红球藻是一种淡水单胞绿藻，隶属绿藻门、团藻目、红球藻科、红球藻属。该藻能大量累积虾青素而呈现红色，故名红球藻，又称雨生红球藻。红球藻是目前科学界发现的继螺旋藻、小球藻之后，富含营养价值和药用价值的藻类食品。
红球藻实际上是一种绿藻，它可以用来做饲料。
Red globose alga is actually a kind of green alga, which can be used as feedstuff.
雨生红球藻通过D1蛋白周转和叶黄素循环保护自身免受强光伤害。
H. pluvialis could protect itself against strong irradiance through the D1 protein repair cycle and the xanthophyll cycle.
单独添加维生素B_1、B_（12）和H能够促进雨生红球藻虾青素含量增加。
Astaxanthin content of H. pluvialis was accelerated significantly by adding of Vitamin-B_1, Vitamin-B_(12) and Vitamin-H.
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