 밤차는 감소시켰다. 5. 녹차는 혈압을 증가시켰다. 6. 밤차는 in vitro 상에서 흉선세포와 비장세포의 증식을 유의성있게 증가시켰다. 7. 결명자차와 녹차는 in bitro 상에서 흉선세포의 증식을 감소시켰다. 8. 결명자차와 녹차는 L1210세포가 이식된 동물의 흉선세포 증식을 감소시켰다. 9. 밤차는 L1210세포가 이식된 동물의 비장세포 증식을 촉진시켰다. 10. 밤차와 결명자차는 L1210세포가 이식된 동물의 암세포 증식을 억제하였다.

• 가족자원경영과 정책
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• 제14권3호
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• pp.143-163
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• 2010

The purpose of this study is to analyze the trend of research system and contents of thesis which was published with a theme of child tea ceremony education. Under this purpose we have searched the thesis related to the child tea ceremony education which was in the data base of the National Assembly Library, the National Library of Korea, Korea Education & Research Information Service and we have collected total of 22 analyzing subject data. The major results of this study are as followings: First, after analyzing the research system, the release year of child tea ceremony education study which was published from year 2000 to 2009 are shown as followings, 1 unit in year 2000, 2 units in year 2001, 2002 & 2003, 4 units in year 2004, 5 units in year 2005, 2 units in year 2006, 1 unit in year 2007, 2 units in year 2008, 1 unit in year 2009. The publishing type were 14 units of master's degree thesis, 6 units of academic journal, 2 units of doctor's degree thesis. The academic area of researchers are 8 units of propriety and tea culture, 5 units of early childhood education, 5 units of child welfare, 2 units of family culture and consumer, 1 each unit of counseling psychology and korean culture. As per the research method there were 15 units of experimental study, 6 units of reference research, and 1 unit of thesis which adopts both interview and case study. Second, as a result of analyzing the research contents, the goal of child tea ceremony education was shown to be a holistic child growth and development, a formation of basic living habit, a development of pride on traditional culture and an establishment of national identity. The contents of child tea ceremony education has been classified into 57 items. The activity of child tea ceremony education has been classified into 34 items. The vitalizations of child tea ceremony education is shown to be a education for parents and teachers, a development of systematic educational program, durability of child tea ceremony education, and a verification of effectiveness of child tea ceremony education.

• 한국동물위생학회지
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• 제28권2호
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• pp.91-98
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• 2005

Green tea was known which regulated adipocyte differentiation metabolism. The mechanism on the lipid decreased contents of TAG in the plasma. In addition, green tea increased the expression leptin mRNA, PPAR $\delta$ mRNA and TGF $\beta$. The tea tested was korean powdered green tea. In this experiment, Sprague-Dawley (SD) rats were fed $3\%$ green tea(powdered) for 3 weeks on the basal diet and obese diet and green tea grouts-fed pork meats. duck meats. The expression of leptin mRNA and PPAR $\delta$ mRNA were up-regulated in the green tea-fed groups compared with those of the not green tea-fed groups. There were no significantly difference on the expression of leptin mRNA and PPAR $\delta$ mRNA in green tea grouts-fed pork meats, duck meats as compared with the not fed green tea grouts meats. TGF $\beta$ mRNA. TNF $\alpha$ mRNA and adipsin mRNA were not expressed in the pork meats, duck meats. The expression of TGF $\beta$ mRNA, TNF $\alpha$ mRNA and adipsin mRNA were observed in the experimental rats but no significantly difference on the contents. Physiologic regulated genes were not expressed In the green tea grout-fed pork meats and duck meats.

• Journal of Ginseng Research
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• 제16권1호
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• pp.1-6
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• 1992

Chemical composition was determined to evaluate the quality of Panel ginseng-leaf tea over green teas. Ginseng-leaf tea was shown to contain higher contents of soluble matter, ascorbic acid and lower contents of tannins, as compared to tea leaves. The profiles of ginsenoside and sugar of ginseng-leaf tea were noticeably different from those of ginseng roots and the sample maintained high levels of these components under the manufacturing process. Total unsaturated fatty acids and free amino acids were estimated to be decreased in ginseng-leaf tea as compared to those of ginseng leaves. The compositions of amino acids and minerals in ginseng-leaf tea were similar to those of tea leaves and glutamic acid, aspartic acid, leucine, calcium, potassium, sodium, and copper were found to be major components.

• Journal of Community Nutrition
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• 제8권4호
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• pp.207-213
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• 2006

The present study was conducted to investigate the effect of oolong tea extract on blood glucose level and antioxidant system in diabetic rats. The Sprague-Dawley rats were fed on AIN-76 based experimental diets containing 1 % oolong tea extract for 6 weeks. They were induced to be diabetic by receiving streptozotocin (45mg/kg BW) intramuscularly. Blood glucose, blood and hepatic concentration of vitamins A and E, and antioxidant enzyme activities were measured. Oolong tea extract feeding decreased the plasma glucose in diabetic rats. Dietary supplementation of oolong tea extract did not affect antioxidative enzyme activities such as superoxide dismutase, glutathione peroxidase and catalase in diabetic rats. The plasma level of retinol was increased in diabetic rats by feeding oolong tea extract. Plasma and hepatic levels of ${\alpha}$-tocopherol were higher in diabetic rats fed oolong tea extract. In conclusion, these results suggest that oolong tea extract consumption might reduce the plasma glucose in diabetic rats and protect the oxidative damage from diabetic stress to some extent.