한빛사 논문
한양대학교
Abstract
Do-Yeong Kim, Weon-Sun Shin*
Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 133-791, Republic of Korea
*Corresponding author.
Abstract
Interpolymeric complexes of bovine serum albumin (BSA)/fucoidan (weight ratio of 5:1) were prepared by decreasing pH in the absence and presence of NaCl. The turbidity drastically increased at pH 4.5 (pHφ1) and the maximum biopolymer interactions induced at pH 4.0 (pHopt). The viscosity of BSA/fucoidan complexes at pH 4.0 was 1.5 times higher than that of individual protein solutions. These results reflected that both BSA and sulfated dominant fucoidans (NH3+ and -SO3-) favored the formation of BSA/fucoidan complexes with very dense and compact internal structures. On the other hand, increasing NaCl concentration (from 0 to 1 M) shifted the critical pH (pHφ1) to a more acidic value, which may be explained by salt screening. Interestingly, 0.01 M of NaCl dissociated the aggregated BSA/fucoidan complexes into a soluble state at pH = 4.5.
논문정보
관련 링크
연구자 키워드
연구자 ID
관련분야 연구자보기
소속기관 논문보기
관련분야 논문보기
해당논문 저자보기