دورية أكاديمية

Efficient Expression and Application of a Modified Rhizomucor miehei Lipase for Simultaneous Production of Biodiesel and Eicosapentaenoic Acid Ethyl Ester from Nannochloropsis Oil.

التفاصيل البيبلوغرافية
العنوان: Efficient Expression and Application of a Modified Rhizomucor miehei Lipase for Simultaneous Production of Biodiesel and Eicosapentaenoic Acid Ethyl Ester from Nannochloropsis Oil.
المؤلفون: Lu T; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Qian Y; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Zhu Y; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Ju X; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Dai W; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Xu Q; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Yang Q; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Li S; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Yuan B; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China., Huang J; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China.
المصدر: Journal of agricultural and food chemistry [J Agric Food Chem] 2024 Jul 31; Vol. 72 (30), pp. 16835-16847. Date of Electronic Publication: 2024 Jul 19.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Chemical Society Country of Publication: United States NLM ID: 0374755 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5118 (Electronic) Linking ISSN: 00218561 NLM ISO Abbreviation: J Agric Food Chem Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Washington, American Chemical Society.
مواضيع طبية MeSH: Rhizomucor*/enzymology , Rhizomucor*/genetics , Eicosapentaenoic Acid*/metabolism , Eicosapentaenoic Acid*/chemistry , Eicosapentaenoic Acid*/analogs & derivatives , Lipase*/metabolism , Lipase*/genetics , Lipase*/chemistry , Biofuels*/analysis , Stramenopiles*/genetics , Stramenopiles*/enzymology , Stramenopiles*/metabolism , Stramenopiles*/chemistry , Fungal Proteins*/genetics , Fungal Proteins*/metabolism , Fungal Proteins*/chemistry, Gene Expression ; Enzyme Stability ; Kinetics ; Temperature ; Hydrogen-Ion Concentration ; Saccharomycetales/genetics ; Saccharomycetales/metabolism ; Saccharomycetales/enzymology
مستخلص: Few reports exist on one-step enzymatic methods for the simultaneous production of biodiesel and eicosapentaenoic acid ethyl ester (EPA-EE), a high-value pharmaceutical compound. This study aimed to efficiently express Rhizomucor miehei lipase (pRML) in Pichia pastoris X-33 via propeptide mutation and high-copy strain screening. The mutated enzyme was then used to simultaneously catalyze the production of both biodiesel and EPA-EE. The P46N mutation in the propeptide (P46N-pRML) significantly boosted its production, with the four-copy strain increasing enzyme yield by 3.7-fold, reaching 3425 U/mL. Meanwhile, its optimal temperature increased to 45-50 °C, pH expanded to 7.0-8.0, specific activity doubled, K m reduced to one-third, and k cat / K m increased 7-fold. Notably, P46N-pRML efficiently converts Nannochloropsis gaditana oil's eicosapentaenoic acid (EPA). Under optimal conditions, it achieves up to 93% biodiesel and 92% EPA-EE yields in 9 h. Our study introduces a novel, efficient one-step green method to produce both biodiesel and EPA-EE using this advanced enzyme.
فهرسة مساهمة: Keywords: EPA-EE; Nannochloropsis gaditana oil; P. pastoris; Rhizomucor miehei lipase mutant; biodiesel
المشرفين على المادة: AAN7QOV9EA (Eicosapentaenoic Acid)
EC 3.1.1.3 (Lipase)
0 (Biofuels)
0 (Fungal Proteins)
6GC8A4PAYH (eicosapentaenoic acid ethyl ester)
SCR Organism: Rhizomucor miehei; Komagataella pastoris
تواريخ الأحداث: Date Created: 20240719 Date Completed: 20240731 Latest Revision: 20240731
رمز التحديث: 20240731
DOI: 10.1021/acs.jafc.4c02360
PMID: 39028993
قاعدة البيانات: MEDLINE