• Title/Summary/Keyword: loaf volume

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Quality Characteristics of Bread added with Powder and Concentrate of Prunus mume (매실분말 및 매실농축액을 첨가한 식빵의 품질특성)

  • Park, Woo-Po;Cho, Sung-Hwan;Lee, Seung-Chul;Kim, Sung-Yong
    • Food Science and Preservation
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    • v.15 no.5
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    • pp.682-686
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    • 2008
  • Different amounts of powder and concentrate (0.5%, 1.0% and 2.0%) of Prunus mume were added to bread and the quality characteristics were evaluated. Mixed flour with powder (PP) and concentrate (CP) of Prunus mume showed a lower gelatinization temperature and higher maximum viscosity than control. As the proportion of PP and CP in making bread were increased, lower specific loaf volume, and higher hardness were revealed. Sample with 0.5% CP and control showed the highest specific loaf volume, and was 5.4. Treatment with 2.0% PP was $1,060,617\;dyne/cm^2$ in hardness, and was about 5 times higher than control. The L (lightness) value of samples with PP and CP was lower than control. Sample with 0.5% CP showed the highest score in color and taste, and samples with 0.5% PP, 0.5% CP and control was not significantly different in sensory evaluation. Based on loaf volume, hardness, color value and the sensory evaluation, treatment above 1.0% PP and CP is undesirable in making bread.

The Optimized Formulas of Rye Bread on the Sensory Properties using RSM (RSM을 적용한 관능 특성에 따른 Rye Bread의 최적 Formulas에 대한 연구)

  • Kwon Kyung-Soohn
    • The Korean Journal of Food And Nutrition
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    • v.17 no.3
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    • pp.278-285
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    • 2004
  • The effects of water, rye flour and vital gluten on the sensory properties of bread were studied by response surface methodology and sensory evaluations. A response surface model was used to evaluate the effects observed and to determine the optimum variations for rye bread. The study included 12 combinations of the following independent variables: Water(57, 62, 67%), Rye flour(0, 10, 30, 50%), and Vital gluten(0, 1, 3, 5%). Bread quality attributes determined were specific volume, color, texture, appearance, taste, chewiness, moisture, overall. Rye bread specific volume, sensory evaluation values and Instrumental testing results were significantly affected by variety (water, rye flour and vital gluten). Rye bread with a high specific volume was produced using water 67%, rye flour 10% and vital gluten 3%. Whereas, rye breads with a high overall sensory evaluation were water 62 %, rye flour 10 % and vital gluten 5%. And Specific volume predicted and overall preference also was shown high. It was shown that the experimental design used provided information about the rye bread of variation of water, rye flour and vital gluten and can be a useful supplement to standardized and optimized formulas in rye bread making. The results suggest that water, rye flour, vital gluten can be combined in rye bread making at various levels, contributing to optimize the functional properties of rye bread. These result represents that breads loaf volume related to directly consumer preference.

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

  • Kim, Young-Ho
    • The Korean Journal of Food And Nutrition
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    • v.32 no.2
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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.

Preparation of High-Fiber Bread with Soybean Curd Residue and Makkolli(Rice Wine) Residue (비지와 막걸리박을 이용한 고식이섬유 빵의 제조)

  • 조미경;이원종
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.4
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    • pp.632-636
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    • 1996
  • Soybean and residue contained 59.0% dietary fiber and makkolli residue contained 26.0% dietary fiber. The breads made from flour consisting of 90% wheat flour and 10% fiber materials were compared with that made with 100% wheat flour in terms of baking performance and consumer acceptance. Replacement of 10% wheat flour by soybean curd residue or makkolli residue increased water absorption and loaf weigh, but reduced loaf volume. Sensory panels could not accept favorably the bread made with the soybean curd residue or makkolli residue in flour replacement at 10% level. The protein content was increased from 13.5% to 15.4% in bread containing 10% soybean curd residue and to 16.4% in bread containing makkolli residue. The dietray fiber contents of the bread with soybean curd residue and the bread with makkolli residue were three-fold and two-fold higher than the bread with flour.

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Effect of Oyster Mushroom (Pleurotus ostreatus) Powder on Bread Quality

  • Hong, Ga-Hyung;Kim, Ygoung-Soo;Song, Geun-Seoup
    • Preventive Nutrition and Food Science
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    • v.10 no.3
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    • pp.214-218
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    • 2005
  • Breads were prepared from wheat flour supplemented with oyster mushroom (Pleurotus ostreatus) powder, and effects of the supplementation of oyster mushroom powder on dough rheology and bread quality were examined. The initial pasting temperature in viscoamylograph increased, but peak and final viscosities decreased with the increased amount of oyster mushroom powder. The gradual increase of water absorption, dough development time and mixing tolerance index, and decrease of dough stability with the increased amount of oyster mushroom powder were obtained by farinographs. The supplementation of oyster mushroom powder had an effect on the bread making, resulting in an increase of loaf weight and a decrease of loaf volume. The rough and coarse crumb texture with dark color was observed with the increased amount of oyster mushroom powder. The firmness of bread crumb containing oyster mushroom powder was increased during storage periods. Sensory evaluation revealed that the addition of $1\%$ oyster mushroom powder could be supplemented to make an acceptable quality of bread.

The Effects of Oligosaccharides on the Quality Characteristics of Rice Flour Sponge Cakes (올리고당이 쌀스폰지케이크의 특성에 미치는 영향)

  • Ju, Jung-Eun;Byon, Kwang-Eui;Lee, Kyong-Ae
    • Korean journal of food and cookery science
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    • v.23 no.4 s.100
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    • pp.530-536
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    • 2007
  • In this study, rice flour sponge cakes were prepared by replacing 50% of the sucrose with oligosaccharides. Isomaltooligosaccharide and fructooligosaccharide were used as the oligosaccharides. The effects of oligosaccharides on the physical, textural and sensory properties of the cakes were then examined. The oligosaccharides increased batter viscosity and decreased batter specific gravity and baking loss. The moisture content, specific loaf volume and loaf volume index of the cake increased by replacing 50% of the sucrose with oligosaccharides. Internal and exterior color determinations showed that the 'L' value of the sponge cake with oligosaccharides was lower than that of the control, indicating a darker crust and crumb with the oligosaccharide substitution. Decreases in textual hardness, chewiness, and brittleness occurred with the oligosaccharides. Sensory panels perceived that the oilgosaccharide darkened the crust of the rice flour sponge cake and the panelists rated the cakes with the oilgosaccharide substitutions as sweeter, softer and more moist. The rice flour sponge cakes with isomaltooligosaccharides had a significantly higher acceptability then the others.

Quality Characteristics of Par Baked Baguette Containing Hydrocolloids according to Frozen Periods (Hydrocolloids의 첨가가 냉동기간에 따른 Par Baked 바게트 품질 특성에 미치는 영향)

  • Cho, Hyun;Lee, Jeong-Hoon;Lee, Chi-Ho;Lee, Si-Kyung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.10
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    • pp.1488-1492
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    • 2011
  • This study was carried out to evaluate the effects of hydrocolloids such as arabic gum, carboxymethylcellulose (CMC), and pectin on the quality and sensory properties of frozen-par baked baguettes according to frozen storage periods. Exactly 0.2 and 0.5% hydrocolloids were added to the baguettes based on flour. Specific loaf volume, hardness, moisture content, and sensory evaluation of baguettes were analyzed. Specific loaf volume of baguette with added 0.2% CMC was the highest after 3 weeks of storage at $-18^{\circ}C$. Moisture contents were not significantly different between control and experimental baguettes. In terms of hardness, baguette with added 0.2% pectin had the lowest value after 3 weeks of storage at $-18^{\circ}C$. In sensory evaluation, baguette with 0.2% pectin among hydrocolloids had the highest score for external and internal properties, as well as total acceptance. Consequently, 0.2% pectin increased the quality of baguette.

Quality Characteristics of White Pan Bread with Olive Oil (올리브유를 첨가한 식빵의 품질특성에 관한 연구)

  • Lee, Sun-Heui;Yun, Mi-Suk;Lee, Jung-Hoon;Min, Sang-Gi;Lee, Si-Kyung
    • Applied Biological Chemistry
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    • v.48 no.3
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    • pp.217-221
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    • 2005
  • This study was carried out to investigate the quality characteristics of white pan breads made with shortening and with olive oil by measuring moisture content, baking loss, specific loaf volume and rheological properties. Moisture contents of the white pan breads made with 4% and 6% olive oil were about 39.8% while those made with 4% shortening were $38.68{\pm}0.41%$. There were no signigicant differences in baking loss between the white pan bread made with 4% shortening, and those made with 4% and 6% olive oil. The specific loaf volume of the white pan bread made with 4% olive oil was 4.08 ml/g and the result showed lower value than that of the white pan bread made with 4% shortening. In terms of hardness and springness, there were no significant differences according to the sort and the amount of lipids, however white pan bread made without oil was the greatest in hardness.

칼슘락테이트가 반죽발효와 빵의 품질 및 저장성에 미치는 영향

  • 이예경;이명예;김순동
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 2003.04a
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    • pp.121.2-122
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    • 2003
  • 다슬기분말(PSB)과 그 회분(ASB)으로 제조한 칼슘락테이트(PCaL 및 ACaL)를 0.5%씩 첨가한 반죽의 발효와 빵의 품질 및 저장성에 미치는 영향을 조사하였다. 반죽의 pH는 4.85~4.98로 ACaL.PCaL.대조군의 순으로 나타났다. 반죽의 부피와 빵의 loaf volume index는 대조군이 높았고 ACaL 첨가군이 낮았으며, pH를 5.50으로 조정하여 제조한 반죽의 부피와 빵의 loaf volume은 대조군과 큰 차이를 보이지 않았다. PCaL 및 ACaL을 첨가한 빵의 Ca함량은 29.4~29.7 mg/100 g-f.w로 대조군의 13.0 mg/100 g-f.w에 비하여 높았으며, 첨가군의 미량 무기질로 Mg, Fe, Zn이 0.03~0.98 mg/100 g-f.w 범위로 검출되었다. 빵의 L$^{*}$ 값은 대조군과 실험군의 유의적인 차이가 없었으며, a*값, b*값은 PCaL 첨가군이 가장 높아 황갈색을 띄었다. 빵의 hardness, gumminess는 대조군$^{\circ}C$ 실온에 두면서 저장한 결과 대조군은 3일째부터, ACaL 첨가군은 5일째부터, PCaL 첨가군은 6일째부터 곰팡이가 번식하였다.

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Effect of Lactic Acid Bacteria notated to Kimchi Fermentation on the Quality of Bread (김치숙성 관련 젖산균이 식빵의 품질에 미치는 영향)

  • 이예경;박인경;김순동
    • Journal of the East Asian Society of Dietary Life
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    • v.11 no.5
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    • pp.379-385
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    • 2001
  • The effects of lactic acid bacteria from kimchi fermentation, specifically Lactobacillus plantarum(LP) and Leuconostoc mesenteroides (LM) on the quality of the bread product was investigated. The two types of bacteria were cultivated in the sterilized radish juice used for kimchi fermentation. The concentration of bacteria was measured at 3.0$\times$10$^{9}$ ~3.3$\times$10$^{9}$ /mL. The bacteria were added at the ratios of 5% and 10% to a mixture with wheat flour before subsequent dough fermentation. An LM+LP treatment to the mixture was also made at 5% of LP and 5% of LM. The measured pH in the dough with LM+LP was the lowest among all of treatments. The products of 5% LM treatment showed the shortest fermentation time. Loaf production by volume was the highest from the 10% LM treatment. The % of moisture loss of the bread during the shelf-storage was less when treated with lactic acid bacteria than when left untreated. The least moisture loss was observed when the bread was treated with the LM+LP mixture. Hardness of the bread also decreased with the presence of lactic acid bacteria. The order of hardness was: control > 5% LP > LM+LP > 5% LM > 17% LM > 10% LP. Staling degree of the bread when treated with lactic acid bacteria was lower than that of the control. The least staling occurred when treated with LM 10% and LP 10%.

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