• 제목/요약/키워드: Texture properties

검색결과 2,137건 처리시간 0.026초

녹차분말 첨가가 쌀밥의 항산화 활성 및 물성에 미치는 영향 (Effects of Green Tea Powder Addition on Antioxidant Activities and Texture Properties of Cooked Rice)

  • 양진우;이경민;함현미;곽지은;김영화;정헌상;이준수
    • 한국식품영양과학회지
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    • 제46권6호
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    • pp.765-770
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    • 2017
  • 본 연구는 소비자가 추구하는 기능성 식품의 다양한 개발을 위해 녹차를 쌀밥에 접목시킴으로써 녹차의 생리활성이 부여된 기능성 쌀밥의 개발 가능성 검토를 위해 실시하였다. 녹차분말을 첨가한 쌀밥의 항산화 활성과 생리활성 물질의 변화 및 물성 변화를 알아보기 위해 취반 시 사용되는 물에 녹차분말을 1, 2, 3%로 첨가하여 취반하였다. 이후 제조된 밥은 동결건조 후 메탄올 추출물을 이용하여 항산화 성분 및 항산화 활성을 분석하였다. 또한, 취반 후 물성을 측정하여 그 변화를 알아보았다. 취반 후 녹차분말의 함량이 증가할수록 폴리페놀과 플라보노이드의 함량이 농도 의존적으로 증가하는 경향을 보였다. 쌀밥의 항산화 활성은 첨가한 녹차분말의 농도에 의존적으로 ABTS 및 DPPH 라디칼 제거능력이 증가하는 경향을 보였으며 환원력 및 지질과산화억제 효과에서도 첨가된 녹차분말에 의존적으로 활성이 증가하였다. 반면 녹차분말을 첨가한 쌀밥의 물성을 측정한 결과 녹차를 첨가하였을 때 경도가 증가하는 경향을 보였으나 유의적인 차이를 보이지 않았다. 이 연구 결과를 통해 녹차분말을 첨가하여 취반할 경우 식감을 유지하면서 녹차의 생리활성 물질도 부여할 수 있어 기능성 쌀 가공식품으로서의 적극적인 활용이 가능할 것으로 생각된다.

동충하초 첨가식빵의 저장기간에 따른 이화학적. 텍스쳐 특성 (Physicochemical and Texture of Bread added Paecilomyces japonica according to Storage Period)

  • 박금순;김수진;박어진
    • 동아시아식생활학회지
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    • 제11권6호
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    • pp.485-497
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    • 2001
  • For a period of 5 days, the quality of breads with Paecilomyces japonica powder were investigated using chemical, sensory, and mechanical evaluations at $25^{\circ}C$. The result of analysis of chemical properties revealed that the pH value of dough was increased as the amount of Paecilomyces japonica powder increased, but volume of dough and baking loss rate were decreased. Breads with 1% and 2% Paecilomyces japonica powder showed a good overall preference in sensory evaluation. As storing time passed. moisture content, lightness, and redness were decreased in all breads, but yellowness increased. Hardness and gumminess of texture analysis were increased as storing time passed, but springiness decreased. Springiness of the mechanical properties was negatively correlated with pH value of dough and volume of bread, while was positively correlated with volume of dough and baking loss rate. In the analysis of correlation between sensory and mechanical properties showed that hardness of mechanical properties had negative correlation with softness, moistness, and springiness. Cohesiveness of mechanical properties had positive correlation with acceptability.

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3차원 물체의 형상 인식에 관한 연구 (A Study on Shape from Patterns)

  • 김도년;조동섭
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1990년도 하계학술대회 논문집
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    • pp.542-545
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    • 1990
  • Texture provides an important source of information about the local orientation of visible surfaces. In this study the 3D shape of a textured surface is recovered from its perspective projection image on the assumption that the texture is homogeneously distributed. To recover 3D structure, the distorting effects of the perspective projection must be distinguished from properties of the texture. In this study, paraperspective projection, approximation of perspective projection, has employed.

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유도결합 화학 기상 증착법(ICP-CVD)를 이용한 ZnO 박막의 texture조절 및 광학적 특성 평가 (Texture control and optical properties of ZnO films by inductively coupled assited chemical vapor deposition)

  • 남경희;홍원혁;이정중
    • 한국표면공학회:학술대회논문집
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    • 한국표면공학회 2009년도 춘계학술대회 논문집
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    • pp.204-204
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    • 2009
  • 추가적인 습식 에칭 공정 없이 유도결합 화학 기상 증착법을 이용하여 공정변수 조절만으로 ZnO 박막의 texture와 표면 거칠기를 조절하여 Hzae 특성을 향상시켰다.

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디프도로잉 시 DP강의 집합조직 및 이방성 거동 모사 (Simulation of Texture Evolution and Anisotropic Properties in DP Steels during Deep Drawing Process)

  • 송영식;김병진;한성호;진광근;최시훈
    • 소성∙가공
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    • 제17권7호
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    • pp.517-522
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    • 2008
  • A visco-plastic self-consistent (VPSC) polycrystal model has been applied to simulate texture simulation and anisotropic properties of DP steels during deep drawing process. In order to evaluate the strain path during deep drawing, a steady state was assumed in the flange part of deep drawn cup. The final stable orientations were strongly dependent on the initial location in the blank. The evolution of anisotropy of DP steel sheets has been demonstrated through comparison of plastic strain rate vector at the different plastic strain levels.

참게육 첨가 맛두부의 조직 및 관능 특성 (Sensory and Texture Properties of Seasoned Tofu Containing Freshwater Crab Meat)

  • 류홍수;신은수;장대흥
    • 한국수산과학회지
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    • 제42권3호
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    • pp.190-196
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    • 2009
  • To optimize the mixing ratio of ingredients for optimal sensory qualities of seasoned tofu, a response surface methodology with a central composite design was performed on tofu containing freshwater crab meat (TCM). Using the desirability function technique, the optimal formulation was determined to be 3.67 g of freeze dried meat, 5.54 g of garlic powder, and 2,120 mL of soymilk. In the texture profile analysis, tofu prepared using the optimal ingredient ratio had a higher hardness, cohesiveness and gumminess than commercial tofu but TCM value for adhesiveness, springiness and chewiness were lower. However, the texture properties of TCM were not significantly different than those of commercial tofu.

감자전분 함량이 라면의 물성에 미치는 영향 (Effect of Potato Starch Content on Physical Properties of Ramyon)

  • 송정민;신숭녕;박해룡;유병승
    • 한국식품영양과학회지
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    • 제30권3호
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    • pp.450-454
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    • 2001
  • The physical properties of ramyon made of potato starch at various levels (12, 14 16%) were investigated to find out the effect of potato starch on ramyon quality. The higher starch content in dough, the higher water content after steaming and the lower moisture content after deep frying. As the starch content increased, the magnitudes of extrusion work of cooked ramyon and capillary viscosity of ramyon soup increased but the starting temperature of gelatinization decreased. There was a good correlation ($R^2$=0.99) between extrusion work and capillary viscosity. Firmness and chewiness values measured by texture analyser decreased with increase in starch content while tenderness and overall texture preference evaluated by sensory analysis increased.

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무윤활 압연한 알루미늄 판재의 기계적 특성과 성형성 (Mechanical properties and formability of asymmetrically rolled aluminum alloy sheet)

  • 사이드무로드 아크라모프;김인수
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2009년도 춘계학술대회 논문집
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    • pp.429-431
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    • 2009
  • Drawability and other mechanical properties of sheet metals are strongly dependent on their crystallographic orientations. In this paper the formability of the AA 5052 Al alloy sheets was investigated after asymmetric rolling and subsequent heat treatment. In most cases, after asymmetric rolling specimens showed a fine grain size and subsequent heat treated specimens showed that the ND // <111> texture component were observed. The anisotropy of formability is often described by the plastic strain ratios (r-value) as a function of the angle to the rolling direction in sheet metal. For a good formability, a high r-value is required in sheet metals. In the asymmetry rolled and subsequent heat treated Al alloy sheet, the variation of the plastic strain ratios have been investigated in this study, The plastic strain ratios of the asymmetry rolled and subsequent heat treated AA 5052 Al alloy sheets were higher than those of the original Al sheets. These could be related to the formation of ND // <111> texture components through asymmetric rolling in Al sheet.

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전분 종류를 달리한 살구편의 품질 특성 (Quality Characteristics of Salku-Pyun with Various Starches)

  • 박금순;권진희;허성미
    • 동아시아식생활학회지
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    • 제9권4호
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    • pp.452-460
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    • 1999
  • This study was conducted in order to investigate the quality characteristics of Salku Pyun which was made by using mungbean, potato, sweet potato and corn starches. The pH of salku juice was 3.45 to 3.50 and the brix of that was 7.0%. The water content and water activity of salku pyun with potato starch was highest. The result of sensory evaluation showed that appearance, flavor, overall quality were highest in the Salku Pyun made with potato starch while texture, taste were highest in the Salku Pyun made with mungbean starch. Mechanical properties of salku pyun with mungbean starch was significantly higher in adhesiveness, hardness, chewiness. Texture of sensory evaluation were positively correlated with springiness, hardness, and chewiness of mechanical measurement. The factors which affect the overall quality on sensory evaluation were texture quality, taste quality, hardness, color and springiness.

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디프드로임 시 DP강의 집합조직 및 이방성 거동 모사 (Simulation of Texture Evolution and Anisotropic Properties in DP steels during Deep Drawing Process)

  • 송영식;김병진;한성호;진광근;최시훈
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2008년도 춘계학술대회 논문집
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    • pp.396-399
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    • 2008
  • A visco-plastic self-consistent (VPSC) polycrystal model has been applied to simulate texture simulation and anisotropic properties of DP steels during deep drawing process. In order to evaluate the strain path during deep drawing, a steady state was assumed in the flange part of deep drawn cup. The final stable orientations were strongly dependent on the initial location in the blank. The evolution of anisotropy of DP steel sheets has been demonstrated through comparison of plastic strain rate vector at the different plastic strain levels.

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