Characterisation and chemometric evaluation of 21 trace elements in three edible seaweed species imported from south-east Asia
Abstract This study was performed to delineate a characterisation of 21 trace elements (Al, As, Be, Cd, Co, Cr, Cu, Fe, Hg, Mo, Mn, Ni, Pb, Sb, Se, Sn, Sr, Tl, U, V, and Zn), in 92 samples of edible seaweeds, belonging to three species ( Laminaria Japonica , 16; Porphyra Yezoensis, 54; Undaria Pinnatifida , 22) produced in south-eastern Asiatic countries. Analytical method based on inductively coupled plasma mass spectrometry was used. The compliance of samples with current European regulations was investigated and the 26% of samples was found not-compliant for Cd level. The suitability of the method due to multi-elemental determination allowed a multivariate approach to study the differentiation between species and to investigate the contribution of each element in differentiation. Influence of the geographical origin onto trace element profile was evaluated, and correlation study between each pair of elements was performed by Pearson coefficients. Taxonomic genus and, although to a lesser extent, the geographic origin have a great influence on trace element profile. Comparison with other similar studies was also performed. Discussion on safety aspects concerning heavy metal exposure related to seaweed consumption has been addressed, by comparing the tolerable levels of the most important toxic elements and the intake brought by seaweed species. For some toxic metals, such as Al and Cd, a remarkable risk related to seaweed consumption has been assessed, though with differences between species. Highlights Levels of 21 trace elements were determined in 92 edible seaweed samples. Chemometric approach was applied for studying differentiation between the 3 species. Taxonomic genus and geographic origin have great importance on trace element profile. Safety aspects about heavy metal exposure by seaweed consumption were studied. Al and Cd show a remarkable risk due to seaweed consumption.
유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.
원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.
NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.
- 이 논문과 함께 출판된 논문 + 더보기