• Title/Summary/Keyword: Fucoidan

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Pretreatment Conditions of Porphyra yezoensis, Undaria pinnatifida and Laminaria religiosa for Functional Alage-Tea (기능성 해조차의 소재로 활용을 위한 김, 미역 및 다시마의 처리조건)

  • 조길석;도정룡;구재근
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.2
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    • pp.275-280
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    • 1998
  • The possibility of utilizing Porphyra yezoensis, Undaria pinnatifida and Laminaria religionsa into algae-tea having biological functionality was investigated by analysis of functional component, experimentation for low viscosity and various pretreatments. In water soluble fraction of powdered algae extracted for 3 minutes with 30 times of hot wate, major functinal components were composed of 1.53% porphyran and 170.04mg% taurine in P. yezoensis, 1.09% fucoidan and 1.18% sodium sodium alginate in U. pinnatifida, and 1.28% fucoidan, 1.99% soidum laginate and 371.25mg% iodine in L.religiosa, on dry basis. For lowering viscosity and masking off-flavor in each water soluble fraction, it was desirable that P. yezoensis was washed for 12 hours in sea water and 30 mimutes in fresh water, dried at 3 to 5$^{\circ}C$, powdered to size of 30 mesh nd then roasted for 3 minutes at 12$0^{\circ}C$, and that both U. pinnatifida and L. religiosa were washed, semidried to 40~50% moisture content, heated for 40 minutes at 12$0^{\circ}C$ by autoclave, dried, powdered to size of 30 mesh and then roasted for 5 minutes at 11$0^{\circ}C$.

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Effects of Sea Tangle (Laminaria japonica) and Fucoidan Components on the Attack of Oxygen Radicals in Kidney (신장의 활성산소 공격에 대한 다시마(Laminaria japonica)와 후코이단 성분의 영향)

  • CHOI Jin-Ho;KIM Dae-Ik;PARK Soo-Hyun;KIM Dong-Woo;KOO Jae-Geun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.32 no.6
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    • pp.758-763
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    • 1999
  • The protective effects of sea tangle (Laminaria japonica) extract and fucoidan components on the attack of oxygen radicals in kidney were studied, Sprague-Dawley (SD) male rats (210 $\pm$ 5 g) were with fed experimental diets of Dasi-Ex group (sea tangle extract powder of $4.0\%$ added to control diet), Euco-I, II and III groups (fucoidan powder of 1, 2 and $3\%$, respectively, added to Dasi-Ex group) for 45 days, Hydroxyl radical formations were significantly decreased ($10\~15\%$ and $15\~30\%$) in mitochondria and microsomes of Dasi-Ex and Fuco-I, II, III groups compared with control group. Hydrogen peroxide formations were also significantly decreased ($10\~15\%$) in microsomes of Dasi-Ex and Fuco-I, II, III groups compared with control group. Significant differences in mitochondrial basal oxygen radical (BOR) and microsomal induced oxygen radical (IOR) formations of Dasi-Ex and Fuco-I groups could not be obtained, but mitochondrial BOR and microsomal IOR formations were significantly decreased ($12\~15\%$ and $13\~14\%$) in Fuco-II and III groups compared with control group. BOR formations were significantly decreased ($12\~25\%$) in microsomes of Dasi-Ex and Fuco-I, II, III groups, and IOR formations were also significantly decreased ($10\~15\%$) in mitochondria of Fuco-I, II, III groups compared with control group, Significant differences in mitochondrial Mn-SOD activities of Dasi-Ex group could not be obtained, but mitochondrial Mn-SOD activities were dose-dependently increased by $8\%,\;16\%$ and $36\%$ in Fuco-I, II and III groups compared with control group, Mn-SOD activities an microsome were significantly increased about $20\%$ in Dasi-Ex group, while they were remarkably increased about $40\%$ in Fuco-I, II and III groups compared with control group. lipid peroxide contents were significantly decreased about $15\%$ and $15\~25\%$ in mitochondria and microsomes of Fuco-II and III groups. Membrane fluidities resulted in marked increases ($20\~35\%$ and $17\~24\%$) in mitochondria and microsomes of Dasi-Ex and Fuco-I, II and III groups. These results suggest that administrations of fucoidan added to sea tangle may play a pivotal role in attenuating attack of oxygen radicals in kidney.

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Effects of Organic Salts Fortified with Seaweed Components on Blood Pressure, Serum Minerals, and Hematochemicals in Spontaneously Hypertensive and Normotensive Rats (해조성분 강화염이 본태성 고혈압쥐와 정상혈압쥐의 혈압, 혈청 중 미네랄 함량 및 생화학적 특성에 미치는 영향)

  • Kim, Young-Myoung;Byun, Jee-Young;Han, Chan-Kyu;Sung, Ki-Seung;Namgung, Bae
    • Korean Journal of Food Science and Technology
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    • v.41 no.2
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    • pp.196-202
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    • 2009
  • The effects of the salts fortified with seaweed functional components on blood pressure, serum minerals, and hematochemicals in spontaneously hypertensive rats (SHR/NCrj) and normotensive rats (WKY/NCrj) were investigated. SHR and WKY rats were assigned to four groups, with 8 and 6 rats in each group: laver salt (A), fucoidan+laver high salt (B), fucoidan + laver low salt (C) and refined salt as a control (D). The final blood pressure (BP) of SHR and WKY species in contrast with reference BP were low in groups A and C as compared with control group. In terms of serum mineral content, $Na^+$ levels were similar in SHR and WKY, but $K^+$ levels were higher in the group B in SHR. Serum triglyceride levels were lower in groups A and C, but the levels of HDL- and LDL- cholesterol were significantly higher and lower in group A than those of controls, respectively (p<0.05). These results demonstrated that the salts fortified with laver might suppress blood pressure in rats, and also may improve mineral and lipid metabolism.

Chitosan Nanoparticle System for Improving Blood Circulation (혈행개선을 위한 키토산 나노입자화)

  • Lee, Ji-Soo;Yoon, Hyun-Sook;Kim, Eun Suh;Nam, Hee Sop;Lee, Hyeon Gyu
    • Korean Journal of Food Science and Technology
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    • v.48 no.2
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    • pp.153-158
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    • 2016
  • The principal objective of this study was to produce a chitosan nanoparticle (NP) system for improving blood circulation. Chitosan NPs were prepared using fucoidan and $poly-{\gamma}-glutamic$ acid (PGA), denoted as CS/Fu and CS/Fu/PGA NPs, respectively. As the chitosan concentration was increased, the activated partial thromboplastin time (APTT) of the NPs significantly increased (p<0.05). When the concentration of fucoidan and ${\gamma}-PGA$ was 5-20 and $1-10{\mu}g/mL$, respectively, the size of the CS/Fu and CS/Fu/PGA NPs was approximately 200 and 100 nm, respectively. With an increase in the fucoidan and PGA concentration, the APTT of CS/Fu and CS/Fu/PGA NPs significantly increased (p<0.05). These results suggest that CS/Fu and CS/Fu/PGA NPs could be used as a potent NP system for improving blood circulation.

The Enzymatic Regulatory Effects of Laninaria japonica Fucoidan Extract in Hepatotoxicity (다시마 푸코이단 추출물의 간독성에서 효소 조절 효능에 관한 연구)

  • Kang, Kum-Suk;Nam, Chun-Suk;Park, Eun-Kyung;Ha, Bae-Jin
    • Journal of Life Science
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    • v.16 no.7 s.80
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    • pp.1104-1108
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    • 2006
  • The purpose of this study was to investigated the effects of Laminaria japonica fucoidan extract (LJFE) through the enzymatic regulation against the hepatotoxicity-inducing carbon tetrachloride $(CCl_4)$ in LJFE and $CCl_4-treated$ rats. LJFE of 100mg/kg concentration was intraperitoneally administered into rats at dose of 1.5m11kg for 14 days. On the day 15, 3.3ml/kg of $CCl_4$ dissolved in olive oil (1:1) was injected 12 hours before anesthetization. We examined the levels of glutamate oxaloacetate transaminase (GOT), glutamate pyruvate transaminase (GPT) in serum of rats, superoxide dismutase(SOD) in mitochondrial fraction, and catalase(CAT), glutathione peroxidase(GPx) in liver homogenate. $CCl_4-treatment$ markedly increased the levels of GOT and GPT, and significantly decreased those of SOD, CAT and GPx. But LIFE pretreatment decreased the levels of GOT and GPT, by 40% and 64%, respectively and increased those of SOD, CAT and GPx, by 114%, 36.1% and 55.9%, respectively These results showed the LIFE had the enzymatic regulatory effects against the hepatotoxicity-inducing $CCl_4$ in the preventive way.

Anti-cancer effects of kelp extract in mouse melanoma B16-F0 cell line through apoptosis (마우스 흑색종 세포주 B16-F0에서 다시마 추출물의 세포사멸을 통한 항암 효과)

  • Lee, Seong-Uk;Kim, Yoon Hee
    • Korean Journal of Food Science and Technology
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    • v.54 no.2
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    • pp.134-140
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    • 2022
  • Kelp belongs to the brown algae family and has been reported to exert anti-cancer effects on some cancer types, however studies have not been reported on the anti-cancer effects of kelp extracts on melanoma. In this study, the anti-cancer effects of kelp extract in B16-F0 cells were investigated, and the underlying molecular mechanisms were assessed. Kelp extract was found to inhibit the proliferation of B16-F0 cells, induce cytotoxicity, inhibit cell colony formation, and induce DNA fragmentation and apoptosis. The molecular mechanism was found to involve kelp extract increasing the expression of cytochrome-c and activated caspase-9 in the intrinsic apoptotic pathway. In addition, kelp extract upregulated the expression of Fas-associated protein with death domain and activated caspase-8 in the extrinsic apoptosis pathway. Activation of caspase-9 and caspase-8 by kelp extract induced activation of caspase-3 and cleaved poly adenosine diphosphate-ribose polymerase, consequently inducing apoptosis. These data suggest that kelp extract represents a potential therapeutic agent for melanoma.

Induction of apoptosis using the mixture of fucoidan and Crepidiastrum denticulatum extract in HepG2 liver cancer cells (후코이단/이고들빼기 혼합물에 의한 HepG2 간암세포의 apoptosis 유도)

  • Se-Eun Park;Dabin Choi;Kyo-nyeo Oh;Hanjoong Kim;Hyungbum Park;Ki-Man Kim
    • Food Science and Preservation
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    • v.31 no.2
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    • pp.276-286
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    • 2024
  • In the present study, we investigated whether a mixture of fucoidan and Crepidiastrum denticulatum extract (FCE) had the potential to improve the therapeutic efficacy of cancer treatment. The results demonstrated that FCE significantly reduced cell viability and induced the release of LDH (lactate dehydrogenase) and DNA fragmentation in HepG2 cells in a dose-dependent manner. In addition, FCE treatment also increased the protein expression level of p53, the release of cytochrome c, and the loss of mitochondrial membrane potential. Moreover, FCE dose-dependently increased protein expression levels of Bax, and cleaved caspase-3 and -9. However, FCE decreased the protein expression level of Bcl-2. These results suggest that FCE inhibits cell proliferation and induces apoptosis via the mitochondrial-mediated intrinsic pathway. The present study demonstrates that FCE can be used as an anti-cancer agent for liver cancer based on apoptosis mechanism.

미역 포자엽으로부터 fucoidan의 제조

  • 곽기석;이주항;조상원;윤영수;김상호;이태기;정규진;김선봉
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.10a
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    • pp.167-168
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    • 2001
  • 최근 세계적으로 기능성 식품에 관한 관심이 높아지고 이들의 생산을 위해 그 자원을 찾으려는 노력이 각 나라마다 큰 관심의 대상이 되고 있다. 그 중에서도 다양한 종류와 발전된 양식 기술의 발달로 매년 과잉 생산이라는 문제를 낳고 있는 해조류가 주목되고 있다. 국내에서도 이러한 관심으로 인하여 여러 가지 다양한 연구가 이루어지고 있지만 그 이용 실태는 아직 미약하다. (중략)

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Extraction of Fucoxanthin from Undaria pinnatifida and Stability of Fucoxanthin (미역으로부터 후코산틴 추출 및 후코산틴 안정성)

  • Shin, Soo Cheol;Ahn, Myeong Won;Lee, Jung Shik;Kim, Young Suk;Park, Kwon Pil
    • Korean Chemical Engineering Research
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    • v.51 no.1
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    • pp.42-46
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    • 2013
  • Extraction process of fucoxanthin from Undaria pinnatifida and stability of fucoxanthin was studied. In this study, to utilized extracted components as a functional food material, ethanol was used as a solvent. The maximum concentration of fucoxanthin was obtained when 80% ethanol solvent was used. The extraction yield of fucoxanthin increased as extraction temperature raised to $50^{\circ}C$. Water washing of raw material for 5 minutes reduced the salt content about 94%. From the experiment that fucoxanthin content reduced by 30% for 1 day storage at $70^{\circ}C$, it was demonstrated that fucoxanthin was thermal-unstable above $70^{\circ}C$. And experimental result of light- stability showed that fucoxanthin was very unstable with light.

Effects of Nature Herb Mixture Containing Laminaria japonica Areschoung on Fine Dust-induced Bronchitis in Mice (미세먼지로 유도된 기관지염증에 다시마가 함유된 복합물의 효과)

  • Han, Su-Hyun;Joo, In-Hwan;Lee, Su-Bin;Kim, Dong-Hee;Hyun, Ju-Myung;Park, Jong-Min
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.34 no.5
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    • pp.245-254
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    • 2020
  • The purpose of this study was to investigate the effects of natural herb mixture containing Laminaria japonica Areschoung (LAM) on fine dust-induced bronchitis in mice. Laminaria japonica Areschoung is main content of LAM, which is including fucoidan. Fucoidan extracted from phaophyta is known to prevent bronchitis and to defend against bacteria and virus infection. In this study, we experienced the effect of LAM on bronchitis and investigated gene expressions (e.g ; IL-8, COX-2, MCP-1) and bio-markers (e.g ; IL-8, PGE2, MUC5AC) associated with bronchitis by using A549 cells. Also, we investigated whether LAM can suppress the bronchitis in fine dust-induced animal models. We injected fine dust (50 ㎕) twice as INT (Intra-Nasal-Trachea) method. Then LAM (200 mg/kg and 400 mg/kg) were oral administered for 14 days. We analyzed the number of immune cells, immunoglobulin E, bio-markers level associated with bronchitis. LAM significantly decreased bio-marker (IL-1β, IL-6, IL-8, TNF-α, Histamine, PGE2), immune cells (white blood cell, neutrophil, lymphocyte, monocyte), and immunoglobulin E, that are increased by fine dust. Taken together, this study suggest that LAM can be used as effective herbal extract for bronchitis.