• Title/Summary/Keyword: bread making

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Development of White Bread Using Fermented Wild Grape Sourdough (머루를 이용한 Sourdough 식빵 개발)

  • Bing, Dong-Joo;Kim, Won-Tae;Chun, Soon-Sil
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.12
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    • pp.1896-1905
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    • 2014
  • The purpose of this study was to manufacture white bread by substituting bakery yeast with natural starter. The general composition of wild grape, was 81.22% moisture, 0.81% ash, 0.74% crude fat, 1.58% crude protein, and 15.65% carbohydrate contents. Fermented wild grape extract was made by culturing for 4 days at $25^{\circ}C$. Flour was added three times to fermented wild grape extract and incubated for 36 hours at $20^{\circ}C$ to manufacture sourdough. We investigated the quality characteristics of white bread with different amounts of fermented wild grape sourdough. The pH of dough decreased with increasing amounts of sourdough, whereas total titratable acidity of dough significantly increased. Fermentation power of dough expansion significantly increased with increasing incubation time, and control showed the highest value of 126.67%. White bread specific volume was highest in, 50% sourdough at 4.76 mL/g. Water content increased with increasing amounts of sourdough, whereas water activity was not significantly different between the samples. For texture, hardness of 50% sourdough was lowest at 19.23 g. In the sensory evaluation, color, flavor, softness and overall acceptability decreased with increasing amounts of sourdough. As a result, 50% sourdough can be considered as a baker's yeast substitute for making natural fermented bread.

Comparison of Some Characteristics Relevant to Rice Bread made from Eight Varieties of Endosperm Mutants between Brown and Milled Rice (8품종 변이체 벼의 현미 및 백미빵 가공성 비교)

  • Kang, Mi-Young;Koh, Hee-Jong;Han, Ji-Yeun
    • Korean Journal of Food Science and Technology
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    • v.32 no.1
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    • pp.82-89
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    • 2000
  • Relationship among the properties of rice, such as amylose contents of endosperm starch, sugar content and amylogram characteristics, and processing properties for rice bread was studied. The amylose content of the rice cultivars decreased in order of Nampungbyeo, Whachungbyeo>Punchilmi(fl)>Nampung CB243> Whachung du-I, Nampung EM90>Whachung-chalbyeo>shr. Protein contents of rice tested in this study were almost same level, however, shr, the high sugar rice, showed the highest protein content scored as 8.2%. The study showed that the amylose contents of rice cultivars were negatively correlated with their protein contents. The starting temperatures for gelatinization of the flour of Punchilmi(fl) and Shurunken(shr) were low, however, in case of Whachungbyeo and Nampungbyeo plus their mutants derived from the both, the stickiness and the hardness of the flours were shown to be positively correlated with the amylose contents. In addition, loaf volume tested using sensory evaluation and overall quality showed the same tendency. Among the rice cultivars tested in this study, breads made from white rice had good qualities in bread making process than those made from brown rice. The bread made from Nampungbyeo was demonstrated to have highest score e in overall quality, as well as the lowest retrogradation index during storage at $4^{\circ}C$

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Effects of Poria cocos Powder Addition on the Baking Properties (복령분말첨가가 제빵특성에 미치는 영향)

  • 서영호;김준한;문광덕
    • Food Science and Preservation
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    • v.5 no.3
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    • pp.275-280
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    • 1998
  • The effects of Poria cores powder addition on bread making were investigated by evaluation of dough rasing power, rheological properties of dough by farinograph and extensograph color and sensory quality. As increment of Poria cocos powder, dough rasing power and extensibility were decreased but water absorption rate and resistance were increased. Time for dough formation, stability and v/v point of dough were increased when 5 and 10 percent of Poria cocos powder were added. Color of bread wasn't significantly different when Poria cocos powder was added up to 10 percent. Overall acceptance by sensory evaluation was the best when 5 percent of Poria cocos powder was added, tut there are no significant difference among breads which were made with various mixing rates of Poria cocos powder.

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Changes in Protein, Rheology and Bread-Making Properties of Wheat during Kernel Maturation (소맥(小麥)의 성숙(成熟)에 따른 단백질(蛋白質), 리올로지 및 제(製)빵특성(特性)의 변화(變化))

  • Chang, Hak-Gil;Byoun, Kwang-Eui
    • Applied Biological Chemistry
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    • v.28 no.4
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    • pp.278-283
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    • 1985
  • These studies were conducted to investigate the changes and relation in protein, rheology and bread-mating properties during hard and soft wheat maturation. Samples were collected from the fields at 25 to 50 days after heading at intervals of 5 days. Protein content, sedimentation value and Pelshenke value of the tested wheat kernel or flour differed significantly between hard and soft wheat, and was relatively constant at 35 to 40 days after heading in each cultivar. In Mixogram water absorption of the flour, soft wheat increased only slightly, while intermediate and hard wheat increased remarkedly with maturation of the kernel. Total Mixogram characteristics increased and reached its maximum level at 35 days after heading. Farinogram pattern and bread loaf volume of the flour was greatly differences at the early stages of development due to cultivar, and was relatively constant at 40 days after heading. Significant positive and negative correlations were obtained among the protein and rheological properties, and tread loaf volume as the kernel matured.

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Effects of whole wheat flour on the Rheological Properties of dough gassing power of yeast (전립분 첨가시 빵생지의 물성 및 이스트의 가스발생력에 미치는 영향)

  • 노삼현;이명렬
    • Culinary science and hospitality research
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    • v.7 no.3
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    • pp.179-191
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    • 2001
  • The effects of whole wheat flour on the Rheological Properties of dough gassing power of yeast S.cerevisiae and breadmaking properties were studied. The blending ratios of whole wheat flour to bread making flour were 0, 25, 50, 75 and water absorption in the farinography increasedlinerly from 62.5%in 100% bread making flour and 77.5% in 100% whole wheat flour. The hardness and cohesiveness of dough prepared with optimum moisture content was constant regardless of the blending ratio of whole wheat flour. whole wheat flour had no effect on the total gas production or the internal gas content in the dough at a constant moisture level but had detrimental effect on the loaf volume. In a dough at the optimum moisture level, whole wheat flour increased the two former parameters sensory evaluation indicated that the replacement in the range of 25 to 50% with whole wheat flour at the optimum moisture level was acceptable

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Quality Score Index as a Criterion for Wheat Quality (품질평점지수(品質評點指數)에 의한 소맥품질(小麥品質)의 평가방법(評價方法))

  • Ryu, In-Soo;Shin, Hyun-Kuk;Bae, Sung-Ho
    • Applied Biological Chemistry
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    • v.21 no.3
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    • pp.193-196
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    • 1978
  • Wheat quality score index was proposed as a new criterion of wheat_quality for evaluation of the laboratory testing value such as milling rate (Xm), flour ash content (Xa), flour protein content (Xp) and sedimentation value (Xs). 1) Wheat quality score index was expressed as follows; Milling score index (MSI) $=2.3X_m-72.4X_a$ Protein score index (PSI) =$5.2X_p+0.9X_{psi}$ Composite quality score index (QSI) =$0.63X_{msi}+0.37X_{psi}$ 2) The samples with the more than 100 of MSI would be the good milliability, and the samples with more than 100 of PSI would be the good bread making properties, while that with less than 100 of PSI be good pastry type properties. Whereas most of the samples with higher value of QSI would be related to the good milliability and good bread making properties. 3) MSI, PSI and QSI were significantly correlated to the each related quality components.

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A Study of Buying and Wearing Fur Clothes (모피의류의 구매 및 착용실태 I)

  • 오선숙
    • The Research Journal of the Costume Culture
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    • v.3 no.1
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    • pp.109-124
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    • 1995
  • This study is purposed to analyze the degree of content and wearing style of fur cloths in order for women to buy them effectively and to wear them contentedly. So scrutinized buying style and wearing condition of fur clothes. To show whether women's buying fur clothes are suitable for their body or not, this study was examined characteristics, sorts, method of fabrication and manufacture, buying pattern and trends of fur clothes. The conclusion from this study examining the degree of possession, decision making of buying and recognition of fur clothes are as followings: 1. When women wears fur clothes, style of fur clothes have nothing to do with their body and height, and women who are 150∼160cm tall content to fur clothes commonly. 2. Condition of buying fur clothes, many 40's women whose only husband earns family's bread belong to fur clothes, and buy them, talking with a husband. Also, according to income a month, and to the ind of a job, in case of a couple's earning family's bread together, women whose whose income is 800,000 to 1,000,000₩ level. 3. Condition of wearing fur clothes, the cause that women feel like wearing fur clothes is as following: economic stability their own pride, and contentment to wear them. Women want to wear those different from fur clothes that they possess, and half coat, because of working conveniently. As the above mention, purchasers recognite the conception of fur clothes for themselves, and buy economically them, and must wear those of which design and style are suitable for body.

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The Study of Antioxidant Properties, and Physicochemical and Sensory Characteristics of Steamed Barley Bread added with Ramie Leaf (모싯잎 가루를 첨가한 찰보리 찐빵의 항산화 활성, 이화학적 특성 및 관능적 품질 특성에 관한 연구)

  • Kim, Ji-Hyun;Kim, Se-Jung;Yun, Jung-Mi
    • The Korean Journal of Food And Nutrition
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    • v.27 no.2
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    • pp.249-255
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    • 2014
  • Increased consumption of a polysaccharide, ${\beta}$-glucans, in foods may prevent health related problems such as cancer, cardiovascular diseases and diabetes. ${\beta}$-glucans is a fibrous polysaccharide having proven both functional and medicinal properties. Recently, the FDA recommends the consumption of oat or oat products containing a total of at least 3 grams of bea-glucans per day for health improvement. The content of ${\beta}$-glucans in barley was almost four times higher than that in oat. In this study, the physicochemical and sensory characteristics and biological properties of steamed barley bread added with ramie leaf powder was investigated. The study of sensory characteristics was performed using the Quantitative Descriptive Analysis (QDA). 30 panelists were selected among our university students. They then evaluated the different sensory characteristics, such as overall preference, color, flavor, chewiness, moistness and taste. The color and texture analyses were determined using a colorimeter and texture analyser, respectively. In the sensory, color and texture evaluation, barley bread with ramie leaf showed higher values than barley bread and wheat bread did. The physiological activities were investigated through the total phenol content and 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical scavenging activity. Hence, barley appears to be a suitable food resource for making bread. This study suggests that barley bread added with ramie leaf can be used as one of the processing methods in promoting the consumption of barley. It might also help with the improvement of barley food industry.

Physicochemical Characteristics and Varietal Improvement Related to Palatability of Cooked Rice or Suitability to Food Processing in Rice (쌀 식미 및 가공적성에 관련된 이화학적 특성)

  • 최해춘
    • Proceedings of the Korean Journal of Food and Nutrition Conference
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    • 2001.12a
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    • pp.39-74
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    • 2001
  • The endeavors enhancing the grain quality of high-yielding japonica rice were steadily continued during 1980s∼1990s along with the self-sufficiency of rice production and the increasing demands of high-quality rices. During this time, considerably great, progress and success was obtained in development of high-quality japonica cultivars and qualify evaluation techniques including the elucidation of interrelationship between the physicochemical properties of rice grain and the physical or palatability components of cooked rice. In 1990s, some high-quality japonica rice caltivars and special rices adaptable for food processing such as large kernel, chalky endosperm aromatic and colored rices were developed and its objective preference and utility was also examined by a palatability meter, rapid-visco analyzer and texture analyzer. The water uptake rate and the maximum water absorption ratio showed significantly negative correlations with the K/Mg ratio and alkali digestion value(ADV) of milled rice. The rice materials showing the higher amount of hot water absorption exhibited the larger volume expansion of cooked rice. The harder rices with lower moisture content revealed the higher rate of water uptake at twenty minutes after soaking and the higher ratio of maximum water uptake under the room temperature condition. These water uptake characteristics were not associated with the protein and amylose contents of milled rice and the palatability of cooked rice. The water/rice ratio (in w/w basis) for optimum cooking was averaged to 1.52 in dry milled rices (12% wet basis) with varietal range from 1.45 to 1.61 and the expansion ratio of milled rice after proper boiling was average to 2.63(in v/v basis). The major physicochemical components of rice grain associated with the palatability of cooked rice were examined using japonica rice materials showing narrow varietal variation in grain size and shape, alkali digestibility, gel consistency, amylose and protein contents, but considerable difference in appearance and torture of cooked rice. The glossiness or gross palatability score of cooked rice were closely associated with the peak. hot paste and consistency viscosities of viscogram with year difference. The high-quality rice variety “Ilpumbyeo” showed less portion of amylose on the outer layer of milled rice grain and less and slower change in iodine blue value of extracted paste during twenty minutes of boiling. This highly palatable rice also exhibited very fine net structure in outer layer and fine-spongy and well-swollen shape of gelatinized starch granules in inner layer and core of cooked rice kernel compared with the poor palatable rice through image of scanning electronic mcroscope. Gross sensory score of cooked rice could be estimated by multiple linear regression formula, deduced from relationship between rice quality components mentioned above and eating quality of cooked rice, with high Probability of determination. The ${\alpha}$ -amylose-iodine method was adopted for checking the varietal difference in retrogradation of cooked rice. The rice cultivars revealing the relatively slow retrogradation in aged cooked rice were Ilpumbyeo, Chucheongbyeo, Sasanishiki, Jinbubyeo and Koshihikari. A Tongil-type rice, Taebaegbyeo, and a japonica cultivar, Seomjinbyeo, shelved the relatively fast deterioration of cooked rice. Generally, the better rice cultivars in eating quality of cooked rice showed less retrogiadation and much sponginess in cooled cooked rice. Also, the rice varieties exhibiting less retrogradation in cooled cooked rice revealed higher hot viscosity and lower cool viscosity of rice flour in amylogram. The sponginess of cooled cooked rice was closely associated with magnesium content and volume expansion of cooked rice. The hardness-changed ratio of cooked rice by cooling was negatively correlated with solids amount extracted during boiling and volume expansion of cooked rice. The major physicochemical properties of rice grain closely related to the palatability of cooked rice may be directly or indirectly associated with the retrogradation characteristics of cooked rice. The softer gel consistency and lower amylose content in milled rice revealed the higher ratio of popped rice and larger bulk density of popping. The stronger hardness of rice grain showed relatively higher ratio of popping and the more chalky or less translucent rice exhibited the lower ratio of intact popped brown rice. The potassium and magnesium contents of milled rice were negatively associated with gross score of noodle making mixed with wheat flour in half and the better rice for noodle making revealed relatively less amount of solid extraction during boiling. The more volume expansion of batters for making brown rice bread resulted the better loaf formation and more springiness in rice bread. The higher protein rices produced relatively the more moist white rice bread. The springiness of rice bread was also significantly correlated with high amylose content and hard gel consistency. The completely chalky and large gram rices showed better suitability for fermentation and brewing. Our breeding efforts on rice quality improvement for the future should focus on enhancement of palatability of cooked rice and marketing qualify as well as the diversification in morphological and physicochemical characteristics of rice grain for various value-added rice food processings.

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Survey on Wheat Flour Utilization in Korea (우리나라의 밀가루 이용실태 조사)

  • Kim, Sung-Kon;Kim, Bok-Nam
    • Journal of the Korean Society of Food Culture
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    • v.4 no.1
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    • pp.109-120
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    • 1989
  • The use of wheat flour in Korea in 1986 and 1987 was surveyed. A brief outline of wheat flour milling industry was also included. Since the overall trend in flour usage in 1986 and 1987 was similar, the data in 1986 were presented. Total sales volume of wheat flour was 1,556,891M/T, of which 51.1% was sold to wholesale agents and the remainder to commercial users. The main usages of flour were noodle-making, baking, brewing and common use including home use, retailer and supermarket. The first and second class of all-purpose flour were used for noodle-making and brewing. Bread was produced with the first class of strong flour. For confectionery the first class of all-purpose flour was mainly used.

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