Surface-to-volume ratio influence on the growth of Scenedesmus obliquus in a thin-layer cascade system

Venâncio, Henrique Cesar; Cella, Herculano; Lopes, Rafael Garcia; Dérner, Roberto Bianchini

doi:10.1007/s10811-020-02036-0

Cited by 19 publications

(17 citation statements)

References 28 publications

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“…Microalgae were cultivated in thin layer cascade system (TLC) using a fed-batch method [ 27 ] with the LCA-AD culture medium (4 N; P/3), adapted from the original BBM medium [ 28 ]. The final concentration of the culture medium was the following: NaNO 3 1000 mg L −1 ; CaCl 2 .2H 2 O 25 mg L −1 ; MgSO 4 .7H 2 O 75 mg L −1 ; K 2 HPO 4 25 mg L −1 ; KH 2 PO 4 58.3 mg L −1 ; NaCl 25 mg L −1 ; Na 2 EDTA.2H 2 O 50 mg L −1 ; KOH 31 mg L −1 ; FeSO 4 .7H 2 O 4.98 mg L −1 ; ZnSO 4 .7H 2 O 0.00882 mg L −1 ; MnCl 2 .4H 2 O 0.00144 mg L −1 ; (NH 4 ) 6 MoO 7 O 24 .H 2 O 0.00661 mg L −1 ; CuSO 4 .5H 2 O 0.00157 mg L −1 ; and Co(NO 3 ) 2 .6H 2 O 0.0004 mg L −1 .…”

Section: Methodsmentioning

confidence: 99%

Effects of Microalgae Addition and Fish Feed Supplementation in the Integrated Rearing of Pacific White Shrimp and Nile Tilapia Using Biofloc Technology

Silva

Pereira

Martins

et al. 2022

Animals

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This study aims to evaluate a Pacific white shrimp and Nile tilapia integrated system using biofloc technology with or without the addition of the microalgae Scenedesmus obliquus and with or without fish feed supplementation in a two-factor 62-day experiment. The shrimp (2.16 ± 0.01 g) were reared under a density of 400 shrimp m−3 and the fish (1.53 ± 0.12 g) were reared under a density of 522 fish m−3. The microalgae was added to the culture water two times a week. Growth performance, sludge production, and water microbiology were evaluated. Fish feed and the microalgae addition improved fish final biomass in 58% and 14%, respectively (p < 0.05). Fish survival was significantly higher when microalgae was added (93.9 ± 1.8%) compared with the treatments without microalgae addition (86.2 ± 7.6%) (p < 0.05). The yield of the overall system was higher in the treatments with fish feed supplementation (4.2 ± 0.2 kg m−3) compared with no addition (3.9 ± 0.2 kg m−3) (p < 0.05). These results suggest that fish feed supplementation at the rate of 1% of the biomass and microalgae inoculation can improve fish growth performance and system yield, without affecting sludge production and water microbiology. This work is an expansion of a conference paper with the same title.

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Section: Methodsmentioning

confidence: 99%

Effects of Microalgae Addition and Fish Feed Supplementation in the Integrated Rearing of Pacific White Shrimp and Nile Tilapia Using Biofloc Technology

Silva

Pereira

Martins

et al. 2022

Animals

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“…The authors pointed out some advantages in solar tracked photobioreactors compared to static photobioreactors, such as increased light supply that enabled a year-round production of T. obliquus biomass, at unfavourable and fickle climatic conditions. Recently, Venancio et al (2020) analysed the influence of S/V ratio in biomass production of T. obliquus in a thin-layer cascade system. They reported the 80 m À1 S/V (1.19 g L À1 day À1 ) is more productive than 60 m À1 S/V (0.95 g L À1 day À1 ) and it can affect the biomass reached, 20.14 g L À1 and 14.60 g L À1 for 80 and 60 m À1 SV, respectively.…”

Section: Mixotrophic Growthmentioning

confidence: 99%

“…In addition, a culture of T. obliquus in a thin‐layer system, where temperature reached 40°C (ranged from 24 to 40°C), did not show any effect on growth performance (Venancio et al . 2020). These findings have proved that T. obliquus as a thermotolerant microalga and promising candidate for the development of intensive cultivations in tropical, semi‐arid and desert areas – which are, in most cases, unsuitable for agriculture.…”

Section: Microalgae Productionmentioning

confidence: 99%

“…An important characteristic of this system is its high illuminated S/V ratio. This increases the photosynthetically active culture volume which is one of the main problems faced during operation of raceway ponds (Venancio et al 2020). However, heat retention due to the thin layer of cultivation exposed to solar irradiance in the daytime allows survival of only thermotolerant strains in this system.…”

Section: Thin-layer Systemmentioning

confidence: 99%

“…Recently, Venancio et al . (2020) analysed the influence of S/V ratio in biomass production of T. obliquus in a thin‐layer cascade system. They reported the 80 m −1 S/V (1.19 g L −1 day −1 ) is more productive than 60 m −1 S/V (0.95 g L −1 day −1 ) and it can affect the biomass reached, 20.14 g L −1 and 14.60 g L −1 for 80 and 60 m −1 SV, respectively.…”

Section: Microalgae Productionmentioning

confidence: 99%

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A multidisciplinary review ofTetradesmus obliquus: a microalga suitable for large‐scale biomass production and emerging environmental applications

Oliveira

Prasad

et al. 2021

Reviews in Aquaculture

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Microalgae biomass is among one of the most promising sustainable raw materials for many industrial sectors especially biodiesel production. Although a great diversity of microalgae species has been described and isolated, few have been used for large-scale cultivation. This review presents a multidisciplinary overview of studies on Tetradesmus obliquusa freshwater microalga suitable for largescale production and emerging environmental applications. It reviews the taxonomic history of T. obliquus and its potential commercial applications, including cultivations techniques and environmental parameters, production systems, harvesting and drying of biomass, and its biochemical composition. In addition, a model refinery for T. obliquus is proposed that combines the main productive bioprocesses. Finally, a bibliometric analysis is presented and opportunities for future research with T. obliquus are identified.

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Bacterial assemblages structure in intensive cultivations of the microalga Tetradesmus obliquus

Bucheli,

Cella,

Nader

et al. 2023

J Basic Microbiol

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The present study shows the characterization of the bacterial communities associated with different systems during the cultivation of the microalga Tetradesmus obliquus. For that, sequential cultivation was performed in three different systems: (1) Photobioreactor bench‐scale; (2) flat‐panel photobioreactor; and (3) thin‐layer cascade. Cultures were monitored daily for growth parameters and biomass samples were collected for characterization of bacterial communities using metagenomic. A total of 195,177 reads were produced, resulting in the identification of 72 OTUs. In the grouping of bacterial communities, 3 phyla, 6 classes, 28 families, and 35 taxa were found. The bacteria Brevundimonas and Porphyrobacter had a higher relative abundance compared with other taxa found. These taxa were present in all cultivation systems forming a possible core community. Bacterial communities associated with different cultivation systems of the microalga T. obliquus showed an increase in taxa richness and diversity in the super‐intensive and intensive systems.

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Surface-to-volume ratio influence on the growth of Scenedesmus obliquus in a thin-layer cascade system

Cited by 19 publications

References 28 publications

Effects of Microalgae Addition and Fish Feed Supplementation in the Integrated Rearing of Pacific White Shrimp and Nile Tilapia Using Biofloc Technology

Effects of Microalgae Addition and Fish Feed Supplementation in the Integrated Rearing of Pacific White Shrimp and Nile Tilapia Using Biofloc Technology

A multidisciplinary review ofTetradesmus obliquus: a microalga suitable for large‐scale biomass production and emerging environmental applications

Bacterial assemblages structure in intensive cultivations of the microalga Tetradesmus obliquus

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