Fatty acids as biomarkers of microalgae

Sahu, Abhishek; Pancha, Imran; Jain, Deepti; Paliwal, Chetan; Ghosh, Tonmoy; Patidar, Shailesh Kumar; Bhattacharya, Sourish; Mishra, Sandhya

doi:10.1016/j.phytochem.2013.02.001

Cited by 132 publications

(60 citation statements)

References 31 publications

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“…of dryweight biomass have been reported [39]. In contrast, achieved CRFW hydrolysate-cultivated R. glutinis biomass yields were 3.5× higher (~3.5 g DW L −1 with a total lipid content of 40%) compared to typical yields of green microalgae cultivated in open system suspension cultures [40].…”

Section: Growth Of R Glutinis In Crfw Hydrolysatesmentioning

confidence: 91%

Bio-Refining of Carbohydrate-Rich Food Waste for Biofuels

2015

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Abstract:The global dependence on finite fossil fuel-derived energy is of serious concern given the predicted population increase. Over the past decades, bio-refining of woody biomass has received much attention, but data on food waste refining are sorely lacking, despite annual and global deposition of 1.3 billion tons in landfills. In addition to negative environmental impacts, this represents a squandering of valuable energy, water and nutrient resources. The potential of carbohydrate-rich food waste (CRFW) for biofuel (by Rhodotorulla glutinis fermentation) and biogas production (by calculating theoretical methane yield) was therefore investigated using a novel integrated bio-refinery approach. In this approach, hydrolyzed CRFW from three different conditions was used for Rhodotorulla glutinis cultivation to produce biolipids, whilst residual solids after hydrolysis were characterized for methane recovery potential via anaerobic digestion. Initially, CRFW was hydrolysed using thermal-(Th), chemical-(Ch) and Th-Ch combined hydrolysis (TCh), with the CRFW-leachate serving as a control (Pcon). Excessive foaming led to the loss of TCh cultures, while day-7 biomass yields were similar (3.4-3.6 g dry weight (DW) L −1 ) for the remaining treatments. Total fatty acid methyl ester (FAME) content of R. glutinis cultivated on CRFW hydrolysates were relatively low (~6.5%) but quality parameters (i.e., cetane number, density, viscosity and higher heating values) of OPEN ACCESSEnergies 2015, 8 6351 biomass extracted biodiesel complied with ASTM standards. Despite low theoretical RS-derived methane potential, further research under optimised and scaled conditions will reveal the potential of this approach for the bio-refining of CRFW for energy recovery and value-added co-product production.

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Section: Growth Of R Glutinis In Crfw Hydrolysatesmentioning

confidence: 91%

Bio-Refining of Carbohydrate-Rich Food Waste for Biofuels

2015

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“…Palmitic acid (16:0) and oleic acid (18:1) are the major fatty acids in all Cyanophyceaen members. Spirulina, representing the most characteristic Cyanobacteria, produces linoleic and γ-linolenic acids [Maslova et al, 2004;Chaiklahan et al, 2008;Sahu et al, 2013]. The Rhodophyta have the highest proportion of total fatty acid content, with about 81% of its strains having EPA and arachidonic acid [Lang et al, 2011].…”

Section: Lipidsmentioning

confidence: 99%

Microalgae, a Potential Natural Functional Food Source – a Review

Villarruel-López¹,

Ascencio²,

Nuño³

2017

Pol. J. Food Nutr. Sci.

107

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“…C16:0 (Palmitic acid) are biomarker for microalgae, mostly from Cyanophyceae and Chlorophyceae. It was also the biomarkers for plants and marine animal sources (Sahu et al, 2013). C18:0 (Stearic acid) was the second most abundant and it is the biomarker for marine animals and fungi and followed by C20:5n3 (Eicosapentanoic acid), as the third most abundance which is biomarker for microalgae and marine bacteria (Yazawa, 1996).…”

Section: Fatty Acid Compositionmentioning

confidence: 99%