Effect of Salinity on the Growth and Fatty Acid Composition of Ulva pertusa Kjellman (Chlorophyta)

Floreto, E. A. T.; Hirata, Hachirô; Yamasaki, Shigehisa; Castro, S. C.

doi:10.1515/botm.1994.37.2.151

Cited by 20 publications

(11 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The same result is claimed in marine microorganisms (Floreto et al 1994) as well. Hence the effect of salt (NaCl) content on the growth, lipids and fatty acid profile of the fungus Cladosporium sp.…”

Section: Results and Dicussionsupporting

confidence: 83%

Characterization of lipids and fatty acids of the soil derived fungus <i>Cladosporium sp.</i>

De¹,

Verma²

2011

Grasas y Aceites

View full text Add to dashboard Cite

SUMMARY Characterization of lipids and fatty acids of soil derived fungus Cladosporium sp.The fungus Cladosporium sp. was explored for its potential ability to produce lipids, fatty acids and protein. The lipids were characterized by the quantification of acylglycerols and fatty acids. Alterations in lipid and protein accumulation were observed by changing the growth medium, carbon source type (glucose and dextrose) and content, growth period and by developing salt stress through the incorporation of NaCl in the formulation of the medium. Lipid content was found to vary from 6.8  0.3 to 27.3  2.8%, w/w. The major fatty acids accumulated were palmitic, oleic and linoleic. The lipid fraction obtained from a Potato-dextrose medium (containing 2% dextrose and 4% NaCl) accumulated 73.7  3.7%, w/w, oleic acid. Some lipid fractions were found to have fatty acid ratios like saturated, monounsaturated, and polyunsaturated close to 1:1:1 w/w/w. Triacylglycerol was obtained as the major constituent of lipid fractions. KEY-WORDS:Cladosporium sp. -Fatty acid profileLipid content .

show abstract

Section: Results and Dicussionsupporting

confidence: 83%

Characterization of lipids and fatty acids of the soil derived fungus <i>Cladosporium sp.</i>

De¹,

Verma²

2011

Grasas y Aceites

View full text Add to dashboard Cite

show abstract

“…The total lipid content, however, did not vary at different light intensities (Khotimchenko & Yakovleva 2004). Floreto et al (1994) obtained very similar results using Ulva pertusa in their experiments.…”

Section: Factors Affecting Lipid Metabolism and Fatty Acid Compositionmentioning

confidence: 57%

Macroalgae in biofuel production

Suutari

Leskinen

Fagerstedt

et al. 2014

Phycological Research

View full text Add to dashboard Cite

The conversion processes of macroalgae for biofuels can be divided into thermochemical (dry) and microbiological (wet) processes. The chemical composition of macroalgae together with the pre‐treatment method, conversion conditions, and the characteristics of the microbes involved (wet processes) determine the yield and the properties of the biofuel produced. Macroalgae are often rich in carbohydrates, and therefore well suited for biogas, biobutanol and bioethanol productions. The content of triacylglycerols (TAGs) is the best indicator for the suitability of the alga for biodiesel production. TAGs have a high conversion rate to biodiesel, high percentage of fatty acids, and they lack phosphorus, sulfur and nitrogen. Macroalgae can have high metal concentrations, which can have an impact on conversion processes: metals may inhibit or catalyse the processes. High sulfur (especially in green algae) and nitrogen contents are also characteristic to macroalgae, and may be problematic in the production of biogas (NH3‐toxicity) and the use of the oil and biodiesel (high concentrations of H2S and NOx‐compounds). Macroalgae have proven to be suitable material for conversion processes, but further optimization of the processes is needed. At present, macroalgae are not economically, or in many cases not even environmentally, sustainable material when the whole production chain is considered. In this review we summarize information on the chemical composition of macroalgae in a prospect of biofuel production, and the current situation in the field of macroalgal‐based biofuel production.

show abstract

“…The growth of Ulva spp. is determined by abiotic factors, including temperature, light intensity and nutrients, as well as by top-down control through marine invertebrate grazing (Floreto et al 1994, Giannotti and McGlathery 2001, Talylor et al 2001, Choi et al 2010, Mantri et al 2011). The present results demonstrated that the growth of U. australis was controlled by wave activity and herbivorous animals in the field population.…”

Section: Discussionmentioning

confidence: 99%

“…), have been reported (Floreto et al 1994). In addition, U. australis were found to display antioxidant, allelopathic, and antihyperlipidemic activities (Floreto et al 1994). Ecologically, ephemeral algae such as Ulva spp.…”

Section: Introductionmentioning

confidence: 96%

“…In U. australis, physiological responses to exposure to copper and UV light Han 2005, Han et al 2008), as well as various environmental factors (i.e., temperature, light intensity, and nutrients, etc. ), have been reported (Floreto et al 1994). In addition, U. australis were found to display antioxidant, allelopathic, and antihyperlipidemic activities (Floreto et al 1994).…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Effects of wave action and grazers on frond perforation of the green alga, Ulva australis

Choi¹,

Kim²,

Park³

et al. 2015

ALGAE

View full text Add to dashboard Cite

The growth and hole formation of Ulva australis were examined at seven coastal areas of Korea between July and August, 2013. Animal species and weight growing on the Ulva fronds were estimated at Haseom, Pohang, and Woedo. The effects of wave exposure on the morphological features and residential animals of Ulva fronds were investigated at wave-exposed and sheltered sites of Seongsan on October 19, 2013. U. australis had different frond areas (82-665 cm , and between 4.9 and 36.2 holes were observed. Fourteen residential animal species were observed at the three evaluated sites, 75.0 (Haseom) to 408.7 individuals 100 g -1 Ulva (Pohang) per site. The dominant residential species at each site differed with Amphithoe sp. at Haseom, Monodonta spp. at Pohang, and Pagurus sp. at Woedo. The growth (frond area, wet weight) and hole number of Ulva fronds, and the number of residential animals were significantly greater in samples collected from the sheltered shore than the wave-exposed shore of Seongsan. The present results showed U. australis grew well at sheltered shores and had more holes on the fronds due to abundance of residential animals. The dominant residential animals (crabs, gammaridea, and snails) were similar in the Ulva populations of sheltered and wave-exposed shores, but greater species diversity was observed at the exposed shore (18 species ver. 11 species). In conclusion, U. australis is a keystone species providing habitat to various invertebrates and frond holes are positively correlated to the number of residential animals.

show abstract

Effect of Salinity on the Growth and Fatty Acid Composition of Ulva pertusa Kjellman (Chlorophyta)

Cited by 20 publications

References 18 publications

Characterization of lipids and fatty acids of the soil derived fungus <i>Cladosporium sp.</i>

Characterization of lipids and fatty acids of the soil derived fungus <i>Cladosporium sp.</i>

Macroalgae in biofuel production

Effects of wave action and grazers on frond perforation of the green alga, Ulva australis

Contact Info

Product

Resources

About