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논문 기본 정보

자료유형
학술저널
저자정보
박명규 (경기대학교) 하태열 (한국식품연구원) 신광순 (경기대학교)
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한국영양학회 한국영양학회지 한국영양학회지 제44권 제6호
발행연도
2011.12
수록면
474 - 480 (7page)

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Calcium (Ca) is an essential element to maintain body homeostasis. However, many factors disturb calcium absorption. Aspartic acid chelated calcium (AAC) was synthesized by new methods using calcium carbonate and aspartic acid. This study was carried out to investigate the bioavailability of AAC in Ca-deficient rats. The experimental groups were as follows: NC; normal diet control group, CD-C; untreated control group of Ca-deficient (CD) rats, CD-CaCO<SUB>3</SUB>; CaCO<SUB>3</SUB> treated group of CD rats, CD-AAC; AAC treated group of CD rats, and CD-SWC; and seaweed-derived Ca treated group of CD rats. The Ca content of various types of Ca was held constant at 32 mg/day, and the four CD groups were fed for 7 days after randomized grouping. Ca content in serum, urine, and feces within feeding periods were analyzed to confirm Ca absorption. Serum Ca content was significantly higher in the CD-AAC (11.24 mg/dL) and CDSWC (10.12 mg/dL) groups than that in the CD-C (8.6 mg/dL) group 2 hours following the first a dministration. The Ca content in feces was significantly lower in the CD-AAC (35.4 mg/3 days) and CD-SWC (71.1 mg/3 day) groups than that in the CD-CaCO<SUB>3</SUB> (98.7 mg/3 days) group (p > 0.05). AAC had a 2.3-fold higher absorption rate of Ca than that of SWC. No differences in fibula length were observed in the NC and CD groups. The fibula weights of the CD-AAC (0.33 g) and CD-SWC (0.33 g) groups increased compared to those in the CD-C (0.27 g) group; however, no significant difference was observed between the CD groups. We conclude that bioavailability of AAC is higher than that of seaweed-derived Ca or inorganic Ca. Thus, these findings suggest the AAC has potential as a functional food material related to Ca metabolism. (Korean J Nutr 2011; 44(6): 474 ~ 480)

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UCI(KEPA) : I410-ECN-0101-2013-594-001198903