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투석과 건조방법이 다시마(Laminaria japonica) 알긴산의 물성에 미치는 영향

Effects of Dialysis and Various Drying Methods on Physical Properties of Alginates Prepared from Sea Tangle, Laminaria japonica

유병진|임영선
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)|2005.08|한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)|제38권 제4호|pp. 226-231

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참고문헌

주제분류수산학

초록

Abstract

To investigate the physical properties of sea tangle (Laminaria japonica) alginates, extracted by the Mexican process, the effects of extracting time and drying methods on intrinsic viscosities, MWs and DPs of alginates were examined. The MWs of alginates before and after dialysis decreased with increase of extracting time. The MWs before dialysis were lower than those after dialysis. The ash contents before dialysis decreased with increase of extracting time. After dialysis the ash contents of the alginates showed 10.4-10.9% of those, which were little affected by extracting time. In the ash composition after dialysis, the sodium content was 4.4g/100g, 90% of total ash content. The ash contents, the intrinsic viscosities, the average molecular weight and the DPs of the alginates dried by AD before dialysis were higher than those by VF. The ash and uronic acid contents of alginates after dialysis showed 10.6-10.9% and 88.1-88.9%, respectively. But the intrinsic viscosities, the MWs and DPs of the alginates after dialysis gradually decreased by following dry methods. The decreased order was ADAD, ADVF, VFAD, VFVF. The coefficient of determination between MWs and DPs in the alginates having more than 300kDa was 0.999.

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