• 제목/요약/키워드: protein contents

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불포화 고지방식을 섭취한 흰쥐의 체내지질대사에 대한 대두 단백질과 칼슘의 섭취 효과 (Effects of Soy Protein and Calcium on Lipid Metabolism in Rats Fed Unsaturated Fat Diet)

  • 이연숙;박주란
    • 한국농촌생활과학회지
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    • 제6권1호
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    • pp.31-39
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    • 1995
  • This study was performed to observe how soy protein and calcium in rats fed unsaturated fat-enriched diet affect the total lipid and cholesterol contents of blood and tissues male Sprague-Dawley rats weighing approximately 220g were fed four purified diets which contained 18% (w/w) corn oil, 1% (w/w) cholesterol, two sources of protein : casein or isolated soy protein (ISP) and two levels of dietary calcium : 0.1% or 1.0%, first for four weeks (Expt. 1) and second for eight weeks (Expt. 2). The contents of total lipid, cholesterol and triglyceride in blood, liver, heart and feces were determined. After four weeks feeding, the serum lipid and cholesterol concentration was not significantly different among the groups. After eight weeks feeding, these concentrations were significantly lower in ISP-High calcium group. The serum lipid concentration was influenced by dietary protein sources and calcium levels. These results indicated that the hypolipidemic effects of soy protein and high calcium intake were partly due to decrease in lipid absorption and these effects were not detected at 4 weeks feeding but 8 weeks feeding.

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Effects of Aluminum Sulfate and Protein Levels on Broiler Performance

  • Park, I. H.;K. H. Nahm
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2002년도 가을 학술발표논문집
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    • pp.103-105
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    • 2002
  • This study was conducted to determine how broiler performance with the level of crude protein(23 CP%, 21 CP% and 19 CP%) can be changed and affected, adding Alum(Al$_{2}$(SO$_{4}$)$_{3}$ㆍ14H$_{2}$O) and no Alum in litter(two ALUM levels and 3 Protein levels with 2$\times$3 factorial design). Alum was added as a top dressing to the litter at a rate of 200g ALUM / kg of rice bran. With the exception of the protein levels for feed :gain(P〈 0.05), there were no significant differences in feed intake, weight gain and feed :gain of chicks. For ammonia gas emission, both the main effects of Alum and protein(P〈 0.01 and 0.05) at 3weeks and interaction between Alum and protein(P〈 0.05), the main effect of Alum(P〈 0.01) at 6weeks did affected them. In litter excluded the main effects of Alum(P〈 0.05), there was a significant difference among N contents ranged from pH to the rate of C: Organic-N(P〈 0.01).

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Comparison of Total Protein, DNA, and RNA Contents by Corpus Luteum in Various Stages of Estrous Cycle and Pregnancy

  • K. S. Baek;Kim, Y. S.;Lee, C. N.
    • 한국동물번식학회:학술대회논문집
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    • 한국동물번식학회 2001년도 춘계학술발표대회
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    • pp.79-79
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    • 2001
  • This study was conducted to measure the total protein, DNA, and RNA contents of corpus luteum(CL) in various stages of estrous cycle and pregnancy. CLs were collected from a local slaughterhouse and stages of the estrous cycle of CL were classified as CL1~2, days 1 to 10; CL3(with/without central cavity), days 11 to 17; CL4, days 18 to 20 by method of Ireland et. al(1980) and stages of the pregnancy of CL were classified as P1~3, months 11~3: P4~6, months 4~6; P7~9, months 7~9 of pregnancy. CL3 with/without central cavity(CC) was identified as described by Kastelic et. al.(1990)-CL with CC, more than 2mm in diameter; CL without CC, less than 2mm in diameter. In total protein content, CL3 with CC was significantly lower than P7~9(p<.05). The total DNA content was lower in CL3 with CC than CL3 without CC and CL4(p<.05). In protein : DNA ratio, CL3 with CC was significantly lower than CL4(p<.05), CL3 without CC was significantly lower than P7~9(p<.05), CL4 was significantly lower than CL3 with CC, P1~3 and P7~9(p<.05). No differences were observed in RNA content, protein:RNA ratio, RNA/DNA of CLs in stages of estrous cycle and pregnancy.

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미나리의 단백질의 및 아미노산 조성 (Protein and Amino Acid Composition of Water Cress Oenanthe stolonifera DC)

  • 문숙임;조용계;류홍수
    • 한국식품영양과학회지
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    • 제19권2호
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    • pp.133-142
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    • 1990
  • This study was attempted to compare the nutritive value of leaf with stem of the water cress Oenanthe stolonifera DC. in order to improve the eating habits and as a part of studying on the effective curing nutrients for the damaged liver. The contents of moisture crude proteinon the effective curing nutrients for the damaged liver. The contents of moisture crude protein crude fat and crude ash were 90.40% 2.85%, 0.42% and 0.74% in leaf while the contents of moisture crude protein crude fat and crude ash were 95.15% 0.77% 0.09%, and 0.64% of moisture crude protein crude fat and crude ash were 95.15% 0.77% 0.09% and 0.64% in stem respectively. The quantitative fractionation of proteini of both leaf and stem ranked albumin the highest content followed globulin prolamin and glutelin in order. It has been sh-own by SDS-polyacrylamide gel electrophoresis that water extractable protein of leaf 11 bands but those of stem were not detected. The scope of molecular weight for the main protein of water extractable protein of leaf was between 34.700 and 45,000. The amounts of extractive-nitrogen from leaf and stem of the water cress were 241.02mg% and 271.67mg% respec-tively. The amounts of free amino acid-nitrogen from the leaf and stem were 89.02mg% and 32.02mg% respectively. In free amino acid-nitrogen from the leaf and stem were 89.02mg% and 32.02mg% respectively. In free amino acid composition of both leaf and stem the major components were aspartic acid and glutamic acid. In total amino acid composition of water cress leaf aspartic and glutamic acid were the major components. Whereas alanine and thr-eonine were the major components in stem The assessment of water cress leaf and stem with chemical score. EAAl Rl showed that the values of stem were lower tendancy than those of leaf. Limiting amino acid of leaf was tryptophan while that of stem was lysine.

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밀가루 단백질 함량이 데니쉬 페이스트리 냉동생지의 품질 특성에 미치는 영향 (The Effect of Flour′s Protein Contents to the Properties of the Danish Pastry Made with Frozen Dough)

  • 윤미숙
    • 한국식품영양학회지
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    • 제17권3호
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    • pp.322-327
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    • 2004
  • 단백질 함량이 다른 밀가루로 데니쉬 페이스트리를 직날법으로 제조 후 급속 냉동시켜 냉동고에 12주간 저장하면서 4주 간격으로 해동ㆍ발효ㆍ굽기 한 제품의 부피, 수분함량, 조직감 및 품질평가의 결과는 다음과 같다. 1. 단백질 함량이 높은 밀가루로 만든 냉동 생지 제품의 부피가 가장 컸다. 2. 단백질 함량이 높은 밀가루로 만든 냉동 생지 제품의 수분함량이 높게 나타났으나 그 차이는 크지 않았다. 3. 단백질 함량이 높은 밀가루로 만든 냉동 생지 제품의 경도가 높게 나타났다. 4. 종합적인 품질평가는 단백질 함량이 높은 밀가루로 만든 냉동 생지 제품에서 높은 점수를 얻었다. 이상의 결과로 데니쉬 페이스트리 냉동 생지 제조시 단백질 함량이 높은 밀가루를 사용할 때 제품의 부피, 수분 함량, 품질 평가 등에서 우수한 효과를 나타냈으나 경도에는 그렇지 않았다.

보리 단백질의 특성과 지역간 변이 (Quantity and Quality of Seed Protein and Its Regional Variation in Barley)

  • 남중현;이은섭;홍병희;김기준
    • 한국작물학회지
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    • 제35권5호
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    • pp.387-392
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    • 1990
  • 보리 양질 다수성품종 육성을 위하여 단백질 함량의 품종별, 지역별 변이, 품종별 아미노산조성 및 단백질 함량과 농업형질과의 관계를 구명하여 단백질이 양과 질을 개선할 수 있는 기초자료를 얻고자 수행한 연구결과를 요약하면 다음과 같다. 1. 보리의 단백질 함량은 겉보리 12.0-15.7%, 쌀보리 9.2-15.4%, 맥주보리 11.4-15.9% 범위의 변이를 보이고, 겉보리 품종이 맥주보리나 쌀보리 품종들 보다 높았다. 2. 보리중 필수아미노산 함량은 쌀보리가 맥주보리, 겉보리에 비해 높았다. 3. 단백질 함량은 재배지역에 따라 큰 변이를 보였는데 3맥종 모두 중부지방에서 생산한 것이 남부지방에서 생산한 것보다 높았다. 4. 단백질 함량과 출수기와의 관계는 겉보리에서는 유의성 있는 부의 상관을 보였으나 쌀보리, 맥주보리에서는 뚜렷한 경향이 없었다. 5. 찰보리 및 통보리 001의 숙기 isogenic line을 이용하여 숙기에 따른 단백질 함량의 변이를 조사한 결과 조숙이 만숙보다 단백질 함량이 높은 편이었다.

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배합사료의 단백질 및 지질 함량이 종어(Leiocassis longirostris Gunther) 치어의 성장과 체성분에 미치는 효과 (Effect of Dietary Protein and Lipid Levels on the Growth and Body Composition of Juvenile Long Snout Bullhead Leiocassis longirostris Gunther)

  • 임상구;한형균;방인철;최진;이상민
    • 한국수산과학회지
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    • 제46권4호
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    • pp.377-383
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    • 2013
  • We ran a feeding trial to determine optimal dietary protein and lipid levels for growth of juvenile long snout bullhead Leiocassis longirostris Gunther. Eight experimental diets (P20L7, P20L14, P30L7, P30L14, P40L7, P40L14, P50L7 and P50L14) were formulated to contain 20%, 30%, 40% or 50% protein combined with either 7% or 14% lipid. Three replicate groups of fish (mean mass: 3.9 g/fish) were fed one of the experimental diets ad libitum for 8 weeks. Survival of fish fed the P20L14 diet was lower than that of fish fed the P40L14, P50L7 and P50L14 diets. Growth of fish fed diets containing 7% lipid increased with increasing protein level (up to 50% protein); growth of fish fed diets containing 14% lipid increased with increasing protein level (up to 30% protein). The feed efficiency of fish fed a diet with 50% protein and 7% lipid was higher than that of other groups. Whole body moisture and lipid contents were affected by dietary lipid level but not by dietary protein level. The crude lipid contents of fish fed 14% lipid diets were higher than those fed 7% lipid diets across all protein levels (other than the 50% level). Thus, under our experimental conditions, an increase in dietary protein level improved growth and feed efficiency of fish; a diet containing 50% protein with 7% lipid was optimal for growth and effective feed utilization in juvenile long snout bullhead.

백삼 단백질의 가열특성과 분자량 측정 (Measurement of Molecular Weight and Heating Properties of Korean White Ginseng Protein)

  • 박상욱
    • 한국식품영양학회지
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    • 제17권1호
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    • pp.66-71
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    • 2004
  • 백삼단백질의 가열에 의한 내열특성을 알아보기 위하여 가열시간에 따른 내열성 단백질의 함량과 전기영동패턴을 조사하고, CM-cellose 컬럼크로마토그라피 방법으로 얻어진 분획을 가열하여 내열성 단백질과 비내열성단백질의 이온성분의 단백질함량을 분석하고 분자량을 확인하였다. 그 결과 가열시간에 따른 내열성 단백질의 함량은 주근 중심이 주근 주피보다 전체적으로 높았으며 두부위 모두 가열시간이 90분 이후부터는 감소하는 경향이 커졌다, 가열시간에 따른 내열성 단백질량은 가열시간이 길어짐에 따라 단백질은 감소하였고, 가열시간 30분까지는 66, 45, 29, 24, 22, 20, 12 kD 등 7개의 밴드가 가열시간 60분부터는 분자량 22 kD는 소실되었음이 확인되었다. 단백질 함량은 내열성 단백질이 비내열성 단백질보다 높게 나타났으며, 내열성 단백질 함량은 양이온성 단백성분 분획이 28.24%로 음이온성 단백성분 0.80%보다 훨씬 높았다. 내열성 단백질의 분자량은 66, 55, 36 kD 임을 확인하였다.

향끽미종 연초의 한국, 그리스간 생태비교 연구 (II) 건조엽의 화학 성분 (ECOLOGICAL STUDY OF AROMATIC TOBACCO IN KOREA AND GREECE II. CHEMICAL COMPOSITION OF CURED LEAVES)

  • 김용옥;류명현;손현주;라효환
    • 한국연초학회지
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    • 제9권1호
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    • pp.19-26
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    • 1987
  • KA 101 and Xanthi-Basma were cultivated in Korea and Greece to compare the respective responses to environments on their leaf composition during 1984 and 1985. Cured leaves cultivated in Greece had brighter and greenish color with 2-4 times higher total chlorophyll and carotenoids showing higher contents of total nitrogen, nicotine, petroleum ether extract, volatile acids and neutrals, but crude ash and pH of leaves at top stalk position were lower than in Korean cultured leaves. Xanthi-Basma showed higher contents of nicotine and total nitrogen, but lower contents of reducing sugar than KA 101. There were no difference in crude ash, petroleum ether extract contents and pH of leaves. Among stalk positions, the upper stalk leaves in Greece had higher contents of total nitrogen, protein nitrogen, nicotine, petroleum ether extract and volatile acids but lower contents of reducing sugar than lower ones., whereas the supper stalk leaves in Korea had much higher contents of total nitrogen, protein nitrogen, pH, crude ash, but not higher contents of petroleum ether extract and volatile acid contents than lower stalk position. It suggest that in chemical criteria the better quality leaves are on the upper stalk position in Greece but not the same in Korea probably due to the rainy weather conditions during the later growth stage in Korea.

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