• Title/Summary/Keyword: Texture properties

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Effects of Hot Rolling on Microstructures and Magnetic Properties

  • Hong, Byung-Deug;Kim, Jae-Kwan;Cho, Kyung-Mox
    • Journal of Magnetics
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    • v.11 no.3
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    • pp.111-114
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    • 2006
  • We electroplated copper-cobalt thin films on a silicon substrate, which had 150 nm thick copper seed layer. The adhesion between the two metallic layers could be increased by utilizing a proper organic additive, pulse plating technique, and high temperature annealing. The thin films exhibited columnar growth of the deposits and enhanced adhesion. This is attributed to the grain growth mechanism introduced by the additive and annealing.

The Study of Changes of Properties in Kyongdan Added Sungumcho Powder (승검초 첨가에 의한 경단의 특성 변화에 관한 연구)

  • 임영희;김미원;김애정
    • Journal of the East Asian Society of Dietary Life
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    • v.9 no.1
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    • pp.81-92
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    • 1999
  • This study attempted to examine the effect on sensory characteristics and texture of Kyongdan in various volumes of adding Sungumcho power. The results are summarised as follows. 1. Sensory evaluation: The best recipe of Sungumcho Kyongdan was Sungumcho powder 1%, 2%, 3%. 2. The result of rheometer test was 1%, 2%, 3%, 4%, 5% Sungumcho Kyungdan were stabler than 0%.

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Effect on Formation of Liquid Crystal Pitch (액정핏치 형성에 관한연구)

  • Gwon, Yeong-Bae;Ryu, Hae-Il
    • 한국기계연구소 소보
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    • s.13
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    • pp.15-25
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    • 1984
  • The infrared spectra were determined to discover the characteristics and properties of poff-, PV-, and cc-samples, and studied influence on the formation of mesophase or liquid crystal. The experimental results were as follows; a) Samples with long aliphatic side chain appear cracking texture on temperature forming liquid crystal. b) The fine isotropic microstructure appears in a heterogeneous material containing sulfur, 7.18 w%. c) In the size of molecular weight the lighter than 500 form liquid crystal. d) When poff-sample was treated at $400^{\circ}C$ aliphatic hydrocabon compounds decrease, presented well-oriented bulk liquid crystal.

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A Study on the Microstructure and Properties of Y-BA-Cu-O/Ag composite High $T_{c}$ Superconductor prepared by Sinter-forging Process (Sinter forging으로 제조한 Y-BA-Cu-O/Ag 고온 초전도 복합체의 미세조직과 특성)

  • Park, Jong-Hyeon;Kim, Byeong-Cheol;Song, Jin-Tae
    • Korean Journal of Materials Research
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    • v.4 no.1
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    • pp.37-43
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    • 1994
  • Y-Ra-Cu-0 oxide superconductors were fabricated by the sinter-forging method to make the critical current density improve through controlling of microstructure and crystal texture. The grain alignment of oxide superconductor was formed by the sinter-forging process and it's c-axis orientation was parallel to the press direction.The orientation factor of texture increased with sinking temperature and pressure, and also grain alignment was improved by the addition of Ag. As for the sinterforged Y-Ba-Cu-O/Ag sample, the $T_c$(on-set) was not almost varied with the sinter-forging temperature, but $T_c\;^{zero}$ decreased more or less at high sinter-forging temperatures. In addition, it was observed that added-Ag was mainly distributed along the grain boundar~es in the (123) matrix, resulting in the densification of microstructure. From these results, i t was thought that the improvement of $J_c$ over 2000A/$\textrm{cm}^2$ was attributed to the texture, densification of microstructure, and (123) grain growth due to the Ag addition.

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Manufacture of Processed Foods and its Quality Characteristics from Kumquats, a Citrus Variety Produced in Cheju (금감 가공식품(加工食品)의 제조(製造)와 품질특성(品質特性))

  • Koh, Jeong-San;Kim, Chan-Shick;Ko, Myung-Soo;Yang, Young-Tack
    • Korean Journal of Food Science and Technology
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    • v.25 no.1
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    • pp.33-38
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    • 1993
  • In order to utilize Kumquats as a processed products, a Citrus varieties produced in Cheju island, physicochemical properties of Kumquats, sensory evaluation of frozen Kumquats, sensory evaluation and texture parameter of Kumquats processed foods were investigated. Fruit size, weight, peel ratio, peel thickness, and Brix/acid ratio of Youngpa Kumquats cultivated in green house were 29.5 mm, 16.10g, 4.63 mm and 20.0 respectively, and it was suitable for as raw-eating and processing materials. Kumquats juice consisted of 58.27% citric acid, 32.49% malic acid, 9.14% tartaric acid and 0.08% maleic acid of total organic acids. Organic acid contents of Kumquats juice was very different from Citrus unshiu juice in malic acid content. Sensory evaluation on frozen Kumquats stored at $-18^{\circ}C$ for 6 month was good for appearance, taste and texture as summer commodity. Vitamin C content of frozen Kumquats was 74.94 mg/100g, and its content was decreased slightly during fronzen storage. Hardness on Kumquats jam was lowered from 1,294 to 355 g-force as the ratio of Kumquats juice content was increased, but the changes of other texture parameter were not so large. Kumquats jam contained $40{\sim}60%$ orange juice was evaluated as superior to orange jam for panelists.

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Quality Characteristics of Pan Bread Added with Black Garlic Flour (흑마늘 가루를 첨가한 제빵의 품질 특성)

  • Kim, Jung-Hoon;Lee, Myung-Ho;Lee, Sang-Ah;Choi, Young-Sim
    • Culinary science and hospitality research
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    • v.16 no.3
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    • pp.286-297
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    • 2010
  • This study examines physiochemical characteristics of functional bread with black garlic flour added such as its content, texture, sensory test and quality properties. The loaf volume and weight of black garlic flour-added pan bread showed that for the control, the loaf volume was the greatest, and the more the black garlic flour content increased, the smaller the loaf volume became. The change of crust chromaticity showed that the L value decreased significantly, and crust chromaticity thickened, and as the black garlic flour content increased, a value and b value decreased. The characteristics of texture showed that the hardness and chewiness decreased as the black garlic flour content increased, and gumminess increased significantly while there was no significant difference in cohesiveness. The flavor, taste and texture of pan bread with black garlic flour content didn't showed a significant difference with the control. Consequently, the black garlic flour-added wheat flour was no significant difference with the control up to 3% black garlic flour-added wheat flour, which can be used as a product.

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Effect of Cooking Methods and Reheating on Texture of Sausage (시판소시지의 조리방법 및 재가열이 조직특성에 미치는 영향)

  • 김성희;이숙미;조정순
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.1
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    • pp.37-44
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    • 1997
  • The Purpose of this study was to evaluate the effect of cooking methods and reheating on texture characteristics of sausage. Sausage samples were cooked(microwaving, gas-broiling and frying), reheated on day 3 and 6 after refrigeration and put to evaluation of sensory and texture characteristics. The results of sensory evaluation showed that hardness, salty taste, rancid flavor and after-taste were increased but wetness and chewiness were decreased by reheating after refrigeration. Overall acceptability was the highest when the samples were gas broiled and reheated on day 3 after refrigeration. As for the estimation of texture changes by rheometer, hardness, cohesiveness, elasticity, gum-miness and chewiness tended to increase by reheating after refrigeration. Hardness, cohesiveness, gumminess and chewiness were the highest when the samples were gas-broiled and reheated on day 3 after refrigeration.

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Relationship between Molecular Structure of Rice Amylopectin and Texture of Cooked Rice (쌀의 아밀로펙틴 분자구조와 밥의 텍스쳐)

  • Kang, Kil-Jin;Kim, Kwan;Kim, Sung-Kon
    • Korean Journal of Food Science and Technology
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    • v.27 no.1
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    • pp.105-111
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    • 1995
  • The relationship betwwen the molecular structure of amylopectin and the texture of cooked rice was investigated using Korean rice [3 varieties of Japonica type and 3 varieties of Tongil type(Japonica-Indica breeding type)]. The molecular structure of rice amylopectin was polymodal and distributed A chain of $\overline{DP}$ 12.4, short B chain of $\overline{DP}$ 20.6, B chain of $\overline{DP}$ 26.3, long B chain of $\overline{DP}$ 45 and super long chain of above $\overline{DP}$ 55. The super long chain of amylopectin was composed of long linear chain with poorly branched chain. Also, the super long chain of amylopectin showed positive correlated with average chain length, inherent viscosity and ${\beta}-amyloysis$ limit$({\%})$, but negative correlated with ${\lambda}max$ of iodine reaction of amylopectin. The structural properties of amylopectin in Japonica type were different from those of amylopectin in Tongil type. In relationship between molecular structure of amylopectin and texture of cooked rice, the average chain length, inherent viscosity, ${\beta}-amyloysis$ limit and super long chain of amylopectin was showed a positive correlation with hardness, but a negative correlation with adhesiveness of cooked rice. The long chain of rice amylopectin is the less, the eating quality of cooled rice was the better. These results suggest that the molecular structure of rice amylopectin could be responsible for the texture of cooked rice.

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Investigation of the changes in texture of soybean sprout depending on the heating conditions in sous-vide and conventional hot water cooking (Sous-vide가열과 열탕가열 조건에 따른 콩나물 머리와 줄기의 조직감 변화에 관한 연구)

  • Lee, Yun Ju;Jung, Hwabin;Yoon, Won Byong
    • Journal of Applied Biological Chemistry
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    • v.61 no.3
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    • pp.219-226
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    • 2018
  • The purpose of this study was to investigate the effect of thermal treatments, such as a sous-vide and a conventional hot water cooking, on the texture changes of soybean sprout. A novel method to measure texture properties of soybean sprout have been determined because of the irregular geometry of soybean sprout. The shape of cotyledon of bean spout was accurately analyzed using an image processing and a geometry model. To minimize the effect of the contact area on the texture measurement, a blade type of probe was selected for the measurement. True stress was evaluated to reflect the shape changes during deformation, and demonstrated that the measurement accurately distinguished the effect of thermal treatment on the texture. Different heating time (i.e., 0, 10, 20, and 30 min) was applied for both sous-vide and conventional cooking. Thermal processing caused hardening of textures for both cotyledon and hypocotyl of soybean sprout. The conventional cooking method showed higher stress values than those of sous-vide cooking. Sprouts cooked by sous-vide released the moisture after thermal processing while sprout cooked by a conventional water bath method could hold the moisture content during thermal processing. The soybean sprouts treated by conventional cooking method showed a higher score in sensory evaluation.