Mechanism of lactose assimilation in microalgae for the bioremediation of dairy processing side-streams and co-production of valuable food products
Journal of Applied Phycology, 2023
This study investigated the mechanism of lactose assimilation in Nannochloropsis oceanica for dairy-wastewater bioremediation and co-production of valuable feed/food ingredients in a circular dairy system (β-galactosidase and omega-3 polyunsaturated fatty acids). Mixotrophic cultivation was found to be mandatory for lactose assimilation in N. oceanica, with biomass production in mixotrophic cultures reaching a fourfold increase over that under heterotrophic conditions. Under mixotrophic conditions, the microalgae were able to produce β-galactosidase enzyme to hydrolyse lactose ...(opens in a new window)Read More
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Nitrogen and phosphate removal from dairy processing side-streams by monocultures or consortium of microalgae
Journal of Biotechnology, 2023
Acid-casein production generates waste streams that are rich in nitrogen (in the form of protein and nitrate) and phosphate. This makes this type of waste very difficult to treat using conventional techniques resulting in a high amount of operating cost and costly investment. In this research, the application of single culture or consortium of microalgae for uptake of nitrogen and phosphate in the wastewater of an acid-casein factory was investigated... (opens in a new window)Read more
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Chromatographic Techniques to Separate and Identify Bioactive Compounds in Microalgae
Frontiers in Energy Research, 2022
Microalgae are potential sources for the sustainable production of valuable chemicals including polyphenols, pigments, and ω-3 PUFAs. However, successful exploitation of these high value compounds in the food, healthcare and pharmaceutical sectors depends greatly on their effective separation, identification, and analysis after recovery from the biomass. The findings of this review paper illustrated that chromatographic methods coupled to different types of detectors have been used as a crucial part of research on microalgal polyphenols, Omega-3 Polyunsaturated Fatty Acids (ω-3 PUFAs), and pigments production... (opens in a new window)Read more
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The effect of cell disruption on the extraction of oil and protein from concentrated microalgae slurries
Bioresource Technology, 2022
Novel cell-disruption combinations (autolytic incubation and hypotonic osmotic shock combined with HPH or pH12) were used to investigate the fundamental mass transfer of lipids and proteins from Nannochloropsis slurries... (opens in a new window)Read More
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Cultivation of Algae and Its Biorefinery Approach
Handbook of Research on Algae as a Sustainable Solution for Food, Energy, and the Environment, 2022
During the past decades, algae have attracted worldwide attention as a sustainable bioresource to produce various biochemicals and biofuels. However, the prohibitive cost of algal biomass production and processing casts doubt on the industrial applications of algae. Hence, many efforts have been made to enhance the viability of these species. One serious challenge is maximizing algal biomass production. Since algal growth is strain-specific... (opens in a new window)Read more
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Unit operations applied to cell disruption of microalgae
3rd Generation Biofuels, 2022
Microalgae have been widely exploited as a sustainable feedstock of valuable bioactives for the biofuel, pharmaceuticals, and food industries. Most of these high-value components, however, are trapped inside thick and resistant cell walls. Technologies for cell wall disruption therefore need to be investigated, serving as a key step to facilitate the recoveries of target products for industrial manufacture. This chapter will review the operating principles of standard technologies used for microalgae cell disruption... (opens in a new window)Read more
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Hypotonic osmotic shock treatment to enhance lipid and protein recoveries from concentrated saltwater Nannochloropsis slurries
Fuel, 2021
This study reports the use of hypotonic osmotic shock as a treatment step to enhance the recoveries of biofuel-convertible lipids and proteins from lipid-rich saltwater Nannochloropsis gaditana (N. gaditana) slurries... (opens in a new window)Read more