• Title/Summary/Keyword: bread properties

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Rheological Properties of Dough and Qualities of Functional Bread Flour Added with Chungpesagan-tang Extracts & Re-Procurement Attitude (기능성 빵의 반죽 특성 및 재구매 의도 연구 - 한약재 청폐사간탕 첨가 -)

  • Kang, Soak-Woo;Lee, Byoung-Gu
    • Culinary science and hospitality research
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    • v.10 no.4
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    • pp.165-177
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    • 2004
  • This study was accomplished to examine possibilities to apply Korean medicine to breamaking. Extracts of Chungpesagan-tang prepared by the prescription of Korean medicine were used for baking, instead of water among ingredients of baking. Effects of addition of extracts of Chungpesagan-tang on various baking properties were analyzed during the process of baking. Changes in pH values and volumes of doughs during fermentation and pH values of bread showed no differences among samples. Loaf volumes and specific loaf volumes were increased somewhat on addition. The values of cohesiveness, springness, gumminess and brittleness of breads, which were measured by rheometer, were increased on addition while those of hardness were decreased a little. Lightness values of sections of loaves were decreased on addition, but their color differences were increased largely on color difference meter. There were nearly little differences among samples in all the values of parameters of external and internal characteristics and eating qualities of breads by sensory evaluation. Re-purchasing attitude of pullman bread added with Chungpesagan-tang had a high in the gender and age.

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Effect of Fermented Rice Bran on Rheological Properties of White Bread Dough (발효쌀겨의 첨가에 따른 식빵 반죽의 물리적 특성)

  • Park, Hyun-Sil;Han, Gi-Dong
    • Journal of the Korean Society of Food Culture
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    • v.25 no.1
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    • pp.82-90
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    • 2010
  • In this study, the rheological properties of doughs blended with 5% to 20% fermented rice bran (FRB) were investigated using farinographs, amylographs, extensographs, and SEM. In the farinograph analysis, the water absorption decreased and the replacement ratio of FRB increased over the time of development of the dough. The stability time of the dough was shortened, and the degree of softening decreased with added volume of FRB. The amylograph analysis showed that the temperature at the beginning of gelatinization showed a tendency to increase with increasing replacement ratio of FRB, but the gelatinization temperature showed no significant difference between the FRB-added groups and control group. The extensograph analysis showed that when the replacement ratio of FRB was over 10%, the extension of the dough decreased while the resistance was increased. In the SEM analysis, the added dough with less than 10% FRB had similar characteristics in gluten matrix and gas bubbles to those of the control of wheat flour alone. It was concluded that an added FRB volume of below 10% is most suitable for bread making.

A Study on the Properties of Sourdough Starters using Korean Wheat (우리밀을 이용한 Sourdough Starter 특성에 관한 연구)

  • An, Hye-Lyung;Heo, Soo-Jin;Lee, Kwang-Suck
    • Culinary science and hospitality research
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    • v.15 no.4
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    • pp.37-46
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    • 2009
  • The purpose of this study is to investigate if Korean wheat flour(KWF) can be used a sourdough ingredient. Gluten contents, pH levels, TTA levels, fermentation rates, mixograph, crumbScan and sensory evaluation were analyzed. The pH levels of sourdough starters ranged from 4.0 to 4.5 throughout all kinds of KWF, and they proved to be available as a sourdough starter. KWF 5 and KWF 6 showed the higher fineness and elongation of crumb grain than any other kind of Korean wheat flour, which were considered appropriate for making bread. KWF 6 scored good mark in the sensory evaluation for texture of crumb and color of crust among all kinds of KWF. In conclusion, although the sourdough bread with sourdough starter SF of bread flour showed the best result in the evaluation, KWF 6 was considered as a good sourdough starter since the result was shown better than CON.

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Effects of RS-3 type resistant starches on breadmaking and quality of white pan bread (RS-3형태의 저항전분 첨가가 제빵 및 빵의 품질에 미치는 영향)

  • 송지영;이신경;신말식
    • Korean journal of food and cookery science
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    • v.16 no.2
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    • pp.188-194
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    • 2000
  • Effects of native and RS-3 type resistant starches prepared from autoclaved-cooled amylomaize VII(AVII) and normal maize starches(NMS) on the rheological and baking properties of wheat flour dough and quality of breads were investigated. In farinogram, water absorption and dough development time were increased, but stability was reduced by the addition of RS. The addition of native starches or resistant starch made from AVII to wheat flour improved the total volume and specific loaf volume of bread compared with the control(no addition), but the addition of NMS-RS reduced those. During the storage of bread at room temperature, the moisture content of control was decreased but those of native starch- or RS-added breads remained constantly. AVII-RS- or NMS-RS-added bread was evaluated to have good overall acceptability compared with control by elementary school students. The addition of enzyme-resistant starch to bread regardless of botanical sources of starch not only improved the overall acceptability and nutritional benefits but also improved the sensory acceptability.

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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.

Development of Yeast Leavened Pan Bread Using Commercial Doenjang(Korean Soybean Paste): 3. The Effects of Protein Dispersibility of Doenjang Powders and Soy Flours on the Gluten Rheology and Bread Quality Characteristics (시판 된장을 이용한 식빵 제조 : 3. 된장과 대두분의 단백질분산성이 글루텐물성과 식빵의 품질특성에 미치는 효과)

  • 오현주;김창순
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.6
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    • pp.1043-1048
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    • 2004
  • This study was carried out to investigate the effect of soy protein dispersibility on the bread making properties when Doenjang powders (DP) were added to the bread formula at the levels of 2.5 or 5.0%, comparing with full fat (FSF) or defatted (DSF) soy flours which contain same protein contents as those of DP. Protein dispersibility indices (PDI) for DP, FSF, DSF and strong wheat flour were 57.1, 7.3, 10.8 and 32.8%, respectively. Addition of DP decreased significantly the resistance to extensibility of wet gluten and increased its extensibility. However, FSF and DSF showed different changes in gluten rheology due to their PDI. In correlation coefficient values, PDI affected positively both gluten extensibility (r=0.98, p<0.01) and ovenspring (r=0.88, p<0.05) resulting in loaf volume and texture improvement of bread with addition of DP.

Rheological Properties of Dough and Quality Characteristics of Bread Added with Pumpkin Powder (단호박 분말을 첨가한 반죽의 물성 및 빵의 품질특성)

  • Bae, Jong-Ho;Woo, Hi-Seob;Jung, In-Chang
    • Journal of the Korean Society of Food Culture
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    • v.21 no.3
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    • pp.311-318
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    • 2006
  • This study aims to investigate the quality characteristics of breads with the addition of sweet pumpkin powder. Farinogram showed that the absorption rate of the dough decreased, the development time and stability became shortened, and the degree of attenuation tended to be grown along with increasing the amount of pumpkin powder. From the amylogram, it was found that the gelatinization starting temperature and the maximum viscosity of pumpkin powder added dough seemed to be decreased as the amount of pumpkin powder was increased. Extensogram showed that there was a decrease in the degree of extension of the dough added with increasing the amount of pumpkin powder, while an increase in the degree of resistance and resistance/extensibility. The lightness (L value) and redness (a value) of bread was found to be decreased with increasing the amount of pumpkin powder, while the yellowness (b value) increased. In terms of the dough texture, for which the hardness, cohesiveness and gumminess of the dough were measured, there were no significant differences between groups, while the dough added with 8.0% pumpkin powder showed a significant decrease in the elasticity. The results of sensory evaluation showed that the highest score of color (p<0.05) and taste (p<0.05) were obtained from the bread added with 6.0% and 8.0% pumpkin powder, while the highest score of texture in control and 3.0% pumpkin bread. In addition, the highest score of flavor (p<0.05) and overall acceptance (p<0.05) were observed in bread added with 6.0% pumpkin powder. Upon the results of this study, it was assumed that the development of food products using pumpkin are prospective in response to health-oriented consumers.

Baking Properties of Yeast Breads Containing Various Combinations of Job's-tears Flour and Wheat Flour (율무쌀가루 혼합빵의 제빵 특성 비교)

  • 김정숙;박신인
    • Journal of Food Hygiene and Safety
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    • v.14 no.1
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    • pp.17-21
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    • 1999
  • The baking property, chemical composition, instrumental characteristics and sensory quality of yeast breads containing various mixing percentage of Job's-tears flour with wheat flour were studied. The loaf volume and baking quality of the yeast bread made from mixing of 30% Job's-tears flour were similar to those of wheat flour bread. The contents of crude protein, crude fat, and crude ash in Job's-tears flour breads were much higher than those of wheat flour brad. Instrumental rheological characteristics of the yeast breads were measured with a Texture Analyzer. As the addition level of Job's-tears flours increased, hardness of the yeast breads increased but fracturability, adhesiveness, springness, cohesiveness, gumminess, chewiness and resilience decreased. The results of sensory evaluation revealed that Job's-tears flour was added to wheat flour at a replacement level of 10% without a large adverse effect on flavor, taste, mouthfeel and aftertaste.

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Preparation and Characterization of Physicochemical and Sensory Properties of Bread Enriched with Two Types of Wild Grape Extract (제조방법이 다른 두 종류의 머루즙 첨가가 빵의 이화학적 및 관능적 특성에 미치는 영향)

  • Lee, Byung-Yong;Lee, Malp-Eum;O, Jin-Hwan;Kim, Eun-Cho;Surh, Jeong-Hee
    • Korean journal of food and cookery science
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    • v.26 no.5
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    • pp.636-648
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    • 2010
  • Two types of wild grape extracts(WGE) prepared by different methods were added into butter-top bread at different concentrations(0, 5, 10, 15, 20% of water). Then, the resulting breads were analyzed for their physicochemical and sensory properties in order to identify whether or not the WGE-enriched breads were comparable to control bread in terms of qualities and preferences. Wild grape sugar mixture(WGS), which was prepared by osmotic dehydration of wild grape fruits with the same amounts of sugar, presented significantly lower moisture content and titratable acidity as well as higher pH and sugar content compared to wild grape juice(WGJ), which was produced by boiling the fruits in a vacuum jar and squeezing. The pH of the doughs and breads containing WGE tended to decrease with increasing amounts of WGE, and this phenomenon was more appreciable in those containing WGJ than WGS. This was presumably due to the higher contents of tartaric acid in WGJ. For both types of extracts, hardness, gumminess, and chewiness of the doughs decreased with the addition of WGE, nevertheless, which properties were not remained in the resulting breads. This could be partially attributed to the relatively high degree of baking loss and lower pH of the WGE-enriched breads than those of control bread. Contrary to the mechanical analyses, the sensory properties of the breads were dependent on the WGE type. That is, WGJ-enriched bread showed lower consistency and moistness than control bread, which consequently led to relatively lower overall acceptability. However, WGS addition did not adversely affect the sensory properties of the bread. In particular, addition of 5% WGS somewhat improved the physical and sensory qualities of the bread. Thus, WGE-enriched bread could be produced without loss of bread quality when prepared with 5% WGS.

The effects of pomegranate peel added bread on anthropometric measurements, metabolic and oxidative parameters in individuals with type 2 diabetes: a double-blind, randomized, placebo-controlled study

  • Ozlem Ozpak Akkus;Ugurcan Metin;Zeynep Camlik
    • Nutrition Research and Practice
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    • v.17 no.4
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    • pp.698-716
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    • 2023
  • BACKGROUND/OBJECTIVES: The aim of this study was to evaluate the sensory properties of antioxidant-rich bread made by adding pomegranate peels and their effects on anthropometric measurements and metabolic and oxidative parameters of individuals with type 2 diabetes after consumption. SUBJECTS/METHODS: This randomized, double-blind, placebo-controlled study was conducted with 22 individuals aged between 19 and 64 years who had been diagnosed with type 2 diabetes for at least 5 years, used only metformin, did not lose more than 10% of their body weight in the last 6 months, and had a body mass index of ≥ 25.0 kg/m2. While the study group (n = 11) consumed bread containing 500 mg pomegranate peel daily for 8 wk, the control group (n = 11) consumed standard bread. Anthropometric measurements and metabolic and oxidative parameters of individuals were evaluated at the beginning and end of the study. RESULTS: Decreases were detected in the waist circumference, waist/hip and waist/height ratios, body fat percentages, blood pressure, and serum insulin, triglyceride, and total cholesterol levels in the individuals in the treatment group, compared with those in the control group (P < 0.05). CONCLUSIONS: Pomegranate peel consumption by individuals with type 2 diabetes may have positive effects on anthropometric measurements and glycemic and lipid parameters.