• 식품보건융합연구
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• 제8권5호
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• pp.1-9
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• 2022

The health of modern people is threatened by bad eating habits. In order to provide healthy desserts to people, we conducted a study on adding plum concentrate, which is effective for fatigue recovery, insomnia, and prevention of constipation, to scones. In order to examine the utility of scones made by adding plum concentrate, the following experiment was conducted. It was prepared by adding 0g, 3g, 5g, and 7g of plum concentrate to the scone dough, respectively. As a result of the test, the sensory characteristic value was the highest in the experimental group to which 5 g of plum concentrate was added (4.77). There was a significant difference in that the average value tended to increase as the concentration of the plum concentrate increased. As for fragrance, the experimental group with the addition of 5 g of plum concentrate showed the highest sensory characteristic value of 3.62, but there was no significant difference. The experimental group to which 3 g of plum concentrate was added showed higher preference than the control group in most items such as color, flavor, sweetness, and overall preference. This study suggests that the production of scones with plum concentrate has a high potential for commercial use.

• 대한가정학회지
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• 제17권2호
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• pp.32-38
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• 1979

The purpose of this experiment was to find out the contained quantity of ascorbic acid form persimmon tea. They were different according to the month when the persimmon leaves were picked, the way of cooking and the length of time spent after cooking. The results of experiment can be summarized as follows : 1. About the same contained quantities of ascorbic acid were obtained among the persimmon leaves picked in September and October, and small contained quatities of it were obtained among the persimmon leaves picked in November. Therefore it can be concluded that the persimmon leaves picked in September and October are better than the leaves picked in November for permision tea. 2. According to the way of cooking the contained quantity of ascorbic acid were different. When green leaves were washed and boiled for 1 monute and dried in the shade for 48 hours, the largest contained quantity of ascorbic acid were obtained. When they were steamed in the steam box for 1 minute and 30 seconds and dried in shade for 48 hours medium contained quantity of ascorbic acid were obtained . The contained quantity of ascorbic acid were decreased when green leaves were dried without boiling when green leaves were dried without boiling or when branches of leaves were taken away by hand and dried. 3. The contained quantity of ascobic acid were also different according to the length of time spent after cooking. After 15 minutes from cooking it began to increase and after 150 minutes it reached the highest degree. After this time it began to decrease. 4. the best fragrance, taste and color of the Persimmn Tea are found out, after steaming in the steaming box for one minute and half second and after drying in the shade for fourty-eight hours.

• 한국콘텐츠학회논문지
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• 제9권9호
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• pp.191-198
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• 2009

21세기는 기술 발달로 인해 소재의 다양화와 학문적 연계를 통한 디자인 결합은 우리의 삶에 있어 다양한 욕구의 변화를 가져왔으며, 그로인해 시각적인 관심과 함께 기능적 역할의 조화로 자기 개성에 맞는 디자인 개발이 관심의 대상이 되고 있다. 최근 다양한 소재를 이용한 디자인 개발이 추세이고 이러한 디자인 경향은 개인의 감성과 취향을 존중하고 있으며, 이에 따라 다변화 되고 있다. 생활수준의 향상으로 건강과 개성에 대한 관심과 향기에 대한 관심이 높아지고 향(香)은 기억이나 감성 등 개인의 취향과 개성에 맞게 다양한 형태로 개발되고 있다. 이에 본 연구자는 향기 나는 소재를 사용하여 기계적인 특성과 미적 요소를 가미한 소재를 가지고 소비자의 감성적 욕구에 맞게 장신구 분야에 적용하고 시각적 디자인에 후각을 접목하면서 여성의 보조적 디자인에서 벗어나 남성만의 개성과 감성을 표현 할 수 있는 남성 신변장신구에 대한 활용 방안을 제시 하고자 한다.

• 한국과학교육학회지
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• 제28권5호
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• pp.383-394
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• 2008

본 연구에서는 확산 현상에 대한 7학년 과학교과서의 기술을 분석하고, 중학교 과학 교사들의 확산 개념에 대한 인식을 조사하였다. 데이터는 교과서 분석, 46명의 교사에 대한 설문 조사, 5명의 교사를 대상으로 한 면담을 통해 얻어졌다. 확산의 정의, 예시 및 모형에 대한 교과서 분석에 의하면 대부분의 표현들이 물속에서 잉크의 움직임을 관찰하기나 공기 중에서 향수냄새 맡기와 같이 거시적으로 설명되어 있었다. 또한 확산의 정의나 설명이 너무 축약적이어서 교사들이 물질과 매질의 충돌과 같은 미시적인 개념에 대한 추가 정보 없이는 개념을 이해하여 가르치기가 어려웠고, 확산 현상의 정의에서 농도차를 고려하고 있지 않았다. 설문조사와 면담 분석 결과 예시나 모형은 과학교사들로 하여금 용해, 분출 그리고 증발과 같은 개념과 혼동하도록 유도할 가능성이 있었다. 또한 교사들의 확산개념에 대한 이해도는 교과서에 매우 의존적이고 개념의 이해 수준 또한 교과서의 경향과 유사하였다.

• 한국생활과학회지
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• 제18권6호
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• pp.1237-1246
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• 2009

This study was designed to identify and compare the consumption value and interest in appearance with regard to the comparison of men's cosmetics purchase decision factors. We conducted a survey among 259 men who have experienced the re-purchase of men's cosmetics. All data was analyzed with the SPSS Windows 17.0 program in terms of frequency, percentage, means, standard deviations, paired-t test, Cronbach $\alpha$, factor analyses, and multiple regression. In summary, three findings emerged from this study. First, men's cosmetics purchase decision factors included two subfactors: product quality factors (price, quality, skin compatibility, fragrance) and image factors (trend, brand image, consciousness of others, diversion). Second, a paired-t test revealed that the consideration toward the image factors of a first time purchase decision was lower than the re-purchase decision factors. However the consideration toward the product quality factors of a first time purchase decision was not different from the re-purchase decision factors. Third, the product quality factors were positively influenced by distinction factors of appearance and functional value. And social value, emotional value, and curiosity value were found to be effective in the image factors at the first time of purchase and re-purchase. Also, the product quality factors of re-purchase decisions were influenced by the satisfaction of the first time purchase. This study will contribute to provide some information for marketers in understanding men's cosmetics purchase decisions and to offer basic data for marketing strategies and product development.

• 한국입자에어로졸학회지
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• 제12권1호
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• pp.1-9
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• 2016

In this work, we evaluated the characteristics of flow field and uniformity of the nose-only exposure chambers for the inhalation toxicity test. Computational fluid dynamics (CFD) modeling was carried out to demonstrate uniformity of the nose-only exposure chambers. Because it is very important in the inhalation toxicity experiments that test materials are distributed uniformly to each holder of the chamber. The test was done with these 3 types of chamber with different form to develop inhalation toxicity evaluation system, easy-to-operate system among exposure chamber used for evaluating inhalation toxicity of environmental chemical mixtures. Through CFD interpretation, nose-only exposure chamber was made with the selection of the optimal conditions. For its evaluation, one type of fragrance was selected and measured particle size distribution of each port. The gene becoming luminous to green fluorescence was combined with GPT-SPE, a type of tGFP vector, to be inhaled to the mouse. Based on this, luminous intensity was checked. As a result, total particle number concentration of each port had average value of $3.17{\times}10^6{\sharp}/cm^3$ and range of the highest and lowest concentration value was approximately ${\pm}4.8%$. Autopsy of lung tissues of mouse showed that it had clearly better delivery of gene compared to the control group.

• KSBB Journal
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• 제24권4호
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• pp.347-352
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• 2009

Skin toner와 skin lotion의 두 가지 화장품 formulation에 기존의 파라벤류 방부제 대신 황금 (黃芩) 추출물 (1.0 wt%)을 첨가하고 Staphylococcus aureus (ATCC 25923), Pseudomonas aeruginosa (ATCC 9027) 및 Candida albicans (ATCC 10231) 균주를 접종하였을 때 이 균주들은 7일 이내에 99.9% 이상의 사멸율을 보여 황금추출물이 CTFA기준을 만족하는 항균력이 있음을 확인하였다. 다만 skin lotion에 접종된 Candida albicans의 경우 사멸율은 CTFA기준에 약간 미달하는 99.8%이었다. 또한 황금추출물의 농도가 1.0 wt% 이하일 때 균주의 생존율은 그람 양성균인 P. aeruginosa가 가장 높고 그람 음성균인 P. aeruginosa가 가장 낮았다. 전계방출형 주사전자현미경(FE-SEM)을 이용한 세포형태변화 관찰 결과 황금추출물이 P. aeruginosa에 대하여 더 큰 방부력을 갖는 것은 이 균주의 세포막이 황금추출물에 의해 더 심하게 손상되기 때문으로 사료된다. 고농도의 황금추출물이 더 높은 항산화 효과를 나타냈으며 1,000 ppm에서 80%정도의 SOD-유사활성을 나타내었다.

• 한국약용작물학회지
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• 제26권4호
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• pp.308-316
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• 2018

Background: The Rosa multiflora, a well-known plant belonging to Rosacea, is widely used in orthodox medicine in worldwide. However, its biological activity and cosmetic preservative efficacy have not yet been studied. Thus, this species is yet to be defined as a functional cosmetic material. Accordingly, an investigation of the above mentioned atrributes was performed on a 50% ethanol extract of Rosa multiflora. Methods and Results: The antioxidant activity was assessed through free radical scavenging assays with 2,2-diphenyl-1-picrylhydrazyl (DPPH). Additionally, the contents of total phenols and flavonoids were analyzed. The phenolic compounds were detected using HPLC. The antimicrobial activity against Staphylococcus aureus, Escherichia coli, and Candida albicans was assessed using the disc diffusion assay. The preservative effect (challenge test) on a formulation of soothing gel was performed for 28days. The DPPH radical scavenging ability, denoted by the $SC_{50}$ (half maximal inhibitory concentration for DPPH radical scavenging) value was found to be $131.63{\mu}g/m{\ell}$. The content of total polyphenol and flavonoid content were 202 mg/g and 86.77 mg/g, respectively. In additon, astragalin and gallic acid were identified in the extract. The antimicrobial activity of the extract against S. aureus and E. coli was observed to be 5 - 0.5%, and no significant activity was noted against C. albicans. The ethanol extracts (5% and 10%) met the preservation standards of the Cosmetics, Toiletry, and Fragrance Association (CTFA). Conclusions: Thus the ethanol extract of R. multiflora can be used in cosmetics as a natural preservative and antioxidant.

• 한국산업보건학회지
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• 제29권2호
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• pp.119-140
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• 2019

Objectives: This study was based on the occurrence of a coffee roasting process-related disorder(bronchiolitis obliterans; published by NIOSH in the US) among workers exposed to chemicals called diacetyl in a coffee processing facility. Flavorings added to coffee contain diacetyl and 2,3-pentanedione, all of which are subject to exposure in a number of food manufacturing processes, including coffee roasting, grinding, and packaging. Therefore, this study aims to review the toxicity to workers related to food processing and food additive manufacturing to prevent occupational diseases. Methods: We surveyed the related literature, domestic and international references, and the status of relevant domestic and foreign professional organizations. The present situation of workers was investigated by reviewing literature on the safety and health of workers in the coffee roasting process using domestic and foreign literature and presentations. Expert advisory opinions were reflected, and experts were consulted by participating in domestic and overseas academic conferences. Results: Most of the fragrance materials for coffee were harmful and hazardous substances according to the GHS classification, and research was carried out through a second external consultation. A literature review on the measurement of air pollutant emissions from coffee roasters and the estimation of air pollutant emissions during coffee roasting examined the characteristics of pollutants emitted during coffee roasting. Conclusions: Two chemicals identified as causing bronchiolitis obliterans in the coffee roasting process are believed to explain why the disease is difficult to treat. This information can be used effectively in the future prevention of this disease. Future studies should clearly identify the potential for toxicity of alpha-diketones and the bases of OELs in relation to the occurrence of obstructive bronchiolitis, including measurement of various organic compounds and alpha-diketones from ground coffee, as well as various coffee grinds and coffee bean varieties. In particular, it is necessary to clarify the current understanding of the dose-response relationship between alpha-diketone and lung disease in workers involved in coffee roasting.

• 대한본초학회지
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• 제36권5호
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• pp.29-36
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• 2021

Objectives : The purpose of this study was to fix the synonyms, origin, formation mechanism, description, and efficacy of Hwangnapchim in Elucidation of Materia Medica. Methods : Through searching histories and herbal classics, We categorized the contents, and compared with Aquilariae Lignum Resinatum. Results : The synonyms of Hwangnapchim were classified by 3 categories : Napchimhyang-type, Ganamhyang-type and Ginamhyang-type. In early period, it was called by Napchimhyang-type, named after its description that was similar to beeswax. Afterward it was called by Ganamhyang-type or Ginamhyang-type, because of the name "Kynam" that was called by in its producing region. And there were records of producing region of Vietnam, Cambodia, and being from abroad, while those of Vietnam were most frequent. According to custom duties of Ming Dynasty, Hwangnapchim was 17.5 times as expensive as Agarwood. Hwangnapchim shared main producing region, original plant, and process of formation with Agarwood. Therefore, its original plant was Aquilaria crassna, but added honey during formation process. Hwangnapchim was classified 5 types according to its description, the highest quality was Yu-gyeol, resembled beeswax, and easily recovered if get a scar. Hwangnapchim had a fragrance at room temperature, a spicy flavor, and the efficacy of blocking urine and feces. Conclusions : These results showed that Vietnam was major producing area of Hwangnapchim, and that it shared same origin with Agarwood, but it had different description, efficacy, and higher prices because of being added honey during formation.