Co-culturing of oleaginous microalgae and yeast: paradigm shift towards enhanced lipid productivity

Arora, Neha; Patel, Alok; Mehtani, Juhi; Pruthi, Parul A.; Pruthi, Vikas; Poluri, Krishna Mohan

doi:10.1007/s11356-019-05138-6

Cited by 69 publications

(58 citation statements)

References 144 publications

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“…Microalgae exist in nature as a part of a community, benefiting from the interaction among microorganisms [36]. In a co-culture method, more than one species is grown in the same medium, so it should be taken into account that the species selected have similar growth requirements [37]. Nowadays, co-culture of microalgae with yeast or bacteria has shown potential to enhance the phycoremediation and biomass yield [26].…”

Section: Co-culture Methodsmentioning

confidence: 99%

Microalgae Water Bioremediation: Trends and Hot Topics

et al. 2020

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The need to reduce costs associated with the production of microalgae biomass has encouraged the coupling of process with wastewater treatment. Emerging pollutants in municipal, industrial, and agricultural wastewaters, ranging from pharmaceuticals to metals, endanger public health and natural resources. The use of microalgae has, in fact, been shown to be an efficient method in water-treatment processes and presents several advantages, such as carbon sequestration, and an opportunity to develop innovative bioproducts with applications to several industries. Using a bibliometric analysis software, SciMAT, a mapping of the research field was performed, analyzing the articles produced between 1981 and 2018, aiming to identifying the hot topics and trends studied until now. The application of microalgae on water bioremediation is an evolving research field that currently focuses on developing efficient and cost-effective treatments methods that also enable the production of add-value products, leading to a blue and circular economy.

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Section: Co-culture Methodsmentioning

confidence: 99%

Microalgae Water Bioremediation: Trends and Hot Topics

et al. 2020

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“…Specifically, microalgae are individual plant cells that can be cultivated either in photo-bioreactors, or in specially constructed open ponds or even in a hybrid combination of both systems (usually raceway open ponds and closed photo-bioreactors). They utilize CO 2 , micronutrients, and solar light to multiply and produce raw microalgal biomass containing carbohydrates, lipids, and proteins (Arora et al, 2019;Papapolymerou et al, 2019;Zhang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Optimizing Microalgal Biomass Feedstock Selection for Nanocatalytic Conversion Into Biofuel Clean Energy, Using Fuzzy Multi-Criteria Decision Making Processes

2021

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Biofuel production from microalgae non-food feedstock is a challenge for strengthening Green energy nowadays. Reviewing the current technology, there is still reluctance in investing towards the production of new algal strains that yield more oil and maximize capital gains. In the current work, the microalgal feedstock selection problem is investigated for increased lipid production and nano-catalytic conversion into clean biofuel. For that purpose, a variety of Fuzzy Multi-Criteria Decision Making processes and a multitude of Optimization criteria spanning to technological, environmental, economic, and social aspects are used. The strains selected for the analysis are Chlorella sp., Schizochytrium sp., Spirulina sp., and Nannochloropsis sp. The methods applied are fuzzy analytic hierarchy process, FTOPSIS (fuzzy technique for the order of preference to the ideal solution), and FCM (fuzzy cognitive mapping). Pairwise comparison matrices were calculated using data from extensive literature review. All aforementioned fuzzy logic methodologies are proven superior to their numeric equivalent under uncertain factors that affect the decision making, such as cost, policy implications, and also geographical and seasonal variation. A major finding is that the most dominant factor in the strain selection is the high lipid content. Moreover, the results indicate that the Chlorella Vulgaris microalgae is ranked as the best choice by the FTOPSIS method followed by the Nannochloropsis strain, and Spirulina Platensis was found to be the last in performance. The best and worst case scenario run with FCM experimentally verify this choice indicating that Chlorella Vulgaris follows this trend of selection mostly with the technological and the economic criteria for both the sigmoid and the hyperbolic tangent deep-learning functions used.

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“…Therefore, the identification of substrates able to reduce the costs can be considered a solution that positively affects the related industrial implementation as well as the identification of strategies able to contribute positively in the same direction. Among them, co-culturing oleaginous yeasts and microalgae has been studied in the recent years for enhancing Single Cell Oil productivity by utilizing minimal resources in various fields such as wastewater treatment, biogas production, enzyme production and bioremediation [4]. While the benefits that can be derived from these systems are clear, the nature of mutualistic interactions between yeast and microalgae in co-culture systems are still largely unexplored [5].…”

Section: Introductionmentioning

confidence: 99%

“…Conversely, yeast growth results in acidic medium, which can hinder microalgal growth. The combination of both can be of help to balance this phenomenon [4]. Additionally, the reduction of toxic reactive oxygen species (ROS) by the heterotroph partner has been shown capable to protect the phototroph microorganisms from oxidative stress in these co-cultures systems [7].…”

Section: Introductionmentioning

confidence: 99%

Biorefinery-Based Approach to Exploit Mixed Cultures of Lipomyces Starkeyi and Chloroidium saccharophilum for Single Cell Oil Production

Zuccaro¹,

Mondo²,

Pinto³

et al. 2020

Preprint

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The mutualistic interactions between the oleaginous yeast Lipomyces starkeyi and the green mi-croalga Chloroidium saccharophilum in mixed cultures were investigated to exploit possible syner-gistic effects. As a matter of facts, microalga could act as an oxygen generator for the yeast, while the yeast could provide carbon dioxide to microalga. A lignocellulosic hydrolysate from steam exploded Arundo donax (Giant reed) was used as low cost feedstock. The overall lipid content and lipid productivity obtained in the mixed culture treating the hydrolysate of Arundo donax were equal to 0.081 glipid.gbiomass-1 and 37.2 mglipid.L-1.d-1, respectively. They represented promising re-sults if compared to the model systems where synthetic media were used. This study provided new input for the integration of Single Cell Oil (SCO) production with agro-industrial feedstock and the fatty acid distribution mainly consisting of stearic (C18:0) and oleic acid (C18:1) allows promising applications in biofuels, cosmetics, food additives and other products of industrial interest.

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Co-culturing of oleaginous microalgae and yeast: paradigm shift towards enhanced lipid productivity

Cited by 69 publications

References 144 publications

Microalgae Water Bioremediation: Trends and Hot Topics

Microalgae Water Bioremediation: Trends and Hot Topics

Optimizing Microalgal Biomass Feedstock Selection for Nanocatalytic Conversion Into Biofuel Clean Energy, Using Fuzzy Multi-Criteria Decision Making Processes

Biorefinery-Based Approach to Exploit Mixed Cultures of Lipomyces Starkeyi and Chloroidium saccharophilum for Single Cell Oil Production

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