• Title/Summary/Keyword: flour quality

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Quality Characteristics of Bread Added with Oat Flours

  • Lee, Na-Young;Ha, Ki-Young
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.56 no.2
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    • pp.107-112
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    • 2011
  • Oat flour was purchased and investigated for quality characteristics of oat bread. Antioxidant and flour pasting properties of oat flour, and water content, weight, volume, Hunter color value, texture of bread were measured. DPPH radical scavenging capacity (%) of oat extract was 68.49%. Pasting temperature of oat flour ranged between $66.60^{\circ}C$ and $70.93^{\circ}C$. Flour pasting properties of sample added with 10 and 30% oat flour was shown similar results compared with wheat flour. Final viscosity of sample was increased by adding concentration of oat flour (up to 311.65 RVA). Water content (%) of bread was shown increasing trend by adding oat flour. Weight of bread loaf with 100% oat flour was shown higher score than other samples. Volume of loaf by adding oat flour of 10, 30, and 50 % ratio was 550, 450, and 388 mL, respectively. The Hunter color $L^*$ values of bread by adding oat flour was dark compared with wheat bread. Color value of bread added 10% oat flour was similar results with $L^*$ values of bread with wheat flour. The bread added with 20 and 30% oat flours had the higher hardness, gumminess, and chewiness compared with other samples. Cohesiveness of the bread with wheat flour showed higher than that of bread added with oat flour and increased by storage period. The growth of total viable cell was inhibited depending on the concentration of oat flour during storage.

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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Quality Characteristics of Dried Noodle Made with Dioscorea japonica Flour (마가루를 첨가한 국수의 품질 특성)

  • Park Bock-Hee;Cho Hee-Sook
    • Korean journal of food and cookery science
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    • v.22 no.2 s.92
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    • pp.173-180
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    • 2006
  • This study evaluated the quality characteristics of dried noodles made of wheat flour with different concentrations of Dioscorea japonica flour. Cooking quality, mechanical texture properties and viscosity were measured, and sensory evaluation was performed with the prepared noodles. Water binding capacity, solubility and swelling power of the composite Dioscorea japonica flour-wheat flours were higher than those of pure wheat flour. Gelatinization points of the composite Dioscorea japonica flour-wheat flours were increased and initial viscosity at $95^{\circ}C$, viscosity at $95^{\circ}C$ after 15 minutes and maximum viscosity of these composites were decreased, with increasing Dioscorea japonica flour content, as measured by amylograph. With increasing Dioscorea japonica flour content, L and b values were decreased, but a value was increased, for the color values, while weight and volume of the cooked noodles and turbidity of the soup were increased. For the textural characteristics, the addition of Dioscorea japonica flour increased the hardness and decreased the adhesiveness, cohesiveness and springiness. Overall, the noodles made with 10% Dioscorea japonica flour were preferred more than the other noodles, as tested by sensory evaluation.

Characteristics of Micromiling, Farina Milling, and Cooling Quality of Farina Spaghetti from Kansas Hard Red Winter Wheat (켄사스 경질 붉은밀의 소규모 시험 제분 및 페리나 제분 특성과 이들로부터 제조된 스파게티의 조리특성)

  • 김혁일;김창순
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.4
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    • pp.686-697
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    • 1994
  • The hardness of hard red winter (HRW) wheat had an effect on the yield of farina , as it positively correlated with the coarse fraction (over 34W) and negatively correlated with the flour fraction from farina milling. But it did not show any significances on flour milling from the micromilling process. The flour yields was better correlated with the break flour fraction (r=0.730 than with reduction flour (r=0.27). The farina yield was controlled by a fraction over 34W (coarse granule0. Protein was the most important single factor for the quality of cooked farina spaghetti, but not for flour milling or farina milling. On the other hand, hardness was important in the production of farina milling , whereas it did not govern spaghetti cooking quality, Environmental factors affected the quality of cooked spaghetti as much as varieties of HRW wheats. The quality of cooked farina spaghetti generally correlated with the protein in the location composites of wheats. Higher protein content wheats showed better spaghetti cooking quality.

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Comparison of Physicochemical Properties of Korean and Australian Wheat Flours Used to Make Korean Salted Noodles

  • Kim, In-Sook;Binns, Colin;Yun, Hon;Quail, Ken;Lee, Chi-Ho
    • Food Science and Biotechnology
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    • v.16 no.2
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    • pp.275-280
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    • 2007
  • The effect of using Korean wheat flour versus Australian wheat flour on noodle quality as a result of differing physical and chemical properties of the flours was investigated. The results provided appropriate technical information for selection of wheat varieties to produce high quality Korean salted noodles. Noodle quality was quantified based on measurement of the appearance and texture of noodles. When consumer preference tests were conducted, a firmer and more elastic texture was preferred for Korean white salted noodles, however, when appearance was included in the consumer tests, noodles made with Australian wheat were favored over Korean wheats. Korean flour was found to produce firmer and more elastic noodles, whereas Australian flour produced brighter, creamier colored noodles. In flour quality tests, Korean flours were found to have a higher setback viscosity and lower swelling power than Australian flour. Additionally, Korean flours had higher water absorption values. Protein content of flour was an important parameter affecting the firmness of Korean noodles, whereas setback viscosity and swelling power were the major determinants of elasticity. Overall, the important parameters for determination of the quality of Korean salted noodles were high setback viscosity, low swelling power, and high protein content.

Effect of flour and frying temperature on quality of Gaeseong-Juak(doughnut of waxy rice) (밀가루와 튀김온도가 개성주악의 품질에 미치는 영향)

  • 김명애
    • Korean journal of food and cookery science
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    • v.16 no.4
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    • pp.316-320
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    • 2000
  • This study was carried out to standardize the recipe of Gaeseong-Juak. The formation and quality of the Juak were investigated under different treatment conditions. 1. The high ratio of medium flour(20%) in the flour mixture resulted in poor swelling. 2. The flour mixture with 10% strong flour showed higher volume of Gaeseong-Juak compared with the 10% mixture of medium flour, but the score of sensory evaluation was low. 3. The addition of Makkoli in the dough did not give significant difference in the formation of Juak, but the sensory score was low. 4. The deep-frying temperature in the range of 150$\^{C}$ to 170$\^{C}$ allowed the greatest swelling of Gaeseong-Juak, but the highest quality score was obtained at 160$\^{C}$ treatment. Overall, the best preparation condition of Gaeseong-Juak was that the mixture of waxy rice flour with 10% medium flour was kneaded with Makkoli and fried at 160$\^{C}$.

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Quality Properties of Injulmi made with Black Rice (흑미를 첨가한 인절미의 품질 특성에 관한 연구)

  • 조진아;조후종
    • Korean journal of food and cookery science
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    • v.16 no.3
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    • pp.226-231
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    • 2000
  • Injulmi, a kind of traditional Korean sticky rice cakes, was prepared with the mixed flours of waxy and black rices in different ratio(0% to 25% black rice flour), and their quality properties were studied. In the sensory evaluation, the best acceptance was shown in the samples with 15% black rice flour. The scores for hardness, coarseness. chewiness, and flavor were increased as the added amount of black rice flour increased. The moisture content of the samples ranged from 43 to 45%, and it was increased as the added amount of black rice flour increased. In color value, lightness(L value) was 27.43∼65.63. The redness(a value) was -2.01∼4.74, and the yellowness(b value) was -1.40∼4.59. The redness and blueness were increased by the increase of black rice flour. In the texture properties, the increase of added black rice flour increased the hardness, chewiness, and gumminess of Injulml, but decreased the adhesiveness. Based on the results, the optimal recipe for Injulmi added black rice flour was to make with 85% waxy rice flour ant 15% black rice flour.

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Quality characteristics of Korean Wheat flour and Imported Wheat flour (우리밀가루와 수입밀가루의 품질 특성)

  • 정곤
    • The Korean Journal of Community Living Science
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    • v.12 no.1
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    • pp.23-27
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    • 2001
  • This study is designed to find out the physicochemical quality and the morphological features of Korean wheat flour and imported wheat flour with a view to shed light on their difference. In terms of components, Korean wheat flour and imported wheat flour are similar, but the latter turns out to be better than the former when it comes to crude protein, the ratio of water absorption and the power of maintenance. Yet Korean wheat flour turns out to be better than imported wheat flour. In terms of the chromaticity of wheat flour, the latter turns out to be higher than the former when it comes to L value, while the former turns out to be higher than the latter when it comes to a value and b value. In terms of the morphological features of wheat flour, both are in the shape of an oval with starch particles irregularly attached to gluten. And imported wheat flour is getter than Korean wheat flour in terms of the size of particles.

Effect of Barley Flour Addition on Quality Characteristics of Vegetable Pancake (보릿가루의 첨가가 부침개의 품질특성에 미치는 영향)

  • Lee, In-Seon
    • Korean journal of food and cookery science
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    • v.33 no.3
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    • pp.333-341
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    • 2017
  • Purpose: This study investigated the quality characteristics of vegetable pancake prepared with various levels of barley flour. Methods: The pH level and spreadability of the batters as well as the color, texture, and sensory evaluation of the vegetable pancake were analyzed. Results: The results show that spreadability of batter significantly decreased as the substitution amount of barley flour increased (p<0.001). The pH level of the batter significantly decreased as the substitution amount of barley flour increased (p<0.001). Redness and yellowness increased as the substitution amount of barley flour increased. For texture, the sample groups with substituted barley flour showed high characteristics of hardness, gumminess, and chewiness. Principal component analysis showed that the sample group with a high substitution amount of barley flour was characterized by relatively high darkness, roasted grain aroma, bitterness, astringent, and chalkiness. Acceptance test found that the sample group with 15% barley flour received higher acceptance than the sample group with 0% barley flour in terms of color, texture, and overall acceptance. Conclusion: Acceptance test found that the sample group with 15% or 30% of barley flour had significantly higher or similar acceptance attributes than the sample group without barley flour, which suggests the possibility of developing vegetable pancake with barley flour.

Effect of Rice Flour Addition on Quality Properties of Functional Dumpling Skins

  • Jeon, Eun-Raye;Jung, Lan-Hee;Park, Young-Hee
    • Preventive Nutrition and Food Science
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    • v.11 no.2
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    • pp.160-165
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    • 2006
  • This study intends to present basic materials for the development and production of functional dumpling skins by making rice flour-added functional dumpling skins and analyzing the nature of its quality. The moisture content of dumpling skins increased with high addition of rice flour. The color value of dumpling skins changed little with high addition of rice flour. The hardness of dumpling skins showed significant difference in all storage periods with the addition of rice flour. For the sensory properties of dumpling skins with the addition of rice flour, where 25% and 50% rice-flour were added, dumpling skins showed a high score in overall quality for O-day and 7-days of storage. In particular, the 50% rice-flour dumpling skin mixture indicated the highest score. For the correlation between textural and sensory properties according to the addition of rice flour, 0 day-stored dumpling skins showed a positive correlation between smoothness and moistness in the mouth feel and the overall quality (p<0.01) in the sensory properties. Wheat odor (r=0.68) and chewiness (r=0.65) also correlated positively with overall quality (p<0.05). Hardness in textural properties correlated positively with moistness (r=0.69) and the mouth feel (r=0.65) of dumpling skins (p<0.05). Hardness in textural properties correlated positively with adhesiveness (r=0.99) and chewiness (r=0.93, p<0.01). Dumpling skins stored for 7 days showed a positive correlation between hardness, chewiness, and moistness in the mouth feel and overall quality (p<0.05) in the sensory properties. Hardness in textural properties correlated positively with gumminess (r=0.65, p<0.05).