The nutritional aspects of biorefined Saccharina latissima, Ascophyllum nodosum and Palmaria palmata
The nutritional aspects of biorefined Saccharina latissima, Ascophyllum nodosum and Palmaria palmata
复制标题
生物精制的宽阔糖精、泡叶藻和棕榈藻的营养成分
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
C. Greenwell
中科院分区：
文献类型：
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作者：
P. Schiener;Sufen Zhao;K. Theodoridou;M. Carey;Karen Mooney;C. Greenwell
本研究分析了生物精制海带糖精（Saccharina latissima）、芦笋（Ascophyllum nodosum）和棕榈（Palmaria palmata）经碳水化合物和多酚萃取后的化学成分，旨在评价生物精制海带作为一种新型动物饲料添加剂的营养价值。经优化后的酶糖化处理表明，棕榈木和结瘤木的蛋白浓度可提高2倍以上。通过增加总氨基酸和脂肪酸，进一步提高了残渣的营养价值。由于去除了钠、钾和氯化物等无机元素，这三种海藻的总固体和灰分含量都减少了约40%。相比之下，二价金属，如铁和锌，以及硅，都在这三种残留物中积累。砷和碘等潜在有害成分仅在棕色生物精制海藻中减少，而在生物精制的棕榈藻中，碘增加39%，而砷减少24%。酶解糖化后，三种海藻的总脂肪酸和总氨基酸含量等营养价值均有所提高。在三种海藻中，乙腈水溶液对多酚的去除率均为约80%，且与酶糖化作用相结合时，对瘤状海藻的蛋白质回收率没有影响。这凸显了生物精炼概念的潜力，即从海藻中生产多种产品，如富含多酚和碳水化合物的提取物，以及含有较高蛋白质和脂肪含量的残留物。
The chemical profile of biorefined Saccharina latissima, Ascophyllum nodosum and Palmaria palmata after carbohydrate and polyphenol extraction was analysed with the aim to evaluate the nutritional aspects of biorefined seaweeds as a novel animal feed supplement. Optimised enzymatic saccharification has been used to show that the protein concentration in the residue of P. palmata and A. nodosum can be increased by more than 2-fold. Nutritional value of the residue was further enhanced through an increase in total amino acids and fatty acids. As a consequence of removal of inorganic elements such as sodium, potassium and chloride, the total solid and ash content of all three seaweeds was reduced by around 40%. In contrast, divalent metals such as iron and zinc, as well as silicon, accumulated in all three residues. Potentially harmful components such as arsenic and iodine were reduced only in brown biorefined seaweeds, whilst in biorefined P. palmata, iodine increased by 39% compared to a 24% decline of arsenic. Nutritional values such as total fatty acid and total amino acid content increased in all three seaweeds after enzymatic saccharification. Polyphenol removal in all three seaweeds was >80% using aqueous acetonitrile and, in combination with enzymatic saccharification, did not impact on protein recovery in A. nodosum. This highlights the potential of biorefinery concepts to generate multiple products from seaweed such as extracts enriched in polyphenols and carbohydrates and residue with higher protein and lipid content.
人类氨基酸需求模式：使用已发表的氨基酸需求建议进行种间比较。
DOI：
10.1093/jn/126.7.1871
发表时间：
1996
期刊：
The Journal of nutrition
影响因子：
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作者：
McLarney,MJ;Pellett,PL;Young,VR
通讯作者：
Young,VR