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.

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.

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.

scholarly journals First seasonal investigation of the fatty acid composition in three organs of the Tunisian bivalve Mactra stultorum

2019 ◽  
Vol 70 (1) ◽  
pp. 291 ◽  
Author(s):  
I. Chetoui ◽  
I. Rabeh ◽  
S. Bejaoui ◽  
K. Telahigue ◽  
F. Ghribi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Dry Matter ◽  
Saturated Fatty Acids ◽  
Maximum Level ◽  
Monounsaturated Fatty Acids ◽  
Adductor Muscle ◽  
Adductor Muscles

This study reveals information for the first time about the total lipid (TL) content and fatty acid composition (FA) of Mactra stultorum (M. corallina). Three edible organs (foot, mantle and adductor muscle) were the subjects of this research in order to determine the most favorable periods for their consumption in relation to seasonal variability. The results showed lower lipid content in the adductor muscles in summer (12.73 ± 2.55 mg/g dry matter); while a higher content was observed in winter (28.97 ± 3.50 mg/g dry matter). However, similar lipid contents were observed in the mantle and foot tissues among the seasons. The fatty acid composition of Mactra stultorum adductor muscles, mantle and foot was dominated by saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA). Palmitic acid (16:0) was the major saturated fatty acid (SFA) and reached higher levels during summer in the foot (26%), mantle (21%) and adductor muscles (25%). Among PUFA, eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) showed significant variation among seasons with high levels recorded during winter and spring. Monounsaturated fatty acids (MUFA) did not show any remarkable variation among seasons for the three studied tissues. Seasonal changes in fatty acids were observed for all samples, reaching a maximum level in winter or spring.

Screening of fatty acid composition in Nitzschia sp.

2017 ◽  
Vol 42 (3) ◽  
Author(s):  
Zeliha Demirel ◽  
Esra Imamoglu ◽  
Meltem Conk Dalay
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Lipid Content ◽  
Palmitoleic Acid ◽  
Dry Weight ◽  
Monounsaturated Fatty Acids ◽  
Growth Conditions ◽  
Light Intensities ◽  
Main Target ◽  
Total Fatty Acids

AbstractIntroduction:The main target of this study was to compare the effects of nitrogen limitation and light intensities on cell growth, lipid content and fatty acid profile ofMethods:F/2 medium and N-free F/2 medium were both tested at two different light intensities of 11 and 56 μEmResults:The presence of nitrogen led to more cells grown efficiently. Furthermore, the increase in chlorophyll content went parallel to the increase in dry weight. The most abundant saturated and monounsaturated fatty acids were pentadecanoic acid (C15:0) and palmitoleic acid (C16:1) which constituted 17%–42% and 15%–48% of total fatty acids for all growth conditions, respectively. It was recorded that palmitoleic acid was present at higher concentrations than palmitic acid.Discussion and conclusion:The noteworthy finding was that the lipid content increased with increasing the growth rate of

scholarly journals FATTY ACID COMPOSITION OF THE FRUITS OF SYZYGIUM ZEYLANICUM (L.) DC. VAR. ZEYLANICUM

2017 ◽  
pp. 155-157
Author(s):  
Devi R. C. Bhanu ◽  
K. K. Sabu
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Acid Composition ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Nutritional Composition ◽  
Total Fatty Acids

Objective: Wild indigenous fruits are believed to be extremely nutritious, contributing a great deal to the general health of the tribal and rural population. To validate this claim, systematic studies are required to estimate their nutritional composition. The objective of the study was to analyze the fatty acid composition of Syzygium zeylanicum (L.) DC. var. zeylanicum.Methods: The fatty acid composition of S. zeylanicum var. zeylanicum fruits were analysed by GC-MS/MS.Results: The major fatty acids were cis-oleic acid (43.47±0.62 %) and linoleic acid (31.14±0.35%). Total monounsaturated fatty acids in the sample was 44.21%. Omega-6, omega-7 and omega-9 fatty acids were detected. The polyunsaturated fatty acids in thefruits were linoleic acid (31.14±0.35 %) and arachidonic acid (0.15±0.22 %), whereas 24.51 % of the total fatty acids were saturated. The ratio of unsaturated to saturated fatty acids was approximately 3:1. The order of abundance of fatty acids, in some of the healthiest oils, viz. olive, canola, peanut oils is, Oleic acid>Linoleic acid>Palmitic acid>Stearic acid and the same order was observed in the present study.Conclusion: Fruits of S. zeylanicum var. zeylanicum too shows a healthy balance between unsaturated and saturated fats. 

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 Slaughter yield and dietary value of wild and cultured vendace (Coregonus albula)

2020 ◽  
Vol 28 (2) ◽  
pp. 91-98
Author(s):  
Zdzisław Zakęś ◽  
Renata Pietrzak-Fiećko ◽  
Mirosław Szczepkowski ◽  
Monika Modzelewska-Kapituła
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Monounsaturated Fatty Acids ◽  
Fatty Acid Profiles ◽  
Natural Conditions ◽  
Coregonus Albula ◽  
Cultured Fish ◽  
Total Fatty Acids ◽  
Dietary Value ◽  
Formulated Feed

AbstractThis study focused on comparing slaughter yield, proximate composition, and fatty acid profiles of meat from wild vendace, Coregonus albula L. caught in natural conditions (lakes; group W) and from cultured vendace reared on formulated feed in recirculating systems (group C). The slaughter yield of gutted vendace (group C) was approximately 2% higher that the value determined in group W (P ≤ 0.05). Carcasses of cultured fish contained 2.5 times more fat in comparison to fish from group W (11.12 vs 4.86%), which was compensated for by water content. No differences in protein content were noted among groups (P > 0.05). The relative combined share of monounsaturated fatty acids (MUFA) in carcasses of fish from group C were significantly higher (49.98 vs 31.53% of total fatty acids (tFA)); however, the share of polyunsaturated fatty acids (PUFA), including n-3 PUFA, was lower at 18.55 vs 24.71% tFA and 8.36 vs 14.89% tFA (P ≤ 0.05), respectively. As a result of these lipid content values, the levels of the eicosapentaenoic (EPA; 20:5n-3) and docosahexaenoic (DHA; 22:6n-3) acids and n-3 PUFA and PUFA, expressed in mg 100 g−1 carcass, in cultured vendace carcasses were significantly higher than those in the meat of wild vendace.

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