• Title/Summary/Keyword: dough extension

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메밀빵 제조: 1. 활성 글루텐과 수용성 gum물질 첨가가 메밀혼합분 반죽 물성에 미치는 효과 (Development of Buckwheat Bread: 1, Effects of Vital Wheat Gluten and Water-Soluble Gums on Dough Rheological Properties)

  • 정지영;김창순
    • 한국식품조리과학회지
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    • 제14권2호
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    • pp.140-147
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    • 1998
  • 메밀빵 개발에 사용된 강력분 70%와 외피함량이 적은 메밀가루 A와 외피함량이 많은 메밀가루 B 30%의 혼합분에 활성 글루텐과 gum물질(guar gum, xanthan gum)을 첨가했을 경우 첨가물에 따른 반죽의 물리적 성질을 조사하였다. Farinogram 특성치에서 메밀가루 A복합분은 수분 흡수율, 반죽 형성 시간, 안정도가 모두 감소하였고 약화도는 증가한 반면, 메밀가루 B 복합분은 수분흡수율과 약화도는 증가하고, 반죽형성시간과 안정도는 감소하였지만 메밀가루 A 복합분보다는 안정도와 약화도가 모두 크게 나타났다. 활성 글루텐 첨가로 수분 흡수율이 증가하였고 반죽형성시간은 길어지고 약화되는 정도는 감소하였다. 또한 안정도는 xanthan gum첨가로 다소 증가하여 활성 글루텐 첨가시보다 오히려 높았다. Extensogram특성치에서 메밀가루 대체시에 신장성과 반죽의 강도는 감소하였고 특히 메밀가루 B 복합분이 신장성이 낮게 나타났다. 신장에 대한 저항도는 메밀의 외피함량에 따라 차이를 나타내어 메밀가루 A 복합분에서는 감소하였으나 메밀가루 B 복합분은 반대로 현저한 증가가 나타나 반죽이 경직되는 경향을 보였다. 그러나 활성 글루텐의 첨가로 신장성은 증가하였고 신장에 대한 저항도는 감소하여 메밀을 함유한 반죽 물성이 개선되었다. Gum물질 첨가만으로는 메밀빵 반죽 물성을 개선할 수 있는 신장성에 대한 효과는 나타나지 않았다.

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Extension Properties of Frozen Hard Wheat Flour Doughs Mixed with Ascorbic Acid and Gluten Hydrolysate

  • Koh, Bong-Kyung
    • Food Science and Biotechnology
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    • 제16권4호
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    • pp.590-593
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    • 2007
  • The textural properties of doughs mixed with L-ascorbic acid (AA), trypsin hydrolyzed gluten peptide (THGP), and a mixture of AA-THGP were investigated using texture analyzer under the fermentation of the full formula and the freezing process. The full formula dough (FFD) required a shorter mixing time than the flour and water formula dough (FWD). The maximum resistance (Rmax) values of both the unfrozen and frozen doughs were lower for the FFD. The effects of AA and THGP additions were not significant (p<0.01) in FFD, however, they were significant in FWD. The freezing effect was significant (p<0.0001) for FFD, indicating that yeast fermented dough was much more sensitive to damage from freezing, which subsequently affected dough strength. Additions of AA (p=0.0026) and THGP (p=0.0097) had a significant effect on the extensibility (E-value) of unfrozen FWD, where THGP increased and AA decreased the E-value. However, freezing did not significantly effect the extensibilities of FWD (p=0.64) or FFD (p=0.21). The area of FFD was lower than the area of FWD for both the unfrozen and frozen doughs. However, the frozen dough mixed with THGP alone had the largest area overall. The addition of additives did not result in significantly different (p<0.01) areas under the curve, except in the frozen FFD. Freezing caused a statistically significant difference in the area of FWD (p=0.0045).

전립분 첨가 반죽의 물리적 특성 (Rheological Properties of Dough with Whole Wheat Flour)

  • 김영호;최광수;손동화;김정호
    • 한국식품영양과학회지
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    • 제25권5호
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    • pp.817-823
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    • 1996
  • 전립분의 입도를 달리하여 거친전립분, 고운전립분을 각각 첨가했을 경우 첨가량에 따른 반죽의 물리적 성질을 조사하였다. Farinograph는 전립분 첨가량이 증가함에 따라 흡수량은 거친전립분에서 감소하는 반면 고운전립분은 증가하였다. 반죽도달시간 및 반죽형성시간은 거친전립분의 경우 고운전립분 보다 길어졌다. 약화도는 전립분 첨가량이 증가할수록 약화도가 커졌다. Extensograph는 전립분 첨가량이 증가할수록 신장도 및 신장저 항도가 감소하였으며, 거친전립분에서 신장저항도가 고운전립분 보다 전반적으로 높은 수치를 보였다. Amylograph는 전립 분 첨가량이 증가할수록 최고 점도가 감소하였다. 백도는 전립분 침가량의 증가에 따라 낮았으며, 동일량의 첨가구에서는 거친전림분이 고운전립분 보다 백도값이 다소 높아 약간 밝은 색을 띠었다.

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녹차가루 첨가에 따른 밀가루 반죽의 물성 및 호화특성 변화 (Effects of Green Tea Powder on Dough Rheology and Gelatinization Characteristics)

  • 오유경;김창순
    • 한국식품영양과학회지
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    • 제31권5호
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    • pp.749-753
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    • 2002
  • 혼합분과 강력분의 farinograph 수분 흡수율, 반죽형성시간, 연화도는 녹차가루 첨가량(0~5%)이 증가할수록 증가하였으며, 안정도는 혼합분은 점차 증가하였고, 강력분은 점차 감소하여 다른 경향을 보였다. 혼합분, 강력분 모두 녹차 첨가량이 증가할수록 반죽의 신장도는 감소하고, 신장 저항도는 증가하여 전체적으로 반죽이 경직되는 경향을 보였다. Amylogaph에서 혼합분과 강력분 시료 현탁액 모두 녹차가루 첨가로 호화개시온도가 상승하였고, 최고호화점도는 감소하였다. DSC에 의한 밀전분의 호화특성에서 환원성 물질인 녹차의 카테킨 성분은 밀전분의 결정질 구조의 용융을 촉진하는 것으로 나타났다.

Bifidobacterium sp.로 제조된 반죽의 물성적 특성 (Rheological Characteristics of Wheat Flour Dough with Bifidobacterium sp.)

  • 안덕준;홍정훈
    • 한국식생활문화학회지
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    • 제17권2호
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    • pp.165-170
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    • 2002
  • In order to economically utilize dough with B. longum, B. infantis and B. brevis as a bread improver, aerotolerance, ${\alpha}-galactosidase$ activity, organic acids, farinograph and extensograph of dough were investigated. In aerotolerance of Bifidobacterium sp., B. longum was highest among tested starters, followed by B. infantis. The ${\alpha}-galactosidase$ activity was highest in the B. longum among tested starters. In organic acids, the contents of lactic acid and acetic acid were the highest in the among tested starters, followed by B. infantis. In farinograms of dough, water absorption and peak time were highest in the B. brevis among tested dough. Extensogram showed that the area increased remarkably in B. longum and B. infantis at 135min of fermentation. Extensibility and resistance to extension of dough were highest in the B. infantis among the dough, followed B. longum.

백복령분말을 첨가한 밀가루 반죽의 물성특성 (Rheological Properties of Flour Dough Added Power of Poria Cocos Wolf)

  • 신길만
    • 한국식품저장유통학회지
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    • 제15권2호
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    • pp.197-202
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    • 2008
  • 백복령분말의 첨가량에 따른 밀가루 반죽의 품질특성에 미치는 영향을 알아보기 위하여 백복령분말을 $0{\sim}5%$의 비율로 첨가하여 반죽의 물리적 특성을 비교 분석한 결과는 다음과 같다. 백복령분말을 첨가한 Mixograph에서는 midline peak time는 분말첨가에 따라 $1{\sim}2%$에서는 증가하였고 $3{\sim}5%$에서는 대구조보다 감소하였다. Midline peak height는 대구조보다 모두 감소하였다. 주사현미경관찰은 백복령분말 첨가량이 증가할수록 기공이 크고 불균일하였다. Farinogragh 특성 중 반죽의 점조도와 수분 흡수율은 백복령분말의 첨가량이 증가할수록 증가하였고, 반죽 형성시간과 안정도는 감소하였다. 주사현미경에서는 백복령분말 첨가량이 증가할수록 기공이 거칠고 크게 나타났다.

밀기울 첨가 반죽의 물리적 특성 (Rheological Properties of Dough Added with Wheat Bran)

  • 김영호
    • 한국식품영양과학회지
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    • 제27권6호
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    • pp.1125-1131
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    • 1998
  • The rheological properties of wheat flour dough were investigated in the dough added with 0, 10, 15, 20, 25 and 30% of wheat bran. The ratios of ash contents in wheat flour and wheat bran were 0.43% and 5.28%, respectively. The ratios of fiber contents in wheat flour and wheat bran were 0.18% and 11.86%, respectively. The farinograph water absorption was increased as the amount of wheat bran was increased. Both arrival time and development time of the dough added with wheat bran were longer than those of wheat flour. As the amount of wheat bran was increased, the weakness was increased. The extensograph showed that extensibility and resistance to extension of dough were decreased, while the ratio of resistance to extensibility(R/E) was increased with increasing the amo unt of wheat bran. The maximum viscosity by amylograph was decreased gradually with the adding amount of wheat bran, while the gelatinization temperature was slightly increased with wheat bran.

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김치 분말을 첨가한 식빵의 반죽 특성 (Effects of Kimchi Powder on the Quality of White Bread Dough)

  • 기미라;김래영;전순실
    • 동아시아식생활학회지
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    • 제15권3호
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    • pp.334-339
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    • 2005
  • This study was conducted to test the white bread dough with substitution of 1, 2, 3, 4 and $5\%$ kimchi powder on farinograph, extensograph, amylograph, and pH to find the dough development time, stability, extensibility, resistance to extension, temperature at gelatinization, and temperature at maximum viscosity. Dough with kimchi powder showed less moisture absorption than control. Upon increasing amount of kimchi powder, pH was decreased and dough development time was increased Extensibility of dough showed negative correlation with amount of kimchi powder added Gelatinization temperature increased but maximum viscosity temperature decreased as the amount of kimchi powder increased Overall, the samples with substitution of kimchi powder showed better extensibility than the control sample at the first fermentation.

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동충하초 분말 첨가한 빵 반죽의 물리적 특성 (Rheological Properities of Bread Dough Made from Cordyceps militaris Powder)

  • 김창섭
    • 한국식품영양학회지
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    • 제23권1호
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    • pp.8-14
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    • 2010
  • This study was carried out to develop an optimum baking formula and baking process for a new bread raw material with added Cordyceps militaris powder, which has been known to prevent various adult diseases and cancers. The rheological properities of dough made from Cordyceps militaris powder-wheat flour with 0, 1, 2, and 3% Cordyceps militaris powder added-were investigated. A farinogram showed that the water absorption and weakness value of dough increased with added Cordyceps militaris powder, but development time and dough stability were decreased. An extensogram showed that resistance to extension was increased in bread with 1% Cordyceps militaris powder, but decreased in bread with 2% and, 3% powder. Extensibility decreased fermentation progressed. An amylogram showed that gelatinization point was increased but maximum viscosity was decreased with added Cordyceps militaris powder. With increased amounts of powder dough volume during fermentation was reduced. The change in pH values of dough after mixing, fermentation, and proofing decreased with increased amounts of added powder.

설탕과 조청의 첨가량에 따른 반죽의 물성과 식빵의 품질 특성 (Effects of Sucrose and Jochung on Textural Properties of Dough and Quality Characteristics of White Pan Bread)

  • 김영호
    • 한국식품영양학회지
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    • 제32권2호
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    • pp.79-88
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    • 2019
  • This study was conducted to evaluate the characteristics of bread and the rheology of flour dough containing jochung. In the farinogram test, the addition of jochung changed water absorption, development time and mixing tolerance index for making bread As the amount of jochung increased, the water absorption, mixing tolerance index decreased and the development time increased. In the extensograph test, the degree of extension decreased with increasing of jochung content whereas degree of resistance was enhanced with addition of jochung. After fermentation treatment, the volume of the dough with 20% sucrose were less than that of the dough containing 20% of jochung. The dough with 5% jochung showed the lowest dough raising power compared to the other doughs. The bread consisting of 15% jochung showed the highest volume of loaf and specific volume. Therefore, high quality of bread can be achieved by adding jochung instead of sucrose for making bread.