• Title/Summary/Keyword: Food Colors

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Characterization of Natural Gardenia Color with Systhetic Color (천연치자색소의 합성색소와의 특성 비교)

  • 김희구;김옥도;이상준
    • The Korean Journal of Food And Nutrition
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    • v.11 no.5
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    • pp.506-512
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    • 1998
  • In order to replance systhetic colors by natural colors as food additive, properties of Gardenia yellow color and Gardenia blue color were compared with Food yellow No. 4 and Food blue No. 1. Color differeance between Food yellow No. 4 and Gardenia yellow color was 7.55. Thermal stability of Food yellow No. 4 was above 99%. On the other hand, in case of Gardenia yellow color, showed adove 90% of residual color units in 8$0^{\circ}C$$\times$30min and 10$0^{\circ}C$$\times$30min at pH 7.0 but 75% in 121$^{\circ}C$$\times$15min. Difference of light stability between Food yellow No. 4 and gardenia yellow color was about 18%. Addition of ascorbic acid was increased about 6% in light stability. Color difference between Food blue No. 2 and Gardenia blue color was 107. Thermal stability of Food blue No. 2 was above 99%. But Gardenia blue color showed 92% of residual color units in 8$0^{\circ}C$$\times$30min and 10$0^{\circ}C$$\times$30min at pH 7.0 but 90% in 121$^{\circ}C$$\times$15min. Difference of light stability between Food blue No. 4 and Gardenia blue color was about 8%. Addition of -tocopherol was increased about 4% in light stability of Gardenia blue color.

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Quality Characteristics of Ginseng Powder using Molecular Press Dehydration Method (분자 압축 탈수방법을 이용한 인삼분말의 품질특성)

  • Lee, H.S.;Kwon, K.H.;Jeong, J.W.
    • Journal of Biosystems Engineering
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    • v.34 no.3
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    • pp.155-160
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    • 2009
  • This study was attempted to quality characteristics of ginseng powder using molecular press dehydration(MD) method. Ginseng powder was dried using maltodextrin as dehydrating agents, and the quality of the ginseng powder was compared with that of freeze-drying and hot air-drying samples in terms of colors, moisture contents and grain size. The colors of ginseng powder using MD-drying and freeze-drying was better than hot air-dried ginseng powder. The moisture contents of ginseng powder using MD-drying was 9.49%, while freeze-drying was 4.14% and hot air-drying 11.71% after 72ball mill times. The grain size of ginseng powder using MD-drying and freeze-drying was better than hot air-drying ginseng powder. These results suggest that drying of ginseng powder using molecular press dehydration method is very efficient, because minimal cell destruction may be achieved.

A Study on the Website Color Analysis of the Foodservice Brand: Concentrated on Homepage of Family Restaurants (외식브랜드의 웹사이트 컬러분석에 관한 연구 - 패밀리 레스토랑 홈페이지를 중심으로 -)

  • Lee, U-Joo
    • Journal of the Korean Society of Food Culture
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    • v.20 no.2
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    • pp.261-272
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    • 2005
  • The color and its coordination should intensify the customer's memory and awareness in a brand website, through the consistent communication strategy by which a variety of brand identification in the offline could be expressed efficiently. We evaluated top 5 brand-valuable family restaurants in this study, how they made the best use of the website as a new communication channel, and how they constructed the brand identification by the coloring of a website. We found out that they employed colors with a dynamic and lilting feelings matching the concept of a family restaurant. In addition, A color scheme was well designed for the specific character of a brand, though web-safe colors were seldom employed. This report can be a guide to a corporation for the color and its coordination in the website, when existing brand images need to be intensified and enhanced, or when a new brand image need to be constructed.

A Survey On Women's Preference of Food Color (식품색에 대한 여성의 기호조사 I (연령별))

  • 황춘선
    • Journal of the Korean Home Economics Association
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    • v.31 no.2
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    • pp.177-188
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    • 1993
  • To obtain a clear understanding of the degree of effect by the food color in diet habits, this study was a survey of the taste for food color. In this study, the term of investigation was tow months(May and Jun. 1992), the object was 10's∼50's women, and the sampling of them at random contain 100 person, respectively. The data-treatment was determinded by frequency, percentage, SD, Chi-square, Spearman's rank order correlation coefficient, Correlation, F-test as measured by SAS program for PC and statistical figures were obtained by GDAS. The results were as follows; 1. Food color in diet habits. : The relationship of food color with appetite by age group was showed to affect all age groups having more then 90%. The concern for food color by age group showed the lowst teenage having 56.7%, showing more then 70% except teenage. When chosen food, The most important characteristics of food was not age group but taste. In the correlation between characteristics, The correlation between color and form, taste and nutrition was showed affirmative. The difference test for the taste of food color and general color was shown, and the level of significance was chosen at 95%. 2. In the correlation between food color and the sense of emotion, The food color of depression and solitude was purple, the color of sadness and crying was white. But in case of only solitude, A statistical significance was shown. 3. In the investigation of taste for food color, the mean of taste degree was high in red, orange, yellow, yellowish green, green, white and low in blue, black. Their statistical significance was shown between colors but, was not shown between age groups. 4. In the relation of food color and associated with food, the colors of associated with food shown a vast difference with natural food color were blue(85.5%), purple(80.0%), pink(41.7%) and yellow(40.0%) but, A red color was not shown the error rate of associated with food color at all. Almost all kinds of associated with food were fruits and vegetables.

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A study on the relation between colors and tastes used mostly (실생활에서 주로 사용하는 색과 미각의 관계에 관한 연구)

  • Choi, Hyoung-Soon;Kim, Yoo-Jin;Lee, Kyung-Won
    • Science of Emotion and Sensibility
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    • v.12 no.4
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    • pp.471-480
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    • 2009
  • According to former studies, people can imagine the specific taste by the specific color, not every color. Besides, studies also say that the relation between colors and tastes is decided by personal experience and frequency about the color of food. So the authors supposed that there is the specific color related the taste. To find the relation, we selected 24 colors and 24 taste adjectives mainly used by people. Then, we examined taste imagined on color with questionnaires of 20 college students who are sensitive to colors and able to use all 24 taste adjectives. Then we analyzed the result by MDS. Finally we could find 5 definite relations between colors and tastes. The result suggested that the number of colors which can be associated with tastes are quite limited. Also, only limited colors can be associated with tastes and it is different by sex. This study shows not only the relation between the color and the taste but also how closely the taste is related to other colors. This study can be used for effective food package design, advertising and so on.

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Toxicity Evaluation of Tar Colors by Water Fleas and Luminescent Bacteria (물벼룩과 형광성 박테리아를 이용한 타르색소의 독성평가)

  • Choo, Yeon Jong;Kim, Gun Heung;Kim, Hung Soo
    • Journal of Wetlands Research
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    • v.9 no.1
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    • pp.21-29
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    • 2007
  • In Korea, we assign the chemical substances of 535 types as toxic substance. Only 10% of the 535 toxic substances are being managed by the Ministry of Environment related with water quality standard. Tar color is also one of chemical substances, but we have the lacks for the information of tar colors about the environmental effects of aquatic ecosystem. This study performed the test of bioassay using Water Fleas and Luminescent Bacteria. The tar has 7 types of colors allowed as the edible color and we evaluate the toxicities of 5 tar colors out of 7 colors and we would like to provide the informations for further study as we perform the toxicity test for the samples of 5 tar colors. We did the toxicity test of using Water Fleas From the results, we obtained the magnitudes of toxicity in order of Red No.2, Yellow No.5, Red No.3, Yellow No.4, Blue No.1. As the result based on Microtox Acute Toxicity Test using Luminescent Bacteria with the standard of 15min-EC50, we obtained in order of Yellow No.5, Food Red No.3, Red No.2, Yellow No.4, Blue No.1. We could expect the tar colors may have different effects on the aquatic ecosystem, respectively and it may influence to the aquatic ecosystem and the human, because of bioconcentration by food chain when toxicity of the tar colors overflow in the aquatic ecosystem.

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Investigation of Safety Children's Favorite Foods in the School Zone (그린푸드존 내 어린이 기호식품에 대한 안전성 조사)

  • Jang, Jun-Hoe;Jang, Min-Sun;Cho, Kab-Yeon
    • The Korean Journal of Food And Nutrition
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    • v.25 no.2
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    • pp.398-406
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    • 2012
  • The acid value of the oil extracted from the three kinds of 15 fried foods ranged from 0.89 to 3.92, the peroxide value ranged 10.0~57.14 meg/kg. Among the samples, popcorn chicken contained the highest crude fat content, showing $6.64{\pm}0.26(%)$, while the french-fries showed $2.87{\pm}0.31(%)$, which was the lowest. The content of the trans fatty acid per 100 g of the foods were; the fried foods: 0.02~0.06 g. The french-fries contained the lowest saturated fatty acid per 100 g of the foods, showing 0.41~1.55 g, while the popcorn chicken showed the highest content, 1.16~3.43 g. The fried foods contained the highest linoleic acid content. Further, fried foods exhibited safe levels of trans fat content. The "School Zone", which sells snacks, candies, chocolates flow, was not detected in the saccharin. Cookies, candies, chocolate was not detected in the tar colors. Aerobic plate count were ranged from 0~4,700 cfu/g in cookies, Salmonella test came out negative.

Study on the Freezing Processing Adaptabilities of Strawberry Varieties Cultivated in Korea (우리나라 딸기 품종별(品種別) 냉동가공(冷凍加工) 적성시험(適性試驗))

  • Min,, Byong-Yong;Chang,, Kun-Hyung
    • Korean Journal of Food Science and Technology
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    • v.1 no.1
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    • pp.62-64
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    • 1969
  • The experiment was carried out to investigate the adaptability of freezing process with thirteen strawberry varieties cultivated in Suwon, Pusan and Chunju area. Six of these were local varieties and the others were varieties imported from the United States of America. Each strawberries variety was analysed chemically to determine value of soluble solids, acidity (calculated as citric acid) and deepness of color. Frozen products were prepared by a general method adding sugar to $28^{\circ}\;Brix$. Local varieties Haengok, Bokuh, Keikwan and Daehak No. 1 were not suitable for making into frozen products because of excessive white color in their centers. Blakemore, an imported variety, was best as to color. Chemical analysis showed that imported varieties have higher acidity, and lower content of soluble solids. In a sensory test conducted by fifteen members of Agriculture and Fishery Development Corporation, deeper colors of strawberries did not receive a generally favorable response, and it was found that strawberry colors favored by the America were not liked by Korean well.

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Research on the Effects of Colors and Legibility of Menu on the Choice of Menu Items (메뉴북의 바탕색과 활자의 가독성이 메뉴 선택에 미치는 영향에 관한 연구)

  • Lee, Jong-Sin
    • Culinary science and hospitality research
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    • v.13 no.2
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    • pp.35-46
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    • 2007
  • The food service industry is maturing day by day. Nowadays, people recognize the importance of menu. Menu is not just for the communication of information about menu items. It is also an important marketing tool. Past research was about the choice of menu items. However, the colors and legibility of menu are also important. The basic color and legibility of menu may affect the choice of menu items. Also, customers have different preferences when it comes to menu design. In the past, however, food service industry experts did not work closely with menu designers. The next section reviews the research on the chromatology of menu and lettering preferred by customers. In addition, a method to plan the design of menu is suggested.

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