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1. Agar extraction from Pyropia haitanensis residue after the removal and purification of phycobiliproteins

Author:
Zhao, Ping; Niu, Jianfeng; Huan, Li; Gu, Wenhui; Wu, Mingjiang; Wang, Guangce
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2497-2505
ISSN:
0921-8971
Subject:
DNA; Pyropia; agar; ammonium nitrogen; bacterial culture; biochemical oxygen demand; chemical oxygen demand; culture media; developmental stages; economic valuation; edible seaweed; electrophoresis; food processing; gel strength; gelatinization temperature; industrial applications; melting point; phosphorus; phycobiliprotein; physicochemical properties; sulfates; total nitrogen; total suspended solids; wastes; China
Abstract:
... Pyropia haitanensis is one of the most important and commercial species of edible seaweed in China. However, at its late growth stages it is unsuitable for food processing and is usually treated as waste. The present study investigated the full use of aging Py. haitanensis and attempted to improve its economic value through the purification of R-phycoerythrin combining the extraction of agar from ...
DOI:
10.1007/s10811-019-1735-z

2. Algal diversity and traits predict biomass yield and grazing resistance in wastewater cultivation

Author:
Thomas, Patrick K.; Dunn, Gary P.; Coats, Erik R.; Newby, Deborah T.; Feris, Kevin P.
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2323-2334
ISSN:
0921-8971
Subject:
algae; algae culture; biomass production; crops; economics; engineering; grazing intensity; models; pests; risk reduction; species richness; stoichiometry; wastewater
Abstract:
... Increased community diversity has been proposed as a strategy to increase productivity of algal cultures and reduce the risk of major pond collapses caused by grazing pests, which would enhance economics of wastewater-based mass algal cultivation. We tested whether higher algal diversity would increase biomass yield when grown in dairy wastewater, and whether polycultures would exceed the biomass ...
DOI:
10.1007/s10811-019-01764-2
CHORUS:
10.1007/s10811-019-01764-2

3. An improved and reliable method for microalgae direct PCR

Author:
Chen, Yuxian; Bi, Congbin; Tong, Shaoming; Gong, Zheng; Hou, Hesheng
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2411-2421
ISSN:
0921-8971
Subject:
DNA; Phaeodactylum tricornutum; analysis of variance; boiling; buffers; developmental stages; fluorescence microscopes; fluorescence microscopy; genes; microalgae; octoxynol; polymerase chain reaction; ribosomal RNA; screening
Abstract:
... In recent years, methods of microalgal direct PCR have been used frequently, which simplified the DNA isolation procedure and also facilitated identification of unknown natural microalgal isolates. However, our recent attempts to amplify the 18S rRNA gene of Phaeodactylum tricornutum using the protocols reported led to poor repeatability. To explore the reasons for the instability of these methods ...
DOI:
10.1007/s10811-019-01768-y

4. Assimilation of dietary nitrogen supplied by fish meal and microalgal biomass from Spirulina (Arthrospira platensis) and Nannochloropsis oculata in shrimp Litopenaeus vannamei fed compound diets

Author:
Gamboa-Delgado, Julián; Morales-Navarro, Yonatan Izahí; Nieto-López, Martha G.; Villarreal-Cavazos, David Alonso; Cruz-Suárez, Lucía Elizabeth
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2379-2389
ISSN:
0921-8971
Subject:
Arthrospira platensis; Litopenaeus vannamei; Nannochloropsis; Spirulina; aquaculture feeds; biomarkers; biomass; carbon; diet; feed industry; fish meal; ingredients; microalgae; nitrogen; nutrients; postlarvae; rearing; shrimp
Abstract:
... The biomass of several microalgae species represents one of many single cell-derived products with great potential as dietary ingredients for the aquaculture feed industry. The present study compares the assimilation of dietary nitrogen and total dry matter supplied by fish meal and biomass from Spirulina (Arthrospira platensis) and Nannochloropsis oculata in postlarval Pacific white shrimp, Litop ...
DOI:
10.1007/s10811-019-1732-2

5. Bioaccumulation and biotransformation of arsenic by the brown macroalga Sargassum patens C. Agardh in seawater: effects of phosphate and iron ions

Author:
Mamun, M. Abdullah Al; Omori, Yoshiki; Papry, Rimana Islam; Kosugi, Chika; Miki, Osamu; Rahman, Ismail M. M.; Mashio, Asami S.; Maki, Teruya; Hasegawa, Hiroshi
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2669-2685
ISSN:
0921-8971
Subject:
Sargassum; absorption; adsorption; arsenic; bioaccumulation; biotransformation; chlorophyll; ions; iron; macroalgae; marine ecosystems; metabolites; oxidation; phosphates; seawater; toxicity
Abstract:
... The toxicity and bioaccumulation and biotransformation potential of inorganic arsenic (IAs) species As(V) and As(III) were investigated using Sargassum patens under laboratory culture for 7 days. Algal chlorophyll fluorescence decreased with increasing As(V) and As(III) concentrations, being significantly affected by As(III) treatments. Higher As(III) concentration negatively affected growth rate, ...
DOI:
10.1007/s10811-018-1721-x

6. Characterization of functional materials derived from tropical red seaweed Hypnea musciformis produced by subcritical water extraction systems

Author:
Pangestuti, Ratih; Getachew, Adane Tilahun; Siahaan, Evi Amelia; Chun, Byung-Soo
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2517-2528
ISSN:
0921-8971
Subject:
2,2-diphenyl-1-picrylhydrazyl; Hypnea; antioxidant activity; antioxidants; ascorbic acid; chlorogenic acid; corn oil; cosmetics; emulsifiers; emulsifying properties; flavonoids; gallic acid; high performance liquid chromatography; hydrolysates; hydrolysis; industry; macroalgae; phenol; sunflower oil; temperature; thermal stability; Indonesia
Abstract:
... Hypnea musciformis is an edible tropical red seaweed species and still considered as an underexploited seaweed species in Indonesia. In this study, H. musciformis was hydrolyzed using the subcritical water extraction (SCWE) system. Different solid to liquid ratios (S/L ratios 1:150, 1:100, and 1:50) and six different temperature conditions (120–270 °C with 30 °C increments) were applied to obtain ...
DOI:
10.1007/s10811-019-1754-9

7. Chemical profile and antioxidant activities of 26 selected species of seaweeds from Kuwait coast

Author:
Farvin, K. H. Sabeena; Surendraraj, A.; Al-Ghunaim, Aws; Al-Yamani, Faiza
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2653-2668
ISSN:
0921-8971
Subject:
Canistrocarpus cervicornis; Padina; Polysiphonia; Sargassum; alkaloids; antioxidant activity; antioxidants; bioactive compounds; bleaching agents; cardiac glycosides; chemical constituents of plants; coasts; ethanol; flavonoids; hydroquinone; iron; macroalgae; quinones; salinity; screening; steroids; terpenoids; water temperature; Kuwait; Persian Gulf
Abstract:
... The Kuwait coast is unique with high water temperature (36 °C), salinity (34–45 ppt), and UV index (8–9). Although 113 species of seaweeds are reported from this coast, not much work has been done to explore the bioactive compounds present in these seaweeds and their antioxidant potential. In the present study, water, 50% ethanol, and absolute ethanolic extracts of 26 species of seaweeds collected ...
DOI:
10.1007/s10811-019-1739-8

8. Combination of utilization of CO2 from flue gas of biomass power plant and medium recycling to enhance cost-effective Spirulina production

Author:
Cui, Huijun; Yang, Zihan; Lu, Zhe; Wang, Qishuo; Liu, Jin; Song, Lirong
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2175-2185
ISSN:
0921-8971
Subject:
Spirulina maxima; activated carbon; biomass; carbon dioxide; carbon dioxide fixation; carbon sequestration; cost effectiveness; feed additives; flue gas; growth performance; microalgae; nutrients; photobioreactors; power plants; recycling; specific growth rate
Abstract:
... Carbon dioxide (CO₂) sequestration by microalgae has received widespread attention. Growth and biomass quality using flue gas, combined with medium recycling, were evaluated in this study. Results indicated that Spirulina maxima FACHB 438 can use flue gas from biomass power plant as sole carbon source. The final biomass of 26.30, 22.10, and 23.95 g in fresh medium (FM), recycled medium (RM), and r ...
DOI:
10.1007/s10811-019-1736-y

9. Community-level changes in periphytic biofilm caused by copper contamination

Author:
Sousa, Mariana L.; Chow, Fungyi; Pompêo, Marcelo L. M.
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2401-2410
ISSN:
0921-8971
Subject:
Bacillariophyceae; Cyanobacteria; algicides; aquatic ecosystems; bioaccumulation; biofilm; chlorophyll; community structure; copper; food chain; mucilages; periphyton; photosynthesis; pollutants; primary productivity; sediments; temperature; toxicity
Abstract:
... Periphyton has been recognized as an important element in aquatic food chains due to its role in primary production. More recently, it has been used as bioindicator of contamination in reservoirs since biofilm analysis can support in understanding the impacts of bottom-up contaminants to the reservoirs. Copper (Cu) is one of these pollutants which has been used as an algicide; it accumulates in th ...
DOI:
10.1007/s10811-019-1734-0

10. Comparative analysis of sugar and mineral content of Sargassum spp. collected from different coasts of Sri Lanka

Author:
Thadhani, Vinitha M.; Lobeer, Andrew; Zhang, Wei; Irfath, M.; Su, Peng; Edirisinghe, Nuwanthika; Amaratunga, Gehan
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2643-2651
ISSN:
0921-8971
Subject:
Sargassum polycystum; Sargassum wightii; alginates; arsenic; cadmium; calcium; chromium; coasts; cobalt; copper; fucoidan; fucose; glucose; iron; macroalgae; magnesium; manganese; mineral content; nickel; palladium; potassium; sodium; sugar content; surveys; zinc; Sri Lanka
Abstract:
... Sargassum is one of the major and commercially viable macro-algae found in the coastal zone of Sri Lanka. Sargassum wightii and Sargassum crassifolium were identified as the two major Sargassum species, along with substantial amounts of S. polycystum. An approximately 144t dry weight of these three main Sargassum species has been roughly estimated. During this study, a comprehensive survey of the ...
DOI:
10.1007/s10811-019-01770-4

11. Comparison of β-carotene and Spirulina (Arthrospira platensis) in mullet (Mugil liza) diets and effects on antioxidant performance and fillet colouration

Author:
Rosas, Victor Torres; Monserrat, José María; Bessonart, Martin; Magnone, Larisa; Romano, Luis Alberto; Tesser, Marcelo Borges
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2391-2399
ISSN:
0921-8971
Subject:
Arthrospira platensis; Mugil liza; Spirulina; animal welfare; antioxidant activity; antioxidants; aquaculture; beta-carotene; color; colorimetry; experimental diets; feed conversion; fillets; fish feeds; juveniles; lipid peroxidation; liver; mullet; muscles; specific growth rate; thiobarbituric acid-reactive substances
Abstract:
... The addition of pure carotenoids is a common practice in some aquaculture species production since its use in fish feed is known to improve carcass and antioxidant capacity. Spirulina (Arthrospira) cyanobacteria are a rich source of carotenoids that has proven health benefits for fish welfare. In the current experiment, four isonitrogenous (38%) isolipidic (9%) diets were made, including a control ...
DOI:
10.1007/s10811-019-01773-1

12. Correction to: Treating anaerobically digested piggery effluent (ADPE) using microalgae in thin layer reactor and raceway pond

Author:
Raeisossadati, Mohammadjavad; Vadiveloo, Ashiwin; Bahri, Parisa A.; Parlevliet, David; Moheimani, Navid Reza
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2321
ISSN:
0921-8971
Subject:
anaerobic digestion; animal wastes; effluents; microalgae
Abstract:
... The original version of this article unfortunately contained mistakes. In the Abstract section, there are 2 (two) units that should be corrected to “g m⁻² d⁻¹”, namely: 4.2 g m⁻²s⁻¹ should be changed to 4.2 g m⁻²d⁻¹ and 1.9 g m⁻²s⁻¹ should be changed to 1.9 g m⁻²d⁻¹. ...
DOI:
10.1007/s10811-019-01820-x

13. Cryopreservation of Synechococcus elongatus UTEX 2973

Author:
Racharaks, Ratanachat; Peccia, Jordan
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2267-2276
ISSN:
0921-8971
Subject:
Synechococcus elongatus; cell growth; cell viability; cooling; cryopreservation; cryoprotectants; developmental stages; dimethyl sulfoxide; freezing; genes; genetic engineering; glucose-1-phosphate adenylyltransferase; mutants
Abstract:
... The rapidly growing cyanobacterium Synechococcus elongatus UTEX 2973 is an ideal candidate for genetic modification. A cryopreservation protocol suitable for this strain was developed by optimizing three main parameters: cryoprotectant type and concentration, cell growth phase, and freezing procedure. Cells harvested in stationary phase were more viable after cryopreservation compared to log phase ...
DOI:
10.1007/s10811-018-1714-9

14. Culture of the seaweed Ulva ohnoi integrated in a Solea senegalensis recirculating system: influence of light and biomass stocking density on macroalgae productivity

Author:
Oca, Joan; Cremades, Javier; Jiménez, Patricia; Pintado, José; Masaló, Ingrid
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2461-2467
ISSN:
0921-8971
Subject:
Solea senegalensis; Ulva; aquaculture systems; biomass production; effluents; growth models; light intensity; macroalgae; photons; photosynthesis; specific growth rate; standard deviation; stocking rate; tanks
Abstract:
... A growth model was developed to optimize the management of multi-trophic aquaculture systems by analyzing the influence of light and biomass stocking density (SD) in the productivity of Ulva ohnoi fed with the effluents from Solea senegalensis culture tanks. Growth rates and productivity were determined in three flat bottom algae tanks with different incident photon irradiances (E₀) (163, 280, and ...
DOI:
10.1007/s10811-019-01767-z

15. Edible green seaweed, Ulva intestinalis as an ingredient in surimi-based product: chemical composition and physicochemical properties

Author:
Jannat-Alipour, Hakimeh; Rezaei, Masoud; Shabanpour, Bahareh; Tabarsa, Mehdi
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2529-2539
ISSN:
0921-8971
Subject:
Hypophthalmichthys molitrix; Ulva; carbohydrates; docosahexaenoic acid; edible seaweed; emulsifying; essential amino acids; fatty acid composition; gel strength; gels; ingredients; macroalgae; minerals; nutritive value; omega-3 fatty acids; pastes; surimi; water holding capacity
Abstract:
... This study aimed to investigate the chemical composition and physicochemical properties of Ulva intestinalis and its potential application in surimi fortification. Compositional analysis showed that U. intestinalis powder was high in minerals (19%), protein (13.5%), and carbohydrate (57%), but low in lipid (2.7%), though the fatty acid profile comprised appreciable amounts of unsaturated fatty aci ...
DOI:
10.1007/s10811-019-1744-y

16. Effect of temperature variation in Agarophyton chilensis: contrasting the response of natural and farmed populations

Author:
Usandizaga, Sara; Camus, Carolina; Kappes, José Luis; Guillemin, Marie-Laure; Buschmann, Alejandro H.
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2709-2717
ISSN:
0921-8971
Subject:
Rhodophyta; anthropogenic activities; climate change; coasts; crops; domestication; electron transfer; farmers; farming systems; genetic variation; life history; phenotype; photosynthesis; temperature; vegetative propagation; Chile
Abstract:
... During the domestication process, farmers influence the reproduction and care of organisms to ensure a predictable supply of the resource of interest, causing changes in phenotypic and genotypic character frequencies. In Chile, as a result of unconscious selection and domestication process, farmed populations of the red alga Agarophyton chilensis have most likely undergone a reduction in genetic d ...
DOI:
10.1007/s10811-019-1757-6

17. Elucidating the role of Kelpak® on the growth, phytohormone composition, and phenolic acids in macronutrient-stressed Ceratotheca triloba

Author:
Masondo, Nqobile A.; Aremu, Adeyemi O.; Kulkarni, Manoj G.; Petřík, Ivan; Plačková, Lenka; Šubrtová, Michaela; Novák, Ondřej; Grúz, Jiri; Doležal, Karel; Strnad, Miroslav; Finnie, Jeffrey F.; Van Staden, Johannes
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2687-2697
ISSN:
0921-8971
Subject:
Ceratotheca triloba; carbohydrates; greenhouses; leaves; nitrogen; nutrient content; nutrient deficiencies; nutrient uptake; phenolic acids; phosphorus; plant hormones; potassium; seedlings; seeds; soil
Abstract:
... We evaluated the role of Kelpak® on growth, nutritional content, phytohormones, and phenolic acids in the angiosperm Ceratotheca triloba (Bernh.) Hook.f. grown under macronutrient-deficient conditions. Seeds were germinated in the greenhouse and established seedlings were treated with 50% Hoagland’s solution (50% HS) or nutrient-deficient solutions lacking one of the following: nitrogen (-N), phos ...
DOI:
10.1007/s10811-019-01759-z

18. Elucidating the symbiotic interactions between a locally isolated microalga Chlorella vulgaris and its co-occurring bacterium Rhizobium sp. in synthetic municipal wastewater

Author:
Ferro, L.; Colombo, M.; Posadas, E.; Funk, C.; Muñoz, R.
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2299-2310
ISSN:
0921-8971
Subject:
Chlorella vulgaris; Rhizobium; algae culture; bacteria; biomass production; carbon dioxide; coculture; cost effectiveness; fatty acid composition; microalgae; microbial activity; municipal wastewater; mutualism; nitrogen; nutrients; organic carbon; oxygen; phosphates; photosynthesis; synergism; wastewater treatment; water reuse
Abstract:
... Co-cultivation of microalgae and bacteria during municipal wastewater treatment can boost carbon and nutrient recovery as a result of their synergistic interactions. The symbiotic relationships between the locally isolated microalga Chlorella vulgaris and the bacterium Rhizobium sp., co-isolated from municipal wastewater, were investigated batchwise under photoautotrophic, heterotrophic, and mixot ...
DOI:
10.1007/s10811-019-1741-1

19. Enhancement of lipid extraction for efficient methyl ester production from Chlamydomonas sp.

Author:
Sivaramakrishnan, Ramachandran; Incharoensakdi, Aran
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2365-2377
ISSN:
0921-8971
Subject:
Chlamydomonas; endothermy; energy; feedstocks; fuels; hexane; lipids; microalgae; oils; solvents; temperature; thermodynamics; thermogravimetry; transesterification; ultrasonics
Abstract:
... The process development of microalgae oil extraction was optimized in the present study. The ultrasound was used to disrupt the isolated Chlamydomonas sp. cells. Among the various solvents tested, hexane showed the maximum extraction efficiency. Other extraction parameters such as solvent/algae ratio, temperature, and stirring speed were also optimized and found to be 6:1, 55 °C, and 300 rpm respe ...
DOI:
10.1007/s10811-019-1758-5

20. Evaluation of the potential of Chlorella sp. HS2, an algal isolate from a tidal rock pool, as an industrial algal crop under a wide range of abiotic conditions

Author:
Yun, Jin-Ho; Cho, Dae-Hyun; Heo, Jina; Lee, Yong Jae; Lee, Bongsoo; Chang, Yong Keun; Kim, Hee-Sik
Source:
Journal of applied phycology 2019 v.31 no.4 pp. 2245-2258
ISSN:
0921-8971
Subject:
Chlorella; algae; algae culture; biomass production; carbon dioxide; crops; environmental factors; fatty acid methyl esters; flue gas; lutein; oleic acid; organic carbon; palmitates; salinity; screening; sodium bicarbonate; specific growth rate; temperature; wastewater treatment
Abstract:
... While the screening and development of robust algal crops have mostly focused on determining strains that exhibit the highest possible yields of biomass or desirable biomolecules, these criteria do not necessarily lead to finding algal strains with high tolerance to varying outdoor cultivation conditions. Herein, we report Chlorella sp. HS2 isolated from a tidal rock pool nearby a local coastal wa ...
DOI:
10.1007/s10811-019-1751-z