• Title/Summary/Keyword: Texture characteristics

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Quality Characteristics of Noodle added with Pachyrhizus erosus Powder (히카마 분말을 첨가한 제면의 품질 특성)

  • Lee, Sun-Ho
    • Culinary science and hospitality research
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    • v.23 no.5
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    • pp.101-108
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    • 2017
  • This study was conducted to investigate the noodle added with Pachyrhizus erosus powder. Total contents of carbohydrates, crude protein, crude lipid, ash, and total dietary fiber were 87.14%, 3.14%, 0.81%, 7.82%, and 49.12%, respectively. The water-binding capacity was significantly increased by increasing amount of the Pachyrhizus erosus powder. When the volume of the noodles was measured after cooking, there was no difference between the control and Pachyrhizus erosus powder groups. The texture characteristics of hardness increased by increasing amount of the Pachyrhizus erosus powder. As a result of the sensory test, the 1.5% Pachyrhizus erosus powder noodles showed the highest scores for all items including appearance, flavor, taste, texture and overall acceptability. The bacterial counts of noodle decreased with greater Pachyrhizus erosus powder content on the third days. It is considered that research on antimicrobial activity should proceed in the future. As a result, it was finally suggested that optimum level of the Pachyrhizus erosus powder in the product was 1.5% level.

Quality Characteristics of Allium victorialis Mul-kimchi during Fermentation (저장기간에 따른 산마늘 물김치의 품질특성)

  • Park, Geum-Soon;Kim, Gui-Sun
    • Korean journal of food and cookery science
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    • v.24 no.6
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    • pp.829-836
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    • 2008
  • This study was carried out to investigate the properties of mul-kimchi made with allium victorialis. Chemical and sensory characteristics were determined during fermentation at $4^{\circ}C$ for 4 weeks. The pH decreased with an increase in total acidity. Mul-kinchi showed salinity properties ranging within $1.0{\sim}1.5%$ during fermentation. Hunter's color L, a-values were gradually decreased, but b-value was increased. In the texture, hardness and strength decreased as the aging time increased. The numbers of total- and lactic bacteria cells rapidly increased up to the second week, and this slowly increased thereafter. Sensory evaluation of mul-kinchi was favored for appearance, flavor, taste, texture and overall acceptability during the second week. Sensory properties of well ripened odor and sour taste negatively correlated with physicochemical properties of pH and hardness. Sour odor and sour taste were positively correlated with acidity and total- and lactic acid bacteria.

Quality Characteristics of Sulgidduk Added with Black Ginseng Extracts (흑삼 추출물을 첨가한 설기떡의 품질특성)

  • Kim, Ae-Jung;Shin, Seung-Mee;Jung, Jung-Suk
    • The Korean Journal of Food And Nutrition
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    • v.23 no.3
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    • pp.386-391
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    • 2010
  • Sulgidduk samples containing control, 0.5, 1, 1.5 and 2% black ginseng extracts and a control were examined for moisture content, color, textural characteristics, and sensory qualities to determine the optimal ratio of black ginseng extracts in the formulation. The moisture content of sulgidduk added with black ginseng extracts was 37~40%. Additionally, the lightness decreased and the redness and the yellowness increased as the black ginseng extracts content increased. Hardness, springiness, gumminess and chewiness increase with the addition of black ginseng extracts. however, adhesiveness did not differ significantly among the groups. Sulgidduk containing 1% black ginseng extracts received the highest scores for color, flavor, texture and overall preference. Based on the above results of sensory and texture analyses, sulgidduk containing 1% black ginseng extracts had the highest quality for commercialization.

Effects of Mulberry Leaf on the Quality of Jeung-Pyun(Korean Fermented Rice Cake) (뽕잎가루 첨가량에 따른 증편의 품질에 관한 연구)

  • 남태희;김애정;우경자
    • Journal of the East Asian Society of Dietary Life
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    • v.14 no.4
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    • pp.379-386
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    • 2004
  • Jeung-Pyun is a traditional Korean fermented rice cake leavened by yeast. To develop a functional Jeung-Pyun, mulberry leaf(ML) were added to the rice at the levels of 0, 2, 4, 6, 8%, respectively. Physicochemical, sensory, texture and surface characteristics of Jeung-Pyun were examined. The specific volumes of all the Jeung-Pyun's with ML were significantly lower than that of control(0% ML) and 4% ML sample showed the highest volume among them. The pH of ML Jeung-Pyun batters decreased with fermentation time. Overall quality of Jeung-Pyun with ML obtained lower value than the control. Among the texture properties measured with rheometer, hardness, cohesiveness, gumminess and brittleness of ML Jeung-Pyun decreased according to the amount ML added and springiness was not significantly different. The surface structure by SEM showed that Jeung-Pyun added with 4% ML had the largest and the most uniform air cells. In conclusion, the most acceptable concentrations of ML on the basis of overall quality in sensory evaluation and physicochemical characteristics were 2% or 4%.

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Influence of the Deposition Temperature on the Structural and Electrical Properties of LPCVD Silicon Films (증착온도가 LPCVD 실리콘 박막의 물성과 전기적 특성에 미치는 영향)

  • 홍찬희;박창엽
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.41 no.7
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    • pp.760-765
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    • 1992
  • The material properties and the TFT characteristics fabricated on SiOS12T substrate by LPCVD using SiHS14T gas were investigated. The deposition rate showed Arrhenius behavior with an activation energy of 31Kcal/mol. And the transition temperature form amorphous to crystalline deposition was observed at 570$^{\circ}C$-580$^{\circ}C$. The strong(220) texture was observed as the deposition temperature increases. XRD analysis showed that the film texture of the as-deposited polycrystalline silicon does not change after annealing at 850$^{\circ}C$. The fabricated TFT's based on the as-deposited amorphous film showed superior electrical characteristics to those of the as-deposited polycrystalline films. It is considered that the different electrical characteristics result from the difference of flat band voltage(VS1FBT) due to the interface trap density between the gate oxide and the active channel.

Organoleptic Characteristics of Dairy Products Supplemented with Raphanus raphanistrum subsp. sativus (radish) Powder: A Preliminary Study on Efficacy against Diabetes

  • Lim, Hyun-Woo;Song, Kwang-Young;Chon, Jung-Whan;Jeong, Dongkwan;Seo, Kun-Ho
    • Journal of Dairy Science and Biotechnology
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    • v.37 no.3
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    • pp.177-186
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    • 2019
  • Raphanus raphanistrum subsp. sativus (radish) powder contains several bioactive com- pounds and is widely used in the food industry. In this study, we examined the sensory attributes (taste, color, flavor, texture, and overall acceptability) of commercially available milk, yoghurt, and kefir containing different concentrations of R. raphanistrum subsp. sativus powder. The organoleptic characteristics of commercially available milk, yoghurt, and kefir was significantly different with respect to taste, flavor, color, texture, and overall acceptability in the treated group (1%, 2%. 3%. and 4%) compared to the control (0%; p<0.05). In addition, the scores of taste, flavor, color, texture, and overall acceptability decreased in proportion to the increase in amount of radish-powder in commercially available milk, yoghurt, and kefir. When 1% R. raphanistrum subsp. sativus powder was added to commercially available milk, yoghurt, and kefir, they showed good results in organoleptic characteristics compared to the control group. Therefore, our results could be used as the basis for estimating changes in organoleptic characteristics on supplementation of various dairy products with R. raphanistrum subsp. sativus.

Image Retrieval Using Spatial Color Correlation and Texture Characteristics Based on Local Fourier Transform (색상의 공간적인 상관관계와 국부적인 푸리에 변환에 기반한 질감 특성을 이용한 영상 검색)

  • Park, Ki-Tae;Moon, Young-Shik
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.44 no.1
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    • pp.10-16
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    • 2007
  • In this paper, we propose a technique for retrieving images using spatial color correlation and texture characteristics based on local fourier transform. In order to retrieve images, two new descriptors are proposed. One is a color descriptor which represents spatial color correlation. The other is a descriptor combining the proposed color descriptor with texture descriptor. Since most of existing color descriptors including color correlogram which represent spatial color correlation considered just color distribution between neighborhood pixels, the structural information of neighborhood pixels is not considered. Therefore, a novel color descriptor which simultaneously represents spatial color distribution and structural information is proposed. The proposed color descriptor represents color distribution of Min-Max color pairs calculating color distance between center pixel and neighborhood pixels in a block with 3x3 size. Also, the structural information which indicates directional difference between minimum color and maximum color is simultaneously considered. Then new color descriptor(min-max color correlation descriptor, MMCCD) containing mean and variance values of each directional difference is generated. While the proposed color descriptor includes by far smaller feature vector over color correlogram, the proposed color descriptor improves 2.5 % ${\sim}$ 13.21% precision rate, compared with color correlogram. In addition, we propose a another descriptor which combines the proposed color descriptor and texture characteristics based on local fourier transform. The combined method reduces size of feature vector as well as shows improved results over existing methods.

The Optimal Environmental Ranges for Wetland Plants: II. Scirpus tabernaemontani and Typha latifolia

  • Lee, Bo-Ah;Kwon, Gi-Jin;Kim, Jae-Geun
    • Journal of Ecology and Environment
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    • v.30 no.2
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    • pp.151-159
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    • 2007
  • We studied the optimal ranges of water and soil characteristics for wetland plants, particularly Scirpus tabernaemontani (softstem bulrush) and Typha latifolia (broadleaf cattail), which are dominant species with potential for restoration of Korean wetlands. We observed vegetation in S. tabernaemontani and T. latifolia communities from the mid to late June, 2005, and measured characteristics of water environments such as water depth (WD), temperature (WT), conductivity (WC), and concentration of several ions $(NO_3{^-}-N,\;Ca^{2+},\;Na^+,\;Mg^{2+},\;and\;K^+)$, and characteristics of soil environments such as soil texture, organic matter (loss on ignition, LOI), conductivity, and pH. The S. tabernaemontani community was accompanied by Zizania latifolia (Manchurian wildrice), Persicaria thunbergii (Korean persicary), Actinostemma lobatum (lobed actinostemma), and Beckmannia syzigachne (American slough grass), while the T. latifolia community was accompanied by P. thunbergii, T. angustifolia (narrowleaf cattail), and Glycine soja (wild soybean). We defined the optimal range for distribution (ORD) as the range that each plant was crowded. The optimal range of water characteristics for the S. tabernaemontani community was a $WD\;10{\sim}50cm,\;WT\;24.0{\sim}32.0^{\circ}C,\;WC\;100{\sim}500{\mu}S/cm,\;{NO_3}{^-}-N\;0{\sim}60ppb,\;K^+\;0.00{\sim}1.50ppm,\;Ca^{2+}\;7.50{\sim}17.50ppm,\; Na^+\;2.50{\sim}12.50ppm,\;and\;Mg^{2+}\;3.00{\sim}7.00ppm$. In addition, the optimal range of soil characteristics for the S. tabernaemontani community was a soil texture of loam, silty loam, and loamy sand, $LOI\;8.0{\sim}16.0%,\;pH\;5.25{\sim}6.25$, and conductivity $10{\sim}70{\mu}S/cm$. The optimal range of water characteristics for the T. latifolia community was a $WD\;10{\sim}30cm,\;WT\;22.5{\sim}27.5^{\circ}C,\;WC\;100{\sim}400{\mu}S/cm,\;{NO_3}{^-}-N\;0{\sim}60ppb,\;K^+\;0.00{\sim}1.50ppm,\;Ca^{2+}\;0.00{\sim}17.50ppm,\;Na^+\;0.00{\sim}12.50ppm,\;and\;Mg^{2+}\;0.00{\sim}5.00ppm$, and the optimal range of soil characteristics for the T. fatifolia community was a soil texture of loam, sandy loam, and silty loam, LOI $3.0{\sim}9.0%,\;pH\;5.25{\sim}7.25$, and conductivity $0{\sim}70{\mu}S/cm$.