• Title/Summary/Keyword: extract fractionation

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Studies on the Development of Natural Preservatives from Natural Products (전통식품 및 천연물에서 천연보존료 개발에 관한 연구)

  • Kim, Hee-Yun;Lee, Young-Ja;Hong, Ki-Hyoung;Kwon, Yong-Kwan;Lee, Ju-Yeun;Kim, So-Hee;Ha, Sang-Chunl;Cho, Hong-Yon;Chang, Ih-Seop;Lee, Chul-Won;Kim, Kil-Saeng
    • Korean Journal of Food Science and Technology
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    • v.31 no.6
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    • pp.1667-1678
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    • 1999
  • Certain parts of 190 kinds of medicinal herbs and 171 kinds of original materials of food were extracted by methanol. The extracts were tested their microbial inhibition activities against several food spoilage microorganisms, Micrococcus luteus, Bacillus subtilis, Bacillus cereus, Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella typhimurium, Escherichia coli, Saccharomyces cerevisiae, Candida albicans, Penicillium citrinum, Aspergillus flavus and Aspergillus niger. The methanol extracts of Cornus officinalis, Evodia officinalis, Glycyrrhiza glabra, Salvia miltiorrhiza. Schizandrae fructus, Coptidis rhizoma, aroma hop and bitter hop were shown inhibitory effect on certain species of gram(+) bacteria. Aroma hop and bitter hop were shown inhibitory effect on certain species of gram(-) bacteria. The methanol extract of Salvia miltiorrhiza exhibited a strong antibacterial activities. It was purified by solvent fractionation, silicagel column chromatography, prep. TLC, prep. HPLC. The purified active substance was identified as cryptotanshinone by EIMS, $1^H-NMR,\;{13}^C-NMR$ and DEPT. Cryptotanshinone showed a strong antibacterial activity against gram positive bacteria $(MIC\;:\;3.91{\sim}62.50\;{\mu}g/mL)$. Especially, this compound was the most strong activity against Bacillus subtilis $(MIC\;:\;3.91\;{\mu}g/mL)$.

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Activity-guided Purification of N-benzyl-N-methyldecan-1-amine from Garlic and Its Antitumor Activity against CT-26 Colorectal Carcinoma in BALB/C Mice (활성추적분리법에 의해서 순수분리한 마늘 N-benzyl-N-methyldecan-1-amine이 CT-26 세포주 이식 BALB/C mice의 항암효과)

  • Seetharaman, Rajasekar;Choi, Seong Mi;Guo, Lu;Cui, Zheng Wei;Otgonbayar, Duuriimaa;Park, Ju Ha;Kwon, Young-Seok;Kwak, Jung Ho;Kwon, Young Hee;Min, Ji Hyun;Kang, Jum Soon;Choi, Young Whan
    • Journal of Life Science
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    • v.29 no.10
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    • pp.1062-1070
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    • 2019
  • A components of garlic (Allium sativum) have anti-proliferative effects against various types of cancer. We aimed to investigate the capacity of garlic compounds to anti-tumor on a various cancer cell lines. Fractionation of garlic extract, guided by antiproliferative activity against human gastric cancer (AGS) cells, has resulted in the isolation of N-benzyl-N-methyldecan-1-amine (NBNMA). We investigated the effect of newly isolated NBNMA from garlic cloves on the inhibition of the growth of CT-26, AGS, HepG2, HCT-116, MCF7, B16F10, and Sarcoma-180 cells for in vitro and CT-26 colon carcinoma cells in vivo. NBNMA exhibited an antiproliferative effect in CT-26 cells by apoptotic cell death. NBNMA exhibited down-regulation of anti-apoptotic Bcl-2 proteins and up-regulation of apoptotic Bad protein expression in western blot analyses. In addition, NBNMA meagre activated caspase 3 and caspase 9, initiator caspases of the extrinsic and intrinsic pathways of apoptosis. NBNMA treatment at a dose of 10 mg/kg for 21 days in experimental mice implanted with tumors resulted in significant reduction of the tumor weight (43%). NBNMA exhibited both in vitro and in vivo anticancer activity. These results indicate that NBNMA has promising potential to become a novel anticancer agent from garlic cloves for the treatment of colon carcinoma cancer.