Carbon and energy fixation of great duckweed Spirodela polyrhiza growing in swine wastewater

Wang, Wenguo; Yang, Chuang; Tang, Xiaoyu; Zhu, Qili; Pan, Ke; Cai, Denggao; Hu, Qichun; Ma, Deying

doi:10.1007/s11356-015-4778-y

Cited by 9 publications

(5 citation statements)

References 31 publications

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“…It has utilisation for various purposes such as waste water remediation as it is able to remove nitrogen (particularly ammonia) with high efficiency (Culley and Epps, 1973;Ornes, 1975, 1977), bio-fuel production (Jarvis et al, 1998;Zhao et al, 2012Zhao et al, , 2014 and recombinant protein production (Khvatkov et al, 2018). It is also reported as a promising substrate for bio-hydrogen production, and recognised as an ideal plant in bioremediation and carbon cycle research (Kuehdorf et al, 2014;Olah et al, 2015;Tang et al, 2014;Wang et al, 2012Wang et al, , 2015Xu and Deshusses, 2015;. The copy number of the genes involved in the biosynthesis of two enzymes glutamine synthetase (GS) and glutamate synthase (GOGAT) are amplified in greater duckweed.…”

Section: Introductionmentioning

confidence: 99%

Production potential of greater duckweed Spirodela polyrhiza (L. Schleiden) and its biochemical composition evaluation

et al. 2019

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The culture technique of greater duckweed Spirodela polyrhiza (L. Schleiden) was standardized in outdoor tanks using three different manures: manure 1-cattle manure, poultry droppings and mustard oil cake, manure 2-urea, potash and triple superphosphate and manure 3-cattle manure, urea, potash and triple superphosphate. Significantly (p<0.05) higher production was recorded in manure 1 compared to others. Manure 1 was subsequently selected for pond culture. In ponds, the production of duckweed was 2020±150 kg ha-1 month-1 dry weight basis. Protein content was significantly higher (p<0.05) in duckweed cultured in manure 1. The amino acid profile study showed the presence of essential (37.4%), non-essential (58.2%) and free (4.5%) amino acids. Leucine, isoleucine and valine contributed 51.4% of total essential amino acids. Duckweed contained 7% lipid and α-linolenic acid (36-37%) was the major fatty acid. The study showed the nutritional value of duckweed as an animal feed ingredient.

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Section: Introductionmentioning

confidence: 99%

Production potential of greater duckweed Spirodela polyrhiza (L. Schleiden) and its biochemical composition evaluation

et al. 2019

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“…Diluted (50%) SeSW was less stressful to L. punctata, which was reflected by higher rates of nutrient uptake: 74%, 43%, and 94% for NH 4 , PO 4 and NO 3 , respectively (Table 1, Figure 1). A broad spectrum of absorption rates of nutrients by L. punctata and other duckweed species has been reported [6,14,30,32,[34][35][36]58,[62][63][64][65][66][67][68]. Short-term treatment of the SeSW by L. punctata did not lead to a significant increase in biomass production (1.5-fold, Table 1).…”

Section: Removal Of Nitrogen and Phosphorus By L Punctatamentioning

confidence: 95%

Aquatic Plants, Landoltia punctata, and Azolla filiculoides as Bio-Converters of Wastewater to Biofuel

Miranda

Kumar

Spangenberg

et al. 2020

Plants

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The aquatic plants, Azolla filiculoides, and Landoltia punctate, were used as complementing phytoremediators of wastewater containing high levels of phosphate, which simulates the effluents from textile, dyeing, and laundry detergent industries. Their complementarities are based on differences in capacities to uptake nitrogen and phosphate components from wastewater. Sequential treatment by L. punctata followed by A. filiculoides led to complete removal of NH4, NO3, and up to 93% reduction of PO4. In experiments where L. punctata treatment was followed by fresh L. punctata, PO4 concentration was reduced by 65%. The toxicity of wastewater assessed by shrimps, Paratya australiensis, showed a four-fold reduction of their mortality (LC50 value) after treatment. Collected dry biomass was used as an alternative carbon source for heterotrophic marine protists, thraustochytrids, which produced up to 35% dry weight of lipids rich in palmitic acid (50% of total fatty acids), the key fatty acid for biodiesel production. The fermentation of treated L. punctata biomass by Enterobacter cloacae yielded up to 2.14 mol H2/mole of reduced sugar, which is comparable with leading terrestrial feedstocks. A. filiculoides and L. punctata can be used as a new generation of feedstock, which can treat different types of wastewater and represent renewable and sustainable feedstock for bioenergy production.

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“…It reproduces by asexually rooting in the form of fronds or thalli and rapidly propagates by budding into daughter fronds . It is a potential bioresource for the production of food, feed, biofuel, and green manure and for bioremediation for wastewater purification. − S. polyrhiza extract can alleviate inflammatory and skin diseases, such as pruritus, eczema, and atopic dermatitis, by inhibiting calcium ion channels, inflammatory mediator release, and mast cell degranulation; therefore, S.…”

Section: Introductionmentioning

confidence: 99%

Melatonin Treatment Enhances the Growth and Productivity of Useful Metabolites in the In Vitro Culture ofSpirodela polyrhiza

Ryu

Noh

et al. 2023

J. Agric. Food Chem.

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Spirodela polyrhiza (Araceae family) is a duckweed species that serves as a potential resource for feed, food, bioremediation, and pharmaceutical applications. In this study, we assessed the effects of different concentrations of melatonin (0, 0.1, 1, and 10 μM) on the growth of S. polyrhiza during in vitro culture and the metabolic profiles and productivities of useful metabolites using gas chromatography–mass spectrometry coupled with multivariable statistical analysis. We found that exogenous melatonin significantly improved the total dry weight and altered the metabolic profiles of S. polyrhiza cultures. Melatonin significantly enhanced the cellular production of useful metabolites, such as γ-aminobutyric acid, dopamine, threonine, valine, and phytosterols. The volumetric productivities (mg/L) of γ-aminobutyric acid, dopamine, campesterol, β-sitosterol, and stigmasterol were the highest in the presence of 10 μM melatonin on day 12. Moreover, the productivities of ascorbic acid and serotonin were the highest in the presence of 1 μM melatonin on day 12. Therefore, melatonin could be used to enhance the production of biomass and useful metabolites during large-scale S. polyrhiza cultivation in cosmetic, food/feed, and pharmaceutical industries.

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Carbon and energy fixation of great duckweed Spirodela polyrhiza growing in swine wastewater

Cited by 9 publications

References 31 publications

Production potential of greater duckweed Spirodela polyrhiza (L. Schleiden) and its biochemical composition evaluation

Production potential of greater duckweed Spirodela polyrhiza (L. Schleiden) and its biochemical composition evaluation

Aquatic Plants, Landoltia punctata, and Azolla filiculoides as Bio-Converters of Wastewater to Biofuel

Melatonin Treatment Enhances the Growth and Productivity of Useful Metabolites in the In Vitro Culture ofSpirodela polyrhiza

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