• Nutrition Research and Practice
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• 제6권6호
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• pp.534-541
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• 2012

This study examined salty taste acuity and salty taste preference and sodium intake in relation to zinc nutritional status in 2 rural populations in Korea. And we also examined the main food contributors of their sodium intakes. We enrolled 218 adults (66 men and 152 women) from the Kangneung and Samcheok regions in Korea's Kangwon province in our study conducted from December 2011 to February 2012. Participants from each region were divided into 3 groups based on their serum zinc level (T1: lowest, T2: intermediate, T3: highest). We compared the salty taste acuity and preference, Na index (Dish Frequency Questionnaire for estimation of habitual sodium intake), blood pressure, and intakes of nutrients including sodium by 3 groups of serum zinc level. The results were as follows: a higher serum zinc level indicated a lower sodium intake and Na index (P<0.05). The salty taste acuity was considerably higher for participants from the Kangneung region than those from the Samcheok region (P<0.05). And the serum zinc level was significantly higher in participants from the Kangneung region than those from the Samcheok region (P<0.05). We further divided the participants into 2 groups: those who consumed more zinc than the recommended intake (RI) and the others. We compared salty taste acuity and salty taste preference in the 2 groups. The salty taste threshold and palatable salty taste concentrations were lower for the group with a zinc intake above RI than for the group with zinc intake below the RI. However, the difference was not significant. This study confirms that taste function differs depending on zinc nutritional status. In future, it is required to a large-scale, long-term, prospective study on the correlation between zinc intake, serum zinc levels, and taste perception function and blood pressure.

• Animal cells and systems
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• 제15권3호
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• pp.197-202
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• 2011

The present study demonstrates the first-ever characterization of cell types that express the vanilloid receptor 1 (VR1) in the taste buds of rat circumvallate papillae. We performed electron microscopy to identify the subcellular location. The VR1 immunoreactivity was associated with the endoplasmic reticulum, cytoplasmic vesicles, and plasma membrane of taste cells. These results demonstrate the localization of the VR1 in membranous structures of the taste cells. We used double immunofluorescence histochemistry with taste cell type-specific markers to identify the cell types that express the VR1. The VR1 was detected in all functional taste cell types (Type I, Type II, and Type III cells). Together, our data suggest that the VR1 might play different roles according to the cell types within a taste bud.

• 한국식품영양학회지
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• 제35권6호
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• pp.531-536
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• 2022

Umami taste-yielding foods, such as, Joseonganjang, dried anchovies, dried shiitake, dried Konbu (kelp), and Yukjeot, are widely used in the Korean cuisine as soup base. While Umami taste enhancement related to Kokumi taste substances has been proposed in human sensory studies, the potential action of Kokumi taste substances has not been explored on calcium-sensing receptors (CaSR), here referred to as Kokumi taste receptors. In this study, we investigated the effect of Umami taste-yielding foods on Kokumi taste receptors using cells expressing human CaSR. We monitored the temporal changes in intracellular Ca²⁺ in HEK293T cells expressing CaSR in response to aqueous extract of Joseonganjang, dried anchovies, dried shiitake, dried Konbu, and Yukjeot. Kokumi substances tested-glutathione and γ-Glu-Val-Gly- evoked intracellular Ca²⁺ influx in a concentration-dependent manner. A similar increment of intracellular Ca²⁺ influx was induced by Joseonganjang, Yukjeot, and dried anchovies, but not by dried shiitake and dried Konbu. Only Joseonganjang- and Yukjeot-evoked intracellular Ca²⁺ influx was significantly reduced by NPS 2143, a CaSR-specific antagonist. These data indicated that some Umami substances/Umami-yielding materials could activate CaSR, but this property was not observed for all the Umami tasting substances.

• 대한본초학회지
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• 제26권1호
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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.

• Journal of Oral Medicine and Pain
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• 제23권4호
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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.

• 한국생활과학회지
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• 제16권4호
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• pp.837-848
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• 2007

The literature suggested that a small reduction in overall blood pressure can have a large effect on overall prevalence of hypertension, and therefore, the affect of taste preferences of the population on salt intake should be considered for long-term blood pressure intervention programs. The purpose of this study is to investigate the influence of salt taste preference and salt taste sensitivity on salt intake behavior as risk factors for high blood pressure. We collected information on blood pressure, diet and lifestyle behaviors, salt taste preference and salt taste sensitivity from 540 respondents from Suseo-dong, Seoul. Salt taste sensitivity was assessed by administering a 1% NaCl solution to the subject's tongue and measuring the perceived intensity on 10 level scale. Salt intake behavior was classified into 3 categories: frequency of high-sodium foods, practice of salt-reducing behavior and frequency of vegetable and fruit intake. Salt taste preference showed a significant relation to the subjects' blood pressure, i.e. subjects with a higher salt preference had higher blood pressure. Salt taste sensitivity did not show a significant relation to blood pressure. However, there was a positive correlation between salt taste preference and salt taste sensitivity. Among the 3 indicators used to measure salt intake behavior, the practice of salt-reducing behavior remained significantly correlated to blood pressure. Moreover, salt-reducing behavior and salt taste preference showed a significant correlation, i.e. people who do not like salty foods tend to practice more salt-reducing behavior, leading to reduced levels in blood pressure. In a population, a small reduction in overall blood pressure can have large effects in overall prevalence of hypertension, in contrast to clinical studies where achievement of an individual's normal blood pressure is emphasized. Therefore, taste preference of the population should be considered for long-term blood pressure intervention programs.

• 한국콘텐츠학회논문지
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• 제12권6호
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• pp.201-210
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• 2012

본 연구는 기존 텔레비전 연구에서 활용된 레퍼토리 개념을 통해 문화예술 콘텐츠를 선택하는 방식을 구체적으로 탐색했다. 본 연구의 주요 결과는 다음과 같다. 첫째, 문화예술 분야 레퍼토리 비율을 개인별 문화 서비스 레퍼토리로 환산하여 계산한 결과, 레퍼토리 1은 평균 1.66개, 레퍼토리 2는 평균 4.27개로 나타났다. 이들 레퍼토리는 영화 취향을 중심으로 수직적으로 구성되어 있다. 둘째, 인구사회 요인별로 레퍼토리 개수를 살펴본 결과, 레퍼토리 1의 경우에는 성별, 연령, 소득 모두에서 집단 간 차이가 유의미한 것으로 나타났다. 레퍼토리 2도 유사하게 차이가 나타났다. 셋째, 레퍼토리가 전혀 없는 응답자와 1개 이상인 응답자를 구분하는 요인으로 연극, 영화, 뮤지컬 등의 취향이 중요한 역할을 차지하는 것으로 나타났다. 본 연구를 통해 응답자들이 갖고 있는 레퍼토리는 대체적으로 영화와 연극 등 대중문화 중심적인 것으로 나타났다. 반면, 클래식이나 무용, 미술전시회 등의 순수 문화예술 분야에 대한 취향은 응답자별로 분산되는 것으로 나타났다. 반면, 레퍼토리 2를 분석할 때, 순수 문화예술 분야에 대한 취향 정도가 적지 않은 만큼 적극적인 마케팅 및 홍보가 뒷받침된다면 시장을 확대할 수 있는 가능성이 높을 것으로 판단된다.

• 대한본초학회지
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• 제28권6호
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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.

• 기호학연구
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• 제56호
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• pp.7-44
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• 2018

본 연구의 목적은 인지과학의 관점에 근거하여 한국어 맛 어휘, 특히 한국어 맛 형용사의 분류 체계를 제안하는데 있다. 이때 한국어 맛 형용사의 분류는 인지과학의 분과 학문들이 수용하는 '미각'과 '향미'와 '맛'의 정의에 근거하여 이루어진다. 국내에서는 맛 어휘와 관련하여 많은 연구가 이루어져 왔다. 그래서 맛 어휘의 분류와 관련된 연구 결과물들이 꾸준히 발표되었으나, 연구자에 따라 크고 작은 차이를 보인다. 이는 연구자들이 맛 어휘를 범주화하는데 있어 객관적이고 보편적인 기준보다는 주관적이고 직관적인 기준을 적용했기 때문이다. 우리가 일상생활에서 흔히 말하는 '맛'은 미각 수용기 세포가 지각하는 감각 이상의 것을 포괄한다. 게다가 우리 인간이 지각하는 맛의 80~90%는 냄새에 좌우되어, 맛의 지각에 있어 후각의 중요성이 강조된다. 한편 음식의 식감과 색상과 온도, 음식을 먹는 주변 환경, 음식을 먹는 사람의 개인적 사회문화적 기호척도 등이 맛 지각에 큰 영향을 미친다. 먹는 것과 맛을 보는 것은 우리의 일상생활에서 중요한 부분을 차지한다. 그래서 맛 지각에 대한 언어학적 접근은 결코 간과할 수 없는 연구 영역이다. 본 연구자는 인지과학의 관점에 따른 맛 어휘의 분류가 맛 지각의 인지 메커니즘을 이해하는데 도움을 줄 수 있다는 가정에서 출발한다. 본 연구는 우리 인간의 심상어휘집에 '존재할 혹은 존재할지 모르는' 맛 어휘 낱말밭의 모습을 기하학적 모델로 형상화하고자 하는 후속 연구의 사전 작업임을 이 자리를 빌려 밝혀둔다.

• Journal of Nutrition and Health
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• 제23권4호
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• pp.248-256
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• 1990

To compare Na intake and excretion in elementary school children in rural and urban areas of Korea, dietary intake record, urinary Na and K excretion and preference for salty taste were measured in 39 children in 4th grade in Seoul and 36 children in 4th and 5the grades in Kochang-gun)farming area) and their mothers. mean daily urinary Na excretions were 48.8mEq in children and 62.3mEq in mothers. Mothers showed significantly higher preference for salty taste compared to children(X2=16.09, p<0.01). Among the children, those in Seoul had higher preference for salty taste than those in Kochang-gun(X2=8.32, p<0.05). Since the children showed significantly lower preference for salty taste than mothers, more researches and efforts should be directed to prevent the shifts of the taste of the children in order to decrease their Na intake and the risk of hypertension later in life.