海涂盐碱水培育钝顶螺旋藻的研究

Studies on cultivation of Spirulina platensis usin g saline alkaline water in coastal saline

以简易的Ｚａｒｒｏｕｋ培养液（ＣＫ－Ｍ）为标准，根据上虞海涂盐碱水的化学组成，用计算的方法确定将海涂盐碱水配制成螺旋藻培养液（Ｔ－Ｍ）应添加Ｃ、Ｎ、Ｐ等营养元素的用量，并驯化和筛选出能在Ｔ－Ｍ中快速生长的钝顶螺旋藻新品系（Ｓｐ－Ｓ（Ｔ））。结果表明，用计算的方法来设计不同水质的培养液配方是切实可行的；在海涂室外用Ｔ－Ｍ培养Ｓｐ－Ｓ（Ｔ），产量高达１３．８ｇ／（ｍ２·ｄ），而培养液的成本比用淡水配制的低１６％；藻粉蛋白质含量高达６５．６％，氨基酸组成均衡，水分、灰分、重金属等理化指标优于或符合食用级螺旋藻粉的标准。

To culture Spirulina in a new media (T M) with saline alkaline in coastal saline in Shangyu, the contents of nutrient elements, such as C, N and P, were calculated according to the simple Zarrouk s media (CK M). Moreover, a new Spirulina platensis strain, which could grow rapidly in T M, was tamed an d bred. The results indicated that: ①To culture Spirulina with different wa ter, the prescription of media could be designed by calculation; ②The output of Sp S(T) could be up to 13 8 g/(m 2\5d) in coastal saline. However, the cos t of media was 16% lower than that prepared with fresh water; ③In the powder o f Sp S (T), the contents of protein was up to 65 6%, and the composition of amino acid was balanced, while the contents of water, ash and heavy metal were b etter or in accordance with the standard of the powder of Spirulina as food .