• Title/Summary/Keyword: Adhesiveness

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Physicochemical Properties of Cooked Rice as Affected by Cooking Methods and Thawing Conditions (취반 및 해동방법에 따른 쌀밥의 이화학적 특성)

  • Ha, Joo-Young;Lee, Jong-Mee
    • Journal of the Korean Society of Food Culture
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    • v.20 no.2
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    • pp.253-260
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    • 2005
  • This study was conducted to investigate performance of methods for cooking and thawing frozen cooked rice to retard retro-gradation of cooked rice. For this research, That was executed rice's physicochemical and sensory characteristics test through the way of boiling rice or thawing, and found out best way for retro-gradation and taste. This study showed the rice cooked by pressure rice pot has less dehydration during freezing and thawing, and thawed rice by micro wave has less dehydration. Repetition of freezing and thawing resulted increasing of hardness and chewiness, and decreasing of adhesiveness and cohesiveness. The rice cooked by convotherm oven or pressure rice pot has less increased hardness while freezing and thawing. Adhesiveness was superior when rice was cooked by pressure rice pot. The rice thawed by microwave had more hardness than thawed in room temperature.

A Study on Flour Cooking - Dependence of Choux Puff Swelling on Butter Contents - (소맥분조리에 관한 연구 - Butter 분량에 따른 Choux Puffs 형성에 대하여 -)

  • 이정숙
    • Journal of the Korean Home Economics Association
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    • v.20 no.1
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    • pp.47-55
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    • 1982
  • 1. Pasts containing 10, 12.5, 15, 17.5 and 20g of butter respectively with identical contents of flor(16.25g) and egg(50g) were prepared. 2. For the five batter samples described above, following tests were conducted. a) Hardness and adhesiveness determination by texturometry b) Light microscopic observation d) Sensory Test 3. Significant differences of hardness, adhesiveness, and viscosity among the five samples were not recognized; but 1% significant difference in volumns were recognized. The best swelling was observed for the 17.5g butter sample; those of 15g and 12.5g butter samples were identical, while those of 10g and 20g showed the lowest swelling. Generally, stirring at 60~7$0^{\circ}C$ gave the best homogenity The degree of emulsification influenced the swelling. Not only large but also small amount of butter gave undestirable swelling. Sensory test for the 15g butter sample also gave best result.

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Quality Characteristics of the Chol-Pyon Added Tapioca Powder (타피오카 전분을 첨가한 절편의 품질 특성)

  • Ahn, Gee-Jung
    • Culinary science and hospitality research
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    • v.11 no.3 s.26
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    • pp.179-189
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    • 2005
  • The purpose of this study was to investigigate the effects of different tapioca powder on the quality of Chol-Pyon. As the result of the sensory evaluation, 5% addition groups showed good preference in chewness, moistness, softness, adhesiveness, after flavor. 10% addition groups showed good preference moistness, softness, after flavor. In texture profile, gumminess, cohesiveness, adhesiveness of Chol-Pyon was not different significantly among all the groups. All groups was getting higher by addition level. Softness was 5%, 20% addition groups had the higher. Tapioca Chol-Pyon seemed to increase hardness slightly. 5% addition group had the highest values in chewness. The desireable water content in 5%, 10% Tapioca Chol-Pyon was not different significantly among all the groups(p<0.05). 15%, 20% addition group was significantly different from all the groups. Hunter's rotor values higher redness and yellowness was 20% tapioca powder addition group more than the other groups but lightness were lowest value. Above results indicated that 5% tapioca powder addition level to give the best quality.

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Enhancement of Polymer Surface Adhesion by Laser Beam Irradiation for Microfluidic Chip Application: Formation of a Channel on a Modified Surface

  • Shin, Sung-Kwon;Lee, Cheon
    • Transactions on Electrical and Electronic Materials
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    • v.8 no.6
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    • pp.289-292
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    • 2007
  • Polymethly methacrylate(PMMA) and polydimethlysiloxane(PDMS) surfaces were treated to improve adhesiveness by irradiation of a Nd:YAG pulse laser beam($\lambda=266nm$). A pulse laser beam was directed on a polymer surface in air, and the number of pulses was controlled by mobile velocity of a motorized stage. The laser treated surfaces were investigated using an optical microscope and a contact angle measuring instrument. It was thereby revealed that the contact angles were decreased in the laser treated surface. This in turn led to an increase of oxygen content and improved adhesiveness on the modified surface. With improved surface adhesion, a fluid channel could be formed on the laser treated surface region.

The Effect of Added Water Volume on the Textural Properties of Injulmi made from Waxy Rice Flours using Different Milling Methods (제분방법을 달리한 찹쌀가루로 만든 인절미의 텍스처 특성에 물 첨가량이 미치는 효과)

  • 김정옥;신말식
    • Korean Journal of Human Ecology
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    • v.5 no.2
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    • pp.33-43
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    • 2002
  • This study was investigated textural properties of Injulmi affected by milling methods, varieties and added water volume. Sinsunchalbyeo and Hwasunchalbyeo flours were made using Rin-dry milling(PDM) and roll-wet milling(RWM) methods. The proximate composition of waxy rice starches and waxy rice flours were similar. Water binding capacity, soluble carbohydrate and damaged starch of waxy rice flour by RWM: were higher than those of waxy rice flours by PDM. By increasing added water volume, hardness and adhesiveness of Injulmi were decreased. By increasing storage time, hardness of Injulmi was increased, but adhesiveness was decreased. The hardness of Injulmi made from waxy rice flours by PDM was higher than by RDW.

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Effects of Autoclaving-Cooling Cycled Waxy Rice Starch on the Texture of Injulmi (가열-냉각 처리한 찹쌀전분을 첨가한 인절미의 텍스처 특성)

  • 김정옥;신말식
    • Korean Journal of Human Ecology
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    • v.5 no.2
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    • pp.23-31
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    • 2002
  • Effects of autoclaving-cooling cycled waxy rice(Hwasunchalbyeo) starch(ACW) on textural and sensory properties of Injulmi were investigated. The protein, ash and lipid contents of waxy rice flour were higher than those of waxy rice starch and ACW. The RS level of ACW was 8.21%. By increasing ACW content added to Injulmi, hardness and adhesiveness of Injulmi decreased, Hunter color L and a values increased and b values decreased. The sensory test showed that the hardness of Injulmi decreased, but springiness and adhesiveness increased by increasing ACW content to Injulmi. Overall Qualities of injulmi added with ACW up to 20% were similar to the non-added Injulmi.

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The Physical Characteristies and Sensoy Qualities of Samul Chol-pyon (사물절편의 물리적.관능적 특성)

  • 김윤선;임영희;윤숙자
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.4
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    • pp.845-849
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    • 1999
  • We can make Samul Chol Pyon to add four powdered Korean medicines to Chol Pyon. The purpose of this study is to present the standard recipe of Samul Chol-Pyon for the taste of the moderns, taking the tests of physical charcateristics, sensory qualities. The white Chol Pyon and the group of 5% raw materials for Samul tang are comparatively good for color, odor, taste, softness, chewiness and overall quallity with other group of raw materials. To add Korean medicine browns the Samul Chol Pyon much deeper. The changes in textural properties of Chol pyon during storage at 20$\pm$5oC were measured using a rheometer for hardness, fractureability, adhesiveness, resilience, and cohesiveness. The hardness, fractureability and adhesiveness were increased with the additon of in Samul tang raw material powder. The cohesiveness and chewiness were increased by adding Samul tang powder in the course of time. The Chol Pyon prepared with 5% of Samul tang powder showed the superior sensory qualities as Samul Chol Pyon.

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Research on Physical Changes Based on Drying After Downpour Penetration of Floor Finishing Use Granite Stone (호우로 인한 바닥 마감용 화강석 침수 후 건조상태에 따른 물성변화에 관한 연구)

  • An, Ki-Won;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.173-174
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    • 2015
  • This research takes granite stone based floor finishing exposed to concentrated downpouring and observes the material's physical changes, adhesiveness, compressive strength under wet conditions. The results of the experiments shows that elution of sulfide mineral can occur when granite stones are exposed to downpour, but short term exposure shows little physical changes to the material. This indicates that if post maintenance is properly enacted, long term usage of granite stone materials is also possible.

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Quality Properties of Jeolpyun supplemented with Cheonnyuncho (Opuntia humifusa) (천년초 열매 분말을 첨가한 절편의 품질특성)

  • Kim, Myung-Hee;Hong, Geum-Ju
    • Korean journal of food and cookery science
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    • v.25 no.4
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    • pp.415-420
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    • 2009
  • This study was undertaken to investigate the effect of Opuntia humifusa on the improvement of quality properties of Korean Jeolpyun. Chemical and mechanical properties of unsupplemented Jeolpyun and Jeolpyun supplemented with 1%-4% O. humifusa. Also, a sensory evaluation by a trained panel was conducted. Concerning color difference, the L value decreased, but a and b values increased as O. humifusa content increased. Texture analysis revealed that hardness, cohesiveness and adhesiveness were the highest in the unsupplemented control group. The texture parameters decreased as the O. humifusa addition ratio increased. In sensory evaluation, color and taste scores were highest score in 2% O. humifusa supplemented samples, with no difference in flavor being evident. Chewiness and adhesiveness scores were highest score in 4%-supplemented O. humifusa samples. Overall quality score was highest in the 2% O. humifusa samples. The addition of $2{\sim}3%$ O. humifusa optimizes Korean Jeolpyun.

Scientific Study for the Starndardization of the Preparation Methods for Kyongdan (III) -for the focus on the volume of water and temperature of adding water- (경단 조리법의 표준화를 위한 조리과학적 연구(III) -첨가하는 물의 양과 물의 온도를 중심으로-)

  • 김기숙;한경선
    • Korean journal of food and cookery science
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    • v.8 no.4
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    • pp.405-410
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    • 1992
  • This study attempted to examine the effects on sensory characteristics and texture of Kyongdan in various volume of adding water and temperature of adding water. Evaluation was conducted through sensory evalation and objective evaluation. The results were summarised as follows. 1. In sensory evaluation on various volume of water and temperature of adding water, the most favorite tendency on the quality was at the 25% adding water and hot water ($80^{\circ}C$). 2. This condition corresponded to the low level of hardness, adhesiveness and the high level of springiness and cohesiveness, chewiness in comparison with Instron measurement.

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