Alpha-Linolenic Acid Content of Commonly Available Nuts in Hangzhou

2006 ◽  
Vol 76 (1) ◽  
pp. 18-21 ◽  
Author(s):  
Duo Li ◽  
Ting Yao ◽  
Sirithon Siriamornpun
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Cannabis Sativa ◽  
Total Lipid Content ◽  
Alpha Linolenic Acid ◽  
Pufa Intake ◽  
Pine Nut ◽  
Total Fatty Acids ◽  
Total Pufa ◽  
Fatty Acid Compositions

The total lipid content of eight species of nuts available in Hangzhou ranged from 49.5 g/100 g weight in Cannabis sativa to 75.4 g/100 g in walnut. The predominant content of lipid is triacylglycerol, ranging from 91.1% in Cannabis sativa to 98.4% in macadamia. There were two polyunsaturated fatty acids (PUFA) in all nuts analyzed; 18:2n-6 and 18:3n-3. The content of 18:3n-3 ranging from 0.2% in almond to 15.2% in Cannabis sativa, 18:2n-6 ranged from 2.5% in macadamia to 61.6% in pine nut. The proportion of total PUFA in analyzed eight nut species ranging from 2.8% in macadamia to 71.7% in walnut (p < 0.001). Monounsaturated fatty acid composition ranged from 18.0% in Cannabis sativa to 82.6% in macadamia (p < 0.001). The proportion of saturated fatty acid ranged from 7.4% in filbert to 14.7% of total fatty acids in macadamia (p < 0.001). No C20 fatty acids were detected in any of the samples in the present study. The lipids content and fatty acid compositions in analyzed samples were varied between nut species. Cannabis sativa and walnut contained relatively high 18:3n-3, consumption of several these nuts each day can contribute to n-3 PUFA intake, especially for the vegetarian population.

High incorporation of esential fatty acids by the Rotifer Brachionus plicatilis fed on the Prymnesiophyte Alga Pavlova lutheri

1989 ◽  
Vol 40 (6) ◽  
pp. 645 ◽  
Author(s):  
PD Nichols ◽  
DG Holdsworth ◽  
JK Volkman ◽  
M Daintith ◽  
S Allanson
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Brachionus Plicatilis ◽  
Essential Fatty Acids ◽  
Total Lipid Content ◽  
Pavlova Lutheri ◽  
Rotifer Brachionus Plicatilis ◽  
Total Fatty Acids ◽  
High Incorporation ◽  
Fatty Acid Compositions

The lipid and fatty acid compositions of rotifers (Brachionus plicatilis) fed on yeast or on the unicellular prymnesiophyte Pavlova lutheri, an alga commonly used in Australian hatcheries, were compared by TLC-FID, GC and GC-MS. Significantly higher relative proportions of energy-rich triacylglycerol were present in the Pavlova-fed rotifers than in the yeast-fed animals, and total lipid content reached a maximum between 12 and 24 h. High incorporation of the essential fatty acids eicosapentaenoic acid (EPA; 20: 5ω3) and docosahexaenoic acid (DHA; 22:6ω3) occurred in the Pavlova-fed rotifers. EPA and DHA content was 11.6% of total fatty acids after 3 h of feeding and reached 20 and 23% after 24 and 48 h respectively. The proportion of essential fatty acids in rotifers fed Pavlova compares very favourably with data obtained by overseas workers using a variety of microalgae and dietary supplements. On the basis of fatty acid composition alone, these results confirm the suitability of P. lutheri as a feedstock for Australian mariculture operations.

scholarly journals Omega-3 fatty acid composition of chicken plasma fed diets varying in LA to ALA ratio

2021 ◽  
Vol 902 (1) ◽  
pp. 012012
Author(s):  
L R Kartikasari ◽  
R J Hughes ◽  
M S Geier ◽  
R A Gibson
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Total N ◽  
Total Fatty Acids ◽  
The Impact ◽  
Total Pufa

Abstract The impact of dietary supplementation of a vegetable source of n-3 fat in the form of alpha-linolenic acid (ALA, 18:3n-3) on the accumulation of n-3 fatty acids in plasma chicken was investigated. Sixty unsexed one-day-old broiler chickens were randomly allocated to six diets (n=10 birds/diet) for 4 weeks. The birds were fed a proprietary starter commercial feed for the first two days after hatch. Six dietary treatments ranging in fat content from 5 to 10% were prepared by supplementing the basal diet with vegetable oils. The ALA levels varied from 1 to 8% energy (%en). The n-6 fatty acid linoleic acid (LA, 18:2n-6) level was limited to less than 5%en. Results showed that the metabolites of dietary ALA, EPA, DPA, and DHA in plasma tissues increased in a curvilinear manner as dietary ALA increased, achieving 3- to 13-fold compared to the levels in the control birds (P<0.001). The total PUFA content of plasma samples increased (P<0.001) due to increasing the diets’ ALA content, achieving 41.20% of the total fatty acids when the LA to ALA ratio of diets was at the lowest level. The increase in total PUFA was mainly due to an increase in total n-3 PUFA.

scholarly journals Evaluation of Chemical Variability of Cured Vanilla Beans (Vanilla tahitensis and Vanilla planifolia)

2009 ◽  
Vol 4 (10) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Christel Brunschwig ◽  
François Xavier Collard ◽  
Jean-Pierre Bianchini ◽  
Phila Raharivelomanana
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Dry Matter ◽  
Monounsaturated Fatty Acids ◽  
Vanilla Planifolia ◽  
Chemical Variability ◽  
Total Fatty Acids ◽  
Curing Method ◽  
Fatty Acid Compositions

In order to establish a chemical fingerprint of vanilla diversity, thirty samples of V. planifolia J. W. Moore and V. tahitensis G. Jackson cured beans from seven producing countries were examined for their aroma and fatty acid contents. Both fatty acid and aroma compositions were found to vary between vanilla species and origins. Vanillin was found in higher amounts in V. planifolia (1.7-3.6% of dry matter) than in V. tahitensis (1.0-2.0%), and anisyl compounds were found in lower amounts in V. planifolia (0.05%) than in V. tahitensis (1.4%-2.1%). Ten common and long chain monounsaturated fatty acids (LCFA) were identified and were found to be characteristic of the vanilla origin. LCFA derived from secondary metabolites have discriminating compositions as they reach 5.9% and 15.8% of total fatty acids, respectively in V. tahitensis and V. planifolia. This study highlights the role of the curing method as vanilla cured beans of two different species cultivated in the same country were found to have quite similar fatty acid compositions.

The alpha-linolenic Acid Content of Green Vegetables Commonly Available in Australia

2001 ◽  
Vol 71 (4) ◽  
pp. 223-228 ◽  
Author(s):  
Christine Pereira ◽  
Duo Li ◽  
Andrew J. Sinclair
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linolenic Acid ◽  
Acid Composition ◽  
Acid Content ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Brussels Sprouts ◽  
Total Fatty Acids

Green vegetable consumption has long been considered to have health benefits mainly due to the vitamins, minerals and phytonutrients (such as vitamin C, folate, antioxidants etc) contained in a vegetable-rich diet. Additionally, green vegetables are known to contain a relatively high proportion of omega-3 polyunsaturated fatty acids (PUFAs), primarily in the form of alpha-linolenic acid (18:3n-3). However, there are no data available on the fatty acid composition and concentration of green vegetables commonly consumed in Australia. The present study determined the fatty acid content of 11 green vegetables that are commonly available in Australia. The total fatty acid concentrations of the vegetables under study ranged from 44 mg/100 g wet weight in Chinese cabbage to 372 mg/100 g in watercress. There were three PUFAs in all vegetables analyzed; these were 16:3n-3, 18:2n-6, and 18:3n-3 fatty acids. Sample vegetables contained significant quantities of 16:3n-3 and 18:3n-3, ranging from 23 to 225 mg/100g. Watercress and mint contained the highest amounts of 16:3n-3 and 18:3n-3, and parsley had the highest amount of 18:2n-6 in both percentage composition and concentration. Mint had the highest concentration of 18:3n-3 with a value of 195 mg/100 g, while watercress contained the highest concentration of 16:3n-3 at 45 mg/100 g. All 11 green vegetables contained a high proportion of PUFAs, ranging from 59 to 72% of total fatty acids. The omega-3 PUFA composition ranged from 40 to 62% of total fatty acids. Monounsaturated fatty acid composition was less than 6% of total fatty acids. The proportion of saturated fatty acids ranged from 21% in watercress and mint to 32% of total fatty acids in Brussels sprouts. No eicosapentaenoic and docosahexaenoic acids were detected in any of the samples. Consumption of green vegetables could contribute to 18:3n-3 PUFA intake, especially for vegetarian populations.

scholarly journals Long-chain polyene status of preterm infants with regard to the fatty acid composition of their diet: Comparison between absolute and relative fatty acid levels in plasma and erythrocyte phospholipids

1995 ◽  
Vol 73 (3) ◽  
pp. 405-422 ◽  
Author(s):  
Magritha M. H. P. Foreman-Van Drongelen ◽  
Adriana C. V. Houwelingen ◽  
Arnold D. M. Kester ◽  
André E. P. De Jong ◽  
Carlos E. Blanco ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Venous Blood ◽  
Group Differences ◽  
Lower Fatty Acid ◽  
Total Fatty Acids ◽  
The Absolute ◽  
Erythrocyte Phospholipids ◽  
Long Chain ◽  
Fatty Acid Compositions

The long-chain polyene (LCP) status of thirty-nine premature infants (birth weight < 1800 g) was evaluated. Twenty-seven infants were fed on an artificial formula, twelve received their own mother's breast milk. Fatty acid compositions of both plasma and erythrocyte (RBC) phospholipids (PL) were determined in umbilical venous blood and in weekly postnatal blood samples until the 28th day of life. Individual fatty acid levels were expressed as absolute quantities (mg fatty acid/I plasma or RBC suspension) and as relative (mg/100 mg total fatty acids) values. The changes with time in the absolute values for 22:6n-3 and 20:4n-6 in plasma were strikingly different from those of the relative values for these fatty acids. In plasma PL the inter-group differences in the absolute postnatal values for 22:6n-3 (P < 0·0005) and 20:4n-6 (P < 0·05) and the relative values for 22:6n-3 (P < 0·02) were significant, with lower fatty acid values in the formula-fed infants. In RBC PL, no significant inter-group differences in the postnatal 22: 6n-3 and 20: 4n-6 values were found. Based on the assumption that it is desirable for formula-fed infants to achieve postnatal plasma LCP values at least comparable with those found in infants fed on human milk, the findings of the present study indicate that both n-3 and n-6 LCP should be added to preterm infant formulas. Moreover, the additional importance of absolute fatty acid levels was demonstrated, although analytical procedures need to be standardized to enable effective comparison of results from different research groups.

Fatty acids of Aceraceae seed oils

1968 ◽  
Vol 46 (9) ◽  
pp. 999-1002 ◽  
Author(s):  
C. Y. Hopkins ◽  
A. W. Jevans ◽  
M. J. Chisholm
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Acer Rubrum ◽  
The Other ◽  
Seed Oils ◽  
Acer Negundo ◽  
The Family ◽  
Total Fatty Acids ◽  
Fatty Acid Compositions

Seed oils of 18 species of Aceraceae (maple family) were examined and their fatty acid compositions were determined. Those of all but one species had substantial amounts of C20, C22, and C24cis-monoenoic acids. Acer rubrum, typical of the group, had 7% eicosenoic, 13% docosenoic, and 4% tetracosenoic acid in the total fatty acids of its oil. The chief isomers, identified in the oil of A. saccharum, were cis-11-eicosenoic, cis-13-docosenoic, and cis-15-tetracosenoic acids. The oils of Dipteronia sinensis and Acer negundo were much like the other Acer oils in composition, but that of A. saccharinum was composed almost entirely of the ordinary C16 and C18 fatty acids. The results are discussed in relation to the taxonomy of the family.

scholarly journals Fatty Acids Composition of Two Holothuroidea Species – Cucumaria japonica and C. okhotensis

2007 ◽  
Vol 2 (8) ◽  
pp. 1934578X0700200
Author(s):  
Viatcheslav Rybin ◽  
Konstantin Pavel ◽  
Eugene Boltenkov ◽  
Anastasiya Karlina ◽  
Galina Timchishina ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Eicosapentaenoic Acid ◽  
Body Wall ◽  
Biologically Active ◽  
Fatty Acids Composition ◽  
Total Fatty Acids ◽  
Species Specific ◽  
Cucumaria Japonica ◽  
Fatty Acid Compositions

The fatty acid compositions of the lipids of two holothurian species ( Cucumaria japonica and C. okhotensis) were investigated. High contents of 12-methyltetradecanoic acid and eicosapentaenoic acid (up to 17.7 % and 28.4% of total fatty acids, respectively) in the lipids of both species were revealed. Species specific differences in the content of 23:1 n-9 fatty acid in the lipids from viscera and body wall were found. In C. japonica, the viscera to body wall ratio was 0.07, while in C. okhotensis this ratio was 0.28. The fatty acid compositions of the lipids from both investigated holothurian species permit their use for the manufacturing of foodstuff, as well as for biologically active additives.

scholarly journals Comparison of lipid classes and fatty acid compositions of farmed and wild pacific oysters, Crassostrea gigas, in Nha Trang, Vietnam

2020 ◽  
Vol 20 (4) ◽  
pp. 463-467
Author(s):  
Trinh Thi Thu Huong
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Crassostrea Gigas ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Lipid Classes ◽  
Pacific Oysters ◽  
Total Fatty Acids ◽  
First Time ◽  
Fatty Acid Compositions

Lipid classes and fatty acid compositions of the farmed (F-C. gigas) and wild (W-C. gigas) pacific oysters, Crassostrea gigas, in Nha Trang, Vietnam were investigated for the first time. The results indicated that the lipid classes and fatty acid components of these oysters were insignificantly different. The total lipid of both studied oysters included six lipid classes, namely phospholipid (PL), sterol (ST), free fatty acid (FFA), triacylglycerol (TG), monoalkyldiacylglycerol (MADG), and hydrocarbon-wax (HW) in which TG and PL were dominated with the values of 48.4%, 41.8% for TG and 19.0%, 20.3% for PL in F-C. gigas and W-C. gigas, respectively. The fatty acids (FAs) content of F-C. gigas and W-C. gigas was similar. The saturated fatty acids (SFAs) content was 48.2% in total fatty acids (TFAs) of the F-C. gigas and 44.7% in TFAs of W-C. gigas, in which 16:0 was dominated in SFAs of both oysters with the value of 24.2% in F-C. gigas and 22.0% in W-C. gigas. The contents of monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs) were 18.3%, 20.5% for MUFAs and 31.7%, 34.7% for PUFAs respectively in F-C. gigas and W-C. gigas. These MUFAs compositions contained 16:1n-7, 16:1n-5, 18:1n-9, 18:1n-7, 20:1n-11, 20:1n-9 and 20:1n-7, among them fatty acids 16:1n-7 (7.2% in F-C. gigas, 6.3% in W-C. gigas) and 18:1n-7 (6.6% in F-C. gigas, 7.4% in W-C. gigas) were the main MUFAs. PUFAs in these two oysters consisted of long-chain n-3 and n-6 fatty acids, in which 20:5n-3 (EPA) and 22:6n-3 (DHA) were dominated with the values of 12.7%, 13.9% for EPA in F-C. gigas and 6.5%, 6.0% for DHA in W-C. gigas.

Marine Phytoplankter Fatty Acids

1968 ◽  
Vol 25 (8) ◽  
pp. 1603-1620 ◽  
Author(s):  
R. G. Ackman ◽  
C. S. Tocher ◽  
J. McLachlan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Chain Polyunsaturated Fatty Acid ◽  
Gas Liquid Chromatography ◽  
Specific Fatty Acid ◽  
Unicellular Algae ◽  
Total Fatty Acids ◽  
Filter Feeders ◽  
Iodine Values ◽  
Fatty Acid Compositions

Twelve species of marine unicellular algae have been cultured under comparable conditions and the total fatty acids determined by gas–liquid chromatography. Some specific fatty acid relationships paralleling taxonomic groupings were detected but generally individual fatty acids within various algal classes showed large relative variations. The four Bacillariophyceae examined were notable for fatty acid compositions giving iodine values <150, whereas in eight other classes the iodine values were all approximately 200. It is suggested that 5,8,11,14,17-eicosapentaenoic acid, found to be a common algal longer-chain polyunsaturated fatty acid, is characteristically deposited in the lipids of filter-feeders ingesting unicellular algae.

Chlorella vulgaris as a Source of Essential Fatty Acids and Micronutrients: A Brief Commentary

2017 ◽  
Vol 10 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Hércules Rezende Freitas
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Culture Medium ◽  
Essential Fatty Acids ◽  
Total Lipid Content ◽  
Dietary Quality ◽  
Negative Effects ◽  
Algae Biomass ◽  
Dietary Consumption ◽  
Acid Consumption

Polyunsaturated fatty acids (PUFAs) comprise about 35-40% of the total lipid content from green algaeChlorella, reaching up to 24% linoleic acid and 27% α-linolenic acid inC. vulgaris. Also, microalgae nutrient composition may be modulated by changes in the culture medium, increasing fatty acid and microelement concentrations in the algae biomass. PUFAs, such as α-linolenic (n-3) and linoleic (n-6) acids, as well as its derivatives, are considered essential for dietary consumption, and their ability to regulate body chemistry has been recently explored in depth. A balanced fatty acid consumption is shown to counteract the negative effects of western diets, such as chronic inflammation and glucose intolerance. In this brief commentary, technological and practical uses ofC. vulgarisare explored as means to improve dietary quality and, ultimately, human health.

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