The elemental composition and bioaccessibility of the Azorean macroalgae Petalonia binghamiae, Osmundea pinnatifida and Halopteris scoparia were studied. H. scoparia had the highest Cr, Mn, Co and Ni contents. Iodine content was also the highest in H. scoparia, 1098 ± 54 mg kg dw⁻¹. Content reductions due to rehydration were in the 75%–90% range. Steaming led to similar reductions with exception of Cr, Mn, Co, Ni and Zn in O. pinnatifida. For P. binghamiae and O. pinnatifida, bioaccessibility percentages varied between elements. Variation due to rehydration and culinary treatment was narrower, particularly for P. binghamiae. Whereas I bioaccessibility was low in O. pinnatifida, 11%–14%, it reached 57%–69% in P. binghamiae. On the basis of bioaccessibility, to meet the I DRI, 2.7 g dried P. binghamiae, 16.9–23.8 g rehydrated P. binghamiae and 12.7 g steamed P. binghamiae everyday are required. For O. pinnatifida, 5.0 g, 19.0–33.3 g and 12.9 g of dried, rehydrated and steamed red seaweed, respectively, are needed.

中文翻译：

---

三种未经充分研究的亚速尔群岛大型藻类的元素组成和生物利用度

研究了Azorean macroalgae Petalonia binghamiae，Osmundea pinnatifida和Halopteris scoparia的元素组成和生物可及性。H. scoparia具有最高的Cr，Mn，Co和Ni含量。碘含量也最高H.猪毛，1098±54毫克千克干重^-1。由于补液而导致的含量减少在75％–90％范围内。蒸煮导致了类似的减少，但在O. pinnatifida中Cr，Mn，Co，Ni和Zn除外。对于宾果假单胞菌和pinnatifida假单胞菌，生物可及性百分比在元素之间变化。补液和烹饪处理引起的差异变窄，尤其是对于P. binghamiae。而我在生物有效性较低O.裙带菜，11％-14％，它达到了57％-69％P. binghamiae。基于生物可及性，要满足I DRI，每天需要2.7 g干燥的宾氏假单胞菌，16.9–23.8 g复水的宾氏假单胞菌和12.7 g的蒸过的宾氏假单胞菌。对于pinnatifida，分别需要5.0 g，19.0-33.3 g和12.9 g干燥，再水合和蒸煮的红海藻。