• Title/Summary/Keyword: 두부

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A Study on Lateral Loading the Field Test of Pile for Large Diameter Drilled Shaft Pile (대구경 현장타설말뚝에 대한 현장수평재하시험에 관한 연구)

  • Choi, Yong-Kyu;Lee, Min-Hee;Lee, Chung-Sook
    • Journal of the Korean GEO-environmental Society
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    • v.5 no.2
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    • pp.33-39
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    • 2004
  • Most of pile foundations are a condition of fixed head on pile, but lateral loading test of pile have performed to free head on generally. This study performed field lateral loading test accompanying lateral displacement by depth of pile for two cases(fixed head and free head) and analyzed lateral behavior of large drilled shaft. Furthermore compared theoretical equation with result of lateral loading test.

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천마를 첨가한 두부의 품질 특성변화

  • 김진성;이준호;하영선
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 2003.10a
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    • pp.162.1-162
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    • 2003
  • 천마(Gastrodia Rhizoma)는 뽕나무 버섯과 편리공생하는 난초과(Orcbidan ceae)에 속하는 다년생 초본인 천마(수자해좇, 정풍초, Gastrodia elata Blume)의 뿌리를 지칭하는 것으로서 잎이 없으며, 땅속의 괴경이 한약재로 이용된다. 주로 고혈압, 신경성질환, 당뇨병 등의 성인병 뿐 아니라 스트레스해소, 피로회복 등에 효과가 있는 것으로 알려져 있는 한약재이다. 천마의 주요 효능으로는 항경련 작용 및 항간질 작용에 대한 보고가 있으며, 약리작용을 나타내는 주요성분은 gastrodin, p-hydroxy benzyl alcohol, p-hydroxy benzyl aldehyde, vanillin등의 ployphenol성분으로 알려지고 있다. 한편 두부는 동물성 단백질 식품과는 다르게 열량과 포화지방 함량이 낮고 콜레스테롤이 함유되어 있지 않으며 ,가격이 저렴하여 경제적인 단백질 식품으로 각광받고 있다. 따라서 임상적, 약리적 효능이 있는 물질을 강화하여 기존두부에 비해 영양학적인 기능성을 향상시킬 목적으로 두유에 천마즙을 혼합하여 제조하였고, 기능성 두부제조시 가수량, 가열시간 및 천마즙의 첨가량이 두부수율에 미치는 영향과 텍스쳐, 색도, 탁도, 세균수 등의 품질특성을 일반 두부와 비교·검토하였다.

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Development of Shelf-life Prediction Model of Tofu Using Mathematical Quantitative Assessment Model (수학적 정량평가 모델을 이용한 두부의 유통기한 예측 모델의 개발)

  • Shin Il-Shik
    • Food Industry And Nutrition
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    • v.10 no.1
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    • pp.11-16
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    • 2005
  • 식물성 단백질의 주요 공급원이며 우리나라 전통식품 중의 하나인 두부의 유통기한을 정량적으로 예측할 수 있는 수학적 모델을 개발하고자 온도와 초기균수에 따른 두부 부패세균의 성장 실험 결과를 데이터베이스화하여 이를 바탕으로 균의 성장을 정량적으로 평가할 수 있는 수학적 모델을 개발하였다. 근의 증식 지표인 최대증식속도상수(k), 유도기(LT), 세대시간(GT)은 온도에 지배적인 영향을 받았으며, 초기균수에 따른 유의 적 인 차이 는 없었다(p<0.05). 최대증식속도상수와 온도 및 초기균수의 상관관계를 나타내는 수학적 정량평가모델인 square root model을 이 용하여 두부 부패 세균의 성장을 정량적으로 예측할 수 있는 모델$({\surd}{\kappa}=0.016861(T+6.87095))$을 개발하였으며 실험치와 예측치의 상관계수는0.969이었다. 이 예측 정량평가모델로부터 예측한 최대증식속도상수와 두부의 관능적 부패시 점을 반영 한 Gompertz 변형 모델을 이용하여 두부의 유통기한을 예측할 수 있는 모델$(Spoilage-critrion(hr)=\frac{2{\times}Ln2+Ln[(Nmax/No)-1])}{k}$을 개발하였다

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The Quality Characteristics of Kanghwang(Curcuma aromatica Salab.) Tofu Prepared with Various Coagulants (응고제에 따른 강황 두부의 품질 특성)

  • Park, Geum-Soon;Lee, Shin-Ho;Park, Kyoung-Nam
    • Journal of the East Asian Society of Dietary Life
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    • v.17 no.4
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    • pp.547-553
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    • 2007
  • The physicochemical and functional properties of tofu prepared with kanghwang(Curcuma aromatica Salab.) were investigated, in order to study the effects of six different commercial coagulants. The coagulant concentrations were determined as 0.3% GDL, 0.3% $MgCl_2$, 1.0% $CaCl_2$, 1.5% $CaSO_4$, 0.45% mixed coagulant, and 1.5% Milky-Mg by pre-experiments. Also, the optimum concentration for the added kanghwang(Curcuma aromatica Salab.) was chosen as 0.01%. The yields of the kanghwang tofu prepared with Milky-Mg, mixed, and GDL coagulants were higher than those prepared with $MgCl_2$, $CaCl_2$, and $CaSO_4$. The pH of the kanghwang tofu prepared with the $MgCl_2$ coagulant was higher than when made with the other coagulants. The turbidity of the kanghwang tofu was highest when it was coagulated with GDL, and moisture content was highest or the of kanghwang tofu coagulated with $CaCl_2$. In the color analysis of the kanghwang tofu, the $L^{***}$ value was highest with the Milky-Mg coagulant, while the $a^{***}$ value was highest and the b value lowest with the GDL coagulant. For the textural properties, the hardness results were in the order of $CaSO_4$ > $CaCl_2$ > $MgCl_2$ > mixed > GDL > Milky-Mg, springiness, gumminess, and brittleness were highest in the tofu coagulated with Milky-Mg. For the overall acceptability of the sensory properties, the Kanghwang tofu that was made using the mixed coagulant had the highest score.

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일본 증권가를 주름잡는 두부 한 모의 힘!

  • Kim, Hong-Guk
    • Venture DIGEST
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    • s.111
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    • pp.54-55
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    • 2007
  • 동네 할머니들이 만들어 이웃 간에 구수하게 나눠먹을 것 같은 두부 한 모로, 연매출 1,800억 원대의 벤처기업이 된 두부가게 시노자키아! 그들에게서 대표적인 역발상 창업기법을 배운다.

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The Nutritional Aspect of Tofu (두부가 인체에 미치는 영양학적 고찰)

  • Jung, Moon-Kyung;Kim, Sung-Hwan
    • Journal of the Korea Convergence Society
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    • v.7 no.3
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    • pp.177-184
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    • 2016
  • The purpose of this study was to nutritional aspect of tofu. Tofu is a widely-enjoyed food made from soybeans, and it is a great example of how a simple food like soybeans can be woven into human food traditions in a way that is natural, inexpensive, and nourishing. One of the most important things to remember about tofu is its basic whole food nature. Tofu is produced with significantly less processing than most low-fat soymilks, it is a soy food that is much closer to a "whole foods" category than soy protein isolates and concentrates. From a health benefits standpoint, there are also benefits to tofu that has been fermented. Replacing meat and dairy with tofu and other soy products would also lower our total cholesterol intake by about 125 mg per day and our saturated fat by about 2.4 g per day. These nutritional changes, in turn, would lower our risk of several chronic diseases, including cardiovascular and cerebrovascular diseases.

Comparison of soybean varieties for physical properties of Tofu (콩 품종별 두부의 물리적 특성의 비교)

  • Chang, Cheon-Il;Lee, Jung-Kun;Kim, Woo-Jung
    • Applied Biological Chemistry
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    • v.33 no.3
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    • pp.203-208
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    • 1990
  • The physical characteristics of texture, water holding capacity, color and swelling of soybean curd were studied for 14 varieties of soybeans grown in Korea. The relative water holding capacity, measured by moisture absorption method with using filter paper, was high for Millyang-21. Danyeob and Hwangum, low for Suwon-138, -141 and -142. All of the soybean curd prepared showed negative Sag values, which indicates swelling properties of Tofu as it as released from pressed condition. The most swollen variety was Suwon-138 and the least one was Suwon-142. Generally, soybean curd having high moisture content had low valuss in hardness but no significant relationship was found. Elasticity ud cohesiveness showed a little differences except Suwon-138. Other textural characteristics of fracturability, adhesiveness and gumminess showed a wide range in their values among the varieties.

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The Evaluation of Stability for Hook-type Bonding Method of Pile Foundation and Cap (훅타입 말뚝두부보강 기초의 안정성 평가)

  • Lee, Heunggil;Oh, Sewook
    • Journal of the Korean GEO-environmental Society
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    • v.8 no.3
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    • pp.41-49
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    • 2007
  • The typical bonding methods which connect steel pipe pile and spread footing is bolted bonding method using +type cover plate for reinforcing a head of steel pipe pile. In this paper, stability of spread footing in pile foundation have been evaluated by loading test of +type cover plate for reinforcing a head of pile and hook type bonding method. The presents results from a series of pilot model test on vertically loaded piles foundation of bolted bonding method and hook type bonding method, pile foundation is identified to safety due to pile foundation exceed 8.5~21% which more than yield stress of steel pipe pile. As the results of horizontal loading tests, peak load of piles foundation of hook type bonding method has estimated in 41.1tonf and it was exceed about 33% which more than pile foundation of bolted bonding method.

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Development of the Pilot Type Machine for Automation of PHC Pile Cutting Work (PHC 파일 두부정리 자동화를 위한 파일롯타입 장비의 개발)

  • Lee Jeong-Ho;Park Sang-Jun;Jeong Myung-Hoon;Kim Young-Suk
    • Korean Journal of Construction Engineering and Management
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    • v.4 no.4 s.16
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    • pp.173-181
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    • 2003
  • During the last few years, the use of Pre-tensioned spun high strength concrete piles(PHC pile) has been gradually increased in many construction sites. Cutting work of the concrete pile is an important task to crush a part of pile head which is compressed with more than 800$\cal{kg}f/cm^2$. It is usually performed by a crusher and three to four skilled workers. Recent analysis results of the pile cutting work reveal that it frequently makes a lot of cracks which significantly reduce the strength of the pile and is labor-intensive work. The primary objective of this study is to propose conceptual designs for developing an automated pile cutting machine. It is anticipated that the development of the automated pile cutting machine would be able to bring improvements in safety, productivity, quality as well as cost saving.

Effects of Coagulants on Storage of Packed Tofu (충진 두부의 저장성에 미치는 응고제의 효과)

  • Kim, Dong-Han;Lee, Kap-Sang
    • Korean Journal of Food Science and Technology
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    • v.24 no.1
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    • pp.92-96
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    • 1992
  • Several coagulants was investigated for their effects on shelf-life of packed Tofu. The titratable acidity, amino nitrogen content in Tofu and the optical density of Tofu suspension were increased as the spoilage developed during storage. The number of microorganisms was increased to 13 million cells per gram after 1 day of storage at $30^{\circ}C$ in the Tofu prepared with $MgSO_{4}\;and\;CaCl_{2}$. But, the Tofu prepared from acetic acid was found to be more stable for storage. The quality of Tofu was maintained up to 12 days or 18 days at $30^{\circ}C\;or\;15^{\circ}C$, respectively. These results suggested that acetic acid was desirable as a coagulant of packed Tofu to extend its shelf life.

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