适应培养条件对黑穗菌微生物甘油三酯脂肪酸谱的影响

Q1 Environmental Science

Bioresource Technology Reports Pub Date : 2025-04-20 DOI:10.1016/j.biteb.2025.102119

Paul Richter , Marie Maßjosthusmann , Thomas Seidel , Leonard Walter , Katharina Miebach , Marcel Mann , Jochen Büchs , Kerstin Schipper , Michael Feldbrügge , Janis Goeke , Dominik Marcel Wieland , Heiko Hayen , Jørgen Barsett Magnus

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引用次数: 0

摘要

植物油广泛存在于各种消费品中。然而，人们对其生产对环境的影响表示担忧。本研究通过研究培养参数如何影响麦氏黑穗菌微生物甘油三酯的脂肪酸组成，探索一种可持续的替代方法。在不同的碳源、氧可用性、pH值、有机酸添加和营养限制下进行批量培养，以评估其影响。不同碳源的影响不大，而营养限制显著改变了脂肪酸组成。低氧供应减少不饱和和增加链长。此外，中性pH有利于长链，而碱性pH增加不饱和。柠檬酸的加入使棕榈酸含量显著提高了36%。这些发现证明了微生物甘油三酯生产的多功能性，并为定制特定应用的脂肪酸谱提供了见解，为普通植物油提供了一种非常适合的可持续替代品。

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Tailoring the fatty acid profile of microbial triglycerides in Ustilago maydis by adapting the cultivation conditions

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Tailoring the fatty acid profile of microbial triglycerides in Ustilago maydis by adapting the cultivation conditions

Plant oils are found in a wide range of consumer products. However, concerns have been raised regarding the environmental impact of their production. This study explores a sustainable alternative by investigating how cultivation parameters influence the fatty acid composition of microbial triglycerides in Ustilago maydis. Batch cultivations were performed with varying carbon sources, oxygen availability, pH, organic acid addition, and nutrient limitations to assess their impact. Different carbon sources had a modest influence, while nutrient limitations significantly altered the fatty acid composition. Lower oxygen supplies reduced unsaturation and increased chain length. Moreover, a neutral pH favored longer chains, while a basic pH increased unsaturation. The addition of citric acid significantly boosted palmitic acid content by 36 %. These findings demonstrate the versatility of microbial triglyceride production and provide insights into tailoring fatty acid profiles for specific applications, to provide a well-suited sustainable alternative to common plant oils.

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