• Title/Summary/Keyword: aminoacid analysis

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Quality Improvement of the Human Hair by the Treatment of Protease Extracted from Earthworm

  • You, Se-Eun;Kang, Sang-Mo;Koh, Joon-Seok
    • Textile Coloration and Finishing
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    • v.21 no.5
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    • pp.1-9
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    • 2009
  • The feasibility of earthworm protease as a new cosmetic material for human hair care was investigated. The effectiveness of the earthworm protease treatment was assessed by thickness change of hairs, optical microscope examination, aminoacid analysis, surface morphology, angular resolution analysis through methylene blue staining method and tensile strength change. The protease treated hair became thinner and the soil on the surface removed in experimental groups unlike control group. Tensile strength decreased in experimental group in which the enzymes may decompose polypeptide bonds.

Characteristics of Proteins in Italian Millet, Sorghum and Common Meillet (조, 수수 및 기장의 단백질 특성)

  • 하영득;이삼빈
    • Food Science and Preservation
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    • v.8 no.2
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    • pp.187-192
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    • 2001
  • Amino acid composition of proteins in Italian millet, Common millet and sorghum were invstigated by HCI hydrolysis method. The optimum condition was obtained by hydrolysis at 110$\^{C}$ for 24hr. As major amino acids from protein hydrolyzate, the content of tyosine, arginine and phebylalanine were 7.06%, 6.79% and 6.44%, respectively. The content of glutamic acid in Common millet, Italian millet and Sorghum were 5.73%, 5.64% and 5.46%, respectively. Glycine content was about 2.93% in three samples. Contents of crude protein and pure protein in Italian millet, Common millet and sorghum were determined by micro-kjeldahl method. Crude protein contents were slightly higher than that of pure protein. Protein content of sorghum was higher than those of Italian millet and Common millet. For SDS-PAGE analysis, Italian millet showed more soluble proteins including 50kDa, 30kDa and smaller proteins than other cereals. In particular, Common millet and Sorghum only solubilized proteins less than 15kDa.

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Genomic Organization of Heat Shock Protein Genes of Silkworm Bombyx mori

  • Velu, Dhanikachalam;Ponnuvel, Kangayam M.;Qadri, Sayed M. Hussaini
    • International Journal of Industrial Entomology and Biomaterials
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    • v.15 no.2
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    • pp.123-130
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    • 2007
  • The Hsp 20.8 and Hsp 90 cDNA sequence retrieved from NCBI database and consists of 764 bp and 2582 bp lengths respectively. The corresponding cDNA homologus sequences were BLAST searched in Bombyx mori genomic DNA database and two genomic contigs viz., BAAB01120347 and AADK01011786 showed maximum homology. In B. mori Hsp 20.8 and Hsp 90 is encoded by single gene without intron. Specific primers were used to amplify the Hsp 20.8 gene and Hsp 90 variable region from genomic DNA by using the PCR. Obtained products were 216 bp in Hsp 20.8 and 437 bp in Hsp 90. There was no variation found in the six silkworm races PCR products size of contrasting response to thermal tolerance. The comparison of the sequenced nucleotide variations through multiple sequence alignment analysis of Hsp 90 variable region products of three races not showed any differences respect to their thermotolerance and formed the clusters among the voltinism. The comparison of aminoacid sequences of B. mori Hsps with dipteran and other insect taxa revealed high percentage of identity growing with phylogenetic relatedness of species. The conserved domains of B. mori Hsps predicted, in which the Hsp 20.8 possesses ${\alpha}-crystallin$ domain and Hsp 90 holds HATPase and Hsp 90 domains.

Molecular Cloning and Functional Analysis of Rice (Oryza sativa L.) OsNDR1 on Defense Signaling Pathway

  • Lee, Joo-Hee;Kim, Sun-Hyung;Jung, Young-Ho;Kim, Jung-A;Lee, Mi-Ok;Choi, Pil-Gyu;Choi, Woo-Bong;Kim, Kyung-Nam;Jwa, Nam-Soo
    • The Plant Pathology Journal
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    • v.21 no.2
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    • pp.149-157
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    • 2005
  • A novel rice (Oryza sativa L.) gene, homologous to Arabidopsis pathogenesis-related NDR1 gene, was cloned from cDNA library prepared from 30 min Magnaporthe grisea -treated rice seedling leaves, and named as OsNDR1. OsNDR1 encoded a 220-aminoacid polypeptide and was highly similar to the Arabidopsis AtNDR1 protein. OsNDR1 is a plasma membrane (PM)-localized protein, and presumes through sequence analysis and protein localization experiment. Overexpression of OsNDR1 promotes the expression of PBZ1 that is essential for the activation of defense/stressrelated gene. The OsNDR1 promoter did not respond significantly to treatments with either SA, PBZ, or ETP. Exogenously applied BTH induces the same set of SAR genes as biological induction, providing further evidence for BTH as a signal. Presumably, BTH is bound by a receptor and the binding triggers a signal transduction cascade that has an ultimate effect on transcription factors that regulate SAR gene expression. Thus OsNDR1 may act as a transducer of pathogen signals and/or interact with the pathogen and is indeed another important step in clarifying the component participating in the defense response pathways in rice.

Nutritional Composition, Ginsenoside Content and Fundermental Safety Evaluation with Leaf and Stem Extract of Panax ginseng (인삼잎과 줄기 혼합 추출물의 영양성분, Ginsenoside 함량 및 기본적 안전성 평가)

  • 한종현;박성진;안종남;위재준;김기영;박성혜
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.5
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    • pp.778-784
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    • 2004
  • This study was conducted to investigate the application possibility of leaf and stem extract (LSE) from the mixture of leaf and stem of Panax ginseng. This study measured the general nutritional composition, aminoacid minerals contents and fatty acid composition of LSE. We conducted analysis of the ginsenoside content by HPLC and the cell cytotoxicity tests in normal liver and kidney cells. The approximate composition of LSE was 2.51% of carbohydrate 0.53% of crude ash,0.20% of crude fat and 0.15% of crude protein, respectively. LSE contained 102.56 mg/100 g of K ion and high contents of acidic amino acids such as glutamic acid and aspartic acid. In addition to this, it contained all essential amino acids. The major compositions of fatty acids were 39.99% of palmitic acid 14.96% of linoleic acid, 13.31% of docosatetranoic acid and 12.91% of linolenic acid, The total ginsenoside was 0.82 mg/mL, and ratio of PD/PT was 0.68. Negative effects were not found from the results of the cell toxicity respection. These results imply that leaf and stem of Panax gineng could be used as possible food resources and functional food material and feed stuff.