• Title/Summary/Keyword: Brown

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The Analysis of Physicochemical and Sensory Characteristics in Brown Stock - Comparison of Traditional Method and High-Pressure Extracted Method - (갈색 육수의 이화학적 및 관능적 특성 분석 - 전통 방식과 고압 가열 방식 비교 -)

  • Choi, Soo-Keun;Jang, Hyuk-Rae;Rha, Young-Ah
    • Culinary science and hospitality research
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    • v.14 no.3
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    • pp.196-209
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    • 2008
  • This study was conducted to mass-produce brown stock optimized by using a high-pressure heating extractor and to use brown stock as a material for developing various products. For these purposes, we attempted to produce standardized brown stock by extracting brown stock using a high-pressure heating extractor and compared it with brown stock extracted by the traditional method in terms of general elements and mechanical and sensory characteristics. With regard to how to prepare optimal brown stock, the best brown stock was that extracted seven times repeatedly by the traditional method, but the method had a large economic loss in terms of material consumption and took a long time in extraction. Thus, considering time and labor, it was concluded that extraction at 120$^{\circ}C$ for 15 hours using a high-pressure heating extractor is the optimal extraction condition in terms of economic efficiency and quality. The results of this study are expected to be useful as a practical material for making brown stock production process more convenient, applying cooks' traditional cooking techniques to mass production, maintaining standardized superior quality and taste, and improving shelf life.

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Changes in pasting properties and free fatty acids of different brown rice cultivar during storage

  • Choi, Induck;Kwak, Jieun;Yoon, Mi-Ra;Chun, Areum;Choi, Dong-Soo
    • Food Science and Preservation
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    • v.24 no.4
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    • pp.491-496
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    • 2017
  • Paddy rice is typically stored during postharvest until rice grain is processed into brown rice and milled rice by hulling and milling procedure, respectively. Recently, instead of storing paddy rice, storage of brown rice has been in the spotlight because it is more convenient and economically feasible. Different brown rice cultivars with varying amylose contents including waxy rice, medium-waxy rice, and non-glutinous rice were stored in room temperature storage for four months, and the changes in grain qualities of brown rice were evaluated. Amylose content significantly affected pasting properties in which rice cultivar with higher amylose content showed longer pasting time and higher peak viscosity. Storage also affected pasting viscosities, showing an increase in peak viscosity, but a decrease in breakdown viscosity. The changes in pasting viscosity during storage could be an important starch property for aged brown rice utilization. Waxy brown rice showed the weakest aging property in terms of free fatty acids (FFA) accumulation, whereas non-glutinous rice was more substantial grain quality against aging. The FFA values of two months storage were not significantly different from the initial FFA contents, suggesting that brown rice stored in room temperature for two months could be feasible for direct consumption of brown rice.

Quality Characteristics of Waffle by adding Brown Rice Flour (현미가루 첨가량에 따른 와플의 품질특성)

  • Choi, Soon-Nam;Chung, Nam-Yong;Kim, Hyun-Jung
    • Korean journal of food and cookery science
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    • v.29 no.1
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    • pp.47-52
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    • 2013
  • The effects of added brown rice flour on the quality characteristic of waffle were investigated. Waffle were prepared by the addition of 0%, 25%, 50%, 75% and 100% of brown rice flour on wheat flour. The weight of waffle with brown rice flour ranged from 103.0~107.0 g and that of the control was 100.0 g. The volume of the waffle prepared by adding brown rice flour were 225.0~303.0 mL and that of the control was 307.5 mL. The weight of the waffle increased with increasing brown rice flour concentration, whereas volume and baking loss decreased. The hardness, chewiness (p<0.05) and springiness decreased with the addition of brown rice flour. The Hunter L values of waffle decreased, whereas a and b values increased with the addition of brown rice flour. The result of the sensory evaluation showed that taste and overall acceptability (p<0.05) was the highest for added brown rice flour.

Quality Comparison of Static-culture and Commercial Brown Rice Vinegars (정치배양 및 시판 현미식초의 품질특성 비교)

  • Woo, Seung-Mi;Jo, Yong-Jun;Lee, Su-Won;Kwon, Joong-Ho;Yeo, Soo-Hwan;Jeong, Yong-Jin
    • Food Science and Preservation
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    • v.19 no.2
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    • pp.301-307
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    • 2012
  • The quality of brown rice vinegar that was produced via static culture (A) was compared with the quality of three types of domestic commercial brown rice vinegar (B, C, and D) and of three types of Japanese brown rice vinegar (E, F, and G). The results showed titratable acidity levels of 6.39%, 4.52-6.32%, and 4.51-4.89% in the static-cultured brown rice vinegar, the domestic commercial brown rice vinegars, and the Japanese brown rice vinegars, respectively. The pH levels were 3.28, 2.58-2.97, and 3.03-3.27 in the static-culture brown rice vinegar, the domestic commercial brown rice vinegars, and the Japanese brown rice vinegars, respectively, which show similar values of the static-culture brown rice vinegar and the Japanese brown rice vinegars. The total nitrogen (TN) values of the static-culture brown rice vinegar, the domestic commercial brown rice vinegars, and the Japanese brown rice vinegars were 0.24, 0.03-0.16, and 0.12-0.17, respectively, with the highest value for the static-culture brown rice vinegar, substantial differences among the domestic commercial brown rice vinegars, and similar contents among the Japanese brown rice vinegars. For free sugar, glucose was either detected only in a small quantity or not detected at all in the static-culture brown rice vinegar and the Japanese brown rice vinegars, which showed perfect fermentation. The glucose and maltose contents were higher in the domestic commercial brown rice vinegars. The organic acid content of the static-culture brown rice vinegar was similar to that of the Japanese brown rice vinegars. Therefore, the total acidity content, TN value, sensory property, and quality of the static-culture brown rice vinegar (A) were superior to those of the domestic and Japanese brown rice vinegars.

The Characteristics of Brown Stock Prepared by High Pressure Cooking (고압 가열 방식으로 추출한 Brown Stock의 특성)

  • 최수근;최희선;이재성
    • Journal of the East Asian Society of Dietary Life
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    • v.11 no.4
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    • pp.281-288
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    • 2001
  • The autoclave method and the traditional cooking method were compared for nutrients(especially, minerals), color difference, viscosity, reduction of sugar and amino nitrogen content of brown stock. The autoclave cooking method is better than the traditional cooking method for retaining protein and amino nitrogen contents, as well as for reducing sugar content. Also, reducing sugar content increased by the autoclave cooking method. Since the color of brown sauce was related with the reducing sugar content, the autoclave cooking method was more effective than the traditional cooking method for the color development of brown stock. Since the autoclave method can reduce the cooking time without a loss of quality in brown stock, the autoclave method is a viable alternative to the traditional method of preparing brown stock.

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Development of a Constituent Prediction Model of Domestic Rice Using Near Infrared Reflectance Analyzer(II) - Prediction of Brown and Milled Rice Protein Content and Brown Rice Yield from undried Paddy - (근적외선 분석계를 이용한 국내산 쌀의 성분 예측모델 개발(II) -생벼를 이용한 현미.백미의 단백질 함량과 현미수율 예측-)

  • 한충수;연광석;고과이랑
    • Journal of Biosystems Engineering
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    • v.23 no.3
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    • pp.253-258
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    • 1998
  • The part I was for developing regression models to predict the moisture content, protein content and viscosity of brown and milled rice using Near Infrared(NIR) Reflectance analyzer. The purpose of this study(part II) is to measure fundamental data required for the prediction of rice quality, and to develop regression models to predict the protein content of brown and milled rice, brown rice yield from undried paddy powder by using Near Infrared(NIR) Reflectance analyzer. The results of this study were summarized as follows : The predicted values of protein contents obtained from the undried paddy powder were well correlated to the measured values from brown and milled rice. The predicted yields of brown rice from undried paddy powder were not well correlated to the lab measured values from dried paddy. Continuous study in wavelength selection and of constituent relationship is necessary for practical application.

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Development of a Constituent Prediction Model of Domestic Rice Using Near Infrared Reflection Analyzer (II)-Prediction of Brown and Milled Rice Protein Content and Brown Rice Yield from Undried Paddy (근적외선 분석계를 이용한 국내산 쌀의 성분예측모델 개발(II)-생벼를 이용한 현미.백미의 단백질 함량과 현미수율 예측)

  • ;;J.R. Warashina
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1998.06b
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    • pp.171-177
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    • 1998
  • The part Ⅰ was for developing regression models to predict the moisture content, protein content and viscosity of brown and milled rice using Near Unfrared (NIR) Reflectance analyzer. The purpose of this study(part Ⅱ) is to measure fundamental data required for the prediction of rice quality , and to develop regression models to predict the protein content of brown and milled rice, brown rice yield from undreid paddy powder by using Near Infrared (NIR) Reflectance analyzer. The results of this study were summarized as follows . The predicted values of protein contents obtained from the undried paddy powder were will correlated to the measured values from brown and milled rice. The predicted yields of brown rice from undried paddy powder were not well correlated to be lab measured values from dried paddy. Continuous study in wavelength selection and of constituent relationship is necessary for practical application.

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Physicochemical and Sensory Characteristics of Brown Sauce made with Pork Bone (돼지뼈를 이용한 갈색육수 소스의 이화학적 및 관능적 특성)

  • Kim, Yong-Sik;Song, Chung-Rak
    • Culinary science and hospitality research
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    • v.7 no.1
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    • pp.119-133
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    • 2001
  • The purpose of this study was to investigate the sensory and physicochemical properties of brown sauce made with different kind of bone(beef bone, pork bone). For this purpose, the various methods and recipe of brown sauce appeared in the literatures were evaluated to select the most preferable brown sauce. Brown sauces made with pork bone, beef and pork bone showed negative value in the "a" value (redness). Viscosity of brown sauce made with pork bone was the highest as well as the brown stock. The sensory tests of brown sauce showed no significant difference between each groups except flavor at p<0.001.

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Dyeability of Colorant in Eucommiae Cortex - Analysis of Color Difference Value Depending on Dyeing Condition - (두충색소의 염색성 - 염색 조건에 따른 색차분석을 중심으로 -)

  • Jung, Ji-Yoon;Suh, Young-Sook
    • Fashion & Textile Research Journal
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    • v.3 no.1
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    • pp.31-34
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    • 2001
  • The color difference values of dyed fabrics with colorant in Eucommiae Cortex were as follows; One hour of dyeing depending on pH at $95^{\circ}C$ exhibited colors of dark brown, light brown, light beige and grey. The colors of wool, nylon and silk was darkest brown at pH 3 but light brown or yellow as pH increased. In all dyed fabrics the color was changed to darker brown as time prolonged, however; there was no further color change and value and chroma of wool declined. At pH 3, the increase in temperature turned colors of all dyed fabrics into dark brown from light yellow. As the result of repetitive dyeing, colors of all dyed fabrics gradually turned into darker brown. The methods of mordant resulted in color changes between light yellow and dark brown without various color changes.

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Three Cases of Acquired Simulated Brown Syndrome after Blowout Fracture Operations

  • Ji, So Young;Yoo, Jae Hong;Ha, Won;Lee, Ji Won;Yang, Wan Suk
    • Archives of Plastic Surgery
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    • v.42 no.3
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    • pp.346-350
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    • 2015
  • Brown syndrome is known as limited elevation of the affected eye during adduction. It is caused by a disorder of the superior oblique tendon, which makes it difficult for the eyeball to look upward, especially during adduction. It is classified into congenital true sheath Brown syndrome and acquired simulated Brown syndrome. Acquired simulated Brown syndrome can be caused by trauma, infection, or inflammatory conditions. The surgical restoration of blowout fractures can also lead to limitations of ocular motility, including Brown syndrome. We report on three patients with acquired simulated Brown syndrome, who complained of diplopia and limitation of ocular motility after operations to treat blowout fractures.