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Castañeda-Tamez P, Chiquete-Félix N, Uribe-Carvajal S, Cabrera-Orefice A. The mitochondrial respiratory chain from Rhodotorula mucilaginosa, an extremophile yeast. BIOCHIMICA ET BIOPHYSICA ACTA. BIOENERGETICS 2024; 1865:149035. [PMID: 38360260 DOI: 10.1016/j.bbabio.2024.149035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 01/20/2024] [Accepted: 02/09/2024] [Indexed: 02/17/2024]
Abstract
Rhodotorula mucilaginosa survives extreme conditions through several mechanisms, among them its carotenoid production and its branched mitochondrial respiratory chain (RC). Here, the branched RC composition was analyzed by biochemical and complexome profiling approaches. Expression of the different RC components varied depending on the growth phase and the carbon source present in the medium. R. mucilaginosa RC is constituted by all four orthodox respiratory complexes (CI to CIV) plus several alternative oxidoreductases, in particular two type-II NADH dehydrogenases (NDH2) and one alternative oxidase (AOX). Unlike others, in this yeast the activities of the orthodox and alternative respiratory complexes decreased in the stationary phase. We propose that the branched RC adaptability is an important factor for survival in extreme environmental conditions; thus, contributing to the exceptional resilience of R. mucilaginosa.
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Affiliation(s)
- Paulina Castañeda-Tamez
- Departamento de Genética Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Natalia Chiquete-Félix
- Departamento de Genética Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Salvador Uribe-Carvajal
- Departamento de Genética Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
| | - Alfredo Cabrera-Orefice
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine (RCMM), Radboud University Medical Center, Nijmegen, the Netherlands.
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2
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Torres-Alvarez D, León-Buitimea A, Albalate-Ramírez A, Rivas-García P, Hernández-Núñez E, Morones-Ramírez JR. Conversion of banana peel into diverse valuable metabolites using an autochthonous Rhodotorula mucilaginosa strain. Microb Cell Fact 2022; 21:96. [PMID: 35643468 PMCID: PMC9148461 DOI: 10.1186/s12934-022-01834-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/18/2022] [Indexed: 11/10/2022] Open
Abstract
Low-cost substrates are an exciting alternative for bioprocesses; however, their complexity can affect microorganism metabolism with non-desirable outcomes. This work evaluated banana peel extract (BPE) as a growth medium compared to commercial Yeast-Malt (YM) broth in the native and non-conventional yeast Rhodotorula mucilaginosa UANL-001L. The production of carotenoids, fatty acids, and exopolysaccharides (EPS) was also analyzed. Biomass concentration (3.9 g/L) and growth rate (0.069 g/h) of Rhodotorula mucilaginosa UANL-001L were obtained at 200 g/L of BPE. Yields per gram of dry biomass for carotenoids (317 µg/g) and fatty acids (0.55 g/g) showed the best results in 150 g/L of BPE, while 298 µg/g and 0.46 mg/g, respectively, were obtained in the YM broth. The highest yield of EPS was observed in 50 g/L of BPE, a two-fold increase (160.1 mg/g) compared to the YM broth (76.3 mg/g). The fatty acid characterization showed that 100 g/L of BPE produced 400% more unsaturated compounds (e.g., oleic and ricinoleic acid) than the YM broth. Altogether, these results indicate that BPE is a suitable medium for producing high-value products with potential industrial applications.
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Touchette D, Altshuler I, Gostinčar C, Zalar P, Raymond-Bouchard I, Zajc J, McKay CP, Gunde-Cimerman N, Whyte LG. Novel Antarctic yeast adapts to cold by switching energy metabolism and increasing small RNA synthesis. THE ISME JOURNAL 2022; 16:221-232. [PMID: 34294882 PMCID: PMC8692454 DOI: 10.1038/s41396-021-01030-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 05/17/2021] [Accepted: 06/02/2021] [Indexed: 02/07/2023]
Abstract
The novel extremophilic yeast Rhodotorula frigidialcoholis, formerly R. JG1b, was isolated from ice-cemented permafrost in University Valley (Antarctic), one of coldest and driest environments on Earth. Phenotypic and phylogenetic analyses classified R. frigidialcoholis as a novel species. To characterize its cold-adaptive strategies, we performed mRNA and sRNA transcriptomic analyses, phenotypic profiling, and assessed ethanol production at 0 and 23 °C. Downregulation of the ETC and citrate cycle genes, overexpression of fermentation and pentose phosphate pathways genes, growth without reduction of tetrazolium dye, and our discovery of ethanol production at 0 °C indicate that R. frigidialcoholis induces a metabolic switch from respiration to ethanol fermentation as adaptation in Antarctic permafrost. This is the first report of microbial ethanol fermentation utilized as the major energy pathway in response to cold and the coldest temperature reported for natural ethanol production. R. frigidialcoholis increased its diversity and abundance of sRNAs when grown at 0 versus 23 °C. This was consistent with increase in transcription of Dicer, a key protein for sRNA processing. Our results strongly imply that post-transcriptional regulation of gene expression and mRNA silencing may be a novel evolutionary fungal adaptation in the cryosphere.
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Affiliation(s)
- D Touchette
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - I Altshuler
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - C Gostinčar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
- Lars Bolund Institute of Regenerative Medicine, BGI-Qingdao, Qingdao, China
| | - P Zalar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - I Raymond-Bouchard
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - J Zajc
- Agricultural Institute of Slovenia, Ljubljana, Slovenia
| | - C P McKay
- NASA Ames Research Center, Moffett Field, CA, USA
| | - N Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - L G Whyte
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada.
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Abeln F, Chuck CJ. The history, state of the art and future prospects for oleaginous yeast research. Microb Cell Fact 2021; 20:221. [PMID: 34876155 PMCID: PMC8650507 DOI: 10.1186/s12934-021-01712-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/23/2021] [Indexed: 12/25/2022] Open
Abstract
Lipid-based biofuels, such as biodiesel and hydroprocessed esters, are a central part of the global initiative to reduce the environmental impact of the transport sector. The vast majority of production is currently from first-generation feedstocks, such as rapeseed oil, and waste cooking oils. However, the increased exploitation of soybean oil and palm oil has led to vast deforestation, smog emissions and heavily impacted on biodiversity in tropical regions. One promising alternative, potentially capable of meeting future demand sustainably, are oleaginous yeasts. Despite being known about for 143 years, there has been an increasing effort in the last decade to develop a viable industrial system, with currently around 100 research papers published annually. In the academic literature, approximately 160 native yeasts have been reported to produce over 20% of their dry weight in a glyceride-rich oil. The most intensively studied oleaginous yeast have been Cutaneotrichosporon oleaginosus (20% of publications), Rhodotorula toruloides (19%) and Yarrowia lipolytica (19%). Oleaginous yeasts have been primarily grown on single saccharides (60%), hydrolysates (26%) or glycerol (19%), and mainly on the mL scale (66%). Process development and genetic modification (7%) have been applied to alter yeast performance and the lipids, towards the production of biofuels (77%), food/supplements (24%), oleochemicals (19%) or animal feed (3%). Despite over a century of research and the recent application of advanced genetic engineering techniques, the industrial production of an economically viable commodity oil substitute remains elusive. This is mainly due to the estimated high production cost, however, over the course of the twenty-first century where climate change will drastically change global food supply networks and direct governmental action will likely be levied at more destructive crops, yeast lipids offer a flexible platform for localised, sustainable lipid production. Based on data from the large majority of oleaginous yeast academic publications, this review is a guide through the history of oleaginous yeast research, an assessment of the best growth and lipid production achieved to date, the various strategies employed towards industrial production and importantly, a critical discussion about what needs to be built on this huge body of work to make producing a yeast-derived, more sustainable, glyceride oil a commercial reality.
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Affiliation(s)
- Felix Abeln
- Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK.
- Centre for Sustainable and Circular Technologies, University of Bath, Bath, BA2 7AY, UK.
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Sun L, Shao S, Bao J. Microbial lipid fermentation of Trichosporon cutaneum in high saline water. BIORESOUR BIOPROCESS 2021; 8:71. [PMID: 38650229 PMCID: PMC10992498 DOI: 10.1186/s40643-021-00424-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/31/2021] [Indexed: 11/10/2022] Open
Abstract
Fermentative production of microbial lipid requires high fresh water input. The utilization of high saline seawater or industrial wastewater is an important alternative to reduce the freshwater consumption. This study revealed that oleaginous yeast Trichosporon cutaneum was tolerant to a high salinity up to 130 g/L of NaCl after long-term adaptive evolution. Lipid fermentation of T. cutaneum in seawater achieved the lipid production of 31.7 g/L with approximately 36% greater than that in freshwater. The saline water containing phenol was also tested for lipid fermentation and 23.6 g/L of lipid was produced simultaneously with the complete biodegradation of phenol. An interesting phenomenon was also observed that the yeast cells spontaneously segregated onto the upper surface of the saline water. This study extended the lipid fermentation options with practical application potentials.
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Affiliation(s)
- Luhuan Sun
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Shuai Shao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Jie Bao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China.
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Kommoji S, Gopinath M, Satya Sagar P, Yuvaraj D, Iyyappan J, Jaya Varsha A, Sunil V. Lipid bioproduction from delignified native grass (Cyperus distans) hydrolysate by Yarrowia lipolytica. BIORESOURCE TECHNOLOGY 2021; 324:124659. [PMID: 33429256 DOI: 10.1016/j.biortech.2020.124659] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
In the present study, native grass (Cyperus distans) was utilized for the production of lipid using Yarrowia lipolytica MTCC 9519. Initially, pretreatment methods using hydrothermal and alkaline delignification were performed to obtain cellulose rich liquid fractions. Delignified native grass biomass was enzymatically hydrolyzed to convert non fermentable sugars in to fermentable sugars. The growth of Y. lipolytica MTCC 9519 by utilizing pretreated native grass hydrolysate was evaluated. The yield and concentration of total reducing sugars after enzyme hydrolysis were found to be 378 ± 35 mg/g of pretreated biomass and 28.64 g/L ± 1.25 g/L, respectively. When pretreated, delignified native grass hydrolysate was used with (NH4)2SO4 (30C/N ratio) and sodium n-octanoate (0.4% w/w), the dry cell weight and lipid accumulation of Y. lipolytica MTCC 9519 reached about 19.88 ± 1.54 g/L and 53.62% (w/w) respectively after 96 h. Thus, native grass could become a promising substrate for biolipid production.
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Affiliation(s)
- Satish Kommoji
- Department of Chemical Engineering, University of Petroleum and Energy Studies, Dehradun, Uttarakhand 248007, India
| | - M Gopinath
- Department of Biotechnology, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, India
| | - Polinati Satya Sagar
- Department of Chemical Engineering, GMR Institute of Technology, Rajam, Andhra Pradesh 532127, India
| | - D Yuvaraj
- Department of Biotechnology, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, India
| | - J Iyyappan
- Department of Biotechnology, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, India.
| | - A Jaya Varsha
- Department of Biotechnology, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, India
| | - Varsha Sunil
- Department of Biotechnology, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, India
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Bessadok B, Santulli A, Breuck T, Sadok S. Species disparity response to mutagenesis of marine yeasts for the potential production of biodiesel. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:129. [PMID: 31139259 PMCID: PMC6530083 DOI: 10.1186/s13068-019-1459-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Among the third-generation biodiesel feed stock, oleaginous marine yeasts are the least studied microorganisms for such purpose. RESULTS Wild strains yeasts were isolated from various Tunisian marine sources including fish waste (Candida tenuis CtTun15, Debaryomyces hansenii DhTun2015, Trichosporon asahii TaTun15 and Yarrowia lipolytica YlTun15) and seawater (Rhodotorula mucilaginosa RmTun15). Following incubation with ethyl methanesulfonate (EMS: 75 mM) for various periods of time (T15, T30, T45, T60 min), the cell viability of these strains responded differentially according to yeast species. For instance, mutated CtTun15 did not survive after 30 min of EMS treatment; higher resistances were observed in DhTun2015 (45 min), in YlTun15, RmTun15 and in TaTun15 (60 min) but with significant decreased cell viabilities (survival rate: 6.02, 3.16, 11.22, 11.58, 7.70%, respectively). For all surviving mutated strains, the optima of biomass and lipid yields were detected after 96 h in YPD culture; but derived from strains submitted to different period of EMS incubation. In most mutated strains, the maximum biomass (BP) and lipid (LP) productivities coincided and were observed after 30 min of EMS incubation. Only CtTun15 showed different optima of BP and LP (after 30 min and 15 min, respectively). The fatty acids (FA) compositions considered essential in the prediction of biodiesel criteria; were highly affected by EMS mutagenesis. Essentially, 30- and 45-min EMS incubation induced the highest levels of PUFA and MUFA in YlTun15, RmTun15 and TaTun15 with non-significant differences in the different times. However, CtTun15 and DhTun2015 mutant strains responded differently, with the highest levels of MUFA observed following 15 and 45 min; and that of PUFA after 30 and 45 min, respectively. CONCLUSION The methyl-esterification of FA from the three mutated yeast strains (30 min-YlTun15, RmTun15 and TaTun15) yielded biodiesel with physical proprieties consistent with the International Standard System. However, investigations are needed for up-scaling biodiesel production.
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Affiliation(s)
- Boutheina Bessadok
- Blue Biotechnology and Aquatics Bioproducts Laboratory (B3Aqua), Institut National des Sciences et Technologies de la Mer – INSTM-Annexe La Goulette, 60 Port de Pêche, 2060 La Goulette, Tunisia
- Institut National Agronomique de Tunisie (INAT), 43 Avenue Charles Nicolle, 1082 Tunis, Tunisia
| | - Andrea Santulli
- Consorzio Universitario della Provincia di Trapani (CUPT), Lungomare Dante Alighieri, 91016 Casa Santa, TP Italy
| | - Thomas Breuck
- Fachgebiet Industrielle Biokatalyse, IBK Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Saloua Sadok
- Blue Biotechnology and Aquatics Bioproducts Laboratory (B3Aqua), Institut National des Sciences et Technologies de la Mer – INSTM-Annexe La Goulette, 60 Port de Pêche, 2060 La Goulette, Tunisia
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Ma Y, Gao Z, Wang Q, Liu Y. Biodiesels from microbial oils: Opportunity and challenges. BIORESOURCE TECHNOLOGY 2018; 263:631-641. [PMID: 29759818 DOI: 10.1016/j.biortech.2018.05.028] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 05/06/2018] [Accepted: 05/07/2018] [Indexed: 05/26/2023]
Abstract
Although biodiesel has been extensively explored as an important renewable energy source, the raw materials-associated cost poses a serious challenge on its large-scale commercial production. The first and second generations of biodiesel are mainly produced from usable raw materials, e.g. edible oils, crops etc. Such a situation inevitably imposes higher demands on land and water usage, which in turn compromise future food and water supply. Obviously, there is an urgent need to explore alternative feedstock, e.g. microbial oils which can be produced by many types of microorganisms including microalgae, fungi and bacteria with the advantages of small footprint, high lipid content and efficient uptake of carbon dioxide. Therefore, this review offers a comprehensive picture of microbial oil-based technology for biodiesel production. The perspectives and directions forward are also outlined for future biodiesel production and commercialization.
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Affiliation(s)
- Yingqun Ma
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Zhen Gao
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Qunhui Wang
- Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Yu Liu
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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A new HPLC method for simultaneously measuring chloride, sugars, organic acids and alcohols in food samples. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2016.12.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Serra I, Guidi B, Burgaud G, Contente ML, Ferraboschi P, Pinto A, Compagno C, Molinari F, Romano D. Seawater-Based Biocatalytic Strategy: Stereoselective Reductions of Ketones with Marine Yeasts. ChemCatChem 2016. [DOI: 10.1002/cctc.201600947] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Immacolata Serra
- Department of Food, Environmental and Nutritional Science (DeFENS); University of Milan; via Mangiagalli 25 20133 Milan Italy
| | - Benedetta Guidi
- Department of Medical Biotechnology and Translational Medicine; University of Milan; Via Saldini 50 20133 Milan Italy
| | - Gaetan Burgaud
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne; Université de Brest; 29280 Plouzane France
| | - Martina L. Contente
- Department of Food, Environmental and Nutritional Science (DeFENS); University of Milan; via Mangiagalli 25 20133 Milan Italy
| | - Patrizia Ferraboschi
- Department of Medical Biotechnology and Translational Medicine; University of Milan; Via Saldini 50 20133 Milan Italy
| | - Andrea Pinto
- Department of Pharmaceutical Sciences (DISFARM); University of Milan; Via Mangiagalli 25 20133 Milan Italy
| | - Concetta Compagno
- Department of Food, Environmental and Nutritional Science (DeFENS); University of Milan; via Mangiagalli 25 20133 Milan Italy
| | - Francesco Molinari
- Department of Food, Environmental and Nutritional Science (DeFENS); University of Milan; via Mangiagalli 25 20133 Milan Italy
| | - Diego Romano
- Department of Food, Environmental and Nutritional Science (DeFENS); University of Milan; via Mangiagalli 25 20133 Milan Italy
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Chopra J, Dineshkumar R, Bhaumik M, Dhanarajan G, Kumar R, Sen R. Integrated in situ transesterification for improved biodiesel production from oleaginous yeast: a value proposition for possible industrial implication. RSC Adv 2016. [DOI: 10.1039/c6ra14003c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An integrated in situ transesterification process was developed in this study for energy and cost-efficient biodiesel production from oleaginous yeast biomass.
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Affiliation(s)
- Jayita Chopra
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
- P.K. Sinha Center for Bioenergy
- IIT Kharagpur
| | | | - Moumita Bhaumik
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | | | - RaviRanjan Kumar
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Ramkrishna Sen
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
- P.K. Sinha Center for Bioenergy
- IIT Kharagpur
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