• Title/Summary/Keyword: Korean malting barley

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Quality Characteristics of Barley Varieties Related to Enzymatic Activity in Malt (엿기름의 효소활성과 관련한 보리의 품질특성)

  • Lee, Young-Tack;Seo, Se-Jung;Chang, Hak-Gil
    • Korean Journal of Food Science and Technology
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    • v.31 no.6
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    • pp.1421-1426
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    • 1999
  • Sixteen domestic barley varieties and subsequently produced malts were evaluated for quality characteristics. Diastatic power(DP), complementary actions of amylases in malt, had a wide $variation(139{\sim}220^{\circ}L)$ among the barley varieties. Some 6-row barley varieties demonstrated significantly high DP values. ${\beta}-\;and\;{\alpha}-amylase$ activities in malts were also significantly influenced by barley varieties. Diastatic power was highly correlated with ${\beta}-amylase$ activity, indicating that the ${\beta}-amylase$ activity was a predominant factor determining saccharifying action in malt. Amylograph was used to indirectly estimate starch-degrading enzymatic activity, and the reduction in amylograph viscosity was associated with ${\alpha}-amylase$ activity. Barley quality factors in relation to enzymatic activity of malt were analyzed, and the barley variety with lower kernel weight and less plumper kernels tended to produce higher starch-degrading enzyme activity. Potential diastatic power, an estimate of bound ${\beta}-amylase$ in raw barley, was associated with diastatic power in the final malt. Potential diastatic power turned out to be an important factor for predicting good malting barley.

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Effect of Mixed Seeding Types and Ratios of Whole Crop Barley for High Yield and Feed Value (보리 품종간 혼파 비율에 따른 수량과 사료적 가치)

  • Song, Tae-Hwa;Park, Tae-Il;Oh, Young-Jin;Han, Ouk-Kyu;Park, Hyoung-Ho;Hyun, Jong-Nae;Kwon, Young-Up;Kim, Kyeong-Hoon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.60 no.4
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    • pp.458-463
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    • 2015
  • This study was conducted to investigate the mixed seeding of 5 forage barley varieties (youngyang, yuyeon, dami, wooho, soman) with 1 malting barley variety (hopum). Yield of the mixed seeding was compared with each single seeding and variety combinations. Yield of mixed seeding combination was higher than each single seeding. In mixed seeding of 'Youngyang' and 'Hopum' (50% and 50% ratio), 'Yuyeon' and 'Hopum' (70% and 30% ratio), 'Dami' and 'Hopum' (50% and 50% ratio), 'Wooho' and 'Hopum' (50% and 50% ratio) were higher yield of dry weight than yield of other mixed ratios. Most of all, mixed seeding of 'Dami' and 'Hopum' were high yield mixed seeding (ratios of 50% each other). In generally, the yields of barley mixed seeding with malting barley 'Hopum' were high production. The forage quality of mixed seeding combination was higher than any each single seeding. 'Youyeon' 50% and 'Hopum' 50% ratio was more higher TDN content (69.2%) than any other mixed combination.

Effects of Coal Fly Ashes on Growth and Yields of Malting Barley in Soils of Paddy-Upland Rotation Culture (석탄회(石炭灰) 시용(施用)이 논 맥주보리의 생육(生育)과 수량(收量)에 미치는 영향)

  • Ha, Ho-Sung;Min, Gee-Sik;Jo, In-Sang;Shin, Jae-Sung;Kang, Ui-Gum
    • Korean Journal of Soil Science and Fertilizer
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    • v.31 no.2
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    • pp.151-157
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    • 1998
  • Fly ash application with a rate of 0, 50, 100, $150Mg\;ha^{-1}$ in clay loam paddy, which had properties of pH 5.3 and low contents of silicate and boron, gave a strongly positive effects on the growth and yields of malting barley showing better responses in bituminous coal fly ash(BCFA) than anthracite fly ash(AFA). Especially, soil chemical characteristics improved greatly by fly ash were pH, available phosphate, exchangeable calcium, available silicate, and boron. Shoot length and the number of tiller till defrosting season appeared the most positive responses by application of BCFA $50Mg\;ha^{-1}$ and AFA $100Mg\;ha^{-1}$. However, the number of spikelet per panicle at heading stage was proportionally increased to the rates of each fly ash. As a result, the grain yields of malting barley were increased to $13.8(4.221Mg\;ha^{-1}){\sim}37.7%(5.106Mg\;ha^{-1})$ by application of BCFA and to $1.1(3.75Mg\;ha^{-1})-20.6%(4.473Mg\;ha^{-1})$ by application of AFA. Protein contents in the grain was the highest in $150Mg\;ha^{-1}$ plot, showing 10.5 and 10.8% by BCFA and AFA application, which were suitable for malting. At harvesting, plants showed 49 and 58% of lodging indices by application of BCFA 100 and $150Mg\;ha^{-1}$, respectively, which were equivalent to two fold values of those by AFA.

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녹맥아에서 추출한 Endo-$\beta$-1,3-glucanase의 정제와 효소학적 성질

  • 손봉수;성낙계
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1986.12a
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    • pp.520.1-520
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    • 1986
  • Endo-$\beta$-1,3-glucanase는 barley glucan, laminarin등에 특이적으로 작용하는 효소로서 Malting process, Brewing process에 중요한 효소이다. 본 연구에서는 산업적으로 이용하기 위한 기초자료를 얻기 위하여 국산맥주맥으로 발아한 Green Malt를 Sample로 하여 Endo-$\beta$-1,3-glucanase를 추출하여 (DEAE Sephadex A-50, CM sephadex C- 50 Sephadex G-75)등을 이용하여 정제하여 이들 정제효소의 효소학적 성질등을 검토하였다.

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New Malting Barley Variety "Doo San # 781" (맥주맥 양질, 다수성 신품종 "두산 781")

  • 박우형;정창해;정우섭;최창휴;김병무
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.24 no.4
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    • pp.26-34
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    • 1979
  • A new barley cultivar "Doo San #781" has been developed from combination of Seijo #17 and Piroline at Sacheon Experiment Station, Doo San Poongsan Co. This cultivar is early, medium culm, lodging resistant and panicle numbers type. Also, yields of this cultivar were increased at all experiment locations regardless paddy-and up-lands cultivations except Cheju districts, thus indicating the broad adaptibility.ptibility.

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Varietal Differences of Germination and Emergence Capacity under Low Temperature Conditions in Barley (대맥에서 저온 발아 및 출현력의 품종간 차이)

  • Chun, J.U.;Lee, E.S.;Lee, S.Y.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.29 no.2
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    • pp.152-156
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    • 1984
  • Germination and emergence of 16 barley cultivars bred in Korea were studied under different low temperature conditions in laboratory at Suweon. This study revealed that the barley cultivars differed markedly in their germination rate index (GRI), emergence rate index (ERI), and dry matter weight. The seeds of Baekdong, Namhaebori, Gangbori and Buheung germinated better than others in $4^{\circ}C$ plot. Yeongsanbori, Kwangseong and Baekdong had very poor ERI values, but Buhobori, Namhaebori, Oweolbori, Albori and malting barley, Sacheon 6 had very good ERI values. Germination rate index were not correlated with emergence rate index under any temperature conditions. The correlation coefficient between ERI of $4^{\circ}C$ and $7^{\circ}C$ plots was very high. Those results showed that for screening the varieties or lines with good emergence capacity under low temperature conditions ERI, FS and dry matter weight would be available.

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Responses of Malting Barley Cultivars to Different Seeding Rates II. Correlation and Path Coefficient among Agronomic Traits (파종량에 따른 맥주맥의 품종간반응 II. 주요형질간 상관 및 경로계수)

  • 이영만;구자옥;하기용
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.29 no.4
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    • pp.422-426
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    • 1984
  • According with variations in principal agronomic traits of fourteen malting barley cultivars as affected by different seeding methods and seeding rates. the analysis and interpretation of correlation coefficients and path coefficients was intended. From all treatments (seeding methods and rates), the positive significant relations detected between flowering days and maturing days, however the negative between maturing days and culm length, number of grains per spike, yields, and between 1000 grain weight and one liter weight, respectively. Direct effects on the yields were greatest by number of grains per spike in case of narrow-spaced row seeding and number of spikes per m$^2$ and number of grains per spike among others in broadcast seeding method On the other hand, indirect effects were not recognized in any treatments.

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Responses of Malting Barley Cultivars to Different Seeding Rates I. Variation of Yield Components and Yields in Different Seeding Rates (파종량에 따른 맥주맥의 품종간반응 I. 수량구성요소 및 수량변이)

  • 구자옥;이영만;하기용;신동영
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.29 no.4
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    • pp.409-415
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    • 1984
  • Finding the variations of principal agronomic traits, fourteen malting barley cultivars were tested with both narrow-spaced row seeding and broadcasting on high ridge respectively. The seeding rates were varied as 15, 20, 25, 30 and 35 liter per 10a in the narrow-spaced row seeding and 20, 25, 30, 35, and 40 litre in the broad casting on his ridge respectively. As a result of the test, there were highly significant differences in variation pattern of assessed traits among cultivars. However, the additional seeding rates in both seeding methods caused the drifts of earlier heading and maturity, longer in culm length, linear increase in number of spike and yields per unit area, slight reduction in 1000 grain weight, and slight increase in one litre weight, but no changes in number of grain per spike.

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Statistical Genetic Studies on the Selection for Grain Characteristics of Malting Barley (Hordeum distichum L.) (맥주맥(Hordeum distichum, L.)의 우량품종 육성에 있어서 입형질의 선발에 관한 통계유전학적 연구)

  • Bong-Ho Lee;In-Gul Lee
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.21 no.1
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    • pp.71-81
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    • 1976
  • This study was carried out to attain the selection information on grain characters of malting barley. Indirect selection, making use of information on grain thickness, seemed to be an effective method for the selection of 1, 000 grain weight, grain hull and grain yield which were directly affected by grain thickness. Grain yield which had a direct effect on grain, meal and protein content seemed to be an effective selection indicator for them, however, a better method is expected upon improvement of indirect effects of hull and grain yield.

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