• Title/Summary/Keyword: 종자수득율

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A Study on the Seed Characteristics and Germination Percent of Several Native Herb Species (자생 초본류 몇 종의 종자특성과 발아율에 대한 연구)

  • 김갑태
    • Korean Journal of Environment and Ecology
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    • v.18 no.1
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    • pp.1-6
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    • 2004
  • Seed characteristics-weight, seed length and width, pure seed percentage are measured on 15 native herb species, and seeds of six native herb species were tested on the seedbed in the forest with autumn seeding. Seeds of 13 species including Aster scaber were very small; seed length is less than 7mm and seed width is less than 3mm pure seed percentages of 10 native herb speciesin-cluding Ligularia fischeriwere were much lower than 5%. Germination percent of five native herb species were significantly different among the growing sites. The mean germination percent was highest 47.00% for Angelica gigas, 38.25% for Ligularia fischeri, 30.88% for PimPinella brachycarpa, 15.75% for Aralia continetalis, 10.00% for Cirsium setidens, and the lowest 9.32% for Aster scaber.

Studies on the Protein of Peach seed flour (복숭아 종자의 단백질에 관한연구)

  • Lee, Kang-Ja
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.17 no.1
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    • pp.43-49
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    • 1988
  • The proteins of peach seed four was examined to utilize protein source. The peach seed flour contained 20.38% of crude proteins. The extractability of salt souble proteins of seed were 70% and recovery rate of main protein fractions separated by sephadex G-200 were about 51%. The electrophoretic analysis showed 11 bands and molecular weight showed 14,000-110,000 in seed proteins. The Amino acid of peach seed flour and isolated were mainly composed of arginine, asparic acid. glutamic acid, glycine and leucine. The solubility of isolated peach seed protein was lowest at pH 5.5.

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Studies on the Development of Food Resources from Waste Seeds -I. Chemical Composition of Grape Seed- (폐엽종실(廢棄種實)의 식량자원화(貪糧資源化)에 관(關)하여 -제(第) 1 보(報) : 포도씨의 화학적(化學的) 조성(組成)-)

  • Yoon, Hyung-Sik;Kwon, Joong-Ho;Hwang, Joo-Ho;Choi, Jae-Chun;Shin, Dae-Hyn
    • Korean Journal of Food Science and Technology
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    • v.14 no.3
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    • pp.250-256
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    • 1982
  • A series of studies were conducted to find out the possibility of utilizing grape seed as resources of food fats and proteins, and the results of the studies are as follows: The grape seed contained 25.1%, of crude fat and 12.0% of crude protein. The lipid, fractions obtained by silicic acid column chromatography were mainly composed of about 95.5% neutral lipid, whereas compound lipid was only 4.5% level. Among the neutral lipid by thin layer chromatography, triglyceride was 91.89%, sterol ester, sterol, diglyceride and free fatty acid were 3.24%, 2.87%, 1.20% and 0.80%, respectively The predominant fatty acids of total and neutral lipids were linoleic acid $(69.72{\sim}71.72%)$ and oleic acid $18.09{\sim}19.46%)$, but those of glycolipid and phospolipid were linoleic acid $(31.49{\sim}38.18%)$, oleic acid $(20.20{\sim}35.27%)$ and palmitic acid $(26.80{\sim}39.98%)$. The major fatty acids of triglyceride separated from neutral lipid were oleic acid (43.08%), linoleic acid (38.42%) and palmitic acid (11.60%). The salt soluble protein of grape seed was highly dispersible in 0.02M sodium phosphate buffer containing about 1.0M $MgSO_4$, and the extractability of seed protein was 31%. Glutamic acid was the major amino acid in salt soluble protein, followed by arginine and aspartic acid. The electrophoretic analysis showed 3 bands in grape seed protein, and the collection rate of the main protein fraction purified by Sephadex G-100 and G-200 was 82%. Glutamic acid, aspartic acid and arginine were the major amino acids of the main grape seed protein. The molecular weight for the main protein of the grape seed was estimated to be 81,000.

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