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3 results on '"Desmodesmus opoliensis"'

1. An algal regulation-based molasses vinasse anaerobic digestion strategy for enhancing organic matter removal and methane production.

Author

Chen, Xinqiang, Mao, Huipeng, Cui, Yunwei, Deng, Hongyu, Zhao, Tianche, Liu, Jiantao, Huang, Luodong, and Shen, Peihong

Subjects
*ANAEROBIC digestion, *VINASSE, *ORGANIC compounds, *ACETIC acid, *BIOCHEMICAL substrates, *METHANE as fuel
Abstract

Microalgae are suitable type of anaerobic co-digestion (AcoD) substrate that can effectively alleviate microbial inhibition caused by substrate characteristics (molasses vinasse, MV). Therefore, our investigated the synergistic effects, organic matter removal, and potential microbiological impacts in the AcoD of MV and Desmodesmus opoliensis strain GXU-A4. We conducted batch AcoD using simple dehydrated GXU-A4 (Fresh D. opoliensis , FDO) and lipid-extracted GXU-A4 (Pretreated D. opoliensis , PDO). The highest methane potential of PDO biomass was 124.9 ± 0.8 mL g−1 VS, while AcoD with MV increased methane production by 11 % and promoted acetic acid production. FDO biomass reduced nitrogen-containing organic matter and humic-like production. Microbial community and functional prediction analyses revealed that AcoD altered the distribution of hydrolytic acidogenic bacteria, such as Bacteroidetes and Cloacimonadota (W5). Our study provide a new insight into the control strategy of AcoD for methane production, removal of organic matter, and microbial mechanisms in algae biomass. [Display omitted] [ABSTRACT FROM AUTHOR]

Published
2024
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2. Phycoremediation of water of Ellenga beel polluted with paper mill effluent using Chlorella ellipsoidea and Desmodesmus opoliensis

Author

Ajitabh Bora, Abhinav Sharma, Susmita Das, Nirmali Gogoi, Sanjai K. Dwivedi, and Subham C. Mondal

Subjects
Chlorella ellipsoidea, business.industry, Environmental science, Paper mill, Desmodesmus opoliensis, Pulp and paper industry, business, Effluent, General Environmental Science
Abstract

The present study investigated the phycoremediation efficacy of two freshwater green microalgae Chlorella ellipsoidea and Desmodesmus opoliensis for treatment of water of Ellenga beel, a wetland lo...

Published
2021

3. Planktonic Microalgae in Recreational Fishponds of the Crato Municipality, Ceará State, Brazil

Author

Anne Jussara Rangel, Renato Juciano Ferreira, Karla Jaqueline do Nascimento, Tânia Maria Lopes dos Santos, Sírleis Rodrigues Lacerda, and Maria Irismã Libório Góes

Subjects
biology, Phytoplankton composition, Botany, Desmodesmus, Chlorophyta, Plankton, Desmodesmus opoliensis, Scenedesmaceae, General Agricultural and Biological Sciences, biology.organism_classification, Scenedesmus, General Environmental Science, Desmodesmus armatus
Abstract

This study aimed to evaluate the occurring phytoplankton composition in the two recreational fishponds in Crato municipality, south of Ceara. Samples for the study were collected monthly, from June 2012 to March 2013, using plankton net and glass separator (20 μm), fixed with 4% formalin and deposited in the Botany Laboratory of the assets of Regional University of Cariri, where were made analysis and taxonomic identification. The phytoplankton community proved to be represented by 100 taxa belonging to five divisions: Chlorophyta which contributed 56% of total taxa, followed by Euglenophyta (18%), Cyanobacteria (16%), Bacillariophyta (7%) and Dinophyta (3% ). The Scenedesmaceae family presented the highest number of taxa (19) and Scenedesmus and Desmodesmus genres presented greater number of species. Desmodesmus comunis (Hegewald) Hegewald and Desmodesmus opoliensis (P. Hichter) Hegewald (Chlorophyta) and Aphanocapsa sp. (Cyanobacteria) were classified as dominant and other two named species of Chlorophyta abundant Desmodesmus armatus (R. Chodat) E. Hegewald and Scenedesmus producto-capitatus Schumula. As the frequency 10% were classified as very frequent, 14% frequent and the others too infrequent. 75% had average diversity and the community with equitable distribution of taxa. The set of information made in relation to the phytoplankton community characterized the ecosystems studied from meso to eutrophic. MICROALGAS PLANCTONICAS DE PESQUEIROS DO MUNICIPIO DO CRATO, CEARA, BRASIL O presente estudo teve como objetivo avaliar a composicao fitoplanctonica ocorrente em dois pesqueiros do municipio do Crato, Sul do Estado do Ceara. As amostras para o estudo foram coletadas mensalmente, no periodo de junho de 2012 a marco de 2013, utilizando rede e copo separador de plâncton (20µm), fixadas com formol a 4% e depositadas no acervo do Laboratorio de Botânica da Universidade Regional do Cariri, onde foram efetuadas analise e identificacao taxonomica. A comunidade fitoplanctonica mostrou-se representada por 100 taxons distribuidos em cinco divisoes: Chlorophyta, que contribuiu com 56% do total de taxons, seguida de Euglenophyta (18%), Cyanobacteria (16%), Bacillariophyta (7%) e Dinophyta (3%). A familia Scenedesmaceae foi a que apresentou maior numero de taxons (19) e os generos Desmodesmus e Scenedesmus apresentaram maior numero de especies. Desmodesmus comunis (Hegewald) Hegewald e Desmodesmus opoliensis (P. Hichter) Hegewald (Chlorophyta) e Aphanocapsa sp. (Cyanobacteria) foram classificadas como dominantes e outras duas especies de Chlorophyta denominadas abundantes Desmodesmus armatus (R. Chodat) E. Hegewald e Scenedesmus producto-capitatus Schumula. Quanto a frequencia, 10% foram classificadas como muito frequentes, 14% frequentes e as demais pouco frequentes. 75% apresentaram media diversidade e a comunidade com distribuicao equitativa dos taxons. O conjunto de informacoes levantadas em relacao a comunidade fitoplanctonica caracterizou os ecossistemas estudados de meso a eutrofico. PALAVRAS-CHAVE: Cyanobacteria; Diversidade; Fitoplâncton

Published
2016

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