• Title/Summary/Keyword: amion acid

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Early Effective Parenteral Nutrition for Preterm Infants (미숙아의 효과적인 조기 정맥영양)

  • Lee, Byong-Sop
    • Neonatal Medicine
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    • v.16 no.2
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    • pp.110-120
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    • 2009
  • Mimicking fetal nutrition is the goal of early paretneral nutrition (PN) in very low birth weight infants, however the limited metabolic capacity of immature organs raises concern about the toxicity of metabolites to the developing brain. Starting parenteral amino acids from the first day of life, with a rate of 1.0 to 1.5 g/kg/day, is generally recommended to prevent endogenous protein breakdown by maintaining a positive nitrogen balance. A greater of amino acid infusion rate in the range of the fetal transfer rate (3.5-4.0 g/kg/day) is well tolerated during the early days after birth in VLBWI, however the influence on growth and long-term neurodevelopmental outcome remains unknown. Limited data are available from controlled trials regarding the effects of early supplementation with lipid emulsions on neonatal morbidity. Considering the role of long-chain polyunsaturated fatty acids in the neurodevelopment, the choice of an optimal lipid emulsion should be based on the quality as well as the quantity of the lipid contents. Little is known about the clinical benefit of higher rates of glucose infusion by permitting high serum glucose level or co-administration with insulin.

Varietal Difference of Seed Protein Content and Amion Acid Composition in Rapeseed (유채의 단백질함량과 아미노산조성의 품종간 차이)

  • Bang, Jin-Ki;Lee, Jung-Il;Chung, Dong-Hee;Kim, Ki-Joon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.35 no.5
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    • pp.464-475
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    • 1990
  • To obtain the basic informations about the repeseed Quality improvement, If varieties were analyzed for their seed protein content and amino acid composition, and discussed comparing to several other oilseed crops or varietal origin and seed weight or maturity. Total protein content of the tested varieties were ranged from 15.3 to 36.2% with mean protein content of 23.2%. The highest protein content was recorded in B. hirta var. Ochre, whereas the lowest in B. napus var. Mirado. Grouped by seed weight, small seed varieties were higher in protein content. A high negative correlation (-0.524) was observed between the content of protein and oil. Further, more the relationship between protein content and 1,000 seed weight was also very significant with the correlation coefficient of -0.622. The amino acid composition of rapeseed meal was characterized by a relatively high methionine and lysine content. Main amino acids were glutamic and aspartic acid in rapeseed.

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Effect of a Number of Organic Sources on the Ammonification and Nitrification of Urea and Soil Reaction (요소의 암모니아화 및 질산화와 토양반응에 미친 수종 유기물의 영향)

  • 오왕근;허지희;김재영
    • Asian Journal of Turfgrass Science
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    • v.5 no.1
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    • pp.47-53
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    • 1991
  • A laboratory experiment was conducted in order to learn the effect of a number of organic matters on the ammonification and nitrification of urea, and the reaction of soil, applied to a loamy upland soil poor in orgnic matter(<1.5%, without plants 1.The ammonification of urea was most pronounced in one week period immediatly after fertilizer and water treated, after which a rapid decrease of it was followed showing no accumulation at the end of 3rd week. Owing to the accumlation of ammonium, pHs of treated soils were read 7.0 to 7.3 from 6.8~6.9. 2.Nitrification was also progressed rapidly in the first one week period so that the accumulation of NO$_3$-N surpassed that of ammonia during this period. After the 1st week the accumulation of N0$_3$-N was continuously increased showing the maximum at the end of 4 weeks following a sharp decrease at the end of 5th weeks. The accumulation of NO$_3$-N dropped soil pH from 6.8-7.0 to 6. 0-6.2,but the decrease of NO-N at the end of 5th weeks brought up soil pH to 6.4-6.6. again. 3.Amino acid fermentation byproduct rich in salt, paticularly chloride, slowed down the ammonification and nitrification of urea. 4.The application of organic matter diminished the acidifying effect of chemical fertilizers. The diminishing effect of soluble humic acid and amion acid fermentation byproduct showed greater than that of solid organic matter in this experiment, which might be own to the application of a rather small amount of water soluble organic matters. Rice straw powder among solid organic matters appeared to be the least in the diminishing effect above. It may be reasoned that these soluble organic matters decomposes rapidly so as to affect Soil pH, but solid organic matters, particularly the rice straw powder, form acidic humus.

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Fermentation of Doenjang Prepared with Sea Salts (천일염으로 제조한 된장의 발효특성)

  • Kim, Sul-Hee;Kim, Seon-Jae;Kim, Bo-Hee;Kang, Seong-Gook;Jung, Soon-Teck
    • Korean Journal of Food Science and Technology
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    • v.32 no.6
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    • pp.1365-1370
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    • 2000
  • Deonjang prepared with sea salts(Shinan-docho product, Thai-land product, refined product and Austrailia salt product) were analyzed for pH, acidity, reducing sugar, amino type nitrogen and free amino acids. Amino type nitrogen as major element was highest in fermenting for 30 days as 315.3 mg% in deonjang prepared with Shinan-docho salts, but deonjang prepared with imported salts were $265.1{\sim}263.3\;mg%$. Sum of free amion acids for 30 days were 4,527 mg% in deonjang prepared with Shinan-docho salts, but lower in deonjang prepared with imported salts. Each amino acid content of deonjang prepared with Shinan-docho salts, which were glutamic acid and aspartic acid had much higher level than others.

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A Study on Components of Pollen Load (花紛荷(pollen load)의 성분조성에 관한 연구)

  • Kim, Jung-Hun;Lee, Kyu-Han;Kim, Eul-Sang;Park, Sung-Bae
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.21 no.5
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    • pp.566-572
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    • 1992
  • Proximate composition and the contents of free sugars, minerals, fatty acids, amino acids and in vitro digestibility of mixed pollen load were analyzed. The protein in pollen load per 100g was 25.2g, lipid 5.4g, non-fibrous carbohydrate 50.0g and fiber 10.4. Free sugars in pollen load, as dry basis g per 100g, was fructose 26.6g, glucose 13.1g, sucrose 0.2g, maltose 1.3g, melezitose 0.02g and F/G ratio was 2.0. The content of mineral in pollen load was in the order K > P > Mg > Ca > Fe > Na > Mn > Zn > Cu. Unsaturated fatty acid of pollen load was about 69.1% and polyunsalturated fatty acid being about 50.3%. The ratios of SFA : MUFA : PUFA and PUFA : SFA were 0.61 : 0.37 : 1.00 and 1.63 respectively. The total amino acid contained in pollen load 22,337.5mg/100g and total essential amino acid was 39.2% of the total amino acid. proline was the most abundant amino acid (2,824.7 mg/100g),followed by Glu, Leu, Asp, Val, Phe, Ile, Ala and Thr. E/T ratio of protein in pollen load was 2.03 ; protein score, 65.2(Lys) : A/E ratio(egg), 61.7(Lys) : amino acid score, 51.7% after 1hr and on non-fibrous carbohydrate was 80.6%. But that of protein was 67.3% after 1hr, 75.5% after 2hr.

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Chinese yam necrotic mosaic virus Isolated from Chinese Yam in Korea (한국산 장마(Dioscorea oppasita cv. Jang-Ma)에서 분리한 Chinese yam necrotic mosaic virus)

  • Kang, Dong-Kyoon;Kondo, Toru;Shin, Jong-Hee;Shin, Hye-Young;Sung, Jung-Hyun;Kang, Sang-Gu;Chang, Moo-Ung
    • Research in Plant Disease
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    • v.9 no.3
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    • pp.107-115
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    • 2003
  • Chinese yam (Dioscorea opposita cv. Jang-Ma) plants showing necrotic mosaic symptom were collected from their growing fields in Andong, Euisong, Gunwi and Daegu, Korea. Direct negative stainning method by electron microscope showed filamentous particles of about 660 nm in length. Immunosorbent electron microscopy (ISEM) revealed filamentous particles of 660nm decorated with antiserum of Chinese yam necrotic mosaic virus (ChYNMV). The virues purified partially were used to isolate viral RNA as template for RT-PCR to amplify about 1.2 kbp of 3'-terminal region (coat protein, 3'-UTR) with ChYNMV specific and oligo-dT primers. Amino acids sequences of amplified CP genes revealed that the viruses shared 97.9% similarity with ChYNMV (AB044386) wh ich was known as the member of Macluravirus. So the viruses from Chinese yam (D. opposita cv. Jang-Ma) plants were identified as ChYNMV. Comparing the CP amion acid sequences of ChYNMV strains with other macluraviruses such as Cardamon mosaic virus (CdMV), Narcissus latent virus (NLV) and Maclura mosaic virus (MacMV) revealed that N-terminal was the most varialbe region and conserved regions were present within the genus Macluravirus.

Studies on Free Amino Acids Composition of Salted Internal Organs of Several Fishes (어류내장(魚類內臟) 숙성(熟成)젓의 Free Amino Acids 조성(組成)에 관(關)한 연구(硏究))

  • Shin, Dong-Wha;Kim, Hyong-Soo
    • Applied Biological Chemistry
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    • v.9
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    • pp.83-90
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    • 1968
  • In order to elucidate the differences among the parts of internal organs of salted fishes (Chang Zut), five parts of the organs were examined for their chemical constituents including amino acids. The moisture content varied from 59.8% to 72.8% Crude protein; 7.13% to 11.19%, Crude ash; to 16.1%, 24.8%, Sodium chloride; 15.3% to 22.4% and ash; 0.8% to 2.2%. Seven essential amino acids including leucine, isoleucine, phenylalanine, tryptophan, threonine, lysine and methionine except valine were existed in the every part of the organ. The contents of tyrosine and hydroxyproline were relatively high, on the other hand, tryptophan was trace amount in the every parts.

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