• Title/Summary/Keyword: Wheat Flour

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Quality Attributes of Bread with Soybean Milk Residue-Wheat Flour (비지가루 첨가 식빵의 품질 특성)

  • 신두호;이연화
    • The Korean Journal of Food And Nutrition
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    • v.15 no.4
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    • pp.314-320
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    • 2002
  • When the soybean milk residue flour were added to the respective wheat flour at level of 5%, 10% and 15% the possibility of bread making were studied. Vital gluten was added to the soybean milk residue portion of a 10% composite flour at levels of 3%, 6% and 9% to improve bread quality. And test was baking properties of soybean milk residue composite flour and sensory evaluation of composite breads. Major components of soybean milk residue flour were crude protein, 22.0%; crude lipid, 13.2%; carbohydrate, 54.3%; and dietary fiber, 27.2%. When 5%, 10% and 15% soybean milk residue flour was blended with wheat flour, water absorption, development time and bread weight were increased, and volume of dough and loaf was decreased. But improved bread-making properties by adding gluten. Color of crumb got darker as the percentage of soybean milk residue flour increased, got brighter when gluten was added. Texture of bread increased in chewiness and hardness as the percentage soybean milk residue flour increased but not different in cohesiveness. The use of vital gluten showed influence to springiness, chewiness and hardness. The sensory evaluation showed that 5% soybean milk residue-wheat bread was similar to bread made from wheat flour in overall acceptability. And the bread made by miting gluten were better than 10% soybean milk residue-wheat bread in overall acceptability.

Development of Composite Flours and Their Products Utilizing Domestic Raw Materials -Part V. The Preperation of Noodles made of Composite flours- (국산원료(國産原料)를 활용(活用)한 복합분(複合粉) 및 제품개발(製品開發)에 관한 연구(硏究) -제5보 복합분(複合粉)을 이용(利用)한 면류(麵類)의 제조(製造)-)

  • Kim, Hyong-Soo;Oh, Jung-Suk
    • Korean Journal of Food Science and Technology
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    • v.7 no.4
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    • pp.187-193
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    • 1975
  • A supplemental effect of Undaria Pinnatifida extract on the composite flour prepared from a blend of wheat, barley, sweet potato, potato, and defatted soybean flours was studied in terms of binding properties, cooking test, and sensory analysis. Dry noodle of the composite flour was made by the conventional method and air dried. Instant noodle was prepared in a hot vegetable oil bath after the noodle was made. The standard was made of wheat flour only. 1. The noodle prepared with composite flour (wheat flour : barley flour, 5 : 5) and Undaria Pinnatifida extract (1 or 2%) showed same results of cooking and sensory tests as well as properties of texture as the standard. 2. The mixture of wheat, barley and defatted soybean flour (10%) had a less efficient binding capacity with Undaria Pinnatifida extract. The binding effect was, however, significantly improved with the wheat and barley flour mixture with either sweet potato or potato flour. 3. The instant noodle prepared with the composite flour (either barley, or sweet potato, or potato was mixed with wheat flour up to 70% separately) and hydroxypropyl methyl cellulose (1% as final) showed the higher oil absorption and the sensory results were the same as the standard. Nevertheless, the binding properties and cooking quality were less efficient.

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Analysis of Optimal Mixing Ratios in Tortilla Preparations with Rice and Wheat Flour (Tortilla의 제조를 위한 쌀가루와 밀가루의 최적 혼합비 분석)

  • Han, Gyu-Hong;Yoo, Jin-Hyun
    • The Korean Journal of Food And Nutrition
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    • v.20 no.1
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    • pp.1-8
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    • 2007
  • Tortillas were prepared using rice and wheat flour. The experimental design incorporated thee independent variables(rice, wheat flour and moisture content) producing 14 samples of different proportions of each variable for each tortilla. The following were analysed using Design Expert 6 to unveil the influences of these variables on tensile strength and color(L, a, b). Results indicated that tensile strength increased with increasing rice and wheat flour content, however, decreased with increasing moisture content. Lighteness(L), of the tortilla increased with increased rice content whereas yellowness(b) increased with increased wheat flour content. The model suggests that tensile strength and color(L, a, b) in tortillas are highly correlated(SD Comment - give correlation coefficient and p-value). As well, the numerical optimization method suggests that the ratio of wheat flour to rice flour to moisture content which maximizes the three responses(tensile strenth, L and b) is 18.26 : 33.92 : 39.24%, 28.15 : 25.77 : 37.50%.

Quality Characteristics of Wheat Flours from New Released Iksan370 with Long Spike and Domestic Wheat Cultivars (신육성 다수확 밀 익산370호의 원맥과 밀가루의 품질 특성)

  • Choi, Yong-Seok;Lee, Jae-Kang;Choi, Yong-Hyun;Kim, Young-Hwan;Kang, Chon-Sik;Shin, Malsik
    • Korean journal of food and cookery science
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    • v.31 no.5
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    • pp.551-556
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    • 2015
  • Iksan370 is a long-spike wheat developed by the Rural Development Administration yielding excellent features components such as cold resistance, disease resistance, and viviparous germination. The physicochemical and material properties of the raw wheat and milled flour of Iksan370 were analyzed to derive its appropriate uses. The raw wheat of Iksan370 showed high contents of ash and proteins at 1.71% and 13.7%, respectively. Its test weight of 763.0 g/L was similar to those of other varieties and its 1,000 kernel weight was high at 45.38 g. The milled flour of Iksan370 had an ash content of 0.45%, which corresponds with a class 1 flour, and its protein content is 12.18%, corresponding with strong flour. The damaged starch was 5.41%, which was lower than that of other varieties. The average grain size was $70.67{\mu}m$ and the grain distribution was at the level of a typical hard wheat. In the farinogram, the water absorption was 58.63%, which corresponded to the level of medium flour. The development time was 7.00 minutes, which was significantly lower than those of Jokyung and Keumkang. The degree of softening was 67.00 BU, similar to those of Yunbaek and Baekjoong. Among the physico-chemical characteristics, the high protein content and typical hard wheat grain distribution of Iksan370 were similar to those of strong wheat, usually used for bread making. However, in the farinogram, the dough development time was short and the degree of softening was high. As a result, Iksan370 was expected to have poor breadmaking properties and a small volume of the final bread product due to insufficient dough durability. On the other hand, Iksan370 showed the highest maximum gelatinization viscosity at 864.00 BU. Therefore, Iksan370 is expected to show glutinous texture when used for noodles and its flour appears to be appropriate for frying powders as well.

On the rate of absorption of the sized fabrics (푸새 직물의 흡습률에 관한 1연구)

  • 오화자
    • Journal of the Korean Home Economics Association
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    • v.23 no.1
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    • pp.11-17
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    • 1985
  • This paper aims to examine the variety of the absorption of cotton, T/C and hemp fabrics seperately seperaterly sized by rice, wheat, potato, corn flour and pp.V.A.. Experimental variables occurring in the concentration of sizing agents, the water content of unsized fabrics and an iron temperature show the following results, 1. When fabrics sized, the rate of absorption increases according to the order of rice, corn, pp.V.A., potato, wheat flour for cotton fabrics, of rice, corn, pp.V.A., wheat, potato flour for hemp fabrics and of the rice, pp.V.A., potato, corn, wheat flour for T/C fabrics : rice flour shows an absorption rate highest among all the others mentioned above. 2. To a certain extent, the stronger the concentration of sizing agents, the higher the rate of absorption. 3. The higher fabrics density, the higher absorption rate. 4. The structure and hydrophilic property of the sized fabrics affect the rate of absorption. 5. The fabrics with water content of 20% before sizing it shows the rate of absorption highest. 6. An iron temperature after sizing fabrics shows the rate of absorption highest at the properest at the properest one : $180^{\circ}C$ for cotton, $150^{\circ}C$ for T/C and $200^{\circ}C$ for hemp fabrics.

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Effects of Xylanase on the Baking Properties of Sorghum (Xylanase 첨가에 따른 수수의 제빵 적성 변화)

  • Ahn, Ji Eun;Go, Ji Yeon;Koh, Bong Kyung
    • Korean journal of food and cookery science
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    • v.31 no.1
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    • pp.18-25
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    • 2015
  • This study investigated the baking properties of sorghum with the addition of xylanase or Pentopan, which is a baking additive containing xylanase. The control bread was made with a 30% substitution for wheat flour and the optimum level of enzyme addition was 0.75 mg/g flour for Pentopan and 5 mg/g flour for xylanase. The water binding capacity of wheat flour increased with the addition of sorghum, but decreased with the addition of either xylanase or Pentopan. The resistance of dough increased while extensibility decreased with the addition of sorghum; however, resistance decreased while extensibility increased with the addition of the enzyme. Specific volume of bread decreased significantly with the addition of sorghum. However, the specific volume was significantly recovered with the addition of enzyme. Crumb firmness was higher in the sorghum-added sample, but crumb firmness of the bread decreased with the addition of the enzyme. The crumb firmness of bread with added xylanase decreased significantly in 24 hours. These results demonstrated that adding sorghum with either xylanase or Pentopan that included xylanase increased specific volume and decreased crumb firmness whereas sorghum decreased the quality of fermented bread when added to wheat flour. The firmness rate of fermented bread particularly decreased with the addition of pure xylanase.

A Study on the Water Absorption Velocity of Sized Fabrics (푸새직물의 흡수속도에 관한 일연구)

  • 오화자
    • Journal of the Korean Home Economics Association
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    • v.25 no.2
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    • pp.31-38
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    • 1987
  • This paper aims to examine the velocity of water absorption of cotton, hemp, and T/C fabrics sized by rice, wheat, potato, corn flour and pp.V.A.. Experimental variables such as the concentration of sizing agents, the moisture regain of unsized fabrics and the ironing temperature showed the following results. 1. When the fabrics were sized, the velocity of water absorption increased according to the order of corn, rice, potato, wheat flour and pp.V.A. for cotton fabrics, of corn, potato, rice, wheat flour and pp.V.A. for hemp fabrics, and of corn, wheat, rice, potato flour and pp.V.A. for T/C fabrics; corn flour showed the highest velocity of water absorption and pp.V.A. did the lowest among all the others mentioned above. 2. The higher fabric density, the higher velocity of water absorption. The finer the count of fabric yarn, the higher velocity of water absorption. 3. The material of sized fabrics most affected the velocity of water absorption than other factors of those. 4. To a certain extent, the higher the concentration of sizing agent, the higher the velocity of water absorption. 5. The fabrics with moisture regain of 20% before sizing showed the highest velocity of water absorption. 6. The ironing temperature after sizing fabrics mentioned below showed the highest velocity of water absorption; 180$^{\circ}C$ for cotton, 200$^{\circ}C$ for hemp, and 160$^{\circ}C$ for T/C fabrics.

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Flour Quality Characteristics of Korean Waxy Wheat Lines

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee;Ha, Yong-Woong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.46 no.5
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    • pp.360-366
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    • 2001
  • Flour physicochemical properties of six Korean waxy wheat lines and their parental plants, including Kanto 107 and BaiHuo, which have partially null in GBSS (granule bound starch synthase), were evaluated in this study. The very low amylose content (3.20%) of Korean waxy wheat lines, which had been influenced by the null in all three GBSS isoforms encoded by three Wx loci, could result in the higher starch swelling power (25.15%), lower starch and flour pasting temperature (61.37$^{\circ}C$; 65.85$^{\circ}C$), and higher starch pasting peak viscosity and breakdown (246.60 RVU; 161.50 RVU) than those of their parental plants. In addition to high swelling and pasting properties, Korean waxy wheat lines had the higher protein content (12.80%), alkaline water retention capacity (97.39%), SDS sedimentation volume (80.33 $m\ell$) and damaged starch content (4.35 %) than those of their parental plants.

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Physicochemical Studies on the Hard and Soft Wheats Flours (경질(硬質) 및 연질(軟質) 밀가루의 이화학적(理化學的) 성질(性質) 연구(硏究))

  • Kim, Sung-Kih
    • Korean Journal of Food Science and Technology
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    • v.11 no.1
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    • pp.13-17
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    • 1979
  • The physicochemical properties of wheat flours were investigated for hard wheat (Bara and Kameriya varieties), semi-hard wheat (Snisen variety) and soft wheat (Ume variety). There were no sigificant differences in the proximate chemical compositions of the tested wheat fluors; however, the protein contents of them were 12.18 to 8.40 % for the hard wheat flours and 6.81 % for soft wheat flour, and gluten contents were 11.77 to 8.38 % for the hard type flours and 5.53 % for soft flour. The soft wheat flour had higher whiteness, whereas the hard wheat flours showed higher starch damage values and higher flour-water absorption than the soft wheat flour. In farinograph data, the hard wheat flours had better development time, stability and valorimeter value of doughs. There were significant differences in the extensigraph data among the tested flours, i,e, resistance to extention and the area with planimeter of doughs increased with the time and their extensibility decreased. The Bara and Kameriya wheat flours had lower maximum visicosity of amylograph than Suisen and Ume wheat flours.

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Dried Noodle Making of Composite Flours Utilizing Buckwheat and Wheat Flour (메밀가루와 밀가루 복합분의 건면 제조시험)

  • Kim, Yong-Soon;Kim, Hyong-Soo
    • Journal of Nutrition and Health
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    • v.16 no.3
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    • pp.146-153
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    • 1983
  • In this study, buckwheat four was classified by the order of extraction from the inmost layer to the outmost layer, and was designated as $B_1,\;B_2,\;B_3,$ and the mixed flour of $B_1,\;B_2,\;B_3$ (1:1:1) was named $B_0$. To improve the dried noodle-making properties, various levels of strong wheat flour and additives such as sodium alginate (SA) and xanthan gum(XG) were added to buckwheat. 1) The buckwheat $B_2$ and $B_3$ flours contained much higher amounts of crude ash, protein and fat than the $B_1$ flour. 2) Buckwheat $B_3$ flour demonstrated lower maxium viscosity value by amylograph than the $B_1$ flour, but it demonstrated 2 times higher maximum viscosity value than wheat flour. Buckwheat $B_1$ flour demonstrated 4-5 times higher maximum viscosity value than wheat flour. Addition of SA and XG increased the viscosity of the flour mixtures. 3) It was possible to make dried noodles from the composite flour of (buckwheat 40 %+wheat 60 %). The lesser the quantity of buckwheat flour was, the better the kneading property of mixed flour was. 4) SA and XG, which were added at the level of 1.0-1.5%, significantly improved dough making properties and the cooking quality of the noodles.

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