CN107723243A - 藻类培养方法 - Google Patents
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Abstract
本发明涉及水产养殖技术领域,尤其涉及藻类培养方法。本发明方法主要包括配置培养浓缩物、初级培养、次级培养和三级培养等步骤,首先制备了培养浓缩物,方便使用,使藻类能够在任何地方培养,并且该营养浓缩物的配方合理,能够满足水产养殖所需的藻类植物的营养需求,该培养浓缩物配置而成的营养液在回收后还能继续使用,节约资源,结合其他初级培养、次级培养和三级培养步骤,本方法能够最大限度减少藻类培养期间的污染,使藻类大量快速的繁殖,培养5天后藻类浓度达到1.5×1010cells/ml,培养周期比传统方法快两倍以上。
Description
技术领域
本发明涉及水产养殖技术领域,尤其涉及藻类培养方法。
背景技术
藻类是水产养殖中中要的组成部分,藻类不仅是养殖鱼虾贝类幼苗的重要饵料生物,同时还可起到水质调节的作用,在水产养殖中扮演着十分重要的角色,在维持养殖系统多样性、物质循环和能量传递方面发挥着重要的作用。
目前藻类培养依然存在不足之处,例如在培养液方面,采用过滤海水制成,成本较高,过程较为繁琐,适用性不广,往往需要针对不同的藻类进行配方调整;而在培养方法方面,由于培养流程不合理,导致培养周期长,藻类易受污染,资源浪费等情况。
发明内容
针对以上现有技术的不足之处,本发明提供藻类培养方法。
本发明采取的技术方案如下:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为55~80g/L的初级培养营养液,置于培养瓶中,将藻类接种入培养瓶中,接种密度为180~230×103cell/mL,通入8%~12%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度1~2h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持5~6h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH7~10;
S3:次级培养:取培养浓缩物,加水配置成浓度为130~150g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶6~7的体积比接种到10L培养罐中,通入10%~13%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第6天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶6~7的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为170~190g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶25~70的体积比接种到1000L养殖池中培养;
S5:藻类收集。
优选的,所述培养浓缩物的制备方法为:取氯化钠110~120g、硫酸镁35~40g、钼酸铵0.3~0.8g、磷酸一氢钠1.2~1.7g、柠檬酸铁0.6~0.9g、氯化锰0.4~0.8g、L-苏糖酸钙加水制成1L的溶液,浓缩,即得培养浓缩物。
优选的,所述培养浓缩物的制备方法为:取氯化钠120g、硫酸镁36g、六氯化二铝1g、钼酸氨0.4g、磷酸一氢钠1.5g、柠檬酸铁0.7g、氯化锰0.5g、L-苏糖酸钙3g、硒酸酯多糖2g、止痢草细粉6g,加水制成1L的溶液,浓缩,即得培养浓缩物。
优选的,所述步骤S5为:加入无机絮凝剂后进行离心浓缩,收集。
优选的,所述藻类包括微拟球藻、角毛藻、杜氏盐藻、卡德藻、扁藻、三角褐指藻、新月菱形藻。
与现有技术相比,本发明的有益效果是:
本发明提供藻类培养方法,首先制备了培养浓缩物,方便使用,使藻类能够在任何地方培养,并且该营养浓缩物的配方合理,能够满足水产养殖所需的藻类植物的营养需求,该培养浓缩物配置而成的营养液在回收后还能继续使用,节约资源,结合其他初级培养、次级培养和三级培养步骤,本方法能够最大限度减少藻类培养期间的污染,使藻类大量快速的繁殖,培养5天后藻类浓度达到1.5×1010cells/ml,满足水产养殖的需求。
附图说明
图1:本发明实施例1中藻类从第一天至第五天的生长效果图。
具体实施方式
下面结合具体实施例来进一步描述本发明,本发明的优点和特点将会随着描述而更为清楚,但本发明的保护范围不限于以下实施例。
实施例1:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物:取氯化钠120g、硫酸镁36g、六氯化二铝1g、钼酸氨0.4g、磷酸一氢钠1.5g、柠檬酸铁0.7g、氯化锰0.5g、L-苏糖酸钙3g、硒酸酯多糖2g、止痢草细粉6g,加水制成1L的溶液,浓缩,即得培养浓缩物。
S2:初级培养:取培养浓缩物,加水配置成浓度为80g/L的初级培养营养液,置于培养瓶中,将藻类(如微拟球藻)接种入培养瓶中,接种密度为230×103cell/mL,通入12%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度2h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持6h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH10;
S3:次级培养:取培养浓缩物,加水配置成浓度为150g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶6的体积比接种到10L培养罐中,通入10%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第6天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶7的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为170g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶70的体积比接种到1000L养殖池中培养;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
实施例2:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物:取氯化钠120g、硫酸镁40g、钼酸铵0.8g、磷酸一氢钠1.2g、柠檬酸铁0.6g、氯化锰0.4g、L-苏糖酸钙1g、硒酸酯多糖3g、止痢草细粉5g,加水制成1L的溶液,浓缩,即得培养浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为55g/L的初级培养营养液,置于培养瓶中,将藻类(如杜氏盐藻)接种入培养瓶中,接种密度为230×103cell/mL,通入8%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度2h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持6h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH 7;
S3:次级培养:取培养浓缩物,加水配置成浓度为130g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶7的体积比接种到10L培养罐中通入13%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第4天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶7的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为170g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶70的体积比接种到1000L养殖池中培养;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
实施例3:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物:取氯化钠110g、硫酸镁40g、钼酸铵0.8g、磷酸一氢钠1.7g、柠檬酸铁0.9g、氯化锰0.4g、L-苏糖酸钙3.5g、硒酸酯多糖3g、止痢草细粉8g,加水制成1L的溶液,浓缩,即得培养浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为80g/L的初级培养营养液,置于培养瓶中,将藻类(如角毛藻)接种入培养瓶中,接种密度为180×103cell/mL,通入12%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度2h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持5h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH 7;
S3:次级培养:取培养浓缩物,加水配置成浓度为130g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶7的体积比接种到10L培养罐中,通入13%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第6天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶7的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为170g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶25的体积比接种到1000L养殖池中培养;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
实施例4:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物:取氯化钠120g、硫酸镁35g、钼酸铵0.4g、磷酸一氢钠1.3g、柠檬酸铁0.7g、氯化锰0.5g、L-苏糖酸钙2g、硒酸酯多糖2g、止痢草细粉5g加水制成1L的溶液,浓缩,即得培养浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为60g/L的初级培养营养液,置于培养瓶中,将藻类(如卡德藻和扁藻)接种入培养瓶中,接种密度为200×103cell/mL,通入10%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度1h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持5h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH 8;
S3:次级培养:取培养浓缩物,加水配置成浓度为140g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶6的体积比接种到10L培养罐中,通入13%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第5天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶6的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为190g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶50的体积比接种到1000L养殖池中培养;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
对比例1:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物:取氯化钠80g、硫酸镁20g、钼酸铵0.2g、磷酸一氢钠0.8g、柠檬酸铁0.4g、氯化锰0.2g、L-苏糖酸钙0.9g、硒酸酯多糖1g、止痢草细粉4g,加水制成1L的溶液,浓缩,即得培养浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为50g/L的初级培养营养液,置于培养瓶中,将藻类(如微拟球藻)接种入培养瓶中,接种密度为150×103cell/mL,通入5%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度0.5h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持3h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH5;
S3:次级培养:取培养浓缩物,加水配置成浓度为100g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶5的体积比接种到10L培养罐中,通入7%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第6天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶5的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为150g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶25的体积比接种到1000L养殖池中培养;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
对比例2:
藻类培养方法,包括以下步骤:
S1:配置藻类浓缩物:取氯化钠150g、硫酸镁50g、钼酸铵1.2g、磷酸一氢钠2.0g、柠檬酸铁1.5g、氯化锰1.5g、L-苏糖酸钙4g、硒酸酯多糖4g、止痢草细粉10g,加水制成1L的溶液,浓缩,即得培养浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为90g/L的初级培养营养液,置于培养瓶中,将藻类(如微拟球藻)接种入培养瓶中,接种密度为250×103cell/mL,通入15%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度4h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持8h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH 11;
S3:次级培养:取培养浓缩物,加水配置成浓度为160g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶8的体积比接种到10L培养罐中,通入15%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第6天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶10的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为210g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶25的体积比接种到1000L养殖池中培养;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
对比例3:
藻类培养方法,包括以下步骤:
S1:配置人工海水:采用Mocledon人工海水配方,即取氯化钠26.726g、氯化镁2.26g、硫酸镁3.248g、氯化钙1.153g、碳酸氢钙0.198g、氯化钾0.721g、溴化钠0.058g、硼酸0.058g、硅酸钠(Na2SiO3)0.0024g、硅酸钠(Na2Si4O9)0.0015g、磷酸0.002g、六氯化二铝0.013g、氨0.002g、硝酸锂0.0013g,加水至1L,即得;
S2~S5:与实施例1相同,区别在于,将初级培养液、次级培养液、三级培养液替换为步骤S1中所述的人工海水。
对比例4:
藻类培养方法,包括以下步骤:
S1:与实施例1相同;
S2:初级培养:取培养浓缩物,加水配置成浓度为50g/L的培养营养液,置于培养瓶中,将藻类(如微拟球藻)接种入培养瓶中,室温条件培养;
S3:次级培养:取培养浓缩物,加水配置成浓度为50g/L的培养营养液,将一级培养的藻液与次级培养营养液按1∶5的体积比接种到20L培养罐中;
S4:三级培养:取培养浓缩物,加水配置成浓度为50g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶25的体积比接种到1000L养殖池中;
S5:藻类收集:加入无机絮凝剂后进行离心浓缩,收集。
实验例:
监测实施例1~实施例4、对比例1~对比例4的藻类的扩繁情况,结果如下表所示。
结果表明,采用本发明的培养浓缩物及培养方法,藻类实现指数增长,在培养至第五天后,藻液的浓度达到了1.0~1.5×1010cells/ml,而对比例中藻液的浓度仅为1.3×107cells/ml以内,本发明方案培养的藻液繁殖速度明显高于对比例。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明保护的范围之内。
Claims (5)
1.藻类培养方法,其特征在于,包括以下步骤:
S1:配置藻类浓缩物;
S2:初级培养:取培养浓缩物,加水配置成浓度为55~80g/L的初级培养营养液,置于培养瓶中,将藻类接种入培养瓶中,接种密度为180~230×103cell/mL,通入8%~12%的CO2,3500±500Lux条件下摇瓶培养,缓慢加温,使得水温在1h内从室温升至45℃,保持此温度1~2h,然后缓慢降温至室温;在室温情况下加入冰块使藻类培养瓶中的水缓慢降温至0℃,维持5~6h,更换初级培养营养液,使养殖池中的水恢复至室温,用盐酸或氢氧化钠调节pH7~10;
S3:次级培养:取培养浓缩物,加水配置成浓度为130~150g/L的次级培养营养液,将一级培养的藻液与次级培养营养液按1∶6~7的体积比接种到10L培养罐中,通入10%~13%的CO2和臭氧施的混合气体,室温,4000±500Lux条件下培养,培养到第4~6天,浓缩藻液,将浓缩后的藻液与次级培养营养液按1∶6~7的体积比转接到20L培养罐中培养;
S4:三级培养:取培养浓缩物,加水配置成浓度为170~190g/L的三级培养营养液,将次级培养的藻液与三级培养营养液按1∶25~70的体积比接种到1000L养殖池中培养;
S5:藻类收集。
2.根据权利要求1所述的藻类培养方法,其特征在于,所述培养浓缩物的制备方法为:取氯化钠110~120g、硫酸镁35~40g、钼酸铵0.3~0.8g、磷酸一氢钠1.2~1.7g、柠檬酸铁0.6~0.9g、氯化锰0.4~0.8g、L-苏糖酸钙1.0~3.5g、硒酸酯多糖2~3g、止痢草细粉5~8g,加水制成1L的溶液,浓缩,即得培养浓缩物。
3.根据权利要求2所述的藻类培养方法,其特征在于,所述培养浓缩物的制备方法为:取氯化钠120g、硫酸镁36g、六氯化二铝1g、钼酸氨0.4g、磷酸一氢钠1.5g、柠檬酸铁0.7g、氯化锰0.5g、L-苏糖酸钙3g、硒酸酯多糖2g、止痢草细粉6g,加水制成1L的溶液,浓缩,即得培养浓缩物。
4.根据权利要求1所述的藻类培养方法,其特征在于,所述步骤S5为:加入无机絮凝剂后进行离心浓缩,收集。
5.根据权利要求1所述的藻类培养方法,其特征在于,所述藻类包括微拟球藻、角毛藻、杜氏盐藻、卡德藻、扁藻、三角褐指藻、新月菱形藻。
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