• Title/Summary/Keyword: 분함량

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국내산 홍화씨 부위별추출물의 이화학적특성, serotonin화합물 및 acacetin의 함량 비교

  • 김준한;김종국;강우원;김귀영;박필숙;박모라;문광덕
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 2003.10a
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    • pp.154-154
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    • 2003
  • 국내산 홍화씨를 부위별(Whole, Coat and Endosperm)로 분리한 후 추출용매, 볶음조건, 효소가수분해 등의 처리조건을 달리하여 추출된 추출물의 이화학적특성과 기능성성분 함량을 분석, 비교하였다. 홍화씨 부위별추출물의 고형분함량은 60%에탄올배유부분추출물이 11.29%로, 19$0^{\circ}C$, 30분 볶음처리배유추출물이 14.53%로, amyloglucosidase 처리배유추출물이 24.21%로 높은 고형분이 추출되었다. 총페놀함량은 추출용매의 에탄올농도가 증가함에 따라 증가하는 경향이었고, 80% 에탄올점질추출물이 965mg%로 가장 높았으며, 21$0^{\circ}C$, 30분 볶음처리껍질추출물이 756 mg%로, celluase처리껍질추출물이 1170mg%로 높은 함량이었다. 총플라보노이드함량은 80%에탄올전체추출물이 317 mg%로, 21$0^{\circ}C$, 30분 볶음 처리배유추출물이 488 mg%로, $\beta$-amylase 처리전체추출물이 554 mg%로 높은 함량이었다. 유리당 중 sucrose함량은 21$0^{\circ}C$, 10분 볶음처리배유추출물이 123.4 mg%로, 60%에탄올배유추출물이 57.0 mg%로, Celluase 처리배유추출물이 67.1 mg%로 가장 높은 함량이었고, 또한 glucose, fructose, xylose 및 arabinose 등도 함유하고 있었다. 유기산 중 citric acid 함량은 20%n 에탄올배유추출물이 243.3 67.1 mg%로, 21$0^{\circ}C$, 30분 볶음처리전체추출물이 76.3 mg%로, amyloglucosidase 처리배유추출물이 699.3 mg%로 가장 높은 함량이었고, 또한, oxalic, malic, succinic, acetic 및 fumaric acid 등도 확인되었다. Serotonin 화합물 중 serotonin- I 함량은 100% 에탄올껍질추출물이 431 mg%로, 21$0^{\circ}C$, 10분 볶음처리껍질추출물이 192 mg%로, amyloglucosidase 처리껍질추출물이 256 mg%로 가장 많았다. 또한, Serotonin-II함량은 100%에탄올껍질추출물이 763 mg%로, 17$0^{\circ}C$, 10분 볶음처리전체추출물이 312 mg%로, amyloglucosidase 처리껍질추출물이 456 mg%로 가장 많았다. Acacetin 함량은 80%에탄올배유추출물이 34.9 mg%로, 21$0^{\circ}C$, 30분 볶음처리배유추출물이 221.0 mg%로, amyloglucosidase 처리배유추출물이 27.8 mg%로 가장 많았다.

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A Study on the Soybean Curd(Tofu) made from Defatted Soybean Flour (탈지 대두분을 이용하여 제조한 두부의 품질 특성에 영향을 미치는 인자)

  • Kim Jin-Hee;Woo Eun-Yeol;Kim Kang-Sung;Kim Myung-Hee
    • The Korean Journal of Food And Nutrition
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    • v.19 no.1
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    • pp.22-27
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    • 2006
  • This study was carried out to determine the optimum conditions for making soybean curd(or tofu) from defatted soybean flour.. Heating soymilk above $80^{\circ}C$ for at least $5{\sim}10\;min$ was necessary for soybean protein to form aggregates during subsequent coagulation process with glucono-${\delta}$-lactone(GDL). For maximum yield of tofu, with water content of approximately 80%, extra addition of 20 g of oil and 5 g of GDL per 425 g of soybean flour was needed. Maintaining soymilk temperature around $75^{\circ}C$ for 5 min was necessary when GDL was used as the coagulant.

Studies on the Biochemical Features of Soybean Seeds for Higher Protein Variety -With Emphasis on Accumulation during Maturation and Electrophoretic Patterns of Proteins- (고단백 대두 품종 육성을 위한 종실의 생화학적 특성에 관한 연구 -단백질의 축적과 전기영동 유형을 중심으로)

  • Jong-Suk Lee
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.22 no.1
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    • pp.135-166
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    • 1977
  • Some biochemical features of varietal variation in seed protein and their implications for soybean breeding for high protein were pursued employing 86 soybean varieties of Korea, Japan, and the U.S.A. origins. Also, studied comparatively was the temporal pattern of protein components accumulation during seed development characteristic to the high protein variety. Seed protein content of the 86 soybean varieties varied 34.4 to 50.6%. Non-existence of variety having high content of both protein and oil, or high protein content with average oil content as well as high negative correlation between the content of protein and oil (r=-0.73$^{**}$) indicate strongly a great difficulty to breed high protein variety while conserving oil content. The total content of essential amino acids varied 32.82 to 36.63% and the total content of sulfur-containing amino acids varied 2.09 to 2.73% as tested for 12 varieties differing protein content from 40.0 to 50.6%. The content of methionine was positively correlated with the content of glutamic acid, which was the major amino acid (18.5%) in seed protein of soybean. In particular, the varieties Bongeui and Saikai #20 had high protein content as well as high content of sulfur-containing amino acids. The content of lysine was negatively correlated with that of isoleucine, but positively correlated with protein content. The content of alanine, valine or leucine was correlated positively with oil content. The seed protein of soybean was built with 12 to 16 components depending on variety as revealed on disc acrylamide gel electrophoresis. The 86 varieties were classified into 11 groups of characteristic electrophoretic pattern. The protein component of Rm=0.14(b) showed the greatest varietal variation among the components in their relative contents, and negative correlation with the content of the other components, while the protein component of Rm=0.06(a) had a significant, positive correlation with protein content. There was sequential phases of rapid decrease, slow increase and stay in the protein content during seed development. Shorter period and lower rate of decrease followed by longer period and higher rate of increase in protein content during seed development was of characteristic to high protein variety together with earlier and continuous development at higher rate of the protein component a. Considering the extremely low methionine content of the protein component a, breeding for high protein content may result in lower quality of soybean protein.n.

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Analysis of Nonstarch-polysaccharides in Some Korean Foods (일부(一部) 한국산식품(韓國産食品)의 비전분다당류(非澱粉多糖類) 분석(分析))

  • Kim, Eun-Hee;Maeng, Young-Sun;Woo, Soon-Ja
    • Korean Journal of Food Science and Technology
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    • v.25 no.4
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    • pp.299-306
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    • 1993
  • Determination of dietary fiber contents in some Korean foods was attempted by Englyst's gas chromatographic and colorimetric methods which measure the nonstarch polysaccharide (NSP) contents NSP values, except seaweeds, by gas chromatography (x) and colorimetry (y) were very closely correlated (y=1.01x-0.52, r=0.997, n=9), NSP values by gas chromatography were lower than total dietary fiber (TDF) Haloes by AOAC method. By adding lignin to NSP values, relation between the two methods was improved. But, TDF values (y) by adding lignin to NSP values and TDF values (x) by AOAC method were related as y=0.68x-0.64 and F=0.903(n= 12), which was not closely related.

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Qualities of Bread and Changes in Phytic Acid during Breadmaking with Whole Wheat Flour (전립분 첨가빵의 품질과 제빵 과정 중 Phytic Acid 변화)

  • 김영호
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.5
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    • pp.779-785
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    • 1996
  • The qualities of bread and change of phytic acid during breadmaking with whole wheat flour were investigated. The ratios of ash contents in wheat flour and whole wheat flour were 0.41% and 1.57%, respectively. The ratios of fiber contents in wheat flour and whole wheat flour were 0.14% and 1.83%, respectively. In amino acid analysis, glutamic acid was determined to be 32~36g/100g protein, which was the highest. Lysine, glycine, arginine and aspartic acid were higher in whole wheat flour than those of wheat flour. Proline, glutamic acid, and phenylalanine were higher in wheat flour than those of whole wheat flour. The ratio of phytic acid content in wheat flour and whole wheat flour was 0.312% and 0.734%, respectively. The content of phytic acid during beadmaking was decreased approximately 65% after proofing, while this was almost constant in the process of oven baking. The content of phytic acid in bread with 3% yeast had less hydrolysis than that in bread with 5% yeast during breadmaking. The phytic acid content in the 0.1% yeast food was decreased more than the 0, 0.3, and 0.5% yeast food groups. As the amount of whole wheat flour increased, the volume of bread was decreased, and color became dark. The sensory evaluation was showed the quality of bread to be the highest when the amounts of coarse whole wheat flour and fine whole wheat flour was 20% and 30%, respectively. Though the amount of coarse whole wheat flour and fine whole wheat flour were increased up to 30% and 50%, respectively, external characteristics of bread was remained in normal.

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The Effect of Moisture Control on Fermentation Characteristics of Barley and Rye Silages (수분 조절이 보리와 호밀 silage의 발효특성에 미치는 영향)

  • Lee, Jong-Chan;Kim, Sam-Churl
    • Journal of agriculture & life science
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    • v.44 no.1
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    • pp.25-32
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    • 2010
  • This study examined the effect of moisture level at ensiling on fermentation characteristics of barley and rye silage. The moisture levels, 60 (low; LM), 70(medium; MM) and 80% (high; HM), were controled by adding water or pre-wilting. Barley silage had higher pH and latate:acetate ratio in LM than the other treatments, but those of rye in MM were higher. The concentrations of lactate, total FA and acetate in HM were higher than the other treatments, but propionate concentration in LM was higher than HM. Total N concentrations of barley and rye were highest in MM and LM, respectively. The $NH_3-N$ concentration and total N:$NH_3-N$ ratio of barley were higher in HM than those in LM and MM. With increasing moisture content, buffering capacity of barley and rye silages increased, whereas decreased by increase of pH. There was a negative correlation between moisture content vs. pH of barley and rye silages. However, moisture content vs. the concentrations of total VFA and $NH_3-N$ and the ratio of total N:$NH_3-N$ had a positive correlation. Tn conclusion, the ideal moisture content of barley and rye for silage was 70-80%, but silage quality could be rapidly decreased by pre-wilting to 60% moisture content.

배추 및 무의 Glucosinolate 분석과 가공처리중 항암물질의 형성

  • 강갑석
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 1993.12a
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    • pp.12-13
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    • 1993
  • 십자화과 채소에는 여러종류의 glucosinolate가 존재하며 이들 중 특히 indolw형 glucosinolate는 여러가지 요인에 의해 분해되어 항암효과를 나타내는 물질들을 생성한다고 보고 되고 있다. 이에 다라 우리나라 농가에서 대량 생산되고 있는 십자화과 채소인 배추 및 무에서 항암전구물질인 indole glucosinolate를 포함한 glucosinolate를 분석 및 동정하고 가공처리조건에 따라 항암물질인 indoleacetonitrile과 indolemethanol의 함량을 측정하였다. 1. GC 및 GC-MS를 이용하여 배추, 무의 품종별 ; 이들 씨에서 4-8종류의 glucosinolate를 동정하였다. 2. Thymol에 의한 총 glucosinolate의 함량은 배추 및 무에서는 복돌이 배추와 왕관무가 3.21, 2.0$\nu$mole/g으로 가장 많았고 배추씨, 무씨에서는 각각 6.38, 4.07$\nu$mole/g이었다. 3. 배추 및 무의 저장중 총 glucosinolate함량은 저장 기간이 지남에 따라 점차 감소하는 경향이였다. 4. 열처리 시간에 따른 배추와 무의 indoleacetonitrile함량은 열처리 시간이 지남에 따라 증가하며 40분 열처리시 최대치를 나타내었다. 5. indolemethanol이 생성될때 방출되는 배추, 무, 배추씨 및 무씨의 Thiocyanate ion의 함량은 열처리 시간이 지남에 따라 증가하며 40분 열처리시 최대치를 나타내었으며 자가분해에 따른 함량도 분해시간이 경과함에 따라 증가하며 30분경과시는 최대치를 나타내었고 이는 40분 열처리시보다 많은 함량이였다.함량이였다.

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꽃사슴의 단백질 요구량에 관한 연구

  • 양시용
    • Korean Deer Journal
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    • no.18
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    • pp.2-10
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    • 1993
  • 본 시험은 3마리의 2년생 famale sika deer에게 동일한 에너지 수준하에 단백질 함량($7\%,\;12\%\;17\%$)이 각기 다른 사료를 급여하였을 때, 사료 영양소의 이용성 변화 및 체내 N 대사, 유지를 위한 단백질 요구량, 대사성 분질소 함량 등을 규명하기 위하여 실시하였으며, 결과를 요약하면 다음과 같다. 1. DM, OM, ADF의 소화율을 사료내 단백질 함량에 따른 차이를 보이지 않았으며(P>.1), CP의 소화율은 사료내 단백질 수준이 증가함에 따라 향상되었다(P<.05). 2. 사료내 단백질 함량이 증가함에 따라 분과 뇨로의 N 배출량 모두 증가하였으며(P<.05), 사료내 단백질 수준이 7, 12, $17\%$ 이었을 때 N retention은 각각 26.9, 31, 8, $38.9\%$였다. 3. 혈증 urea-N 함량은 사료내 단백질 함량의 증가에 따라 현저하게 증가하였다.(P<.05) 4. Famale sika deer의 유지수준의 단백질요구량(protein requirement for maintenance)은 $1.81g/kgW^{0.75}/d$다. 5. 대사성 분 질소(metabolic facal N)함량은 $0.32g/kgW^{0.75}/d$였다.

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Taste Characteristics and Functionality of Two Stage Enzyme Hydrolysate from Low-Utilized Longfinned Squid (창오징어 2단 효소분해엑스분의 정미특성 및 기능성)

  • 오광수
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.5
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    • pp.782-786
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    • 2001
  • The taste characteristics and functionality of low-utilized small longfinned squid as affected by two stage enzyme hydrolysis were examined. In taste active-components, total free amino acid contents in hot-water and autolytic extract, two stage enzyme hydrolysate (TSEH) of longfinned squid were 2,792.5 mg%, 8,393.8 mg% and 9,186.1 mg%, respectively. The major free amino acids were Pro, Leu, Glu, Tau, Lys, Arg, Phe, Val and Ile. As for quarternary ammonium bases, betaine was the principal component (593.8 mg%) and also contents of TMAO, AMP in longfinned squid TSEH were 234.8% mg% and 51.0 mg%, respectively. The major inorganic ions in TSEH were Na(874.0 mg%), K (398.2 mg%), Cl (1,213.1 mg%) and PO$_4$(995.9 mg%). From the results in sensory tests, TSEH was superior to other extracts on the aspects of taste characteristics such as umami intensity, sweetness, taste harmony and transparency of extract. Also TSEH of longfinned squid revealed very higher Angiotensin-I converting enzyme inhibition ratio (92.1%) than those of hot-water and autolytic extract.

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하계 전기, 전자연합학술회의 및 산학협동 심포지엄 초록

  • 대한전기학회
    • 전기의세계
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    • v.27 no.5
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    • pp.33-54
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    • 1978
  • (차례) 1.산학협동심포지업 (1)우리나라에서의 연구개발과 산학협동 (2)산학협동과 산업계의 역할 (3)산학협동의 현황과 진로 2.학술회의A (1)전력게통의 계층구조와 협조원리에 관한 연구 (2)2중층괴상회전자 유도전동기의 이론해석 (3)초고주파가열장치에 사용하는 철공진변압기의 해석적 설계 (4)한국전기기시험연구소 대전력단락 시험설비설계 (5)직류전동기제어를 위한 Thyristor Chopper정류회로에 관한 연구 (6)선로의 개폐정보를 포함하는 전력계통의 상태추정 (7)단일신경세포에 대한 ITEM 신호 특성 3.학술회의B (1)MMM-1 Computer System의 설계 및 제작 (2)Adaptive Delta Modulation System의 성능비교 연구 (3)6GHZ FMD마이크로파 무선전송장치의 개발 (4)적선도에 의한 회로망함수의 결정 (5)동맥혈압의 해석과 그의 전기적 유사모델 (6)피부감각의 정보전달 특성에 관하여 (7)선형직접회로의 공정설계 및 그 특성 조성 (8)DH L.D의 전기적포화현상에 관한 이론적 해석 (9)Potocoupler를 이용한 Isolator 4.학술회의C (1)Al-Al$_{2}$O$_{3}$ -Al박막구조의 전기적 특성 (2)이종금속에 샌드위치된 고분자물질의 단락전조 (3)유전체가 일부체워진 직 6면체의 캐비티의 다중모오드 해석 (4)반도체 가스 검지소자의 제조 및 그의 전기적 특성 (5)실리콘 산화공정에 대한 실험적 고찰 (6)진공증착법에 의한 InSb 박막제도에서 열처리효과 (7)(Ba$_{1}$-xBix) Tio$_{3}$ PTC thermistor의 첨가량의 최적건안 (8)금속박막증착시 두께조절 5.특별강연회 (1)일본에 있어서의 절력계통공학연구 (2)Linear Motor의 최근개발동향량도 높았다. valine과 leucine 및 aspartic acid, glycine과 glutamic acid, leucine과 aspartic acid 간에는 고도의 정상관, glycine과 serine, valine과 phenylalanine, threonine과 proline, phenylalanine과 arginine, methionine과 glutamic acid, histidine과 lysine 간에는 유의 정상관, 그리고 isoleucine과 lysine 간에는 유의한 부상관이 있었다. 4. lysine 함량은 단백질 함량과 정산곤, isoleucine 함량은 단빅질 함량과 부상관을 보였으며, alanine, valine, leucine 함량은 지방함량과 각각 유의한 정산관을 보였다. 5. 대두 단백질은 7.5% acrylamide gel 전기영동에 의해 품종에 따라 12~16개의 구성분으로 분리되었으며, 이들중 주구성분들은 상대이동도가 0.06(a), 0.14(b). 0.24(d) 이었고, 구성분 b의 함량이 품종간에 가장 변이가 컸으며, 구성분 b는 그밖의 주요 구성분들의 함량과 부의 상관이 있었고, 구성분 a는 단백질 함량과 정상관이 있었다. 6. 종실단백질 구성분들의 조합 특성 면에서 공시 86품종은 11개 유형군으로 분류되었으며, 우리나라와 일본품종은 미국품종에 비해 단백질구성분 조성이 훨씬 다양하였다. 7. 이동도가 매우 빠른 단백질 구성분 o(Rm 0.77) p(Rm 0.81)를 모두 갖고 있는 품종은 3품종, 모두 갖고 있지 않은 품종은 1품종이었고, 나머지 82품종은 o나 p중 한 구성분을 갖고 있었으며 그 분포율은 30 : 65 이었는데 미국계 품종은 우리나라 품종에 비해 구성분 o를 간고 있는 비율이 현저히 적었다. 8. 대두 종실은 개화후 22일까지 완만히, 그 이후 20~30일간 급속히

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