Seasonal variation of total lipid, fatty acids, fucoxanthin content, and antioxidant properties of two tropical brown algae (Nizamuddinia zanardinii and Cystoseira indica) from Iran

2015 ◽  
Vol 28 (2) ◽  
pp. 1323-1331 ◽  
Author(s):  
Gilan Attarn Fariman ◽  
Salim Jangizehi Shastan ◽  
Mir Mehdi Zahedi
Keyword(s):  
Fatty Acids ◽  
Seasonal Variation ◽  
Total Lipid ◽  
Brown Algae ◽  
Antioxidant Properties ◽  
Cystoseira Indica ◽  
Nizamuddinia Zanardinii

scholarly journals In Vitro Antimicrobial, Antioxidant and Anticancer Activities of Egyptian Citrus Beebread

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2433
Author(s):  
Nesren Elsayed ◽  
Hatem Sharaf El-Din ◽  
Ammar B. Altemimi ◽  
Hanaa Y. Ahmed ◽  
Anubhav Pratap-Singh ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Inhibitory Activity ◽  
Nutritive Value ◽  
Antioxidant Properties ◽  
Antitumor Agent ◽  
Monounsaturated Fatty Acids ◽  
Free Sugar ◽  
Natural Food ◽  
Anticancer Activities

In this study, Egyptian beebread (EBB) was investigated for its nutritive value, chemical composition, antioxidant properties, antimicrobial and antitumor activities. Results indicated that EBB was a good source of protein (23.58 ± 0.183 g/100 g BB), total free sugar (20.266 ± 0.930) and potassium (290.202 ± 2.645 mg/100 g). Additionally, 14 fatty acids were identified in EBB, wherein polyunsaturated and monounsaturated fatty acids represented 51.06% ± 0.09% and 9.86% ± 0.01%, respectively. The EBB extract exhibited almost 400% better antiradical activity than BHT, with IC50 of EBB extract being 10.7 µg/mL compared to 39.5 µg/mL for BHT. EBB exhibited higher inhibitory activity than the reference compound against Staphylococcus aureus and Escherichia coli, followed by Bacillus subtilis. No inhibitory activity was observed against Aspergillus Niger. Additionally, the highest inhibitory activity was recorded against Caco-2 cells, followed by PC3 and HepG-2 cancer cell lines with IC50 values 262, 314 and 386 μg/mL, respectively. These findings establish the potential of EBB as an antioxidant, antimicrobial and antitumor agent, with possible applications as natural food supplements and natural preservatives.

Seasonal Variation of Fatty Acids and Stable Carbon Isotopes in Sponges as Indicators for Nutrition: Biomarkers in Sponges Identified

2014 ◽  
Vol 17 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Marieke Koopmans ◽  
Pieter van Rijswijk ◽  
Henricus T. S. Boschker ◽  
Houtekamer Marco ◽  
Dirk Martens ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Seasonal Variation ◽  
Carbon Isotopes ◽  
Stable Carbon Isotopes ◽  
Stable Carbon

scholarly journals Effects of nitrogen, phosphorus, EDTA and sodium chloride on biomass and lipid accumulation of Chaetomorpha aerea

2020 ◽  
pp. 152-158
Author(s):  
Gour Gopal Satpati ◽  
Ruma Pal
Keyword(s):  
Fatty Acids ◽  
Sodium Chloride ◽  
Total Lipid ◽  
Lipid Accumulation ◽  
Saturated Fatty Acids ◽  
Stress Conditions ◽  
Biodiesel Production ◽  
Cultural Conditions ◽  
Chaetomorpha Aerea ◽  
Nitrogen Phosphorus

The increase of total lipid and fatty acids production was studied under different nutrient stress conditions using the macroalga, Chaetomorpha aerea. The effects of nitrogen, phosphorus, ethylene diamine tetra-acetate and sodium chloride on the growth and lipid accumulation were systematically investigated in laboratory conditions. The biomass was harvested at different stages of cultivation and assessed. The maximum changes of growth and lipid accumulation were observed in the exponential phase at different cultural conditions. The two-fold increase of total lipid was found in the order of 28.27±0.04 % (at 0.1 g/L nitrogen) > 27.30±0.37 % (at 0.5 g/L of phosphorus) > 25.86±0.77 % (at 0.05 g/L of EDTA)> 24.37±0.04 % (at 0.05 g/L NaCl) on 8th day of cultivation. The fatty acids were identified and quantified by gas chromatography mass spectrometry (GC-MS). The alga produces significantly high amount of monounsaturated fatty acid (MUFA) and saturated fatty acids (SFA) than the polyunsaturated fatty acids (PUFA) in different cultural conditions. The elevated levels of C16:1, C18:1 and C20:1 was identified under nitrate, phosphate and salt stress conditions, which are more suitable for biodiesel production.

scholarly journals Analysis of biochemical composition and antioxidant properties of nuts sold in the consumer marke

2020 ◽  
Vol 82 (2) ◽  
pp. 124-130
Author(s):  
L. P. Nilova ◽  
S. M. Malyutenkova
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Phenolic Compounds ◽  
Biochemical Composition ◽  
Unsaturated Fatty Acids ◽  
Antioxidant Properties ◽  
Water Soluble ◽  
Total Phenolic ◽  
Consumer Market ◽  
Triton X

The results of studies of the biochemical composition and antioxidant properties of nuts sold in the consumer market of St. Petersburg were presented in the work. The objects of research were kernels of nuts: sweet almonds, hazelnuts, cashews, walnuts. Total Soxhlet lipids, fatty acid composition, vitamin E, fractional composition of tocopherols and phytosterols, total phenolic compounds and flavonoids, antioxidant activity by FRAP with ferric chloride, o-phenanthroline and Triton X 100 were determined in nuts. Nuts varied in lipid content (42.6–65.4%) with a predominance of unsaturated fatty acids from 80.4 to 92.4 relative%. Oleic acid prevailed in the fatty acids of almonds, hazelnuts and cashews, while linoleic acid prevailed in walnuts. Walnuts contained the highest amount of polyunsaturated fatty acids. The antioxidant properties of nuts were formed by a complex of water and fat-soluble antioxidants. Fat-soluble antioxidants included vitamin E with a predominance of ?-tocopherol in the kernels of sweet almonds and hazelnuts, ?-tocopherol - in walnuts and cashews. Only sweet almond kernels contained all the tocopherol fractions. ?- and ?-tocopherols were absent in hazelnut lipids, while ?-tocopherols were absent in cashews and walnuts. ?-sitosterol, campesterol and stigmasterol with a predominance of ?-sitosterol were identified in the composition of phytosterols in all nut kernels. Water-soluble antioxidants are mainly represented by phenolic compounds, the amount of which varies widely depending on the type of nuts: cashews

scholarly journals Content and composition of lipid classes, fatty acid from \(\textit{Sargassum}\) seaweed collected at Con Dao and Van Phong bay

2021 ◽  
Vol 21 (3) ◽  
pp. 311-318
Author(s):  
Thu Hue Pham ◽  
Van Tuyen Anh Nguyen Nguyen ◽  
Yen Kieu Thi Hoang ◽  
Nguyen Nguyen ◽  
Hai Nam Hoang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Free Fatty Acids ◽  
Total Lipid ◽  
Polar Lipid ◽  
Brown Seaweed ◽  
Monounsaturated Fatty Acids ◽  
Lipid Classes ◽  
Average Content ◽  
Fresh Weight

This study studied the content and composition of the total lipid, lipid classes and fatty acids in 13 brown seaweed Sargassum species collected from Con Dao and Van Phong, Vietnam. The total lipid has a low content and varies among species from 0.10–1.70% of the fresh weight. From 13 species, seven lipid classes including polar lipid (Pol), free fatty acids (FFA), sterol (ST), hydrocarbon and wax (HW), triacylglycerol (TG), diacylglycerol (DG), and monoalkydiacylglycerol (MADG). Using the GC-FID technique, we have identified 29 fatty acids classified into 3 groups of saturated fatty acid, monounsaturated fatty acids, polyunsaturated fatty acids with an average content of 44.93%, 24.57% and 27.44%, respectively. Among those, many value fatty acids have been detected with high content such as C18:3n-3, C20:4n-6, 20:5n-3, and 22:6n-3. The lipid of 13 brown seaweed Sargassum species also fully contains omega-3,6,9 fatty acids with the content of 9.28%, 16.28% and 16.63%, respectively.

Lipids of the fin whale (Balaenoptera physalus) from North Atlantic waters. IV. Fin whale milk

1968 ◽  
Vol 46 (3) ◽  
pp. 197-203 ◽  
Author(s):  
R. G. Ackman ◽  
C. A. Eaton ◽  
S. N. Hooper
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Total Lipid ◽  
Iodine Value ◽  
North Atlantic ◽  
Methyl Esters ◽  
Short Chain Fatty Acids ◽  
Fin Whale ◽  
Hydrolysis Of

Fatty acid compositions were determined for total lipid (17.5% of the milk and > 95% triglycerides), 2-monoglyceride obtained by enzymatic hydrolysis of isolated triglyceride, and isolated phospholipid (~1% of total lipids). The total lipid fatty acids of the milk had a composition similar to fin whale depot fat but were enriched in hexadecanoic acid and polyunsaturated fatty acids at the expense of monoethylenic acids; correspondingly the iodine value of 136 (methyl esters) was higher than the normal range (105–120) of North Atlantic fin whale blubber oils. Over 80% of the fatty acids in the 2-position of the triglycerides were accounted for by relatively short chain fatty acids, especially hexadecanoic (54.6%), tetradecanoic (13.7%), and hexadecenoic (11.2%), so that the ester iodine value was only 48. The milk phospholipids had a fatty acid composition basically similar to that of liver phospholipids (methyl ester iodine value 120) with somewhat more polyunsaturated fatty acids and accordingly an iodine value of 144 for methyl esters.

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