• 제목/요약/키워드: Textural characteristic

검색결과 58건 처리시간 0.02초

인지방질 함유식품 첨가에 따른 백설기의 물성적 특성 (Mechanical Characteristic of Backsulgi Added with Rich Sources of Phospholipid)

  • 이경아;김경자
    • 한국식품조리과학회지
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    • 제18권4호
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    • pp.381-389
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    • 2002
  • The purpose of this study was to select an ingredient acting as a natural emulsifier to retard the retrogradation of rice cake by the measurement of mechanical characteristics of the cakes. For the purpose, Backsulgi, the most basic type of rice cake, was prepared by adding various ingredients having high contents of lecithin such as raw soybean powder, parched soybean powder, soybean oil, egg yolk powder, and the measurements and observations on the chromaticity, swelling power, pore ratio and cross-section were made. In addition, changes in the textural characteristics of Backsulgi samples were determined while storing them at the temperatures of 4$^{\circ}C$ and 20$^{\circ}C$ for 0, 1, 2 and 3 days. The results of the study were as follows: 1. In terms of chromaticity, the Backsulgi samples added with egg yolk powder, raw soybean flour and parched soybean flour were higher in yellowness(b) than the controls. 2. Both swelling power and pore ratio of Backsulgies added with raw soybean flour were higher than those of controls. 3. A cross-sectional observation using an electron microscope indicated that rice flour particles of controls had uneven pores and were conglomerated in a large lump while Backsulgi samples of raw soybean flour or roasted soybean flour had large and even pores and showed loosened bonding to be transformed into a sponge shape. 4. In hardness, Backsulgi samples added with raw soybean flour had less changes in hardness than that of controls, indicating that the effect of retarding retrogradation was higher when the storage time got longer.

마분말을 첨가한 패티의 품질특성 (Characteristics of Hamburger Patties Containing Yam Powder)

  • 이세희;조성현
    • 한국식품조리과학회지
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    • 제28권6호
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    • pp.781-787
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    • 2012
  • This study was conducted in order to observe the physicochemical and sensory characteristics of hamburger patties added with yam powder (0, 25%, 50%, 75%, and 100% of bread crumbs). Increasing the amount of yam powder in the hamburger patties tended to decrease the cooking loss rate of the weight and the diameters. The moisture content of hamburger patties ranged from 51.90 to 53.94%. Increasing the amount of yam powder in the hamburger patty tended to increase the pH and the redness (a) in the hunter color value; however, it decreased the lightness (L). For the textural characteristics, the addition of yam powder increased the hardness of the hamburger patties. In the sensory evaluation, an addition of 50% and 100% yam powder had the best score in taste as well as in the overall preference. Therefore, this result suggests that adding yam powder of 100% can be applied to the hamburger patties for preference and nutritional aspects purposes.

Study of Littoral Sand Migration Along the West Coast of Ahnmyeon Island, Korea

  • Park, Yong Ahn
    • 한국해양학회지
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    • 제10권1호
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    • pp.1-6
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    • 1975
  • A marine geological investigation of the glass sand deposit in the beach along the west coast of Ahnmyeon Island, South Chung Cheong Province, Korea was carried out to solve the problen of sand material migration, textural properties of the sands and the glass sand reserve for future exploitation. Several bos coring analyses by means of the internal sedimentary structure.i.e., cross- stratification show significantly that most sands are moving and accumulation along the mean vector direction of $N20^{\circ}E-N60^{\circ}$ E in the area investigated. The average mean size of the sand sediments in the area studied ranges from 0.212mm to 0.275mm. The mechanism of sand migration in the area is considered to be interplay between longshore drift and flood tidal current. The sorting value of the sands ranges from 0.24 to 0.50. Therefore, these sand sediments are characteristic to be "well sorted". The average chemical composition of the glass sand in the area is the following: $SiO\_2$:-90.8%, $Al_2O_3$: -2.18%, $Fe_2O_3$:-0.73%, CaO:-1.79. The binocular microscope examination of the sands show that most of the sands are characteristically ice- clear quartz in mineral composition and their count percentage is mostly 92% or 96%.

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반응표면분석법을 이용한 백숙용 토종닭 실용계의 가공조건 최적화 (Optimization of process condition of boiled Korean native chicken by response surface methodology)

  • 김현주;윤혜정;이준헌;허강녕;강보석;조철훈
    • 농업과학연구
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    • 제39권2호
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    • pp.195-202
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    • 2012
  • This study was examined the optimization of processing conditions for taste-assurance factors of boiled Korean native chicken (KNC) through response surface methodology. The effects of two independent variables, including heating time ($X_1$) and water volume ($X_2$), were investigated using central composite design. Hypoxanthine content, lipid oxidation, texture, and sensory results were chosen as dependent variable. Results showed high reliability on hypoxanthine and texture property in leg meat (not breast meat) of boiled KNC. Statistical modeling revealed that 3.5 folds of added water (v/w) based on chicken weight and 73.5 min of cooking time was the optimum for producing characteristic taste and textural properties from the leg meat of KNC.

산지가공 오디음료의 이화학적 특성 및 관능평가 (Physiochemical Characteristics and Sensory Evaluation of Mulberry Fruit Beverages for Rural Food Process)

  • 양향숙;노정옥
    • 동아시아식생활학회지
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    • 제22권2호
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    • pp.246-254
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    • 2012
  • The principal objectives of this study were to analyze the physiochemical properties of four mulberry fruit beverages (MFBs) and develop descriptive analysis procedures for evaluation of their sensory characteristics. Soluble solid, free sugar, pH, acidity, chromaticity, flavonoid, and anthocyanin of MFBs were determined. All MFB samples showed significantly different physicochemical properties ($p$<0.01). Ten highly trained panelists identified the following 11 sensory attributes in the MFBs and defined the terminology for each attribute : turbidity, chromaticity for appearance characteristics, berry, grass, fermented, sweet, astringent, and sour for flavor characteristics, and throat hit, refreshing, and astringent for textural characteristics. There were significant differences in the 10 sensory attributes among the MFB samples ($p$<0.001). In color, the value of MFB3 was significantly higher than those of others ($p$<0.05). In taste and overall acceptance, the values of MFB2 were significantly higher than those of others ($p$<0.01, $p$<0.001). Descriptive terminology of the developed MFBs could explain the sensory attributes of the samples according to this result. Based on this, proper analysis and sensory evaluation techniques could be applied to other fruit beverages to establish their physiochemical characteristic and descriptive sensory attributes.

유과의 저장기간에 따른 휘발성 향미성분 및 특성 분석 (Changes of Korean Traditional Yu-gwa Flavor and Characteristics during Storage)

  • 유승석
    • 한국식생활문화학회지
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    • 제22권1호
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    • pp.83-90
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    • 2007
  • The changes of the color, texture and volatile flavor compounds of Yu-gwa were investigated that affected by the oxidation during storage to characteristic Yu-gwa quality. Among the proximate compositions, carbohydrate was the most abundant component, and followed by lipid and moisture. Although the change of the color showed different pattern by the packaging materials during the storage period, the value of yellowness(b) increased but that of lightness(L) decreased dramatically after 3 month storage. In the textural properties reported closely related with the moisture content, hardness was fairly affected on the period of the storage rather than the type of packaging materials. The flavor compounds of Yu-gwa were analyzed to evaluate the change of distinct volatile compounds during storage. Of the twenty one separated volatile compounds, major volatiles were aldehydes, alcohols and alkenes. The results also showed that polyethylene(PE) contained less volatiles than polypropylene(PP) by the oxidation process during storage.2,4-Decadienal was gradually increased with the period of the storage, whereas octane and furan were decreased. The results provided that the change of the flavor distribution during the storage, and also the possibility of the volatiles such as hexanal, nonanal and 2,4-decadienal as the indicator for the oxidation process.

Microwave oven을 이용한 엿 제조방법 및 특성에 대한 연구 (A Study on the Recipe and the Characteristic of Yeots by Microwave Oven)

  • 김태홍
    • 대한가정학회지
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    • 제23권3호
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    • pp.55-61
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    • 1985
  • 엿의 간편하고 과학적인 제조방법을 모색하기 위하여 본 실험에서는 옛 문헌을 참고로 하고 예비실험을 통하여 엿 제조가 가능한 곡류, 엿 재료의 배합비 및 전자렌지를 이용한 엿의 적합한 제조조건을 결정하였다. 엿의 적합한 제조조건으로 제조된 각종 엿의 특성을 관능검사와 Rheometer를 이용하여 비교, 분석하고 이들의 상관관계를 검토하였다. 본 실험에 의해 나타난 결과는 다음과 같다. 1. 전자렌지를 이용한 엿의 적합한 제조조건은 곡류 380g에 물 320ml를 넣고 1시간 30분동안 보온밥통내에서($60^{\circ}C$) 당화시켜 걸른 후 전자렌지내에서 찹쌀엿, 쌀엿, 조엿은 $120^{\circ}C$까지 가열하였다. 2. 당도계로 측정한 각 재료의 당화전의 당도는 11%로 모두 같았고 당화후의 당도는 각 재료간에 유의차가 있었으며(P<0.05) 찹쌀, 쌀당화액의 당도가 각각 28.8%, 28.2%로 가장 높았고 옥수수 당화액이 17.7%로 가장 낮았다. 그리고 각 당화액을 가열, 농축시킨 후 각 엿의 당도는 각 엿간에 유의차가 나타나지 않았으나 찹쌀엿이 86%로 가장 높고 옥수수엿이 82.7%로 가장 낮은 경향을 보였다. 3. pH meter로 측정한 각 재료의 당화전의 pH는 4.4로 모두 같았고 당화후의 pH는 각 재료간에 유의차가 없었으나 수수당화액이 4.7로 가장 높고 옥수수당화액이 4.3으로 가장 낮았다. 4. 관능검사에 의한 엿의 특성에 대한 평가에서 가장 바람직한 엿으로 평가를 받은 것은 찹쌀엿이었고 다음은 쌀엿, 조엿, 수수엿, 옥수수엿 순이었으며 찹쌀엿과 쌀엿간에는 유의차가 없었고 또한 조엿, 수수엿, 옥수수엿은 바람직하지 않다는 평가를 받았고 이들은 찹쌀엿, 쌀엿과는 유의적인 차이가 있었다. Rheometer에 의한 Texture 측정 결과 거의 같은 정도의 우수한 평가를 받았으므로 찹쌀엿은 쌀엿으로 대체하여 이용할 수 있으며 조엿, 수수엿, 옥수수엿은 엿제조가 가능하기는 하지만 엿의 품질에 있어서는 찹쌀엿, 쌀엿에 비해 낮았다. 그러나 실제로는 찹쌀엿, 수수엿 및 쌀엿이 주로 제조 , 이용되고 있는 경향인데 비용이 적게 들며 우수한 엿으로 평가된 쌀엿을 제조, 이용하는것이 바람직하다고 사료된다.

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딸기쨈의 색깔과 물성에 관한 연구 (Studies on Color and Rheological Properties in Strawberry Jam)

  • 이종혁;장규섭;윤한교
    • 농업과학연구
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    • 제14권1호
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    • pp.134-143
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    • 1987
  • 딸기원료 및 가공제품의 색깔을 비교하고 원료에서 오는 영향을 관찰하기 위하여 물리적인 측정기기를 이용해서 색깔의 수치를 조사하였다. 딸기의 물성은 레오텍스춰 메타를 이용해서 측정하였고, 아울러 딸기쨈의 리올로지 특성을 측정하였던바, 얻어진 결과는 다음과 같다. 1. 딸기의 색깔을 헌터값 X, Y, Z Lab로 나타날때, 숙성도에 따라 변화하는 것을 알 수 있다. 또한 pH 의 변화에 따라 a의 값이 규칙적으로 변화하였으며, 색깔의 양상은 수치적으로 나타낼 수 있었다. 즉 미숙과, 적숙과, 과숙과의 쨈에서 pH 2인 경우의 수치는 37.48, 42.21, 45.04가 됨을 알 수 있다. 2. 딸기의 적색소는 시간이 흐름에 따라 퇴색되고 헌터값의 수치는 낮아지는 경향이었다. 3. 또한 딸기쨈의 색소는 시간의 흐름에 따라 퇴색됨을 보여주었다. 즉 20일후의 딸기쨈의 a값은 16.63이었으나 50 일후의 값은 11.28, 90 일 후의 값은 7.65로 되었다. 4. 딸기에서는 T.P.A에 의해 나타난 양상은 첫번째 피크가 높았으며 이는 체리, 포도, 파인애플과 같은 양상을 보였다. 5. 딸기 조직의 특성인 Hardness 와 Cohesiveness의 특성관계는 반비례적이었다. 6. 딸기쨈은 의가소성 (PseudopIastic) 특성을 가지고 있으며, 또한 점도도 지수는 온도의존성을 보였다. 7. 딸기쨈의 활성화 에너지는 2.03 Kcal/g mol 으로 애플소스 1.3Kcal/g mol 토마토 농축액 1.9Kcal/g mol 보다 높은값을 나타내었고, 토마토 케찹 3.2Kcal/g mol 보다는 낮은 값을 나타내었다.

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장 미쉘 빌모트의 전시공간에 나타난 실내디자인 표현특성 (Expressional Characteristics of Interior Design Presented in Exhibition Spaces of Jean-Michel Wilmotte)

  • 송가현;김문덕
    • 한국실내디자인학회논문집
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    • 제23권6호
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    • pp.87-94
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    • 2014
  • Today, the growing number of international architects enters the open market of South Korean architecture and interior from exhibition spaces such as art galleries to buildings of major companies. Establishing new local landmarks, their works have a considerable influence on the development of architecture. Among many, French architect Jean-Michel Wilmotte has worked consistently in South Korea. The purpose of this study is to analyze and put together the expression characteristic of the interior design in his exhibition spaces including Gana Art Gallery. Jean-Michel Wilmotte has designed based on the history, culture, society, and arts in France and other European countries, and is influenced by architects like Charles Rennie Mackintosh, Josef Hoffmann, and Carlo Scarpa. Such an influence is shown in the form of contrast between verticality and horizontality as well as the fortification in his modern classical characteristic, which is one of his expression characters. In his work of improving the ancient architecture, Wilmotte is good at creating a modern space through contextual expression, and the textural contrast between materials of the past and the present. Thus I performed an analysis of the expression characteristic of the interior design in National Museum of Contemporary Art of Chiado in Lisbon, Cognac Hennessy Museum in France, Gana Art Gallery in Korea, Mus$\acute{e}$e du Pr$\acute{e}$sident Jacques Chirac in Sarran, France, Ullens Center for Contemporary Art (UCCA) in Beijing, and lastly Mus$\acute{e}$e d'Orsay in Paris. The results show that he maintains the spatial context by applying contemporary design to the preserved existing structure, continues the flow of exhibition through the lightings in the corridors and on the ceiling, and seeks for a balance by adding vertical or horizontal elements to the elevation. In the interior, the staircase and exhibition structure are turned into objects, and the contrasting texture of the wall vitalizes the space. Wilmotte redesigns the space of the past and the present by using indirect joint that allows an organic connection of the old and new structures, and by minimizing the conflict between the two elements through prefabrication. The expression character of his interior design will be potential resources for architects and interior designers to develop their own design languages.

소재에 따른 스커트의 Lay Mapping 효과에 관한 연구 - 4D-Box 디자인 프로그램을 이용하여 - (A Study on the Effect of Material Choice on the Lay Mapping of Skirts - Using 4D-Box Design Program -)

  • 방수란
    • 복식
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    • 제58권10호
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    • pp.65-77
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    • 2008
  • The purpose of this study is to analyze the correlation between the density, the Count and the width of cross section in 2D function through comparison the difference of simulated fabrics based on the various yarns, and to compare the 3D effect by Lay Mapping of diverse fabrics. The method of research is to weave the eight fabrics composed of cotton, linen, worsted, slender yarn, loop, $m{\acute{e}}lange$, woolen, and yarn twist with Hi-Tex program, and to practice 3D mapping with Hi-Print program. As a mapping object, the flared skirt which is a basic costume item is selected. As a result, the thickness of yarn in CAD system was fixed by the width of cross section rather than Count, especially by the width of core section not including the fluff section. The type of yarn such as cotton yarn, linen yarn, and worsted had effect on the shape of texture, but had few interrelations with dimension. In the case of 3D mapping, the textural characteristic and the dimension were presented precisely, whereas there were several limitations. First, the thickness of tissue has not been represented. Secondly, the effect of texture such as fuzzy look, loop was not expressed on the skirt outline including sideline and hemline. Thirdly, the difference of silhouette was not distinct. The common point in 2D and 3D operations is that the representation of texture is relatively accurate and that is difficult to measure and manifest of thickness, the side. For more professional digitalizing in fashion industry, above all in the domain of 3D, it must be supplement the subdivided and differentiated mapping process according to the texture, deviating from the existing analog-based organization which has to designate the form and silhouette suitable for tissue.