• Title/Summary/Keyword: characteristics of texture

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Mechanical and Sensory Characteristics of Jeungpyun Prepared with Different Fermentation Time (발효시간에 따른 증편의 기계적 및 관능적 특성)

  • 윤숙자
    • Korean journal of food and cookery science
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    • v.19 no.4
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    • pp.423-428
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    • 2003
  • Jeungpyun was prepared with varying degrees of fermentation, and their effects on its quality characteristics were examined. In height and volume of jeungpyun, the samples treated with a first fermentation time of 240 minutes, and second and third fermentation times of 60 and 30 minutes, respectively (Sample E) had the best fermentation quality. A texture profile analysis, Hunter's color and sensory evaluation of these jeungpyun were carried out during the 4 days of storage. In the texture profile analysis, the hardness was observed to reduce in proportion to decreases in the fermentation time. The lightness value of Sample E showed one of the highest among the samples, but decreased as the storage time was prolonged. The results of the sensory evaluation showed that Jeungpyun of Sample E had higher swell, softness and moisture scores.

Quality Characteristics of Jeolpyeon by Different Ratios of Green Laver Powder (파래가루를 첨가한 절편의 품질특성)

  • Lee, Na Gyeom
    • The Journal of the Convergence on Culture Technology
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    • v.4 no.4
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    • pp.295-300
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    • 2018
  • This study was conducted to aerermine the sensory evaluation and the texture characteristics after making Jeolpyeon added to Laver powder(0~8%) in according to concentration which has nutritive value and medical effect of Jeolpyeon traditional dduk. As the result of the values of Hunter color system, the L-values of the laver powder Jeolpyeon significantly decreased, and the a-values also significantly increased(p<0.05). The b-values Jeolpyeon added with laver powder higher than the control group. As the amoung of laver powder added has increased, the b-values has dropped showing a green color. In case of texture analysis hardness, cohesiveness and gumminess of laver powder Jeolpyeon increased(p<0.05). Also, the results of the sensory evaluateion showed that the 4% laver powder Jeolpyeon had the highest scores.

A Study on the Texture of Injeolmi by Cooking Method (제조 방법에 따른 인절미의 Texture에 관한 연구)

  • Song, Mee-Ran;Cho, Shin-Ho;Lee, Hyo-Gee
    • Korean journal of food and cookery science
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    • v.6 no.2
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    • pp.27-36
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    • 1990
  • Injeolmi is a kind of rice cake made from glutionusrice grains by steaming and pounding much into dough. The way of making Injeolmis has an important effect on the characteristics of Injeolmis; whether the glutinous rice is Japonica or Japonica/Indica, and whether it is steamed in rice grain, or in rice powder. The characteristics of Injeolmi were investigated through sensory evaluation and Instron Universal testing machine. The results were as follows; 1. Injeolmi which was steamed in glutinous rice was more chewier than powder Injeolmi after 48 hours. 2. In the case of changing ${\beta}$-starch to ${\alpha}$-starch by reheating. Injeolmi with microwave oven, the result was same as above investigation in color, appearance, and chewiness. But in hardness grain Injeolmi became tenderer. 3. Instron measurement of texture indicated that there were significant differences in hardness. This result was the same as that by the sensory evaluation. 4. The preference for Injeolmi was increased when it was made of high moisture contented glutinous rice. japonica had more moisture than J/Indica.

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Development of Lemon Pyun by the addition of various gelling agents (겔화제의 종류에 따른 레몬과편의 개발)

  • 김은미;이효지
    • Korean journal of food and cookery science
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    • v.19 no.6
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    • pp.772-776
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    • 2003
  • This study was performed to determine the quality characteristics of lemon pyun with various kinds of getting agents: agar, gelatin, sweet Potato starch, corn starch and Potato starch. Lemon Pyun was made with lemon juice(21.4%), gelling agent(6.7%), water(53.3%), sugar(13.3%) and honey(5.3%). The quality characteristics of the sample were estimated in terms of pH, color difference, texture profile analysis and sensory evaluation. (Ed- as this is an abstract this introductional clause is unnecessary) The PH of lemon pyun showed no significant difference among the different gelling agents. Lightness was significantly(p<0.05) lowered in the agar and gelatin groups, a value was significantly(p<0.05) lowered in the sweet potato starch and potato starch groups, and b value was significantly(p<0.05) lowered in the sweet potato starch group. In texture profile analysis, chewiness, gumminess and hardness were significantly(p<0.05) increased in the sweet potato starch group. According to sensory evaluation, elasticity and hardness of the sweet potato starch and cornstarch groups were stronger(p<0.05) than of other gelling agent groups. Lemon pyun containing sweet potato starch was most preferable in terms of Vitamin C provision.

Analysis on Perceptual Relationship in the Slope Scene of Highway (고속도로변 사면경관의 인지적 관계분석)

  • 정성관;박정길
    • Journal of the Korean Institute of Landscape Architecture
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    • v.20 no.3
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    • pp.33-43
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    • 1992
  • The perceptual characteristic on the slope scenery around highway is very similar as the general perceptual characteristic in the landscape. This process determines by the relationship between the scenery observers and the characteristics of its place. It is very important to have a analysis on highway slope scenery in our particular culture in Korea since our country's highways are done by cutting mountains : therefore, we have a lot of slopes around highways. The physical characteristics on the highway scenery determines how we should build scenery around highway to a satisfactory level. The results drawn from this research work are as follow: 1) The satisfaction for slope scene had been affected by sex, native and experience of travel. I thought that the slope scene having peculiar form will offer the highest satisfaction. 2) Psychological factor, reflected satisfaction of slope scene, 몽 a grip of three factors as the factor of evaluation, texture, formation, and presumption formula is : Satisfaction=1.04(Evauluation factor)+0.83(Texture factor)+0.15(Formation factor)+4.28)R2=0.69). 3) Vine among the vegetation componeents of slope scene highly correlated with the evaluation factor and grass, shrub correlated with the texture factor. 4) Rock among the structual components of slope scene highly correlated with the formation factor, and stockade, lattice correlated with the evalution factor. 5) Gradient among the properties which determined slope form, highly correlated with the formation factor.

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Quality Characteristics of Injeulmi Made with Different Ratios of Mulberry Leaf Powder (뽕잎분말 첨가 비율에 따른 인절미의 품질특성)

  • Kang, Yang-Sun;Hong, Jin-Sook
    • Korean journal of food and cookery science
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    • v.25 no.3
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    • pp.275-282
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    • 2009
  • This study investigated the quality characteristics of Pongnip Injeulmi samples according to different mulberry leaf powder(MLP) contents. The moisture levels of the samples ranged from 47.43 to 49.16%, with the 0% MLP sample presenting the highest moisture level. The amounts of crude protein, crude fat, and crude ash in samples were in ranges of 3.82${\sim}$5.01%, 0.05${\sim}$0.2%, and 0.65${\sim}$1.62%, respectively, and the values increased with increasing MLP content. Color L and b values decreased, while the a-value increased, with increasing MLP content. The 0% sample showed the highest gelatinization temperature of 63.4$^{\circ}$C, and the viscosity decreased with increasing MLP content. Texture and hardness also decreased with increasing MLP content, however, over 3 days storage, they increased in all samples. Finally, in the sensory tests, the 6% MLP sample received the highest scores for color, flavor, sweetness, texture and overall acceptability.

The Quality Characteristics of Mandupi Added with Goami Powder (고아미 가루를 첨가한 만두피의 품질 특성)

  • Kim, Hyun-Ah;Lee, Kyung-Hee
    • Journal of the East Asian Society of Dietary Life
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    • v.23 no.1
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    • pp.98-106
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    • 2013
  • This study examined the quality characteristics of goami Mandupi. To determine the optimal amount of rice powder for baking and goami powder (100, 90:10, 80:20, 70:30, 60:40), the weight, volume, texture, moisture contents, color values and sensory evaluation were measured. The weight of Mandupi dough made with 100% wheat flour, was heavier, whereas the moisture content was highest in the dough made with 40% goami In addition L-values and b-values were highest with 40% goami, whereas the a-values were lowest in the dough made with 40% goami. The spinginess was highest in the dough made with 100% rice powder for baking. The gumminess and cohesiveness were highest with the dough containing goami. The cooked weight and volume of Mandupi were lightest when made dough containing goami. The Hardness and adhesiveness was highest in the dough containing 100% rice powder. In a sensory evaluation the appearance, flavor, taste, texture and overall preference were was the highest for goami.

The Effect of Addition of Mungbean Starch and Potato Starch on the Textural and Sensory Characteristics of Peach Pyun (녹두전분과 감자전분 복숭아편의 질감과 관능적 특성)

  • 조재욱
    • The Korean Journal of Food And Nutrition
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    • v.12 no.2
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    • pp.156-163
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    • 1999
  • This study was evaluate of chemical properties. textural charact6eristics and sensory properties prod-uced peach pyuns through the change of gelling agents such as mungbean starch potato starchy and pec-tin and of sugar density with 10%, 20%, and 30%. Sensory evaluation was that peach pyun added mun-gbean starch was more preferable in appearance and texture than peach pyun added potato starch. Peac-h pyun added 0% pectin was more preferable than peach pyun with 1% pectin. As a result of texture analysis the texture of peach pyun added mungbean starch was denser than that added potato starch. Adding 1% pectin to peach pyun increased mechanical properties such as hardness and chewiness. Mun-gbeaan starch pyun with pectin on lightness Potato starch pyun with pectin on redness and potato star-ch pyun with pectin on yellowness were significant(p<001). Lightness has a tendency to decrease with increasing sugar density. Adding 1% pectin has the effect to increase lightness redness and yellowness. The subject parameters that effect overall quality on sensory evaluation were found taste quality tex-ture quality hardness adhesiveness and taste by using regression analysis.

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A Study on the Texture Characteristics of Ssooksulgis Affected by Mugworts (쑥 첨가량에 따른 쑥설기의 텍스쳐에 관한 연구)

  • 심영자;백재은;전희정
    • Korean journal of food and cookery science
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    • v.7 no.1
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    • pp.35-43
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    • 1991
  • Ssooksulgis made with different levels of Mugworts were tested to investigate the texture characteristics by sensory evaluation and mechanical test in this study. As a result of the sensory evaluation for Ssooksulgis with the levels of 0%, 10%, 20%, 30% and 40% , the consistency, texture, moistness and flavor were increased according to the increase of the added Mugworts. In view of color and overall quality, 30% Ssooksulgis was preferable than those of other mixing levels. In the texturometer measurement for Ssooksulgis, hardness tend to decrease, while springiness and cohesiveness tend to increase according to the increase of the added Mugworts. As for Ssooksulgis, the consistency and moistness in sensory evaluation correlated significantly with the cohesiveness and correlated negatively with hardness, chewiness, gumminess in mechanical test (p<0.01).

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Texture and Storage Stability of Tofu Incorporated with Rhynchosia volubilis

  • Lee, Jun-Ho;Ahn, Mi-Jung
    • Preventive Nutrition and Food Science
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    • v.14 no.1
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    • pp.71-75
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    • 2009
  • The effects of Rhynchosia volubilis (yakong) incorporation (0%, 10%, 20%, and 30%, w/w of soybeans) on quality and shelf life of tofu were investigated. Moisture content of tofu increased slightly with the increase in the level of yakong incorporation from 10% to 30% and no apparent relationships between yakong incorporation and the yield were found. Turbidity of soybean whey tended to increase with increased level of yakong incorporation where the values of 20% and 30% samples were significantly different from those of control and 10% sample (p<0.05). The different levels of yakong incorporation were found to have significant influence (p<0.05) on all the color characteristics of tofu. Tofu texture varied with the level of yakong incorporation in consistent pattern; however, there was no significant difference (p>0.05) in most cases. Tofu incorporated with yakong ($10{\sim}30%$) had a shelf life of above at least 1 day longer than that of the control tofu.