• Title/Summary/Keyword: texture quality

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Quality Characteristics of Injulmi Prepared with Dry Glutinous Rice Flour According to the Punching Time (치는 시간을 달리한 건식 쌀가루 인절미의 품질특성)

  • Park, Young Mi;Yoon, Hye Hyun
    • Korean journal of food and cookery science
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    • v.32 no.2
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    • pp.168-177
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    • 2016
  • Purpose: The objective of this study was to investigate the quality characteristics of injulmi made with dry glutinous rice flour according to the punching time (1, 4, 7, 10 min) and the frozen storage period (0, 1, 7, 30 days) as compared with the control made by the traditional method. Methods: Moisture content, texture profile, and sensory evaluation were measured in triplicate and color was measured five times. Results: The moisture content was highest in the sample prepared with 7 min of punching time and the control. As the punching time for injulmi increased, moisture content tended to increase. The L-value increased with increased punching time and the L-value was highest in the samples with 5 min and 7 min of punching time whereas the L-value showed no constant trend with frozen storage. The texture profile analysis indicated that adhesiveness, and gumminess decreased significantly with increased punching time, and punching for 7 min resulted in the highest hardness. The results of an acceptance test, showed that the injulmi prepared with dry glutinous rice flour had higher scores for color, flavor, and taste, texture than the control made with the traditional method. The whiteness of injulmi prepared with dry glutinous rice flour increased with longer punching times and, the sample with 10 min punching time and 7 days of frozen storage had the highest score in the acceptance test. Conclusion: These results can be used as primary data for research on the texture of injulmi made with dry glutinous rice flour.

Bread Quality with Boiled Wax Gourd (Benincasa hispida) (열처리 동아(Benincasa hispida)를 첨가한 빵의 품질 특성)

  • Ju, In-Ok;Jung, Gi-Tai;Ryu, Jeong;Choi, Joung-Sik;Choi, Yeong-Geun;Kim, Young-Soo
    • Korean Journal of Food Science and Technology
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    • v.35 no.2
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    • pp.195-200
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    • 2003
  • Effects of mashed wax gourd (Benincasa hispida) on texture and sensory quality of bread were evaluated. Farinograph results revealed increase in mechanical tolerance index (MTI) and water absorption, and decrease in dough stability with the addition of wax gourd. Addition of wax gourd also decreased loaf weight and volume. L, a, and b values of crust decreased with increasing addition of wax gourd, Whereas no effect on the color of crumb, Firmness of bread crumb increased with the addition of wax gourd at 67%, resulting in significant increase in hardness, gumminess, and chewiness of bread. Sensory evaluation revealed that acceptable quality of bread could be obtained by the addition of wax gourd up to 50%.

Effects of Oatrim on the Quality of Meat Products (일부재료(Oatrim)대체가 육류제품의 품질에 미치는 영향)

  • Jeon, Yoo-Shin;Sohn, Kyung-Hee
    • Korean journal of food and cookery science
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    • v.10 no.3
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    • pp.254-259
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    • 1994
  • Meat provides high quality proteins, lipids, minerals and vitamins. The meat protein is especially high in essential amino acids that are crucial for human health, growth & development and for the formation of enzymes, hormones and antibodies. Relatively cheap and nutritionally sound vegetable proteins that are similar to animal proteins are being developed to replace the animal proteins in texture, nutrition and food characteristics. In this study a nutritionally sound meat lipid replacing food Oatrim that has been produced by converting oat starch into maltodextrin by ${\alpha}$-amylase, have been partially substituted for beef and general component analysis, texture measurement and sensory tests have been conducted. The results are 1. Water content of the non-treated (0% treated) was 67.1% and the treated (10% treated) was 77%. The treated showed better water holding capacity. 2. Protein content of the non-treated was 21.2 g/100 g; the 4% treated, 18.4 g/100 g; the 6% treated, 18.2 g/100 g; the 8% treated, 17.2 g/100g; and the 10% treated, 16.0 g/100 g. The protein content tended significant. 3. Amino acid analysis results showed that glutamic acid content was the highest in Oatrim and as its amino acid make up is exellent, it is valuable as a fine low fat protein food. 4. Sensory tests show that the increased Oatrim content increased the appearance quality but food characteristics were high only in the 4% and 6% treated groups, indicating that the replacement ratio should not exceed 10%. 5. Texture measurement analysis results show that the higher the replacement content, lower the springness, cohesiveness, hardness, chewiness and gumminess, resulting in relatively soft overall texture. However, in order to better the food characteristics, more studies must be continuously done, and so by being able to increase vegetable substitution over meat, it may be able to contribute to the prevention of adult disease.

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Very Low Bit Rate Video Image Coder Using the Fractals

  • Kim, Yong-Hon;Jang, Jong-Whan;Jeong, Jae-Gil;Park, Doo-Yeong
    • The Journal of the Acoustical Society of Korea
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    • v.15 no.2E
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    • pp.85-91
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    • 1996
  • New very low bit rate segmentation video image coding technique is proposed by segmenting image into textually homogeneous regions. Regions are classified into one of three perceptually distinct texture classes(perceived constant intensity, smooth texture, and rough texture) using the Human Visual System(HVS) and the fractals. To design very low bit rate video image coder, it is very important to determine the best block size for estimation the fractal dimension and the thresholding of the fractal dimension for each texture class. Good quality reconstructed images are obtained with about 0.10 to 0.21 bit per pixel(bpp) for many different types of imagery.

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Optimization of Boiling Process and Texture Change in Heating (밤 가공품 자숙 공정 중 물성의 변화 및 최적화)

  • 김영찬;이주백
    • Food Science and Preservation
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    • v.4 no.3
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    • pp.337-341
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    • 1997
  • Texture is an important quality factor of processed chestnut products, which changes depending on the conditions of boiling process. The conventional boiling process consists of three stage(1st : 70 minutes at 60$^{\circ}C$; 2nd : 20minutes at 70$^{\circ}C$; 3rd : 80minutes at 98$^{\circ}C$). To improve the conventional boiling process of processed chestnut products, we investigated the changes of texture at different stages of boiling process and undertook the optimization of boiling process by response surface method on heating times of 2nd and 3rd heating, and amount of softening agent. The initial hardness and cohesiveness, the most important textural characteristics of chestnut, were 7.876kg and 0.189, respectively. In the third boiling stage, hardness decreased to 0.313kg and cohesiveness increased to 0.310. Using response surface method the minimum point of hardness and maximum point of cohesiveness was examined and model equations for predicting the changes of hardness and cohesiveness in the optional boiling condition were developed.

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Quality Changes of Meat Patties by the Addition of Sea Mustard Paste (미역 페이스트 첨가에 의한 고기 패티의 품질변화)

  • 황재관;홍석인;김종태;최문정;김윤지
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.3
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    • pp.477-481
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    • 1998
  • Sea mustard paste was prepared by treating wet and dried sea mustard with 0.1M Na2CO3, which mainly aimed to extract alginate from the cell wall of sea mustard. The pastes were added to beef, chicken and pork to manufacture the meat patties. The effects of adding the paste were investigated in terms of sensory properties, texture(hardness)and weight changes after cooking. The sensory attributes such as taste, color, texture and juiciness were generally enhanced by adding the paste. The hardness of cooked patties was significantly decreased, so the paste provided softer texture. The addition of paste also resulted in decreasing the weight loss of meat patties after cooking.

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Graphical Video Representation for Scalability

  • Jinzenji, Kumi;Kasahara, Hisashi
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 1996.06b
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    • pp.29-34
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    • 1996
  • This paper proposes a new concept in video called Graphical Video. Graphical Video is a content-based and scalable video representation. A video consists of several elements such as moving images, still images, graphics, characters and charts. All of these elements can be represented graphically except moving images. It is desirable to transform these moving images graphical elements so that they can be treated in the same way as other graphical elements. To achieve this, we propose a new graphical representation of moving images using spatio-temporal clusters, which consist of texture and contours. The texture is described by three-dimensional fractal coefficients, while the contours are described by polygons. We propose a method that gives domain pool location and size as a means to describe cluster texture within or near a region of clusters. Results of an experiment on texture quality confirm that the method provides sufficiently high SNR as compared to that in the original three-dimensional fractal approximation.

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Consumption Pattern of Ramyon by High School Students - Kangwondo Area - (고등학생의 라면소비 실태조사 - 강원도 지역을 중심으로 -)

  • Hyun, Young-Hee;Kim, Myung-Hee;Jang, Myung-Sook
    • Korean journal of food and cookery science
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    • v.6 no.1
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    • pp.61-66
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    • 1990
  • Consumption pattern of Ramyon by high school students at age of 16~20 years in Kangwondo area was surveyed by questionaire. About 74% among 754 students consumed Ramyon more than once per week. Most consumers eat Ramyon because of convenience for meal substitution. They consumed Ramyon at between meals and lunch at home. The advertisement had a strong effect on the selection of Ramyon. Consumers considered that taste of soup and texture of noodle are both important quality factor of Ramyon. In terms of the texture of cooked noodle, the most desirable was chewy and hard texture. The most undesirable was swollen and mushy texture. The most desirable and undesirable taste of soup were spicy and greasy taste, respectively. At present, no significant differences in consumption pattern between sex were observed in most cases.

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Effect of Mustard Leaf on Quality and Sensory Characteristics of Kimchi (갓의 김치가 김치의 품질과 관능적 특성에 미치는 영향)

  • 박혜진;한영실
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.4
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    • pp.618-624
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    • 1994
  • The addition of mustard leaf to kimchi making for extanding the optimum edible period was studied. The quality and sensory characteristics of mustard leaf added kimchi were evaluated . The activity, lactic and acetic acid contents of mustard leaf added kimchi showed lower than that of control kimchi but reducing sugar and vitamin C contents was higher. The duration of optimum edible periods of mustard leaf added kimchi lasted one more weak. While the optimum pH of kimchi for eating lasted, the sensory pannel score for sour taste of mustard leaf added kimchi was lower than that of control but the scoreas for savory taste, carbonated taste and hardness were higher . Especially , the sour taste score between two groups were significantly different (p<0.05). Overall quality score for the mustard leaf added kimchi was higher. There was no differences in texture determined by Penetrometer between mustard leaf added kimchi and control kimchi until the fermentation reached the optimal condition for eating . After that period , the degree of degradation of texture was much delayed in mustard leaf added kimchi.

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Studies on the Quality Characteristics of Functional Muffin Prepared with Different Levels of Grape Seed Extract (포도씨추출분말을 첨가한 기능성 머핀의 품질 특성에 관한 연구)

  • Joo, Sin-Yoon;Choi, Min-Hee;Chung, Hai-Jung
    • Journal of the Korean Society of Food Culture
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    • v.19 no.3
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    • pp.267-272
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    • 2004
  • This study was conducted to develop functional muffin in which grape seed extract(GSE) was added at 0, 0.5, 1 or 2% levels and to evaluate the quality characteristics. The volume of muffin decreased with the increasing GSE content, but no significant differences were observed. The weight and height of muffins increased with the increasing GSE content. The incorporation of GSE in the product lowered lightness (L value) and increased redness(a value). The mechanical texture parameters including hardness, springiness, gumminess and brittleness increased with the increasing GSE levels. Sensory analysis showed that muffin prepared with 0.5% GSE was considered to be as acceptable as control, based on hedonic scale ratings given by untrained taste panel.