• 동아시아식생활학회지
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• 제24권5호
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• pp.621-630
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• 2014

This study presents the quality characteristics of blueberry bread. Blueberry fruit powder was added to bread dough at various concentrations ranging from 3~9%, after which physicochemical properties of dough and bread containing blueberry fruit powder were determined. The pH, loaf volume, specific loaf volume, dough volume and baking loss decreased with increasing amount of blueberry fruit powder in bread, whereas loaf weight and hardness were reduced. In particular, hardness appeared to be 1.98 times higher in the control without blueberry powder compared to the bread containing 9% blueberry powder. For color, increasing the amount of blueberry fruit powder reduced L and b values, whereas a value was increased. In the sensory evaluation, the highest overall preference score was observed in bread containing 6% blueberry powder, whereas the lowest score was observed in bread with 9% blueberry powder. From these results, blueberry bread with good acceptability has an optimum blueberry powder concentration of 6%.

• 한국식품과학회지
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• 제14권4호
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• pp.370-374
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• 1982

본(本) 연구(硏究)는 쌀보리 가루와 복합분(複合粉)을 주원료(主原料)로 사용(使用)하여 직접 반죽법(staright method)과 젖산 발효법에 의(依)한 빵의 부피의 변화(變化)를 조사하였으며 그 결과(結果)는 다음과 같다. 직접 반죽법과 젖산 발효법에 의(依)한 보리빵의 비(比)부피는 각각(各各) 1.11 ml/g bread 및 1.50 ml/g bread로 나타났다. 이는 젖산 발효법에 의(依)한 보리빵 제조의 가능성을 시사하고 있다. 복합분(複合粉)을 젖산 발효법에 따라 제빵하는 경우, 빵의 부피의 증가율(增加率)은 둔화되거나 감소(減少)하였다. 또한 소맥분(小麥粉)을 souring하면, 빵의 비(比)부피가 직접 반죽법에 비해 약 50%가 감소하였다. 쌀보리 가루는 1차(次)발효시간(혹은 산도(酸度))이 증가함에 따라서 빵의 비(比)부리는 증가하였다.

• 한국식품조리과학회지
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• 제22권3호통권93호
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• pp.270-281
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• 2006

The study investigated the effect of prefermentation of Bifidobacteria longum and Lactobacillus plantarum on baking quality. Firstly, two kinds of prefermentation were cultured using two lactic acid bacteria, Bifidobacteria longum and Lactobacillus plantarum. White pan bread baked with dough that had undergone these two prefermentation methods was compared with that baked with a non-prefermented control. The physicochemical properties of the three breads were analyzed, and then the physicochemical and sensory properties of the dough and baked bread were cross-analyzed. The pH prefermentation of Bifidobacteria longum was lower than that of Lactobacillus plantarum, whereas the titratable acidity was higher. Compared to the results from analyzing the prefermentation of Lactobacillus plantarum, the prefermentation of Bifidobacteria longum was expected to give positive effects on enriching the bread flavor by creating acetic acid at a level three- to eight-fold higher than that of Lactobacillus plantarum. According to the mixogram data, the optimum ending time for both Bifidobacteria longum prefermentation and Lactobacillus plantarum was around 4.5 to 5 minutes. The speed of dough materialization decreased with increasing prefermentation culture time. The baked bread with added Bifidobacteria longum had a higher water content. However, the other contents were not influenced by prefermentation, but were by culture time. The specific loaf volume, oven spring and baking lass rate all peaked at 20 hours after culture for both prefermentation cultures. The sensory test results indicated the highest prefermentation for the bread baked with prefermented Bifidobacteria longum doughwith a culture time ranging from 20 to 26 hours. In addition, the bread baked with prefermented Lactobacillus plantarum dough gave the highest preference when cultured for 20 hours.

• 한국작물학회지
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• 제42권3호
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• pp.344-351
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• 1997

The experiment was conducted to examine the varietal variation in gelatinization of rice flour and adaptability to rice bread processing, and the interrelation among the relevant properties. IR 44 showed the lowest temperature of gelatinization onset(T$_{o}$ ) and the highest gelatinization enthalphy(ㅿH) measured by differential scanning calorimetry (DSC). The following lower T$_{o}$ was found with the order of Suweon 230＜Pusa-33-30＜T(N) 1, Daeribbyeo 1 and the next higher ㅿ.H was followed by the order of Pusa-33-30＞Suweon 230. IRAT 177 revealed the highest temperature of gelatinization onset and conclusion(T$_{c}$) and the following higher T$_{c}$ was found with the order of Pusa-33-30＞AC 27＞Nonganbyeo. The varietal range of T$_{o}$ and T$_{c}$ was 50.0~72.5$^{\circ}C$ and 70.2~87.4$^{\circ}C$, respectively. The rice materials tested can be classified by scatter diagram on the plane of upper two principal components contracted from DSC thermogram and various characteristics relevant to processing and sensory preference of rice bread by principal component analysis. AC27, Suweonjo and IR 44 among high-amylose rices showed better suitability to rice bread processing. The temperatures of gelatinization peak and conclusion of rice flour checked by DSC were significantly negatively associated with springiness of rice bread. The most properties relevant to processing and sensory preference of rice bread such as hardness, moistness, springiness, cohesiveness, specific loaf volume and distribution or size of air cell revealed the close correlation between each other.other.

• 한국식품과학회지
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• 제35권1호
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• pp.92-96
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• 2003

반죽을 중종법으로 제조하여 1차발효 후 냉동생지 제조시 비타민 C의 양을 다르게 첨가하여 효모의 생균수, 제품의 부피, 비용적, 조직감 및 관능검사 등에 미치는 영향을 조사하였다. 효모의 생균수는 비타민 C를 100 ppm 첨가한 것에서 높은 생존율을 나타냈다. 비용적과 부피에서는 비타민 C를 150 ppm 첨가한 것에서 가장 높은 값을 나타냈다. 제품의 조직감에 미치는 영향은 비타민 C의 첨가량이 많을수록 높은 값을 모여 첨가량이 많을수록 부드럽지 못함을 나타냈다. 관능검사에서는 비타민 C를 100 ppm 첨가한 것이 높은 점수를 얻었다.

• 동아시아식생활학회지
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• 제27권5호
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• pp.529-539
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• 2017

The aim of this work was to make acorn bread containing natural antioxidants as healthy food. The amylographic characteristics, loaf volume, color, texture, and subjective preference of the acorn bread containing 5~25% of acorn flour were measured during storage at room temperature and in a freezer. The results were as follows: The loaf volume decreased with increasing the addition of acorn flour from 5% to 25%. The onset gelatinization temperature and the value at the peak point of the bread decreased according to the amount of acorn flour added. L-value decreased with the increase of acorn flour contents, but the a- and b- values increased. During the storage period at room temperature, the L, a, and b- value decreased, whereas in the freezer, the L-value decreased except for the bread containing 5~11% acorn flour. In sensory evaluation, color and taste achieved high scores at 18% addition, but low scores at 25% addition. The bitter aftertaste showed low scores according to the addition of acorn flour. The softness and chewiness decreased, but the overall acceptance increased according to the addition of acorn flour except for the bread added with 25% acorn flour. The textural measurements showed that the hardness, springiness, gumminess, and brittleness increased significantly during the storage periods. The cohesiveness, gumminess, and brittleness in room temperature storage decreased with the increase of acorn flour contents. In freezer storage, the addition of acorn flour resulted in the increase of hardness, springiness, gumminess, and brittleness during storage periods. On the other hands, the cohesiveness decreased with the addition of acorn flour. Moreover the addition of acorn flour increased significantly the hardness, gumminess, and brittleness during storage periods. As a result, the bread containing acorn flour showed reasonable textural properties during storage periods.

• 산업식품공학
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• 제15권4호
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• pp.311-317
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• 2011

활성글루텐이 첨가된 쌀 식빵 프리믹스를 5, 25, $35^{\circ}C$의 저장온도에서 4개월 동안 저장하면서 이화학적, 반죽특성, 호화특성 및 제빵특성에 미치는 영향에 대하여 조사하였다. 쌀 식빵 제조 시 활성글루텐의 적정 첨가량은 14-17%로 판단되었다. 쌀 식빵 프리믹스의 pH, 침전가 및 Pelshenke값은 저장기간이 증가함에 따라서 감소하는 경향을 보였으며, 특히 Pelshenke 값은 35$^{\circ}C$ 저장시에 그 수치가 현저히 감소하였다. 쌀 식빵 프리믹스의 수분 함량은 변화가 적었으나, 보수력과 알칼리수 흡수율은 저장온도가 상승함에 따라서 증가하는 경향을 보였다. Mixograph의 peak time과 width at 8.00 min은 저장온도가 상승함에 따라서 유의적으로 증가하는 현상을 보였다. Rapid Visco Analyser에 의한 호화 특성 중 peak viscosity와 setback은 저장 온도가 상승함에 따라서 다소 증가하는 현상을 보였으며, 저장기간이 길어짐으로써 유의적으로 증가하였다. 프리믹스로 제조한 쌀 식빵의 비용적은 저장전에 비해 저장 중 온도가 높아짐에 따라서 그 감소 폭이 컸으며, 쌀 식빵의 경도는 증가하여 쌀가루 전분의 노화가 밀가루에 비해 보다 빠른 속도로 진행되는 것으로 나타났다.

• 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.

• 한국식품조리과학회지
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• 제27권4호
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• pp.1-16
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• 2011

The purpose of this study was to investigate the physicochemical and sensory properties of various breads prepared with purple-fleshed sweet potatoes and their powders. As the amount of purple-fleshed sweet potato and its powder increased, pH of the dough and bread, volume, dough yield, baking loss rate, and fermentation power of the dough decreased, whereas acidity of the bread increased. The lightness and yellowness of the breads decreased significantly, but redness increased with increasing content of purple-fleshed sweet potato and its powder. The textural properties, such as hardness, chewiness, springiness, and brittleness were significantly higher in groups with added purple-fleshed sweet potato and its powder compared to those in the control. The anthocyanin content and DPPH radical scavenging of dough and bread were higher in groups with purple-fleshed sweet potato and its powder than those in the control group. The groups with 5% and 10% purple-fleshed sweet potatoes and their powders had significantly higher scores for overall acceptability as compared to the control group.

• 한국식생활문화학회지
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• 제31권6호
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• pp.605-615
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• 2016

The objective of this study was to prepare acorn bread added with soymilk in order to improve its quality and develop the best possible recipe. The loaf volume, color, texture and sensory evaluation of acorn bread added with soymilk 10~40% were measured during the storage period. The L-value significantly decreased upon addition of 40% soymilk. A-value increased, but b-value decreased. During the storage period, the L- and a- values increased except 2 days at room temperature and 7 days in a freezer, whereas b-value decreased. For textural measurement, hardness, springiness, gumminess and brittleness increased significantly upon addition of soymilk. However cohesiveness decreased for 2 days of storage, whereas gumminess and brittleness for 1 day of storage at room temperature. Freezer storage for 1 day reduced cohesiveness, and gumminess for 4 and 7 days, respectively, and brittleness after all storage periods. The sensory evaluation showed that acorn bread added with soymilk 20% produced the best results in color and taste. The bitter aftertaste increased according to addition of soymilk with lower scores. Softness, chewiness and overall preference decreased significantly. Therefore, 10% soymilk addition got the best scores in aftertaste, softness, chewiness and overall acceptances.