• Title/Summary/Keyword: texture quality

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Quality Characteristics of Baked Rice Cake using Dry and Wet Rice Powder (습식과 건식 쌀가루 종류를 달리하여 구운 떡의 품질 특성)

  • Park, Young Mi;Jung, Hyo Sun;Yoon, Hye Hyun
    • Culinary science and hospitality research
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    • v.23 no.7
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    • pp.129-139
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    • 2017
  • This study investigated the quality characteristics of baked rice cake using dry and wet rice flour. The moisture contents, color values, texture and sensory evaluation(attribute difference and acceptance) for the samples were tested. The moisture content of baked rice cake was the highest in rice cake baked with non- glutinous rice of dry type, and rice cake baked in dry type had weaker brownishness and therefore had higher brightness value compared to the rice cake baked in wet type. In relation to the texture, the hardness was found to be the highest in the rice cake baked with wet non- glutinous rice, and the rice cake baked with glutinous rice was found to be soft. The hardness was the lowest in both wet and dry glutinous rice, and was the highest in the wet non- glutinous rice. Attribute difference test of samples showed that, the rice cake baked with glutinous rice showed clear manifestation of springiness, moistness, adhesiveness, and gumminess (except for the harness). Although the cake baked with dry rice powder showed no significant difference, the dry glutinous rice flour was preferred the most. The rice cake baked with wet glutinous rice flour was preferred the most in terms of flavor, taste, texture, and overall acceptability.

Quality Characteristics of Fresh Pasta Containing Various Amounts of Superjami (슈퍼자미를 첨가한 생면 파스타의 품질특성)

  • Noh, Jea-Seung;Park, Ki-Hong
    • Culinary science and hospitality research
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    • v.19 no.5
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    • pp.184-195
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    • 2013
  • The purpose of this study is to develop fresh pasta added with superjami, which had a high C3G (cyanidin-3-glucoside). Making fresh pasta with wheat flour and superjami(0, 10, 20, 30, 40%) was done, followed by the mechanical test(moisture content, color value, weight, volume, texture, tension) and the sensory analysis(attribute difference test, preference test). Results are as follows. Moisture content of fresh pasta and cooked pasta was the highest in SP40, and the scores of cooked pasta was much higher than those of fresh pasta. L, a and b value decreased as the ratio of superjami powder. Hardness, chewiness and tension force decreased, while weight, volume, adhesiveness and tension distance increased as the ratio of superjami powder. Attribute difference test showed that color intensity, superjami flavor, savory flavor, superjami taste, savory taste, graininess and after swallow were intense as superjami powder was added. The preference test showed that SP20 containing 20% of superjami powder was the most preferable in flavor, taste, texture and overall quality. Therefore, this was taken as the optimal superjami powder contents for maximizing the overall quality of fresh pasta.

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Study on quality characteristics of fish paste containing Curcuma aromatica powder (강황 분말을 첨가한 어묵의 품질 특성 연구)

  • Park, Bock-Hee;Jung, Yu-Jin;Cho, Hee-Sook
    • Food Science and Preservation
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    • v.22 no.1
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    • pp.78-83
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    • 2015
  • This study was conducted to promote the utilization of fish paste with 0, 2, 3, and 4% added Curcuma aromatica powder. The moisture, crude protein, crude lipid, and crude ash contents of the used Curcuma aromatica powder were 11.15, 6.25, 2.36, and 9.98%, respectively. For the Hunter color values, the L, a values of the fish paste decreased with increasing concentrations of Curcuma aromatica powder, while the b values appreciated. In the folding test, whose results reveal the flexibility of the fish paste, all the test samples showed AA results. In the texture meter test, the hardness, cohesiveness, and springiness increased with increasing concentrations of Curcuma aromatica powder, but the gumminess and brittleness of the fish paste were reduced. In the sensory evaluation, the color and taste of the fish paste with 3% added Curcuma aromatica powder were preferred over those of the other fish pastes. These results suggest that Curcuma aromatica powder can be applied to fish paste to achieve high quality and functionality.

Quality Characteristics of Omija Jelly Prepared with Various Starches by the Addition of Oil and Chitosan (유지 및 키토산 첨가가 여러 가지 전분으로 제조한 오미자 젤리의 품질 특성에 미치는 영향)

  • Lyu, Hyun-Ju;Oh Myung Suk
    • Korean journal of food and cookery science
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    • v.21 no.6 s.90
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    • pp.877-887
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    • 2005
  • This study determined the effects of soybean oil$2\%$) and chitosan($1\%$) on the quality characteristics of Omija Jelly made of various starches (mungbean starch, cowpea starch and corn starch). RVA(Rapid Visco Analyzer) viscosity was measured for starches suspended in Omija aextract with $2\%$ soybean oil and $1\%$ chitosan. The color value, syneresis, texture(rupture test and TPA test) and sensory properties of the samples were measured. Gelatinization of cowpea starch was expedited by adding soybean oil and chitosan. Otherwise, gelatinization of mungbean starch and com starch was retarded by adding chitosan. The lightness(L) and the syneresis of Omija Jelly with soybean oil and chitosan were decreased, indicating the increased transparency and stability of Omija Jelly. Rupture stress and rupture energy of Omija Jelly were decreased by adding soybean oil. Rupture stress was increased and rupture energy was decreased by adding chitosan. The addition of soybean oil improved texture of Omija Jelly, indicating that the springiness, cohesiveness and chewiness of Omija Jelly were increased and adhesiveness was decreased. By adding chitosan, the springiness and hardness of Omija Jelly were increased and the cohesiveness and adhesiveness were decreased. The overall acceptability of Omija Jelly made of $6%$ or $7\%$ cowpea starch and com starch was increased by adding soybean oil and chitosan, but the quality characteristics of Omija Jelly made of mungbean starch were not influenced by additives such as soybean oil and chitosan.

Rheological Properties of Dough and Quality Characteristics of Bread Added with Pumpkin Powder (단호박 분말을 첨가한 반죽의 물성 및 빵의 품질특성)

  • Bae, Jong-Ho;Woo, Hi-Seob;Jung, In-Chang
    • Journal of the Korean Society of Food Culture
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    • v.21 no.3
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    • pp.311-318
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    • 2006
  • This study aims to investigate the quality characteristics of breads with the addition of sweet pumpkin powder. Farinogram showed that the absorption rate of the dough decreased, the development time and stability became shortened, and the degree of attenuation tended to be grown along with increasing the amount of pumpkin powder. From the amylogram, it was found that the gelatinization starting temperature and the maximum viscosity of pumpkin powder added dough seemed to be decreased as the amount of pumpkin powder was increased. Extensogram showed that there was a decrease in the degree of extension of the dough added with increasing the amount of pumpkin powder, while an increase in the degree of resistance and resistance/extensibility. The lightness (L value) and redness (a value) of bread was found to be decreased with increasing the amount of pumpkin powder, while the yellowness (b value) increased. In terms of the dough texture, for which the hardness, cohesiveness and gumminess of the dough were measured, there were no significant differences between groups, while the dough added with 8.0% pumpkin powder showed a significant decrease in the elasticity. The results of sensory evaluation showed that the highest score of color (p<0.05) and taste (p<0.05) were obtained from the bread added with 6.0% and 8.0% pumpkin powder, while the highest score of texture in control and 3.0% pumpkin bread. In addition, the highest score of flavor (p<0.05) and overall acceptance (p<0.05) were observed in bread added with 6.0% pumpkin powder. Upon the results of this study, it was assumed that the development of food products using pumpkin are prospective in response to health-oriented consumers.

Effects of Wheat Fiber, Oat Fiber, and Inulin on Sensory and Physico-chemical Properties of Chinese-style Sausages

  • Huang, S.C.;Tsai, Y.F.;Chen, C.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.6
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    • pp.875-880
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    • 2011
  • This study introduces the addition of wheat fiber, oat fiber, and inulin to Chinese-style sausages, in amounts of 3.5% and 7%, respectively. Researchers used analysis of general composition and texture properties, and sensory evaluation to assess the influence of these three types of dietary fiber on the quality and palatability of Chinese-style sausages. Results showed that the type and amount of dietary fiber introduced did not significantly influence the general composition, color, and total plate count of sausages. However, the addition of wheat fiber and oat fiber significantly hardened the texture of Chinese-style sausages (p<0.05). A greater amount of dietary fiber added implied a harder texture. Added inulin did not influence the texture of Chinese-style sausages (p>0.05). Results of product assessment showed that, aside from sausages with 7% wheat fiber scoring less than 6 points (on a 9-point scale) in terms of overall acceptability, the other groups of Chinese-style sausages scored over 6 points. Judges preferred the sausage groups with 3.5% added oat and wheat fiber. This study demonstrates that adding fiber to Chinese-style sausages to increase the amount of dietary fiber is feasible.

Textural Improvement of Sweet Potato Starch Noodles Prepared without Freezing Using Gums and Other Starches

  • Lee, Seung-Young;Kim, Jong-Yea;Lee, Su-Jin;Lim, Seung-Taik
    • Food Science and Biotechnology
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    • v.15 no.6
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    • pp.986-989
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    • 2006
  • Sweet potato starch noodles prepared without freezing exhibited higher cooking loss and water uptake during cooking and usually resulted in noodles with a softer and stickier texture compared to commercial sweet potato starch noodles manufactured using a freezing process. By utilizing the starches of different plant sources (potato, cowpea, and sago in an equivalent mixture with sweet potato starch), however, the cooking properties and texture of the starch noodles could be improved. Among the starches tested, cowpea starch was most effective in providing cooking and textural properties similar to those of commercial noodles. As an alternative approach, the addition of a minor amount (0.1 % based on total solid weight) of various gums (xanthan, gellan, locust bean gum, curdlan, and carboxymethyl cellulose) was also examined. The addition of curdlan to noodles was effective in increasing the gumminess and hardness, and reducing the stickiness of noodles. Utilizing different starches and gums can improve the overall texture and quality of sweet potato starch noodles produced without freezing.

Evaluation of the Quality Characteristic of Herb Sauce for the Roasted Mackerel (고등어 구이를 위한 허브 소스의 품질 평가에 대한 연구)

  • Lee, Young-Sook;Rho, Jeong-Ok
    • The Korean Journal of Food And Nutrition
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    • v.20 no.4
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    • pp.369-377
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    • 2007
  • An investigation evaluating the preparation and physicochemical properties of sauce with various herbs(sancho, sage, and rosemary) derived from soy sauce was performed. The effects of the different kinds of herbs added to sauce for roasted mackerel were assessed using physiochemical, sensory, flavor, and texture analysis properties. This fish was then compared to, fish with salt. The moisture, crude protein, crude fat, and crude ash content of the roasted mackerel were significantly higher than the control(p<0.05, p<0.001). The salinity content of the herb sauce added samples were significantly higher than the control(p<0.05). Conversely, the pH and peroxide value of the herb sauce added samples were significantly lower than the control(p<0.001). A positive trend was observed for color value with sancho added sauce(p<0.001). The another positive effects on the texture of fish was observed for texture analysis, adhesiveness, springiness, gumminess, and chewiness with herb sauce added samples(p<0.05). In the flavor profile, the fishy smell was disappeared and antifungal flavor was improved with herb added sauce. Flavor, taste, texture, and overall preference of herb sauce were significantly highest in sancho added sauce(p<0.05, p<0.001). Results suggest that the best herb sauce for roasted mackerel was sancho added sauce.

Developing Sensory Lexicons for Tofu

  • Chung, Jin-A;Lee, Hye-Seong;Chung, Seo-Jin
    • Food Quality and Culture
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    • v.2 no.1
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    • pp.27-31
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    • 2008
  • The objective of this study was to develop sensory lexicons that can be utilized for various types of tofu such as pressed, unpressed, and tofu made from germinated soybeans, using generic descriptive analysis. In the first phase of the experiment, trained descriptive panelists developed and defined the appearance, aroma, flavor, and texture attributes that are commonly present in tofu. Then, the sensory characteristics of seven types of tofu were analyzed using the sensory lexicons established in the initial stage of the experiment. Four appearance, 6 odor/aroma, 6 flavor/taste, 7 texture, and 4 aftertaste attributes were identified, and reference standards were established for most of the terms in order to facilitate the understanding of the attribute definitions. The intensities of the sensory attributes were measured on a 15-point scale. Statistical analyses, including analysis of variance and principal component analysis, were used for the data. The seven tofu samples showed significant differences in the intensities of 22 attributes. The unpressed tofu samples were generally rated as being high in moistness, easy to cut, silky, and easy to swallow. The pressed tofu, on the other hand, was salty, astringent, beany, hard, and rough in texture. The tofu made with germinated soybeans was characterized as having a strong cooked bean flavor, salty and astringent aftertaste, and hard texture. Overall, the attributes of moistness, easy to swallow, and silkiness showed strong positive correlations; hardness and sticks to teeth were also positively correlated to each other.

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Inter-layer Texture and Syntax Prediction for Scalable Video Coding

  • Lim, Woong;Choi, Hyomin;Nam, Junghak;Sim, Donggyu
    • IEIE Transactions on Smart Processing and Computing
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    • v.4 no.6
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    • pp.422-433
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    • 2015
  • In this paper, we demonstrate inter-layer prediction tools for scalable video coders. The proposed scalable coder is designed to support not only spatial, quality and temporal scalabilities, but also view scalability. In addition, we propose quad-tree inter-layer prediction tools to improve coding efficiency at enhancement layers. The proposed inter-layer prediction tools generate texture prediction signal with exploiting texture, syntaxes, and residual information from a reference layer. Furthermore, the tools can be used with inter and intra prediction blocks within a large coding unit. The proposed framework guarantees the rate distortion performance for a base layer because it does not have any compulsion such as constraint intra prediction. According to experiments, the framework supports the spatial scalable functionality with about 18.6%, 18.5% and 25.2% overhead bits against to the single layer coding. The proposed inter-layer prediction tool in multi-loop decoding design framework enables to achieve coding gains of 14.0%, 5.1%, and 12.1% in BD-Bitrate at the enhancement layer, compared to a single layer HEVC for all-intra, low-delay, and random access cases, respectively. For the single-loop decoding design, the proposed quad-tree inter-layer prediction can achieve 14.0%, 3.7%, and 9.8% bit saving.