Oil production by the marine microalgae Nannochloropsis sp. F&amp;M-M24 and Tetraselmis suecica F&amp;M-M33

Bondioli, P.; Bella, Laura Della; Rivolta, Gabriele; Zittelli, Graziella Chini; Bassi, Niccolò; Rodolfi, Liliana; Casini, David; Prussi, Matteo; Chiaramonti, David; Tredici, Mario R.

doi:10.1016/j.biortech.2012.02.123

Cited by 217 publications

(135 citation statements)

References 24 publications

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“…At the end of the trial (day 14), when nitrate nitrogen was completely exhausted in all the cultures, all the biomasses showed a composition typical of nutrient‐starved conditions (high carbohydrate and low protein content) (see Bondioli et al ., 2012 for starved biomass composition). The composition was similar in LAB and OUT (proteins 17%–18% of dry biomass, carbohydrates 37%–43%, lipids 16%–18%, ashes 17%–18%), while AX was richer in proteins and lipids (proteins 24%, carbohydrates 32%, lipids 22%, ashes 16%).…”

Section: Resultsmentioning

confidence: 99%

“…Further growth was possible with a decreased N content in the biomass (nutrient‐deficient growth phase). During this phase, cells were unable to divide because of the impossibility to synthesize new proteins and nucleic acids and cells accumulate the energy produced by photosynthesis as the storage products – starch in the case of T. suecica F&M‐M33 (Bondioli et al ., 2012). …”

Section: Discussionmentioning

confidence: 99%

“…This microalga is one of the few actually in the market, as it is widely used in aquaculture (Abiusi et al ., 2014; Tredici et al ., 2009; Tulli et al ., 2012; Muller‐Feuga, 2013). Tetraselmis also represents a possible feedstock for biofuel production (Rodolfi et al ., 2009; Bondioli et al ., 2012; Biondi et al ., 2016), cosmetic applications (Pertile et al ., 2010) and also food as the species Tetraselmis chuii has recently been approved as novel food in the EU (AECOSAN, 2014). …”

Section: Introductionmentioning

confidence: 99%

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Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Biondi

Cheloni

Rodolfi

et al. 2017

Microbial Biotechnology

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SummaryAlgal cultures are usually co‐cultures of algae and bacteria, especially when considering outdoor mass cultivation. The influence of associated bacteria on algal culture performance has been poorly investigated, although bacteria may strongly affect biomass (or derived product) yield and quality. In this work, the influence on growth and productivity of Tetraselmis suecica F&M‐M33 of bacterial communities and single bacterial isolates from the algal phycosphere was investigated. Xenic laboratory and outdoor cultures were compared with an axenic culture in batch. The presence of the bacterial community significantly promoted culture growth. Single bacterial isolates previously found to be strictly associated with T. suecica F&M‐M33 also increased growth compared with the axenic culture, whereas loosely associated and common seawater bacteria induced variable growth responses, from positive to detrimental. The increased growth was mainly evidenced as increased algal biomass production and cell size, and occurred after exhaustion of nutrients. This finding is of interest for biofuel production from microalgae, often attained through nutrient starvation processes leading to oil or carbohydrate accumulation. As axenic T. suecica F&M‐M33 showed a similar growth with or without vitamins, the most probable mechanism behind bacterial positive influence on algal growth seems nutrient recycling.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Biondi

Cheloni

Rodolfi

et al. 2017

Microbial Biotechnology

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“…Martin et al (2014) showed a 52% increase in the total lipid of nitrogen-depleted Nannochloropsis sp. Furthermore, Bondioli et al (2012) observed a 75% increase in the lipid content for the nitrogen depleted Nannochloropsis sp. F&M-M24.…”

Section: Nannochloropsis Epa and Nutrient Limitationmentioning

confidence: 87%

“…glycolipids) and phospholipid fractions. In fact, Bondioli et al (2012) observed that under nitrogen-starved conditions, 21.65% and 19.26% of the EPA are found in the polar and phospholipid fractions, respectively, for Nannochloropsis sp. F&M-M24, and only 3.3% is found in the neutral fractions (Bondioli et al, 2012).…”

Section: Properties Of Nannochloropsis Microalgaementioning

confidence: 98%

A biorefinery for Nannochloropsis: Induction, harvesting, and extraction of EPA-rich oil and high-value protein

Chua

Schenk

2017

Bioresource Technology

131

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Please cite this article as: Chua, E.T., Schenk, P.M., A biorefinery for Nannochloropsis: induction, harvesting, and extraction of EPA-rich oil and high-value protein, Bioresource Technology (2017), doi: http://dx.doi.org/10. 1016/ j.biortech.2017.05.124 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractMicroalgae have been studied as biofactories for almost four decades. Yet, even until today, many aspects of microalgae farming and processing are still considered exploratory because of the uniqueness of each microalgal species. Thus, it is important to develop the entire process of microalgae farming: from culturing to harvesting, and down to extracting the desired high-value products. Based on its rapid growth and high oil productivities, Nannochloropsis sp. is of particular interest to many industries for the production of highvalue oil containing omega-3 fatty acids, specifically eicosapentaenoic acid (EPA), but also several other products. This review compares the various techniques for induction, harvesting, and extraction of EPA-rich oil and high-value protein explored by academia and industry to develop a multi-product Nannochloropsis biorefinery. Knowledge gaps and opportunities are discussed for culturing and inducing fatty acid biosynthesis, biomass harvesting, and extracting EPA-rich oil and high-value protein from the biomass of Nannochloropsis sp.

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Algae Biofuels

Chiaramonti

Tredici

Prussi

et al. 2015

Handbook of Clean Energy Systems

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Biofuels represent today a global commodity, with 110 billion liters produced in 2012, covering approximately 3% of world's transport fuel demand (on an energy equivalent base): IEA estimates that the world biofuels production will reach 2.36 mb/day (135 billion liters/year) in 2018, equal to 4% road transport fuel demand, an increase of 0.48 mb/day compared to 2012. In parallel to increased production, thanks to advanced biofuel technology development and commercialization, further optimization and process integration of conventional technologies will promote the use of unconventional feedstock. Among these, algae are expected to play a major role in the medium‐to‐long‐term scenario, especially in the biorefinery configuration. Algae, in fact, offer a very attractive opportunity for sustainable biofuels and biochemicals/food/feed production, given their high productivity per unit land and their unique biochemical characteristics. On the other hand, the development of commercially viable algae production routes still represents a major challenge, either from a strictly technical or from an economic viewpoint. This article briefly examines the basic issues in algae cultivation and conversion to biofuel: first, the peculiar characteristics of this unconventional biomass feedstock are described, and then cultivation techniques are shown, focusing on microalgae. Market opportunities for algae products are also addressed and fundamental economic considerations are developed.

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Oil production by the marine microalgae Nannochloropsis sp. F&M-M24 and Tetraselmis suecica F&M-M33

Cited by 217 publications

References 24 publications

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

A biorefinery for Nannochloropsis: Induction, harvesting, and extraction of EPA-rich oil and high-value protein

Algae Biofuels

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