• 한국식품조리과학회지
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• 제21권5호
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• pp.733-741
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• 2005

흰찰쌀보리가루를 이용한 sourdough의 물리 화학적 특성, 발효 양상 및 물성 등의 반죽특성과 이의 제빵성을 조사하였다. L. plantarum과 L. Brevis 및 이의 혼합처리로써 보리가루를 발효시킨 결과 pH, 총당 및 환원당 등은 감소하였고 젖산균수, 산도는 증가하였으며, 젖산균에 따라 환원당을 제외하고 유의적인 차이가 없었다. 보리 sourdough의 젖산균수는 각 처리구 모두 발효 후 증가하였으나 효모는 감소하였고 젖산균에 따라 이화학적 특성에 차이가 있었다. 특히 L. plantarum을 처리한 보리 sourdough는 반죽의 형성시간, 안정도 및 탄성 등에서 물성개량제를 활용한 보리가루 첨가 대조구에 비해 양호하였고 발효진행속도는 느리나 가스발생량, 가스보유율도 가장 높았다. 또한 보리 sourdough 빵의 pH는 발효하지 않은 빵에 비해 낮았고 수분 및 수분 활성도는 증가하였으며, 필연적으로 L. plantarum를 처리한 보리 sourdough빵의 부피, 경도, 탄성, 관능적 특성 등의 제빵특성에 있어서도 물성개량제를 첨가한 보리가루 첨가 대조구에 비해 우수하였고 이는 빵 내부 조직의 protein-starch matrix의 미세구조에서도 확인되었다.

• 한국식품조리과학회지
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• 제31권3호
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• pp.264-279
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• 2015

The principal objective of this study was to evaluate the effects of the addition of sourdough to various grain flours in bread, specifically, in regards to the physicochemical characteristics of bread dough, sensory evaluation, and bread storage. As the incubation time of sourdough increased, the total titratable acidity increased. Viable yeast counts of sourdough increased consistently until the third day, while lactic acid bacteria counts increased until the second day. The weight of breads containing sourdough made with rye flour, strong flour, and Korean wheat flour were higher than that of the control. However, the height, volume, and specific volume of control were higher than those of the groups with sourdough made with various grain flours. The pH of breads containing sourdough was lower than that of the control, while the total titratable acidity and moisture content were higher than those of the control. In analyzing the visible mold colony during the five days of storage at $30^{\circ}C$, mold growth in breads containing sourdough made of Korean wheat flour, barely flour, and rye flour was retarded. In the color measurement, the L values of the control and bread containing sourdough made with barley flour were higher than that of the other groups after five days. The a value of bread containing sourdough made of rye flour was higher, and the b values of breads containing sourdough made of Korean wheat flour, barley flour and rye flour were higher than those of the other groups after five days. The hardness of breads containing sourdough increased as storage time increased, where as breads containing sourdough made of Korean wheat flour, Korean whole wheat flour, and rye flour revealed no significant differences with control group. Sensory evaluation scores in terms of after swallowing, taste, and overall preference of bread containing sourdough made of Korean wheat flour was higher than those of the control group.

• 한국식품조리과학회지
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• 제16권4호
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• pp.358-362
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• 2000

1. 보리에서 분리한 균주는 Gram 양성의 구균으로 미생물 동정기를 이용하여 동정해 본 결과 Enterococcus mundtii와 89%의 상동성을 보여 이 균주는 Enterococcus 속으로 동정되었다. 2. 초기 pH는 모두 5.5였으며 시간이 경과함에 따라 가장 먼저 pH가 떨어지기 시작한 것은 Lactobacillus sanfrancisco이였으며 다음으로 Enterococcus mundtii와 Lactobacillus plantarum의 순이였다. pH 4.5까지 떨어지는데 걸리는 시간도 Lactobacillus sanfrancisco이 8시간 10분으로 가장 짧았으며 Enterococcus mundtii는 9시간 30분이였으며 Lactobacillus plantarum은 9시간 50분의 순이었다. 동일한 pH에서 산도는 Lactobacillus sanfrancisco가 가장 산도가 높았으며 Entercoccus mundtii, Lactobacillus plantarum의 순이었다. 3. 대조군에 비해 균주가 혼합된 식빵 3개 모두 부피가 커졌으며 이중 Lactobacillus sanfrancisco가 가장 부피가 컸으며 대조군에 비해 11%정도 부피가 증가하였다. 부피를 무게로 나눈 용적비도 부피와 같은 경향을 보였다. 식빵의 높이는 Lactobacillus sanfrancisco와 Enterococcus mundtii이 가장 컸고 다음이 Lactobacillus plantarum, 대조군의 순이었다. 4. 96시간 경과 시 대조군에만 곰팡이가 발견되었고 다른 군에서는 144시간 이후에도 곰팡이가 발견되지 않았다. 경도는 시간경과에 따라 지속적으로 증가하였으며 경도가 가장 낮은 Lactobacillus sanfrancisco와 다음으로 낮은 Enterococcus mundtii의 경우 초기에는 경도 변화가 별로 없었다가 48시간 경과 시 경도가 증가하였다.

• 한국식생활문화학회지
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• 제16권4호
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• pp.361-370
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• 2001

To investigate the effect of sourdough on the characteristics of quality of barley bread, sourdough starter with Lactobacillus plantarum, Lactobacillus sanfrancisco and Enterococcus sp. were added to baking after 48 hours incubation at $37^{\circ}C$. 1. The pH of bread using Lactobacillus sanfrancisco starter was the lowest among tested starters. while the titratable acidity(TTA) of the strain was the highest, followed by Enterococcus sp.. 2. In bread, moisture contents of control were 38%. It was decreased during 6 days. The moisture contents of bread using Lactobacillus sanfrancisco starter were the highest among tested starters, followed by Enterococcus sp.. 3. Oneset temperature$(T_o)$, peak temperature$(T_p)$ and enthalphy $({\Delta}H)$ were increased during storage of 6 days. The enthalphy of bread using Lactobacillus sanfrancisco starter was the lowest among tested starters, followed by Enterococcus sp..

• 한국식생활문화학회지
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• 제16권4호
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• pp.354-360
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• 2001

A Lactic acid bacterium for barley bread was isolated from barley powder and was identified as Enterococcus sp. It was used as a starter for barley bread and quality of bread was compared with the bread prepared by conventional starter 1. The pH of bread making process using Lactobacillus sanfrancisco starter was the lowest among tested starters. while the titratable acidity(TTA) of the strain was the highest, followed by Enterococcus sp.. 2. In valorimeter value(v/v), control was 70, but dough using all starter was 60. The peak time and stability of dough using Lactobacillus sanfrancisco were the highest among tested starters. 3. Extensibility of dough using Enterococcus sp. was the highest among tested starters, followed by Lactobacillus sanfrancisco. Proper extensibility and maximum resistance were observed in Lactobacillus sanfrancisco.