Microbial conversion of biodiesel byproduct glycerol to triacylglycerols by oleaginous yeast Rhodosporidium toruloides and the individual effect of some impurities on lipid production

Xu, Jingyang; Zhao, Xuebing; Wang, Wencong; Du, Wei; Liu, Dehua

doi:10.1016/j.bej.2012.04.003

Cited by 184 publications

(115 citation statements)

References 23 publications

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“…The majority of studies conducted on oleaginous yeast have focused on Yarrowia lipolytica (Papanikolaou and Aggelis, 2002), Rhodosporidium toruloides (Li et al, 2007;Xu et al, 2012), Rhodotorula graminis (Galafassi et al, 2012), and Rhodotorula glutinis (Chi et al, 2011). Of these, Y. lipolytica is the most extensively studied, and displays a remarkable ability to grow on various http://dx.doi.org/10.1016/j.biortech.2015.02.051 0960-8524/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 98%

“…The lipids recovered from oleaginous cells can be trans-esterified into fatty acid methyl esters (FAMEs) and possess a composition similar to those obtained from plant-based oils (Chatzifragkou et al, 2011;Papanikolaou and Aggelis, 2002;Papanikolaou et al, 2008a;Xu et al, 2012). There are many different types of oleaginous organisms, including bacteria, fungi, algae, and yeasts.…”

Section: Introductionmentioning

confidence: 98%

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Lipid production in the under-characterized oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, from biodiesel-derived waste glycerol

Munch

Sestric

Sparling

et al. 2015

Bioresource Technology

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Lipid production in the under-characterized oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, from biodiesel-derived waste glycerol

Munch

Sestric

Sparling

et al. 2015

Bioresource Technology

View full text Add to dashboard Cite

“…Besides, the oil fatty acid composition comprised a high content of monounsaturated fatty acids, which makes it suitable for biodiesel production (Uckun Kiran et al 2013). Many authors have proposed the use of glycerol as carbon source to grow different oleaginous yeasts, i.e., Cryptococcus curvatus (Liang et al 2010), Rhodotorula glutinis (Saenge et al 2011), Rhodotorula graminis (Galafassi et al 2012), and R. toruloides (Xu et al 2012). In all cases, it was considered a suitable carbon source for lipogenesis.…”

Section: Yeastmentioning

confidence: 99%

New Frontiers in the Production of Biodiesel: Biodiesel Derived from Macro and Microorganisms

Leiva-Candia

Dorado

2014

Lecture Notes in Energy

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The biodiesel industry is gaining interest in the past years due to the depletion of the easily extracted petroleum, the increasing demand to the automotive market, and the environmental damage. It is acknowledged that the main obstacle to biodiesel marketing is the cost of production, which is mostly due to the price of the raw material (usually vegetable oils). In this way, the goal is to provide low-cost raw materials. This may be achieved by feedstocks that do not require arable land, do not depend on growing seasons, and that give added value to waste, helping also to its recycling. In this way, oleaginous organisms may be considered an alternative feedstock for the biodiesel industry, as they meet all the previous requirements. This chapter presents the state of the art and the main characteristics of the oil and biodiesel provided by macroorganism (insects) and microorganism (bacteria, filamentous fungi, and yeasts).

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“…Approximately 1 kg of glycerol is generated per 10 kg of biodiesel produced. Various methods have been used for the disposal or utilization of crude glycerol (CG), including direct combustion [2,3], fertilizer [4,5], animal feed [6,7], or anaerobic digestion feedstock [5,8], and thermo-chemical or biological conversion to value added products [9][10][11][12][13][14]. However, with the rapid expansion of the biodiesel industry, the market is now flooded with excessive CG and any increase in biodiesel production rates will significantly raise the quantity of glycerol above the current market demands and decrease its economic value.…”

Section: Introductionmentioning

confidence: 99%

Preparation of sludge-derived KOH-activated carbon for crude glycerol purification

Hunsom

Autthanit

2015

J Mater Cycles Waste Manag

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Activated carbon (AC) was prepared from wastewater treatment sludge by KOH activation and then used for the adsorptive purification of crude glycerol (CG). The effect of different KOH: char (w/w) ratios (1-6), KOH soaking times (5-25 h), and activation temperatures (500-900°C) on the surface properties of the obtained sludge-derived ACs and their adsorption capacity for impurities in H 3 PO 4 pretreated CG was explored. The preparation conditions affected the textural properties and surface chemistry of the sludge-derived AC and its efficiency in the adsorptive purification of CG. Oxygen-containing surface functional groups, particularly carbonyl groups, as well as the textural properties, played a more important role in the adsorptive purification of CG. Among the sludge-derived ACs, the one impregnated at a KOH: char (w/w) ratio of 5.0 for 25 h and then activated at 800°C exhibited the most suitable surface properties for the purification of pretreated CG, attaining a 93.0 % (w/w) glycerol level at an AC dose of 67 g/L for 2 h with agitation at 250 rpm. The AC adsorption of impurities from the pretreated CG followed the Langmuir isotherm. However, the reusability of the used AC by hexane or diethyl ether extraction was not suitable.

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Microbial conversion of biodiesel byproduct glycerol to triacylglycerols by oleaginous yeast Rhodosporidium toruloides and the individual effect of some impurities on lipid production

Cited by 184 publications

References 23 publications

Lipid production in the under-characterized oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, from biodiesel-derived waste glycerol

Lipid production in the under-characterized oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, from biodiesel-derived waste glycerol

New Frontiers in the Production of Biodiesel: Biodiesel Derived from Macro and Microorganisms

Preparation of sludge-derived KOH-activated carbon for crude glycerol purification

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