在瑞可塔奶酪乳清上培养微藻:在培养过程中调节营养供应,以改善作物生长
Paolo Capano1, Gaia Santini1, Natascia Biondi1
1Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy.
New biotechnology
|January 12, 2026
概括
微藻通过优化种植条件,有效地处理乳制品废水,如奶酪乳清. 这种可持续的方法增强了生物质生产和废水处理,提供了有前途的大规模应用.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 乳制品行业的废水,特别是奶酪乳糖,面临着处置挑战,但也提供了价值化机会.
- 在乳清上种植微藻是一种可持续的方法,可以同时生产生物质和处理废水.
研究的目的:
- 为了优化微藻种植,使用瑞科塔奶酪乳清作为基质.
- 选和选择微藻菌株,以便在乳清上有效生长.
- 识别和克服长期在乳清上培养微藻的挑战.
主要方法:
- 选18种微藻菌株 (Scenedesmus,Chlorella) 在乳清上生长.
- 在光生物反应器中在各种条件下测试选择的菌株:低乳糖负载 (LWL),高乳糖负载 (HWL),盐度和微量营养素 (S&M) 和中等乳糖负载 (MWL).
- 在MWL试验中优化乳清度,补充策略和微量营养素补充.
主要成果:
- 与合成介质相比,大多数菌株在稀释乳清上表现出更好的生长 (56-590%的增长).
- 观察到乳清成分的高清除效率.
- 发现的挑战包括营养缺乏,盐度增加,微量营养素缺乏和抑制作用.
- 在MWL试验中的优化 (12%乳清,每3天补充30%,微量营养素补充) 改善了生物质产量 (2036亿细胞L-1乳清-1) 和扩展了种植.
结论:
- 精心优化微藻种植管理对于最大限度地利用乳制品副产品至关重要.
- 解决乳清中生长限制因素是成功大规模应用的关键.
- 这项研究为在微藻种植中利用乳清提供了有希望的基础,为环境和经济带来了好处.
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