دورية أكاديمية
أعرض في EDS

Biodiesel Production from the Marine Alga Nannochloropsis oceanica Grown on Yeast Wastewater and the Effect on Its Biochemical Composition and Gene Expression.

التفاصيل البيبلوغرافية
العنوان: Biodiesel Production from the Marine Alga Nannochloropsis oceanica Grown on Yeast Wastewater and the Effect on Its Biochemical Composition and Gene Expression.
المؤلفون: Senousy HH; Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt., El-Sheekh MM; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt., Khairy HM; National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt., El-Sayed HS; National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt., Mahmoud GA; Botany and Microbiology Department, Faculty of Science, Assuit University, Assuit 71516, Egypt., Hamed AA; Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt.
المصدر: Plants (Basel, Switzerland) [Plants (Basel)] 2023 Aug 08; Vol. 12 (16). Date of Electronic Publication: 2023 Aug 08.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI AG Country of Publication: Switzerland NLM ID: 101596181 Publication Model: Electronic Cited Medium: Print ISSN: 2223-7747 (Print) Linking ISSN: 22237747 NLM ISO Abbreviation: Plants (Basel) Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI AG, [2012]-
مستخلص: Microalgae-based biodiesel synthesis is currently not commercially viable due to the high costs of culture realizations and low lipid yields. The main objective of the current study was to determine the possibility of growing Nannochloropsis oceanica on Saccharomyces cerevisiae yeast wastewater for biodiesel generation at an economical rate. N. oceanica was grown in Guillard F/2 synthetic medium and three dilutions of yeast wastewater (1, 1.25, and 1.5%). Biodiesel properties, in addition to carbohydrate, protein, lipid, dry weight, biomass, lipid productivity, amino acids, and fatty acid methyl ester (FAMEs) content, were analyzed and the quality of the produced biodiesel is assessed. The data revealed the response of N. oceanica to nitrogen-deficiency in the three dilutions of yeast wastewater. N. oceanica in Y2 (1.25%) yeast wastewater dilution exhibited the highest total carbohydrate and lipid percentages (21.19% and 41.97%, respectively), and the highest lipid productivity (52.46 mg L -1 day -1 ) under nitrogen deficiency in yeast wastewater. The fatty acids profile shows that N. oceanica cultivated in Y2 (1.25%) wastewater dilution provides a significant level of TSFA (47.42%) and can be used as a feedstock for biodiesel synthesis. In addition, N. oceanica responded to nitrogen shortage in wastewater dilutions by upregulating the gene encoding delta-9 fatty acid desaturase (Δ9FAD). As a result, the oleic and palmitoleic acid levels increased in the fatty acid profile of Y2 yeast wastewater dilution, highlighting the increased activity of Δ9FAD enzyme in transforming stearic acid and palmitic acid into oleic acid and palmitoleic acid. This study proved that the Y2 (1.25%) yeast wastewater dilution can be utilized as a growth medium for improving the quantity of specific fatty acids and lipid productivity in N. oceanica that affect biodiesel quality to satisfy global biodiesel requirements.
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فهرسة مساهمة: Keywords: N deficiency; N/P ratio; Nannochloropsis oceanica; biodiesel production; carbohydrate; lipid; yeast wastewater; Δ9FAD gene expression
تواريخ الأحداث: Date Created: 20230826 Latest Revision: 20230829
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC10459201
DOI: 10.3390/plants12162898
PMID: 37631110
قاعدة البيانات: MEDLINE
الوصف
تدمد:2223-7747
DOI:10.3390/plants12162898