Pronounced effects of the basal frond portion of the kelp Saccharina japonica on gonad qualities of the sea urchin Mesocentrotus nudus from a barren
Pronounced effects of the basal frond portion of the kelp Saccharina japonica on gonad qualities of the sea urchin Mesocentrotus nudus from a barren
复制标题
海带 Saccharina japonica 基叶部分对贫瘠海胆 Mesocentrotus nudus 性腺品质的显着影响
DOI：
10.1016/j.aquaculture.2019.734623
复制
发表时间：
2020
期刊：
影响因子：
4.5
通讯作者：
Y. Agatsuma
中科院分区：
文献类型：
--
作者：
S. Takagi;Y. Murata;E. Inomata;M.N. Aoki;Y. Agatsuma
在5 ~ 7月间，用海带叶饲喂裸海胆（Mesocentrotus nudus），可提高裸海胆（Mesocentrotus nudus）的性腺质量。预期味道的改善取决于海带叶状体的氨基酸组成，其在叶状体部分之间变化。研究了取食S.结果表明，日本沼虾的性腺大小、硬度、颜色（L*a*B*）和滋味（游离氨基酸）等指标与日本沼虾的性腺大小、硬度和滋味有关。在5 - 7月的育苗试验中，我们分析了各叶片部分的蛋白质、总氨基酸和游离氨基酸的含量。喂养每一个叶部分改善性腺的大小，硬度，颜色和味道。基础部分，其中含有高水平的谷氨酸，丙氨酸和脯氨酸的喂养，显着增加丙氨酸和谷氨酸的含量，降低性腺中的甜味氨基酸的含量，这意味着大大增强了甜味和鲜味。通过与以往报道的M. nudus，性腺味道将在更高的水平上进行评估。S. japonicafronds具有改善性腺味道的高潜力。
The gonad quality of sea urchin (Mesocentrotus nudus) adults from a barren can be improved by feeding the animals fronds of the kelpSaccharina japonicafrom May–July. The improvement in taste is expected to depend on the amino acid composition of the kelp fronds, which varies among the frond portions. We investigated the effects of feeding apical, middle and basal frond portions ofS. japonicaon gonad size, hardness, color (L*a*b*) and taste (free amino acids) ofM. nudusfrom a barren from May–July in a rearing experiment in which we analyzed the protein and total and free amino acid content of each frond portion. Feeding of each frond portion improved gonad size, hardness, color and taste. Feeding of the basal portion, which contained high levels of glutamic acid, alanine, and proline, markedly increased the alanine and glutamic acid content and decreased the content of bitter-tasting amino acids in gonads, implying greatly enhanced sweet and umami taste. Based on a comparison of alanine content with that reported in past studies ofM. nudus, the gonad taste would be evaluated at a higher level. The basal portion ofS. japonicafronds has the high potential to improve gonad taste.