Azorean macroalgae (Petalonia binghamiae,Halopteris scopariaandOsmundea pinnatifida) bioprospection: a study of fatty acid profiles and bioactivity

2018 ◽  
Vol 54 (3) ◽  
pp. 880-890 ◽  
Author(s):  
Ana M. Campos ◽  
Joana Matos ◽  
Cláudia Afonso ◽  
Romina Gomes ◽  
Narcisa M. Bandarra ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profiles ◽  
Petalonia Binghamiae

Trophic niches determined from fatty acid profiles of sympatric coral reef mesopredators

2019 ◽  
Vol 632 ◽  
pp. 159-174 ◽  
Author(s):  
SL Bierwagen ◽  
H Pethybridge ◽  
MR Heupel ◽  
A Chin ◽  
CA Simpfendorfer
Keyword(s):  
Fatty Acid ◽  
Coral Reef ◽  
Fatty Acid Profiles ◽  
Trophic Niches

The assessment of biofilm community composition on plumbing materials in filtered and unfiltered water distribution systems

2003 ◽  
Vol 3 (1-2) ◽  
pp. 187-191
Author(s):  
M.M. Critchley ◽  
N.J. Cromar ◽  
H.J. Fallowfield
Keyword(s):  
Drinking Water ◽  
Fatty Acid ◽  
Community Composition ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Polymer Materials ◽  
Fatty Acid Profiles ◽  
Water Supplies ◽  
Drinking Water Distribution Systems

Biofilms have been extensively characterised within drinking water distribution systems. However, the significance of materials on biofilm species diversity is not established. This study investigated the community composition of biofilms on plumbing materials receiving filtered and unfiltered water supplies. Biofilms were extracted from polybutylene, polyethylene, cross-linked polyethylene, unplasticised polyvinyl chloride and copper tubes in sampling rigs receiving Murray-Onkaparinga water before or after filtration. Biofilms were extracted and analysed for fatty acid composition using the FAME™ methodology. There were differences in the fatty acid profiles of biofilms and the respective water supplies, indicating differences in the attached and planktonic communities. The results also showed significant differences in the fatty acid profiles of biofilms on the polymer materials compared to copper, suggesting variations in biofilm populations on the different materials. The potential for materials to select for microbial populations has significant implications for the ecology of drinking water biofilms.

scholarly journals Fatty acid profiles of muscle, liver, heart and kidney of Australian prime lambs fed different polyunsaturated fatty acids enriched pellets in a feedlot system

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hung Van Le ◽  
Don Viet Nguyen ◽  
Quang Vu Nguyen ◽  
Bunmi Sherifat Malau-Aduli ◽  
Peter David Nichols ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Fatty Acid Profiles

scholarly journals Fatty acid profiles of muscle from large yellow croaker (Pseudosciaena crocea R.) of different age

2009 ◽  
Vol 10 (2) ◽  
pp. 154-158 ◽  
Author(s):  
Hong-gang Tang ◽  
Li-hong Chen ◽  
Chao-geng Xiao ◽  
Tian-xing Wu
Keyword(s):  
Fatty Acid ◽  
Large Yellow Croaker ◽  
Fatty Acid Profiles ◽  
Pseudosciaena Crocea

scholarly journals PSXI-32 Effects of algae DHA on fatty acid profile of plasma red blood cell membrane and fecal microbiota of adult cats

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 319-319
Author(s):  
Carrie James ◽  
Sandra L Rodriguez-Zas ◽  
Maria R C de Godoy
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Blood Cell ◽  
Fish Oil ◽  
Red Blood Cell ◽  
Fecal Microbiota ◽  
Fatty Acid Profiles ◽  
Male Adult ◽  
Poultry Fat ◽  
Adult Cats

Abstract There is evidence that algae can be a sustainable alternative of omega-3 polyunsaturated fatty acids (w-3 PUFA; DHA and EPA) in the diets of felines, but more information is needed to determine bioavailability of algal w-3 PUFAs in felines. Therefore, the objective of this study was to determine the effects of dietary supplementation of algae DHA on plasma and red blood cell (RBC) membrane fatty acid profiles and fecal microbiota of adult cats. A complete randomized design was utilized with thirty female and male adult cats (mean age: 1.8 ± 0.03 yr, mean BW: 4.5 ± 0.8 kg) which were fed an assigned diet for 90 d. Three diets were formulated with poultry fat alone or inclusion of 2% fish oil or 2% algae DHA meal. Blood samples were collected after fasting on 0, 30, 60 and 90 d to be analyzed for plasma and red blood cell fatty acid profiles. A fresh fecal sample was collected within 15 min of defecation from each cat to be analyzed for fecal microbiota. Illumina 16S rRNA sequencing from V4 region was completed using MiSeq and analyzed using QIIME 2. Plasma and RBC fatty acid concentrations at baseline were similar among all cats and treatment groups. However, dietary treatment had a significant effect on the concentrations of several fatty acids in plasma and RBC over time. Plasma and RBC concentrations of DHA were greater (P < 0.05) for cats fed the algal DHA diet compared to the control and fish oil diets. Conversely, plasma and RBC concentrations of EPA did not differ among treatments when analyzed as a change from baseline. Beta- and alpha-diversity did not differ among treatments, indicating that 2% fish oil or algal-DHA meal does alter fecal microbiota of cats in contrast with cats fed a poultry fat-based diet.

scholarly journals Modeling the effect of heat treatment on fatty acid composition in home-made olive oil preparations

2020 ◽  
Vol 15 (1) ◽  
pp. 606-618 ◽  
Author(s):  
Dani Dordevic ◽  
Ivan Kushkevych ◽  
Simona Jancikova ◽  
Sanja Cavar Zeljkovic ◽  
Michal Zdarsky ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Olive Oil ◽  
Heating Temperature ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Fatty Acid Profiles ◽  
Refined Olive Oil ◽  
Cross Correlation Analysis

AbstractThe aim of this study was to simulate olive oil use and to monitor changes in the profile of fatty acids in home-made preparations using olive oil, which involve repeated heat treatment cycles. The material used in the experiment consisted of extra virgin and refined olive oil samples. Fatty acid profiles of olive oil samples were monitored after each heating cycle (10 min). The outcomes showed that cycles of heat treatment cause significant (p < 0.05) differences in the fatty acid profile of olive oil. A similar trend of differences (p < 0.05) was found between fatty acid profiles in extra virgin and refined olive oils. As expected, the main differences occurred in monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs). Cross-correlation analysis also showed differences between the fatty acid profiles. The most prolific changes were observed between the control samples and the heated (at 180°C) samples of refined olive oil in PUFAs, though a heating temperature of 220°C resulted in similar decrease in MUFAs and PUFAs, in both extra virgin and refined olive oil samples. The study showed differences in fatty acid profiles that can occur during the culinary heating of olive oil. Furthermore, the study indicated that culinary heating of extra virgin olive oil produced results similar to those of the refined olive oil heating at a lower temperature below 180°C.

scholarly journals Seasonal Variation of the Proximate Composition, Mineral Content, Fatty Acid Profiles and Other Phytochemical Constituents of Selected Brown Macroalgae

Marine Drugs ◽  
2021 ◽  
Vol 19 (4) ◽  
pp. 204
Author(s):  
Marco Garcia-Vaquero ◽  
Gaurav Rajauria ◽  
Marta Miranda ◽  
Torres Sweeney ◽  
Marta Lopez-Alonso ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Mineral Content ◽  
Fatty Acid Profiles ◽  
Laminaria Digitata ◽  
Laminaria Hyperborea ◽  
Brown Macroalgae ◽  
The West ◽  
Macroalgal Species ◽  
Mineral Profile ◽  
Phytochemical Constituents

The main objective was to determine the chemical, phytochemical, fatty acid and mineral profiles of three commercially relevant brown macroalgae (Laminaria digitata, Laminaria hyperborea and Ascophyllum nodosum) collected each season for two years off the west coast of Ireland. All the chemical, phytochemical, fatty acid and minerals analysed varied significantly depending on the macroalgal species, season and year of collection. Overall, the protein contents of macroalgae were negatively correlated with carbohydrate content. Protein (2–11%) was at its highest during winter and/or spring, decreasing to a minimum during summer and/or autumn. The three macroalgal species analysed in this study had clearly differentiated fatty acid profiles. The concentration of fatty acids was higher in A. nodosum compared with both Laminaria species. The mineral profile of the three macroalgal species was rich in essential metals, particularly Ca, Mg and P, while the levels of I were approximately 9- to 10-fold higher in both Laminaria spp. compared with A. nodosum. The levels of toxic metals (Cd, Hg and Pb) in all the macroalgal species studied were low in the current study; while the levels of total As were high (49–64 mg/kg DW macroalgae) compared with previous reports.

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