Dairy Wastewaters to Promote Mixotrophic Metabolism in Limnospira (Spirulina) platensis : Effect on Biomass Composition, Phycocyanin Content, and Fatty Acid Methyl Ester Profile.

Bibliographic Details
Title:	Dairy Wastewaters to Promote Mixotrophic Metabolism in Limnospira (Spirulina) platensis : Effect on Biomass Composition, Phycocyanin Content, and Fatty Acid Methyl Ester Profile.
Authors:	Baraldi, Luca, Usai, Luca, Torre, Serenella, Fais, Giacomo, Casula, Mattia, Dessi, Debora, Nieri, Paola, Concas, Alessandro, Lutzu, Giovanni Antonio
Source:	Life (2075-1729); Feb2025, Vol. 15 Issue 2, p184, 24p
Subject Terms:	FATTY acid methyl esters, BIOMASS production, WASTEWATER treatment, PHYCOCYANIN, OLEIC acid
Abstract:	This study explores the mixotrophic cultivation of Limnospira platensis using dairy byproducts, specifically scotta whey (SW), buttermilk wastewater (BMW), and dairy wastewater (DWW), to promote biomass production and enhance the composition of bioactive compounds. By assessing various concentrations (1%, 2%, and 4% v v⁻¹) of these byproducts in a modified growth medium, this study aims to evaluate their effect on L. platensis growth, phycocyanin (C-PC) content, and fatty acid methyl ester (FAME) profiles. The results show that the optimal biomass production was achieved with 2% scotta and dairy wastewater, reaching maximum concentrations of 3.30 g L⁻¹ and 3.19 g L⁻¹, respectively. Mixotrophic cultivation led to increased C-PC yields, especially in buttermilk and dairy wastewater treatments, highlighting the potential for producing valuable pigments. Additionally, the FAME profiles indicated minimal changes compared to the control, with oleic and γ-linolenic acids being dominant in mixotrophic conditions. These findings support the viability of utilizing dairy byproducts for sustainable L. platensis cultivation, contributing to a circular bioeconomy while producing bioactive compounds of nutritional and commercial interest. [ABSTRACT FROM AUTHOR]
	Copyright of Life (2075-1729) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	Complementary Index
Full text is not displayed to guests.	Login for full access.

More Details
ISSN:	20751729
DOI:	10.3390/life15020184
Published in:	Life (2075-1729)
Language:	English