scholarly journals Effect of fat extraction methods on the fatty acids composition of bovine milk using gas chromatography

2021 ◽  
Author(s):  
Asmaa H. M. Moneeb ◽  
Ahmed R. A. Hammam ◽  
Abdelfatah K. A. Ahmed ◽  
Mahmoud E. Ahmed ◽  
Khalid A. Alsaleem
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Bovine Milk ◽  
Extraction Methods ◽  
Fatty Acids Composition ◽  
Fat Extraction

Characterization of fatty acids composition in vegetable oils by gas chromatography and chemometrics

1998 ◽  
Vol 358 (2) ◽  
pp. 163-175 ◽  
Author(s):  
Dong-Sun Lee ◽  
Bong-Soo Noh ◽  
Sun-Young Bae ◽  
Kun Kim
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Vegetable Oils ◽  
Fatty Acids Composition

scholarly journals Fatty Acids Composition of Lard by Gas-Chromatography

1964 ◽  
Vol 11 (12) ◽  
pp. 530-533
Author(s):  
TOSHIMI AKIYA ◽  
MEGUMI YAMAZAKI
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acids Composition

scholarly journals Performance of GC-MS analysis for differentiation of various types of flour by creating dendrogram of liposoluble extract

2012 ◽  
Vol 18 (4-1) ◽  
pp. 555-561 ◽  
Author(s):  
Djura Vujic ◽  
Marijana Acanski ◽  
Marija Bodroza-Solarov ◽  
Nikola Hristov ◽  
Milica Krunic
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Cluster Analysis ◽  
Gas Chromatography ◽  
Methyl Oleate ◽  
Methyl Palmitate ◽  
Methyl Esters ◽  
Fatty Acids Composition ◽  
Different Types ◽  
Small Grains

Gas chromatography with mass spectrometry was used for performing a qualitative analysis of liposoluble flour extract made of different types of small grains (bread wheat, barley and triticale). The results show that the dominant methyl-esters of fatty acids composition is same for all samples, but the percentage of their representation in various types of small grains is different. Transesterification reagent was TMSH (Trimethylsulfonium hydroxide, 0.2M in methanol). With transesterification reaction fatty acids from acilglycerol esterifyed to methyl-esters. In all extract analyzed methyl linoleate predominated, followed by methyl palmitate, methyl oleate and methyl stearate in decreasing order. The following tests cluster analysis was used for the comparison of the liposoluble flour extract different types of small grains.

scholarly journals Effects of candidate gene polymorphisms on the detailed fatty acids profile determined by gas chromatography in bovine milk

2016 ◽  
Vol 99 (6) ◽  
pp. 4558-4573 ◽  
Author(s):  
S. Pegolo ◽  
A. Cecchinato ◽  
M. Mele ◽  
G. Conte ◽  
S. Schiavon ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Candidate Gene ◽  
Gene Polymorphisms ◽  
Bovine Milk ◽  
Fatty Acids Profile

scholarly journals Composition of Fatty Acid and Identification of Lauric Acid Position in Coconut and Palm Kernel Oils

2018 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Jansen Silalahi ◽  
Lida Karo Karo ◽  
Siti Morin Sinaga ◽  
Yosy Cinthya Eriwaty Silalahi
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acid ◽  
Lauric Acid ◽  
Nutritional Value ◽  
Palm Kernel ◽  
Coconut Oil ◽  
Fatty Acids Composition ◽  
Virgin Coconut Oil ◽  
Kernel Oil

The nutritional value and biochemical properties of oil are measured by the fatty acids composition  in oil and the position of fatty acids (sn-1,2,3) in the triacylglycerol (TAG) molecule. The purpose of this study was to measure the nutritional value based on the fatty acids composition of  virgin coconut oil (VCO) and palm kernel oil (PKO), and the position of lauric acid in sn-2. The VCO used was VCO obtained from one of the Pharmacies store in Medan, and PKO from the Oil Processing Plant. The total fatty acid composition was measured by Gas Chromatography. The nutritional value of fat was evaluated by the percentage deviation from 33.33% (ratio: 1: 1: 1) of each group of fatty acid (saturated fatty acids; SFA: monounsaturated fatty acids; MUFA:polyunsaturated fatty acid (PUFA). The distribution of lauric acid in TAG was conducted through hydrolysis by using specific lipase enzymes active at sn-1,3 positions, so that free fatty acids and 2-monoacylglycerol were produced from one TAG molecule. Then free fatty acids were determined by Gas Chromatography. The distribution of lauric acid at sn-2 position was the difference between total lauric acid on TAG before hydrolysis and free lauric acid from sn-1.3 position after hydrolysis. The results showed that PKO nutritional value was better because of the smaller deviation (95.29%) compared with nutritional value of VCO with a greater deviation (118.55%). Lauric acid in sn-2 from VCO and PKO showed that the distribution of lauric acid in sn-2 position was not different,48.33and 48.59%. Keywords: virgin coconut oil, palm kernel oil, composition of fatty acids, sn-2 position, lauric acids

scholarly journals Lipids from Insects in Cosmetics and for Personal Care Products

Insects ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 41
Author(s):  
Antonio Franco ◽  
Rosanna Salvia ◽  
Carmen Scieuzo ◽  
Eric Schmitt ◽  
Antonella Russo ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Food Source ◽  
Economic Value ◽  
Food Additives ◽  
Personal Care Products ◽  
Mass Rearing ◽  
Extraction Methods ◽  
Fatty Acids Composition ◽  
Personal Care ◽  
Starting Point

Insects, the most varied group of known organisms on Earth, are arousing great interest also for the possibility to use them as a feed and food source. The mass rearing of some species, defined as “bioconverters”, is spreading worldwide, thanks to their sustainability. At the end of the bioconversion process, breeders obtain eco-friendly biomolecules of high biological and economic value, including proteins and lipids, from larvae of bioconverter insects, in particular Hermetia illucens. Besides the most classical use of insect lipids as food additives, they are also used in the formulation of several products for personal care. The composition of insect lipids depends on the substrate on which the insects are reared but also on the insect species, so the cosmetic producers should consider these features to choose their insect starting point. The most abundant fatty acids detected in H. illucens are lauric, myristic, palmitic, and oleic acids, regardless of feed substrate; its fatty acids composition is favorable for soap composition, while their derivatives are used for detergent and shampoo. Here, we offer an overview of insect lipids, their extraction methods, and their application in cosmetics and personal care products.

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