Messastrum gracile (Chlorophyceae) growth using su... - BV FAPESP
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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Messastrum gracile (Chlorophyceae) growth using sugarcane molasses-based macrophyte extract culture media

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Author(s):
Tedesque, Mayara Galatti [1] ; Scardoeli-Truzzi, Bruno [1] ; Sipauba-Tavares, Lucia Helena [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Paulista, Aquaculture Ctr, Lab Limnol & Plankton Prod, BR-14884900 Jaboticabal, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF APPLIED PHYCOLOGY; v. 33, n. 5, p. 2745-2754, OCT 2021.
Web of Science Citations: 0
Abstract

The current study investigated whether untreated and pretreated molasses is suitable for Messastrum gracile growth and the influence of extracts of macrophyte species used as culture media. There was a difference in nutrient composition of the macrophyte culture media with high concentrations of P and N (60 mg L-1) in Salvinia auriculata extract culture medium. When exposed to sugarcane molasses, the availability of these nutrients in the culture medium did not directly affect microalgae growth, since the highest growth rate (k = 0.22) and cell density (204 x 10(5) cells mL(-1)) were observed in Lemna minor culture medium, where N and P concentrations were below 0.3 mg L-1. In macrophyte culture media, total inorganic nitrogen concentrations were higher than total phosphorous. Lipid contents were different under both mixotrophic conditions; they were higher under untreated molasses, except S. auriculata culture medium; however, protein contents under two conditions were lower than 24% biomass dry weight. Low-cost production with annual costs of US\$ 961.62 and annual biomass production of US\$ 5.20 per tonne dry biomass was observed. Current analysis shows that sugarcane molasses (under untreated and pretreated) is not a good alternative to improve and maintain M. gracile, although the opposite occurred with macrophyte culture media that have low cost and high nutrient concentrations enabling the cultivation of this microalga in laboratory. (AU)

FAPESP's process: 14/24697-3 - Use of biotechnological macrophytes in aquaculture
Grantee:Lúcia Helena Sipaúba Tavares
Support Opportunities: Regular Research Grants
FAPESP's process: 17/11001-9 - Use of in natura sugar cane molecule and hydrolyzed cultivation of microalga Ankistrodesmus gracilis (Reinsch) Korshikov in alternative means
Grantee:Mayara Galatti Tedesque
Support Opportunities: Scholarships in Brazil - Master