Valorization of dairy side-streams for the cultivation of microalgae for value added food products
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Valorization of dairy side-streams for the cultivation of microalgae for value added food products. / Ozcelik, Duygu; Suwal, Shyam; Ray, Colin; Tiwari, Brijesh K.; Jensen, Poul Erik; Poojary, Mahesha M.
In: Trends in Food Science and Technology, Vol. 146, 104386, 2024.Research output: Contribution to journal › Review › Research › peer-review
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TY - JOUR
T1 - Valorization of dairy side-streams for the cultivation of microalgae for value added food products
AU - Ozcelik, Duygu
AU - Suwal, Shyam
AU - Ray, Colin
AU - Tiwari, Brijesh K.
AU - Jensen, Poul Erik
AU - Poojary, Mahesha M.
N1 - Publisher Copyright: © 2024 The Authors
PY - 2024
Y1 - 2024
N2 - Background: Microalgae are one of the promising unicellular species for biosynthesis of functional natural products, such as omega-3 long-chain polyunsaturated fatty acids, carotenoids, proteins, and vitamins. As they readily grow on organic and nitrogenous substrates, they have vast phycoremediation potential for different industrial wastewater and side-streams. The side-streams from dairy industry have the enormous potential of valorization as they have high carbon and nutrient load, which could serve as growth media for microalgal cultivation. Scope and approach: This review addresses the most recent examples of valorization of several types of dairy side-streams using microalgae. The aim is to provide better understanding of the issues and challenges of valorizing the industrial dairy side-streams as substrates for value added microalgal biomass production with focus on nutrient, particularly lactose utilization by using different microalgae species, mostly from Chlorella, Scenedesmus, and Spirulina genera. Key finding and conclusions: So far, mixotrophic and heterotrophic microalgae cultivation has been tested in various genuine and model dairy side-streams, wherein mixotrophic cultivation exhibited better biomass productivity. Moreover, this review identifies microalgae cultures capable of nutrient utilization and lactose assimilation, providing valuable guidance for future research in phycoremediation of dairy side-streams for value-added food production. Further investigations on different microalgal species for lactose utilization and β-galactosidase activity in model media are required to enable efficient valorization of lactose in the side-streams.
AB - Background: Microalgae are one of the promising unicellular species for biosynthesis of functional natural products, such as omega-3 long-chain polyunsaturated fatty acids, carotenoids, proteins, and vitamins. As they readily grow on organic and nitrogenous substrates, they have vast phycoremediation potential for different industrial wastewater and side-streams. The side-streams from dairy industry have the enormous potential of valorization as they have high carbon and nutrient load, which could serve as growth media for microalgal cultivation. Scope and approach: This review addresses the most recent examples of valorization of several types of dairy side-streams using microalgae. The aim is to provide better understanding of the issues and challenges of valorizing the industrial dairy side-streams as substrates for value added microalgal biomass production with focus on nutrient, particularly lactose utilization by using different microalgae species, mostly from Chlorella, Scenedesmus, and Spirulina genera. Key finding and conclusions: So far, mixotrophic and heterotrophic microalgae cultivation has been tested in various genuine and model dairy side-streams, wherein mixotrophic cultivation exhibited better biomass productivity. Moreover, this review identifies microalgae cultures capable of nutrient utilization and lactose assimilation, providing valuable guidance for future research in phycoremediation of dairy side-streams for value-added food production. Further investigations on different microalgal species for lactose utilization and β-galactosidase activity in model media are required to enable efficient valorization of lactose in the side-streams.
KW - Agro-industrial waste
KW - Dairy wastewater
KW - Food waste valorization
KW - Functional biomass
KW - Lactose assimilation
KW - β-galactosidase
U2 - 10.1016/j.tifs.2024.104386
DO - 10.1016/j.tifs.2024.104386
M3 - Review
AN - SCOPUS:85186498198
VL - 146
JO - Trends in Food Science & Technology
JF - Trends in Food Science & Technology
SN - 0924-2244
M1 - 104386
ER -
ID: 386161446