• Title/Summary/Keyword: 색상검사

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Quality Characteristic of Beverage with Gastrodia elata Blume Extract (천마추출물을 이용한 음료의 품질특성)

  • Hong Sun-Pyo;Jeong Hae-Sang;Jeong Eun-Jeong;Shin Dong-Hwa
    • Journal of Food Hygiene and Safety
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    • v.21 no.1
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    • pp.31-35
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    • 2006
  • This study was performed to evaluate the Quality characteristics of the beverage with Gastrodia elate Blume extract. In the sensory evaluation of Gastrodia elata Blume beverage, score of color, flavor, taste, and overall acceptability were the best for a mixing ratio of extract 50%, oligosaccharide 10%, citric acid 0.02%, apple juice 7%, and distilled water 32.98%. Brix and pH of Gastrodia elate Blume beverage were 16.97 and 4.27 Free sugars of Gastrodia elata Blume beverage were composed glucose (3417.72 mg/100g), fructose (2215.68 mg/100g), and sucrose (1615.68 mg/100g). Organic acids of Gastrodia elata Blume beverage were composed malic (472.60 mg/100g), citric (290.27 mg/100g), succinic (276.63 mg/100g), and fumaric acids (1.73 mg/100g).

Effects of Sourdough Powder on the Physical Properties of the Bread Flour (Sourdough 분말첨가가 소맥분의 물리적 특성 변화에 미치는 영향)

  • 김석영;황성연
    • The Korean Journal of Food And Nutrition
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    • v.17 no.2
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    • pp.171-176
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    • 2004
  • The purpose of this study was to examine physical properties of the bread flour added two different commercial sour dough powder. Addition of sour dough powder didn't show different water absorption, but reduce stability and increase breakdown on farinogram. Initial pasting temperatures of bread flour were increased by 0.7-1.3$^{\circ}C$ when sour dough powder was added. Peak viscosity were increased by 3-6 RVA with addition of Phil IM 1, but addition of Phil XN 290 didn't show much difference with unadded bread flour Hardness of bread added Phil XN 290 and Phil IM 1 were lower than control after 2 days of making bread, but after 4 days they showed rapid increment. Sensory test showed that addition of Phil XN 290 2% and Phil IM 1% had better general evaluation than the others.

The Characteristics of Soybean Dasik in Addition of Black Pigmented Rice (흑향미 첨가량에 따른 콩 다식의 특성)

  • Cho Mi-Za
    • The Korean Journal of Food And Nutrition
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    • v.19 no.1
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    • pp.58-61
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    • 2006
  • This study was carried out to investigate the effect of black pigmented rice flour added in the soybean on the quality of soybean dasik. Chewiness, gumminess, cohesiveness and hardness were varied significantly by addition of black pigmented rice while springiness and adhesiveness were no difference in the soybean dasik. Chewiness in addition of over 40% was significantly reduced than that of control. The more addition of black pigmented rice reduced the gumminess the more significantly. Cohesiveness in addition of over 40% was reduced significantly. Hardness was significantly decreased with the amount of addition of black pigmented rice. Panel sensory test scores indicated that the soybean dasik with addition of 40% black pigmented rice was the most propper for color, taste, flavor and texture.

Changes of Chemical Components of Fermented Tea during Fermentation Period (미생물을 이용한 후발효차의 발효기간별 화학성분 변화)

  • Kim, Yong-Shik;Choi, Goo-Hee;Lee, Kyung-Haeng
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.12
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    • pp.1807-1813
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    • 2010
  • To manufacture the fermented tea with hygienic quality, green tea was fermented using Bacillus subtilis, Saccharomyces cerevisiae and Lactobacillus bulgaricus and chemical composition and sensory changes were evaluated during fermentation period. The lightness of the fermented samples decreased; in contrast, redness and yellowness increased. Especially, the color change of the fermented tea using B. subtilis was higher than those of control and other samples with different microorganisms during fermentation period. Chlorophyll contents were decreased by similar level regardless of fermentation treatments. The fastest decrease of total catechins contents were found in the tea fermented with B. subtilis and significantly reduced by increase of fermentation period. However, total catechin contents of the tea fermented by L. bulgaricus were not decreased. The caffeine contents of the microbial fermented teas were more decreased than that of control, even though the decrease was slight. Sensory panelists preferred the tea fermented by B. subtilis to those of control or other fermentation treatment.

Study on an Automatic Punching System for a LED Display using Flexible Plates (LED 디스플레이용 유연 보드의 자동 펀칭 시스템 연구)

  • Choi, Hyeung-Sik;Kang, Jin-Il;Her, Jae-Gwan;Han, Jong-Suk
    • Journal of Advanced Marine Engineering and Technology
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    • v.34 no.5
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    • pp.711-717
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    • 2010
  • In this paper, a new automatic punching system that generates pinholes expressing texts or images on a plastic plate is developed. The pin-holed plate is used as a new glamorous display board reflecting colourful lights from the light emitting diode (LED) installed on the edge side of the plate. The punching system has four actuators which work together to make multiple holes with accurate position and depth on the plastic plate. For even reflection of the lights from texts or images on the board and fast production of the pin-holed boards, we developed an accurate actuating structure of the system cooperating with a PID control algorithm. We also built a GUI-based integrated control system to help users easily design luminous texts or images on the plastic plate. Also, we conducted a performance test of the system to verify the punching speed and depth control of the pin holes on the plastic plate.

A Study on Rheological Changes of Redbean Jam druing Storage (단팥의 저장 중 물성변화에 관한 연구)

  • Lee, Jeong-Hoon;Shin, Ho
    • The Korean Journal of Food And Nutrition
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    • v.11 no.3
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    • pp.283-288
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    • 1998
  • The changes of the rheological properties of redbean jam were investigated during storage. The relationship between moisture content (40, 45 and 50%) and agar concentration (1, 0.1 and 0.2%) were studied for 5 days of storage. Water holding capacity was measured by placing redbean jam on Toyo Filter paper(No. 5A) and moisture movement was measured by placing redbean jam in bread. Sensory characteristics were examined in terms of color, flavour, preference, bitterness and taste. The results were as follows. Water holding capacity of redbean jam was increased as the solid content of sugar and agar concentration increased. Moisture movement was decreased as the solid content of sugar and agar concentration increased. Color, flavour, preference and taste were increased for the first day but decreased from the second day. There was significant difference(P<0.01). Bitterness did not show significant difference. 45% of moisture content, 0.1% of agar concentration and the first day showed the highest preference.

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Determination of Optimum Sterilization Condition for the Production of Retort Pouched Curry Sauce (레토르트 카레 소스 생산을 위한 최적살균 조건의 설정)

  • Chung, Myong-Soo;Cha, Hwan-Soo;Koo, Bon-Youl;Ahn, Peong-Ug;Choi, Chun-Un
    • Korean Journal of Food Science and Technology
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    • v.23 no.6
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    • pp.723-731
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    • 1991
  • In order to optimize sterilization conditions of retort pouched curry sauce, sterilization processes for eighteen conditions by varying temperature, time and method were conducted through $3^{2}{\times}2^{1}$ experimental factorial design. Quality evaluations before and after sterilization included measurements of vitamin (niacin) retention, pH and color differences, and organoleptic test(taste, color and viscosity). $F_{o}$ values were also measured at each condition. Product qualities were mainly affected by sterilization temperature and time, whereas sterilization method had no significant effect. Effect of sterilization time on product qualities was higher than that of sterilization temperature. From the response surface analysis, an optimum range of sterilization condition simultaneously satisfying desired specifications was determined to be $123.5^{\circ}C$, 21.5 min to $127.5^{\circ}C$, 17.0 min. In this range, the sterility($F_{o}$ value) at a cold point during sterilization was approximately 15.0 min.

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Quality Characteristics of Muffin Added Red Yeast Rice Flour (홍국분말을 첨가한 머핀의 품질 특성)

  • Park, Sung-Hee;Lim, Seong-Il
    • Korean Journal of Food Science and Technology
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    • v.39 no.3
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    • pp.272-275
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    • 2007
  • Red yeast rice flour, which is a natural functional material, was used in muffin production at different concentrations ranging from 0 to 10%. The initial pasting temperature was not affected by the addition of red yeast rice flour, whereas peak viscosity and final viscosity decreased with increasing concentrations. The lightness value of the muffins decreased, however, the redness value increased with increasing amounts of red yeast rice flour. The bulk of the muffins was generally reduced by the addition of red yeast rice flour. At the 10% concentration, hardness and viscosity were similar to the control, and there were no changes in springiness or cohesiveness. For the sensory evaluation, parameters such as appearance, color, texture, taste, and overall acceptability increased significantly from the control at the 3% concentration of red yeast rice flour, but flavor decreased with increasing amounts of red yeast rice flour. Based on these results and the sensory evaluation specifically, the optimal amount of red yeast rice flour added to the muffins was the 3% concentration.

Quality Characteristics of Sponge Cakes with Addition of Pleurotus eryngii Mushroom Powders (새송이 버섯 분말을 첨가한 스폰지 케이크의 품질 특성)

  • 정창호;심기환
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.4
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    • pp.716-722
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    • 2004
  • This study investigated the quality characteristics of sponge cakes with addition of mushroom (Pleurotus eryngii) powders prepared by different drying methods, hot air (HDMP: hot air dried mushroom powder) and freeze drying (FDMP: freeze dried mushroom powder). The specific gravities, viscosity, height, specific volume, color, texture and sensory evaluation of bread dough containing 3%, 5% and 7% mushroom powders were measured. The specific gravity and viscosity tended to increase according to the addition of mushroom powder. The height and specific volume tended to decrease according to the addition mushroom powder. Substituting mushroom powder for flour also resulted in decreased yellowness and lightness and increased redness of the cake crust. The hardness of cakes containing mushroom powders was higher than tat of control without mushroom powders. The color of cake crust became darker as the amount of mushroom powders increased. The results of sensory evaluation by QDA (quantitative descriptive analysis) to compare two different drying methods showed that overall acceptalility of sponge cakes containing 3% and 5% mushroom power were higher than that of control without mushroom powder.

Boundary-preserving Stereo Matching based on Confidence Region Detection and Disparity Map Refinement (신뢰 영역 검출 및 시차 지도 재생성 기반 경계 보존 스테레오 매칭)

  • Yun, In Yong;Kim, Joong Kyu
    • Journal of the Institute of Electronics and Information Engineers
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    • v.53 no.5
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    • pp.132-140
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    • 2016
  • In this paper, we propose boundary-preserving stereo matching method based on adaptive disparity adjustment using confidence region detection. To find the initial disparity map, we compute data cost using the color space (CIE Lab) combined with the gradient space and apply double cost aggregation. We perform left/right consistency checking to sort out the mismatched region. This consistency check typically fails for occluded and mismatched pixels. We mark a pixel in the left disparity map as "inconsistent", if the disparity value of its counterpart pixel differs by a value larger than one pixel. In order to distinguish errors caused by the disparity discontinuity, we first detect the confidence map using the Mean-shift segmentation in the initial disparity map. Using this confidence map, we then adjust the disparity map to reduce the errors in initial disparity map. Experimental results demonstrate that the proposed method produces higher quality disparity maps by successfully preserving disparity discontinuities compared to existing methods.