• Title/Summary/Keyword: 일반성분

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Proximate Compositions and Sensory Attributes of Soybean Sprouts with Recommended Soybean Cultivars (장려품종 나물콩으로 재배한 콩나물의 일반성분 및 관능적 특성)

  • Lee, Kyong-Ae;Kim, Yong-Ho;Kim, Hee-Sun
    • Journal of the East Asian Society of Dietary Life
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    • v.26 no.4
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    • pp.325-333
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    • 2016
  • This study investigated the proximate compositions and sensory attributes of fresh and boiled soybean sprouts. The sensory attributes of cooked soybean sprouts (Kongnamulmuchim) were also assessed after boiling and seasoning. Proximate compositions were analyzed from the total sprout, cotyledon and hypocotyl without hair root. Soybean sprouts cultivated with four recommended soybean cultivars (Nokchae bean, Dawon bean, Seonam bean and Pungsannamul bean) in a lab and then used for analysis. Carbohydrate, protein, lipid and ash contents were lower, while moisture was lower, in the cotyledon than in the hypocotyl of fresh soybean sprouts, regardless of the bean type. Each soybean sprout showed different contents of chemical constituents in total sprout, cotyledon, and hypocotyl parts. Sensory attributes such as odor, flavor, and overall acceptability were evaluated. Each panels showed a response on a 9-point rating scale. The acceptability of fresh soybean sprouts was negatively correlated with beany and grassy tastes, but positively correlated with nutty and sweet tastes. The acceptability of boiled soybean sprouts was negatively correlated with beany and grassy flavors, and positively correlated with nutty odor and flavor. In addition, acceptability of cooked soybean sprouts (Kongnamulmuchim) was positively correlated with nutty and sweet flavors. The beany and grassy flavors limited acceptability of fresh soybean sprouts, whereas the prominence of nutty flavor might contribute to acceptance of boiled and cooked soybean sprouts.

Analysis of General Components, Mineral Contents, and Dietary Fiber Contents of Synurus deltoides (수리취(Synurus deltoids)의 일반성분, 무기질 및 식이섬유에 관한 연구)

  • Park, Min-Hee;Choi, Byoung-Gon;Lim, Sang-Hyun;Kim, Kyung-Hee;Heo, Nam-Ki;Yu, Seong-Hee;Kim, Jong-Dai;Lee, Kwang-Jae
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.11
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    • pp.1631-1634
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    • 2011
  • This study was conducted to estimate the general components, minerals, and dietary fiber contents of Synurus deltoides. S. deltoides contained 81.1% moisture content, and the proportions of crude fat, crude protein, crude ash, and crude fiber were 0.3%, 4.2%, 2.6%, and 3.5%, respectively. Potassium (3,249.1 mg) was the most abundant component among the minerals in S. deltoides. In addition, S. deltoides contained many other minerals, e.g. calcium (854.8 mg), phosphorus (60.3 mg), magnesium (344.7 mg), sodium (57.3 mg), zinc (1.7 mg), iron (30.9 mg), copper (0.8 mg), and manganese (5.8 mg). Almost all of the mineral contents of S. deltoides were higher than those of Aster scaber and Ligularia fischeri, except for zinc, copper, and manganese. Total dietary fiber (TDF), insoluble dietary fiber (IDF), and soluble dietary fiber (SDF) contents of S. deltoides were 42.6 g, 37.9 g, and 4.7 g, respectively, and these were also higher than those of A. scaber and L. fischeri used in this study. These results suggest that S. deltoides may be a valuable nutrient source.

The Comparison in the Physicochemical Properties of Sesame Seeds by Producing Areas (산지에 따른 참깨종자의 이화학적 특성 비교)

  • Lee, Min-Jung;Kim, Ki-Hong
    • Applied Biological Chemistry
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    • v.48 no.2
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    • pp.128-131
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    • 2005
  • Sesame seed is known as a good nutritional source containing high oil (51%) and protein (20%). Sesame oil contains a very high oxidative stability compared to other vegetable oils. To obtain basic information for quality evaluation, imported and domestic sesame seeds were investigated to measure general components (ash, protein, moisture and oil), fatty acid composition and lignan content. Although the protein contents were the highest in domestic sesame seeds, yet the lipid contents were the highest in imported sesame seeds. Unsaturated fatty acids such as oleic acid and linoleic acids were the highest in the domestic sesame seeds. Lignan contents, the most important component known as antioxidant, were significantly higher in domestic sesame seeds than other imported sesame seeds. These results suggest that domestic sesame seed may have the best quality in terms of the functional components.

The Nutritional Components of Buckwheat Flours and Physicochemical Properties of Freeze-dried Buckwheat Noodles (메밀의 영양성분과 냉동건조 막국수의 이화학적 성질)

  • 이상영;심호흠;함승시;이해익;최용순;오상룡
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.20 no.4
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    • pp.354-362
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    • 1991
  • To investigate nutritional and biochemical values of buckwheat, amino acids and minerals in buckwheat harvested from Kangweon-do were analysed. Mixed flour between buckwheat and wheat were made to be used for buckwheat noodle and were also analysed minerals and major nutrients in composite flours. When three different levels of flour mix were compared, major nutrients were about same among those mixes but minerals were higher by adding more buckwheat flour, especially by adding more imported buckwheat flour. From this mixed flour, 9 minerals and 16 amino acids including 9 essential amino acids were analysed. Contents of selenium, sodium and magnessium were very high in buckwheat flour, Therefore, nutritional value of domestic buckwheat was highly evaluated. BAP method was used to determine the change of gelatinization in the noodles prepared by extruder at 8$0^{\circ}C$, and in the noodles during freeze drying and refrigeration. 70% of gelatinization was done during noolding process and retrogradation was severe during refrigeration.

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Comparison of the nutritional compositions of oxidative stress-tolerant transgenic rice and conventional rice (산화 스트레스 내성 형질전환 벼 현미의 주요 영양성분 분석)

  • Woo, Hee-Jong;Shin, Kong-Sik;Lim, Myung-Ho;Park, Soon Ki
    • Journal of Plant Biotechnology
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    • v.41 no.4
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    • pp.206-211
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    • 2014
  • Nutritional assessment of transgenic crops to improve safety evaluations is important for food production. An oxidative stress-tolerant rice was generated by stable insertion of the TC gene-a tocopherol cyclase isolated from tobacco-into the genome of a common variety of japonica colored rice. The nutritional composition of the brown rice grains from the transgenic TC line was compared with that of the parental rice cultivar Heugnambyeo and two different varieties of non-transgenic rice. The results indicate that the analyzed nutritional compositions of the brown grains from the transgenic TC line were within the range of values reported for other commercial lines, and measurements of nutritional compositions were equivalent to those of the non-transgenic rice.

진공동결건조 후 두부의 수분활성 및 품질변화에 관한 연구

  • 김진성;이준호;하영선
    • 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.163.1-163
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    • 2003
  • 식품의 건조는 저장성을 향상시키고 수송을 간편하게 하나 특별한 경우는 건조과정에서 일어나는 성분변화에 의해 풍미, 색깔, 조직 등이 향성되게 하는 경우도 있다. 그러나 일반적으로 건조에 의해 풍미의 저하, 색깔의 퇴조, 영양성분의 손실 및 조직과 형태의 손상 등 품질을 저하시키므로 가능한 저온에서 단시간에 수분을 제거해야 한다. 건조식품의 저장성은 수분활성도, 제품의 종류, 저장온도등 다양한 요인들에 영향을 받으며, 특히 수분 활성도에 따라 비효소 갈색화 반응, 지방의 산패, 미생물의 발생정도가 달라진다. 따라서 건조식품 저장시 변질을 방지하기 위해서는 식품의 수분함량을 측정할 수 있는 등온흡습곡선을 작성하는 것이 중요하다. 또한 식품의 단분자층 수분함량을 결정하고, 흡습에 필요한 에너지를 구함으로서 건조식품의 저장조건 및 포장조건의 선택시 유용한 자료가 된다. 특히 식품분말의 흡습특성은 분말입자의 크기, 형태, 화학성분 등과 밀접한 관련이 있다. 위의 사실로 미루어 볼 때 본 연구에서는 시판 유통되고 있는 두부를 진공동결 시킴으로써 위생화와 장기저장 가능성을 연구하면서 진공동결 건조 후 시료의 수분활성, 재수화 및 일반성분 변화를 검토하고자 한다.

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Chemical Composition of Cultured and Wild Codonopsis lanceolata Roots of Different Age Groups -I. Proximate Composition, Minerals and Protein Fractions- (더덕(沙蔘)의 년근별(年根別) 화학성분(化學成分)에 관(關)한 연구(硏究) -제1보(第1報) : 일반성분(一般成分), 무기질(無機質) 및 단백질(蛋白質) 분획(分劃)-)

  • Park, Boo-Duck;Park, Yong-Gone;Choi, Kwang-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.14 no.3
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    • pp.274-279
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    • 1985
  • Proximate compositions, minerals and protein fractions of the roots of cultured and wild Codonopsis lanceolata of different age groups were examined as the basic research for the study of their source of processed foods. The most abundant proximate composition of the roots of C. lanceolata was observed to be total sugars and next come crude protein, crude fiber, crude fat and ash in descending order irrespective of cultured and wild ones. The richest mineral contained in the roots was noticed to be K and followed by Mg and Ca. Generally increased tendency of crude protein, fat, ash, K, Mg, Ca, Mn, Zn, Cu and P contents were observed with older roots, however, decreased total sugars and Fe content. Lead and cadmium content was far bellow the authorized tolerance limits. The quantitative fractionation of the protein of the roots ranked albumin the highest content, followed by globuin, prolamin and glutelin. Decreased albumin content was observed with the older age roots, while increased globulin, prolamin and glutelin content. The minimum solubility of the soluble protein of the roots was found to be at pH 4.0 and maximum, at pH 10.0. Disc gel electrophoresis of the soluble protein of C. lanceolata roots showed almost similar patterns and numbers of bands. The molecular weight for main band protein was estimated to be about 90,000.

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Comparison of Physicochemical Composition of Three Species of Genus Angelica (당귀의 종별 이화학적 성분비교)

  • Lee, Jae-Joon;Kim, Ah-Ra;Seo, Young-Nam;Lee, Myung-Yul
    • Food Science and Preservation
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    • v.16 no.1
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    • pp.94-100
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    • 2009
  • This study compared the major chemical components of Angelica gigas of Korea, A. acutiloba of Japan, and A. sinensis of China. A. gigas had the highest crude fat level, A. acutiloba the highest moisture content, and A. sinensis the greatest crude protein level. The main free sugar was fructose in three species. Total amino acid contents of A. gigas, A. acutiloba and A. sinensis were 4,178.64 mg%, 2,952.10 mg%, and 3,367.13 mg%, respectively. Although amino acid compositions of the three species were different, arginine, proline and lysine were the major amino acids in all species. The main saturated fatty acid was caproic acid in A. gigas and palmitic acid in A. acutiloba and A. sinensis. Linoleic acid, linolenic acid, and oleic acid were the main unsaturated fatty acid in all three species. Oxalic acid was the major organic acid in the three species. Vitamin A contents of A. gigas, A. acutiloba, and A. sinensis were 5.10 mg%, 6.32 mg%, and 6.11 mg%, respectively. However, vitamin E was detected only in A. gigas, at 0.47 mg%.. The mineral contents of the three species were (in order of concentration) K, Mg, Fe, and Na.

돈피의 부위별 특성과 이화학적 성분분석

  • Jeon, Gi-Hong;Kim, Yeong-Bung;Yang, Seung-Yong;Lee, Nam-Hyeok;Mun, Yun-Seon;Park, Mi-Seon;Jang, Ae-Ra
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2005.10a
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    • pp.107-110
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    • 2005
  • 돈피를 부위별로 분류하여 일반성분, 아미노산, 지방산, 색도, 조직감, 관능평가를 실시하였다. 일반성분은 등 부위를 제외한 부위들이 비슷한 수치를 보였고 아미노산은 앞다리 부위와 뒷다리 부위가 필수 아미노산 함유량이 더 높은 것으로 나타났다. 돈피의 지방산 함량은 부위에 따라서는 크게 차이가 나타나지 않았으며 지방산의 종류별로는 oleic aicd의 함량이 가장 많았고, 색도는 붉고 황색기가 적으며 명도가 높은 등 부위와 배 부위가 높은 수치를 보였고 이는 관능에 영향을 미쳐 명도가 낮고 붉은 황색을 띄는 앞다리보다 높은 기호도를 보였다.

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A study on the change of macrominerals in rice Dasik according to the added level of mulberry leaf powder (뽕잎분말 첨가비율에 따른 쌀다식의 다량무기질 함량변화에 관한 연구)

  • 김애정;여정숙;김영호;우경자
    • Proceedings of the KAIS Fall Conference
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    • 2001.05a
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    • pp.49-52
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    • 2001
  • 뽕잎은 본초강목과 동의보감에 소갈증, 뇌졸중 등에 효과가 있다고 기록되어 있으며 최근의 과학적인 연구결과서도 중국의 전통생약으로 당뇨병을 예방, 치료하며 잎에는 flavones, steroids, triterepenes, 다량무기질 성분이 함유되어 있다. 이외에도 여러 생리활성에 대한 연구가 밝혀지고 있으며 다방면에서의 이용가능성과 기능부여에 대한 기능성소재로서의 이용가치가 높은 것으로 사료되나 아직 식생활에 응용되는 실질적인 연구가 매우 미비한 상태이다. 따라서 본 연구에서는 혈압조절에 효과가 있는 다량무기질(칼슘, 칼륨, 마그네슘)함량이 풍부한 다식을 제조하고자 뽕잎분말을 여러 비율(0-4%)로 첨가하여 관능평가, 일반성분 및 무기질함량 등을 분석한 결과 뽕잎분말을 2%첨가한 다식의 관능평가가 가장 우수하였으며 일반성분과 무기질함량은 뽕잎의 첨가비율이 높을수록 유의적으로 증가되었다.