• Title/Summary/Keyword: taste pattern

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Comparison between Torilis japonica and Cnidium monnieri Using DNA Sequencing and Taste Pattern Analysis (DNA 염기서열과 미각패턴 분석을 이용한 사상자와 벌사상자의 감별)

  • Kim, Young Hwa;Kim, Young Seon;Chae, Sungwook;Lee, Mi Young
    • The Korea Journal of Herbology
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    • v.28 no.6
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    • pp.9-14
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    • 2013
  • Objectives : Cnidii Fructus is prescribed as the fruit of Cnidium monnieri (L.) Cusson or Torilis japonica (Houtt.) DC. in Korea pharmacopoeia. Although there are differences in the composition of useful components, two species have been used without distinction. In order to discriminate them, DNA sequencing and taste pattern analysis were used in this study. Methods : Primers ITS 1 and ITS 4 were used to amplify the intergenic transcribed spacer(ITS) region of nuclear ribosomal DNA from seven T. japonica and six C. monnieri samples. Taste pattern of samples were measured by using taste-sensing system SA402B equipped with five foodstuff sensors(CT0, C00, AAE, CA0, and AE1). The five initial taste(sourness, bitterness, astringency, umami, and saltiness) and three aftertaste(aftertaste of bitterness, astringency, and umami) of two species were compared. Results : According to the results of ITS region sequence analysis, two species showed 94 base pairs differences. The similarity of two sequences was 85%. From the taste pattern analysis, sourness, bitterness, aftertaste of bitterness(aftertaste-B), and umami showed a different pattern. Especially, bitterness and aftertaste-B of C. monnieri were significantly higher than T. japonica. In addition, two species were shown to have two markedly different clustering by these two flavors. Conclusion : T. japonica and C. monnieri were effectively discriminated using DNA sequencing and taste pattern analysis. These methods can be used to identify the origin of traditional medicine in order to maintain therapeutic efficacy.

Discrimination of Chinese Glycyrrhiza uralensis and Uzbek Glycyrrhiza glabra Using Taste Sensor (미각센서를 이용한 중국산 감초와 우즈베키스탄산 광과감초의 감별)

  • Choi, Go-Ya;Kim, Young-Hwa;Chae, Sung-Wook;Lee, Hye-Won;Ko, Byoung-Seob;Lee, Mi-Young
    • The Korea Journal of Herbology
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    • v.26 no.1
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    • pp.35-39
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    • 2011
  • Objectives : Genetic analysis and taste pattern were performed to identify species between Glycyrrhiza uralensis and G. glabra which are officially listed in Korean Pharmacopoeia IX as origin of Gamcho(g$\={a}$nc$\v{a}$o, licorice root, Glycyrrhizae Radix et Rhizoma). Methods : Genetic analysis showed that identification between two species was done by comparing base sequence of ITS(intergenic transcribed spacer) and trnH-psbA regions from eleven Gamchoes sold in market. There was different taste pattern using by taste sensor in Glycyrrhiza uralensis and G. glabra. Results : Genetic analysis showed that six Gamchoes from China were identified as Glycyrrhiza uralensis and five Gamchoes from Uzbekistan were G. glabra. From the results of taste pattern, sourness and astringency of Glycyrrhiza uralensis from China were significantly higher than G. glabra from Uzbekistan, and aftertaste of astringency, aftertaste of umami, and saltiness of Glycyrrhiza uralensis were signicantly low as compared to G. glabra. There is no significant difference between two species in terms of bitterness, aftertaste of bitterness, and umami. Conclusions : Taken together, Glycyrrhiza uralensis from China and G. glabra from Uzbekistan were identified by taste sensor, and this technic could be applied to establishment of taste pattern marker for identification of different species located in various regions.

Input Pattern Vector Extraction and Pattern Recognition of Taste using fMRI (fMRI를 이용한 맛의 입력패턴벡터 추출 및 패턴인식)

  • Lee, Sun-Yeob;Lee, Yong-Gu;Kim, Dong-Ki
    • Journal of radiological science and technology
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    • v.30 no.4
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    • pp.419-426
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    • 2007
  • In this paper, the input pattern vectors are extracted and the learning algorithms is designed to recognize taste(bitter, sweet, sour and salty) pattern vectors. The signal intensity of taste are used to compose the input pattern vectors. The SOM(Self Organizing Maps) algorithm for taste pattern recognition is used to learn initial reference vectors and the ot-star learning algorithm is used to determine the class of the output neurons of the sunclass layer. The weights of the proposed algorithm which is between the input layer and the subclass layer can be learned to determine initial reference vectors by using SOM algorithm and to learn reference vectors by using LVQ(Learning Vector Quantization) algorithm. The pattern vectors are classified into subclasses by neurons in the subclass layer, and the weights between subclass layer and output layer are learned to classify the classified subclass, which is enclosed a class. To classify the pattern vectors, the proposed algorithm is simulated with ones of the conventional LVQ, and it is confirmed that the proposed learning method is more successful classification than the conventional LVQ.

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A Study on Present Status of Preferences in the Choice of Patterns in Clothing (의복문양(衣服紋樣)의 기호도에 관한 실태(實態) 연구(硏究) - 한복(韓服)을 중심(中心)으로 -)

  • Kim, Eun-Ju
    • Journal of the Korean Society of Costume
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    • v.6
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    • pp.65-87
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    • 1982
  • 1. Purpose: The purpose is to apply and adapt ancient textile pattern to practical life, and to contribute to the promotion of the creative development of modernization and Koreanization of textile pattern by the survey of the extent of taste for the textile pattern existent in Korean costume among costumes. 2. Hypothesis: Textile pattern is in most classical one expressed in fact, but nowadays abstract or geometric one is more exist. Consumers are in most part in forties, and so the taste cannot be ignored. Therefore aesthetic consciousness found Korean costume is more important rather than excessively bold or mordern one. 3. Method and Process: (1) This research is analysed 386 one through college student and parents of a primary or high school. (2) Taste of the pattern is comparisoned and analyzed as age. education, pocket money of the student or an income of a month in home through computer. And the analysis of the statistics research is operation through the Chi-Square Goodness of-Fit-Test. 4. Conclusion: (1) The Korean costume put on mostly party or formal dress, therefore it should be researched as an outdoor dress with traditional costume. (2) The most one is concerned in textile pattern, it's taste is different from color, constitution. Textile industry is developed not only weave pattern, gold-coverning pattern but embroidry pattern, dye pattern, therefore the various side of pattern design should be researched. (3) In Side of form, plant pattern is not only most various but highest in popularity. According to approach nowadays, all of the pattern becomes composition or geometric one with abstract tendency and so from these day pattern is necessary combinationed, researched with our people emotion. (4) The color of textile pattern is choiced individual taste. Through investige, research in various side of the modern taste and our costume, we take growing interest in the color, composition of textile, and should dressed with beauty and grace. (5) In side of size, textile pattern is choiced to individual face and body shape through research on form, color, size of these pattern, we should endeavor to dress well. (6) In side of application, most people is concerned in not only interior ornament but the costume is high. Costume research by some people of the outside and symbol with interior through the pattern analysis is not only very important but also is due to people culture.

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Consumption Pattern of Ramyon by High School Students - Kangwondo Area - (고등학생의 라면소비 실태조사 - 강원도 지역을 중심으로 -)

  • Hyun, Young-Hee;Kim, Myung-Hee;Jang, Myung-Sook
    • Korean journal of food and cookery science
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    • v.6 no.1
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    • pp.61-66
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    • 1990
  • Consumption pattern of Ramyon by high school students at age of 16~20 years in Kangwondo area was surveyed by questionaire. About 74% among 754 students consumed Ramyon more than once per week. Most consumers eat Ramyon because of convenience for meal substitution. They consumed Ramyon at between meals and lunch at home. The advertisement had a strong effect on the selection of Ramyon. Consumers considered that taste of soup and texture of noodle are both important quality factor of Ramyon. In terms of the texture of cooked noodle, the most desirable was chewy and hard texture. The most undesirable was swollen and mushy texture. The most desirable and undesirable taste of soup were spicy and greasy taste, respectively. At present, no significant differences in consumption pattern between sex were observed in most cases.

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A Study on Sensory Measures Suitable for an Evaluation of Taste of Long-term Stored Kimchi (장기 저장 김치 맛 평가에 적합한 관능 척도에 대한 연구)

  • Kwon, Soo-Ho;Lee, Myung-Seok;Lee, Dhong-Ha
    • IE interfaces
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    • v.13 no.4
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    • pp.745-750
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    • 2000
  • This paper evaluated the 12 sensory measures suitable for evaluating taste of kimchi stored for 64 maturing days in the three kimchi refrigerators each made by the three different electronics companies respectively. The panel composed of 6 married women and 6 married man tasted sample of kimchi 8 times during the 64 maturing days. Analysis of variance results showed that among the 12 sensory measures sour smell, fresh smell, fermenting smell, sour taste, fresh taste, sensory satisfaction, and maturing degree were sensitive to differentiate both maturing days and refrigerators. Among sensory measures, maturing degree showed the most consistently increasing pattern during maturing days and the most consistently differentiating pattern for the refrigerators.

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Changes in Electrical TAste Threshold with Advancing Age in Korea (한국인에 있어서 연령증가에 따른 미각의 변화)

  • 박성근;김선희;기우천;최재갑
    • Journal of Oral Medicine and Pain
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    • v.23 no.4
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    • pp.327-341
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    • 1998
  • Aims : The purpose of this study was to investigate whether there are any changes in taste sensitivity with advancing age and to see if smoking or oral hygiene can affect the taste sensitivity. Method : Nine hundred and thirty four subjects(458 male and 476 females) were included for the study and they were categorized into 4 age groups( under 20, 20 to 39, 40 to 59, and over 60 age group ). The electrical taste thresholds were measured using an electrogustometer for the 4 different sites in the oral cavity, I.e., tongue tip, tougue alteral, circumvallate papilla, and soft palate. Results : The elctrical taste thresholds were significantly incresed with advancing age in both gender, but the pattern of change is moere abrupt in female after 40. There were not significant differences in electrical taste threshold between smoking and non-smoking people. Taste thresholds were significantly lower in the groups with higher frequency of daily toothbrushing than the groups with lower frequency Conclusion : The electrical taste threshold is increased with aging. It is not influenced by smoking but by toothbrushing.

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Kimchi Preference and Intake Pattern of College Students in Taejon (대전지역 대학생들의 김치섭취실태 및 기호분석)

  • Koo, Nan-Sook;Kim, Ji-Hae
    • Korean Journal of Human Ecology
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    • v.7 no.2
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    • pp.139-148
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    • 1998
  • This study was carried out to investigate the intake pattern and the experience on the kimchi-making, and to analyze the taste preference of kimchi. The questionnaires have been collected from 473 college students in Taejon. Most students had taken baechu-kimchi, kkakduki, yeolmu-kimchi, dongchimi, and cheonggak-kimchi. They liked baechu-kimchi best, and then cheonggak-kimchi. Twenty-seven percent of students took kimchi every meal time and 53 % once a day. The rest 19.4% replied that they could take meals without kimchi. The male students ate more kimchi than the female(p<0.01). Sixty-five percent of them had tried the foreign foods made with kimchi and female had more experience than male(p<0.01). The taste of kimchi-japchae and kimchi-woodong was indicated as edible or taste very good by over two thirds of the students. Kimchi-pizza, kimchi-hamburger, and kimchi-spaghetti were evaluated as edible or taste good by the over half. The aging of kimchi was believed to be the most important factor to determine the taste. Students preferred kimchi which was weak in salty, sweet, and jot-kal taste, strong in hot taste, and proper in sour taste(well-fermented). Compared with the male, the female enjoyed kimchi having stronger sour and weaker jot-kal taste(p<0.01). More female students(43.5%) had experenced kimchi-making than the male(26.5%)(p<0.001). Three-fourth of them had made kimchi with their mother. Baechu-kimchi, cheonggak-kimchi, and dongchimi were recommended as the global food.

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Comparison of Angelica Species Roots Using Taste Sensor and DNA Sequencing Analysis (미각센서와 DNA 염기서열을 이용한 당귀류 비교)

  • Kim, Young Hwa;Choi, Goya;Lee, Hye Won;Lee, Gwan Ho;Chae, Seong Wook;Kim, Yun Hee;Lee, Mi Young
    • The Korea Journal of Herbology
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    • v.27 no.6
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    • pp.37-42
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    • 2012
  • Objectives : Angelica Gigantis Radix is prescribed as the root of different Angelica species on the pharmacopoeia in Korea, Japan and China. Chemical components and their biological activities were also different according to their species. A study for the development of simple method to compare Angelica roots was needed. In order to classify them, the methods such as DNA sequencing analysis and taste sensor were applied to three Angelica species like Angelica gigas, Angelica acutiloba and Angelica sinensis. Methods : PCR amplification of intergenic transcribed spacer (ITS) region was performed using ITS1 and ITS4 primer from nine Angelica roots, and then nucleotide sequence was determined. Taste pattern of samples were measured using the taste-sensing system SA402B equipped with a sensing unit, which consists of artificial lipid membrane sensor probes of anionic bitterness, astringency, saltiness, umami, and cationic bitterness (C00, AE1, CT0, AAE, and AN0, respectively). Results : As a result of comparing the similarity of the ITS region sequences, A. sinensis was discriminated from the others (A. gigas and A. acutiloba). Equally this genetic result, A. gigas and A. acutiloba showed similar taste pattern as compared to A. sinensis. Sourness, bitterness, aftertaste of bitterness, astringency, and aftertaste of astringency of A. sinensis were significantly high as compared with A. gigas and A. acutiloba. In contrast, richness was significantly low. Conclusions : These taste pattern can be used as a way of comparison of Angelica species and this technic could be applied to establish a taste pattern marker for standardization of herbs in various purposes.

A Study on the Physical Status of Elementary School Children in Seoul and their Dietary Pattern (서울지역 국민학생의 체위 상태와 식생활 양상에 관한 연구)

  • 윤훈경;한용봉
    • Journal of Korean Home Economics Education Association
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    • v.7 no.1
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    • pp.133-148
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    • 1995
  • Recently, childhood obesity is increasing in Korea mainly due to westernized dietary pattern. The purpose of this study is to investigate diet pattern(habit and behavior), nutritional knowledge and taste favor in normal and obese children. We carried out anthropometries and self questionaire about life style among the 5th-grader in elementary school(88 boys, 102 girls) in Seoul. The results are as follows : Physical conditions are boys’average hight and weight 142.0cm, 37.5kg ; and girls’143.7cm, 35.6kg. BMI are normal group 38.7% and abnormal group 61.3%(obese 24.2% underweight 16.1% overweight 14.0% very underweight 7.0%) A great part of obese children live in apartment house(79.5% of obese children in southern Seoul; 60.2% in northern Seoul). Obese parents have obese children. Diet behavior, diet pattern, food habit and food preferance of children are similar to their parents, especially their mothers. Preferance in taste of children follows in order of hot, sweet and mild. Especially obese children favor sweet taste more than others. The 61% of them are interested in weight control. Their nutritional knowledges are poor(4.9/10). They like more westernized food(hamberger) than korean food(In-jul-me).

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