• 제목/요약/키워드: low-protein wheat

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Evaluation of Bread Baking Quality of Korean Winter Wheat over Years and Locations

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee
    • 한국작물학회지
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    • 제47권1호
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    • pp.13-20
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    • 2002
  • Bread baking parameters and relationships between bread baking properties and flour characteristics were evaluated for two years, 1997 and 1998, and at two locations, Suwon and Deokso, with Korean winter wheat cultivars and lines. Among the bread baking parameters, lightness of crumb grain showed differences between years. No significant differences were found in dough mixing time, bread loaf volume, crumb grain score or firmness. Keumkangmil, Suwon 278 and Tapdongmil showed higher bread loaf volume, good structure of crumb grain and softer crumb firmness. However, compared to commercial flours for baking, cultivar means averaged over years and locations of nineteen Korean winter wheats showed poor bread baking quality because of low protein content and unsuitable protein quality. Protein content and flour swelling volume showed better relationships with the bread baking parameters than other flour characteristics. Friabilin-absence lines showed softer crumb firmness than those of friabilin-presence lines.

소맥(小麥)의 단백질(蛋白質) 및 Lysine함량(含量)에 미치는 환경적(環境的) 변이(變異) (Effect of Environmental Factors on Protein and Lysine Content of Wheat)

  • 김재욱;장학길
    • Applied Biological Chemistry
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    • 제29권2호
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    • pp.116-121
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    • 1986
  • 공시소맥품종계통(供試小麥品種系統) 869에 대하여 단백질(蛋白質) 및 lysine함량(含量)을 분석(分析)하였으며, 고단백(高蛋白), 고(高) lysine품종(品種)의 환경(環境)에 대한 반응성(反應性)이 stability parameter에 의하여 검토한 결과 단백질(蛋白質)과 lysine함량(含量)은 $r=0.902^{**}$의 고도(高度)의 정(正)의 상관관계(相關關係)가 있었으나, lysine/protein과는 부(負)의 상관관계(相關關係)가 있었다. Bezostaya와 Lancota는 단백질(蛋白質)의 환경반응(環境反應)이 비교적 적은 반면 회귀계수(回歸係數)가 1.0 이상인 CI 13449와 Centurk는 환경반응(環境反應)이 컸다. 이와 같은 현상은 lysine의 환경반응(環境反應)에서도 동일한 경향을 보였다. 공시(供試)된 4개 품종(品種)의 단백질함량(蛋白質含量)의 유전력(遺傳力)은 $h^2=0.809$, lysine은 $h^2=0.647$로서 높은 유전력(遺傳力)을 보였다.

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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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    • 제16권2호
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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.

밀 주요 교배모본의 단백질 특성 (Protein of Major Germplasms for High-Protein Wheat Breeding)

  • 하용웅;송현숙;이춘기;조장환
    • 한국작물학회지
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    • 제35권5호
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    • pp.393-402
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    • 1990
  • 밀 주요 교배모본들에 대한 단백질 함량 변이와 아미노산조성 및 단백질 함량과 제빵 적성간의 관계를 구명하여 용도별 품질에 적합하도록 단백질의 량과 질을 개선하는데 중요한 기초자료를 얻고자 수행한 결과를 요약하면 다음과 같다. 1. 전체 교배모본의 단백질이 9.9%까지의 넓은 분포를 보였으며, 그 평균치는 13.2%를 보였다. 품종별로는 원광이 가장 낮았으며 충남재래, 수원 210호 등이 가장 높은 단백질 함량을 보였다. 2. 국내 육성 또는 재래품종들 가운데서도 14.4% 이상의 함량을 보이는 계통들이 충남재래를 비롯하여 12품종 및 계통들이 선발되었다. 3. 주요 품종들의 단백질 함량과 재배환경 조건과의 관계에서 지역간 최고 3.6%, 년차간 최고 3.3% 차이를 보였으나 품종 고유의 특성은 거의 일정하게 나타났다. 4. 그루밀 등 3품종의 아미노산분석 결과 Proline을 제외한 제빵적성 관련 아미노산들이 단백질함량 증가시 유리한 방향으로 개선되었으나, 영양적 측면은 1g 단백질 기준 아미노산 함량에서 필수아미노산 권장치 350mg(트립토판 제외)에 비해 266.6-273.2mg으로 단백질 함량과는 상관없이 크게 미달되는 것으로 나타났으며, 특히 필수아미노산중 Methionine, Lysine 및 Threonine이 크게 결핍되는 것으로 나타났다. 5. 심전가와 단백질 함량간의 간계에서 매우 상이한 재배환경을 감안하고서도 평균적으로 0.656$^{**}$ 의 높은 상관치를 보였으며, 조건에 따라서 최고0.956$^{**}$ 까지 높은 상관을 보여 단백질 함량만으로도 제빵적성 판정이 가능하였다.

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수확 연도별 우리밀과 수입밀의 품질 변이 비교 (Quality Variation of Domestic Wheat Compared to Imported Wheat Depending on Harvest Year)

  • 곽한섭;김태종;주은영;차장헌;김아진;김미정;김상숙
    • 한국식품영양과학회지
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    • 제46권1호
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    • pp.146-151
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    • 2017
  • 2011년에서 2013년까지 국산 원맥 443점과 수입 원맥 160점의 품질 특성을 비교하였다. 수분 함량은 국산 원맥이 10.90~13.90%, 수입 원맥은 8.0~12.6%로 나타났다. 단백질 함량은 국산 원맥이 9.34~16.1%, 수입 원맥은 9.0~14.6% 범위에 있었다. 회분 함량은 국산 원맥이 1.28~1.89%, 수입 원맥은 1.19~1.74%였으며, 원맥의 단위 밀도는 국산 원맥이 512~859 g/L, 수입 원맥이 789~853 g/L로 수입 원맥의 범위가 더 좁게 나타났다. 국산 원맥의 falling number는 147~822 s로 통상적인 고품질 밀가루의 범위인 300~600 s를 벗어난 300 s 미만의 낮은 품질의 원맥이 존재함을 보여주었다. 반면에 수입 원맥의 falling number는 모두 300 s 이상이며 최대치는 516 s로 모든 원맥이 고품질 범위에 있었다. 피해립과 이물질 함량에서는 국산 원맥이 수입 원맥보다 평균적으로 높은 수치를 보여주었으나, 국산 원맥의 피해립과 이물질 함량은 2011년에서 2013년으로 갈수록 수치가 점차 줄어드는 경향성을 보여주어 지속적인 품질 개선이 이루어지고 있음을 보여주었다.

내외국산 소맥의 주요품종별 제분성 비교연구 (Studies on the milling quality of major varieties of domestic and foreign produced wheat)

  • 김희갑
    • 한국작물학회지
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    • 제10권
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    • pp.57-60
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    • 1971
  • 한국산 소맥 5품종과 미국산소맥 3품종을 밀과 밀가루의 성분ㆍ회분ㆍ조단백질함량 및 제분율을 조사하였는데 그 성적을 요약하면 다음과 같다. 1. 수분은 한국산밀이 미국산밀보다 품종과 시료에 따른 차가 컸다. 2. 밀의 회분함량이 미국산 밀에서는 경질과 연질에 따라 차가 현저했는데 한국산밀에서는 그렇지 않았다. 3. 제분율은 한국밀중에서는 육성 003 한 품종만이 비교적 높고 기타는 미국밀에 비하여 현저히 낮았다. 4. 밀가루의 회분함량은 품종간의 차를 인정할수 없었다. 5. 밀가루의 조단백질함량은 한국밀보다 미국밀중에 현저히 높은 것이 있었다. 6. 밀의 조단백질함량과 밀가루의 조단백질함량과의 상관은 한국밀에서 보다 미국밀에서 현저하게 높았다.

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In-sacco Degradability of Dietary Combinations Formulated with Naturally Fermented Wheat Straw as Sole Roughage

  • Pannu, M.S.;Kaushal, J.R.;Wadhwa, M.;Bakshi, M.P.S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제15권9호
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    • pp.1307-1311
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    • 2002
  • Twelve dietary combinations were prepared using 70 parts of fermented wheat straw (FWS) as the sole roughage supplemented with 30 parts of either the low protein concentrate mixture (Conc.-I), high protein concentrate mixture (conc.-II), maize grains (M), solvent extracted mustard cake (DMC), deoiled rice bran (DRB), uromol bran mixture (UBM), deep stacked poultry litter (DSPL), dried poultry droppings (DPD), M-DMC mixture (50:50), M-UBM mixture (50:50), M-DPD mixture (50:50) or M-UBM-DPD mixture (50:25:25) and evaluated by in-sacco technique. The above dietary combinations were also evaluated by changing the roughage to concentrate ratio to 60:40. The digestion kinetics for DM and CP revealed that FWS:DPD had the highest, whereas, the FWS:M-DMC had the lowest rapidly soluble fraction. The potentially degradable fraction was found to be maximum in FWS:M and minimum in FWS:DPD dietary combinations. The higher degradation rate of FWS:DRB and FWS:UBM combinations was responsible for their significantly (p<0.05) higher effective degradability as compared to other combinations. The highest undegradable fraction noted in FWS:M-UBM-DPD followed by FWS:DMC was responsible for high rumen fill values. The FWS:DRB, FWS:UBM and FWS:DPD combinations had higher potential for DM intake. The dietary combination with higher concentrate level (60:40) was responsible for higher potentially degradable fraction, which was degraded at a faster rate resulting in significantly higher effective degradability as compared to the corresponding dietary combination with low concentrate level (70:30). The low undegradable fraction in the high concentrate diet was responsible for low rumen fill values, which predicted of high potential for DM intake. Out of 24 dietary combinations, FWS with either of UBM, DRB, DMC, Maize, M-DMC or DPD in 70:30 ratio supplemented with minerals and vitamin A in comparison to conventional feeding practice (roughage and concentrate mixture) could be exploited as complete feed for different categories of ruminants.

쌀 중심식사와 밀가루 중심식사의 영양소 섭취량 비교연구 -대구와 밀양지역을 중심으로- (A Comparative Study on the Nutrient Content of Rice-Based and Wheat-Based Meals in Miryang and Daegu)

  • 류호경
    • 한국지역사회생활과학회지
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    • 제14권3호
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    • pp.31-42
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    • 2003
  • This study was conducted to compare the nutrient content of rice-based meals and wheat-based meals. The subjects consisted of elementary school children, middle school students, high school students, college students and adults living in the Miryang and Daegu area. A dietary survey was conducted using a 24-hour recall method and data were collected from 941 subjects. Nutrient contents were analyzed by CAN Pro. All nutrient contents in rice-based meals, except vitamin B2, were higher than those in wheat-based meals. But lipid and cholesterol contents of wheat-based meals were higher than those in rice-based meals. Comparing age groups, all nutrient contents obtained from rice-based meals, except vitamin B group, were higher than those in wheat-based meals in all age groups except the adult group. In the adult group, protein, fiber, vitamin A, niacin and vitamin C were consumed higher from rice-based meals, but energy, lipid, calcium, iron, vitamin B and cholesterol were consumed higher from wheat-based meals. lipid and cholesterol contents of wheat-based meals were higher than those of rice-based meals in all age groups, except elementary school children. When compared the nutrient intakes of Korean RDA, major nutritional problems of each age groups were due to the inadequate intakes of calcium and iron. And all nutrient contents, except vitamin B group, in wheat-based meals were very low in every age group.

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국산밀을 이용한 white layer cake의 제조 적성 (White Layer Cake-Making Properties of Korean Wheat Cultivars)

  • 김상화;이영택;장학길;원준형;남중현
    • 한국식품과학회지
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    • 제34권2호
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    • pp.194-199
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    • 2002
  • 8품종의 국산밀에 대한 이화학적 특성 및 white layer cake 제조 특성을 조사하였다. 국산밀의 제분율은 $62.5{\sim}71.8%$의 분포로 품종간의 차이가 큰 것으로 나타났다. 국산밀가루의 단백질 함량은 $7.70{\sim}10.58%$의 범위였으며, 회분 함량는 $0.51{\sim}0.71%$의 범위로 수입밀 박력분에 비해 다소 높았다. 국산밀가루의 mixograph 반죽특성에서 우리밀, 알찬밀, 올그루밀의 반죽 물성이 매우 약해 cake의 제조에 적합하였고 은파밀, 그루밀은 단백질 함량에 비해 안전성이 다소 떨어졌으며, 금강밀과 탑동밀가루는 반죽의 안정성이 높은 경질밀의 특성을 보여 cake의 제조에 부적합함을 보여주었다. 국산밀 cake반죽의 pH와 비중은 각각 $6.71{\sim}7.08,\;0.73{\sim}0.76\;g/cc$의 범위로 박력분 반죽과의 차이가 크지 않은 것으로 나타났다. White layer cake의 부피, 비체적은 각각 $837.5{\sim}952.5\;cc,\;2.16{\sim}2.40\;cc/g$의 범위로 알찬밀이 가장 높은 값을 주었다. 국산밀 cake은 symmetry와 uniformity에서 박력분 제조 cake 보다 약간 떨어지는 경향을 주었다. 국산밀 cake의 crumb 색도는 박력분 보다 다소 어둡고 황색도가 높은 것으로 나타났다. 국산밀 cake의 텍스쳐는 품종에 따라 차이를 보였으며 알찬밀, 우리밀에서 경도가 낮아 부드러운 것으로 나타났다.

Comparison of Milling and Flour Quality Characteristics of Foreign Wheat and Korean Wheat

  • Jinhee Park;Kyeong-Hoon Kim;Chon-Sik Kang;Go Eun Lee;Kyeong-Min Kim;Mina Kim;Han-yong Jeong;Yurim Kim;Jiyoung Shon;Jong-Min Ko
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2022년도 추계학술대회
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    • pp.296-296
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    • 2022
  • This study was investigated to compare the milling and physicochemical characteristics of six Korean wheat cultivars (Keumkang, KK; Jokyung, JK; Goso, GS; Joongmo2008, JM; Baekkang, BK; Saekeumkang, SKK) and five foreign wheat classes (Australian standard white wheat, ASW; Australian hard, AH; US northern spring, NS; US hard red winter, HRW; Soft wheat, SW). Korea and foreign wheat grains were milled using a Buhler MLU-202. Flour moisture, ash, protein, gluten, sedimentation, particle size, solvent retention capacity (SRC) and dough properties of flour were analyzed. Results showed that the hard wheats had a greater total flour yield and reduction fraction yield than the soft wheats regardless of the country. However, there were in the milling characteristics between the US and Korean soft wheats. GS, a soft wheat in Korea, had the lowest flour yield (59.6%) and the highest bran fraction yield (21.4%). The particle sizes of flour by milling fraction were B1>B2>B3 for the largest, and the R1〈R2〈R3 for the smallest. Particle size, ash, protein contents and the values of lactic acid SRC showed highly correlated with flour yield. The gluten-performance-index (GPI) is the ratio of the lactic acid SRC value to the sum of sodium carbonate and sucrose SRC values, and it has been used as a quality indicator for overall performance potential of flour. GPI values differed depending on the wheat variety or class, JM (0.82) was the highest value, and SKK (0.56) and SW (0.59) were low. The curve pattern of the Mixolab result also gives a quality indication of the flour sample. JM and NS flour had similar pattern at water absorption and gluten strength parameters and BK and HRW had similar viscosity patterns. These results will enable further study for blending Korean wheat cultivar to improve the flour quality.

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