scholarly journals Changes in the Total Lipid, Neutral Lipid, Phospholipid and Fatty Acid Composition of Phospholipid Fractions during Pastirma Processing, a Dry-Cured Meat Product

2017 ◽  
Vol 37 (1) ◽  
pp. 18-28 ◽  
Author(s):  
Muhammet Irfan Aksu ◽  
Mehmet Dogan ◽  
Ahmet Necdet Sirkecioglu
Meat Science ◽  
2012 ◽  
Vol 91 (3) ◽  
pp. 369-373 ◽  
Author(s):  
T. Pérez-Palacios ◽  
J. Ruiz ◽  
I.M.P.L.V.O. Ferreira ◽  
C. Petisca ◽  
T. Antequera

2020 ◽  
Vol 3 ◽  
pp. 18-25
Author(s):  
Nataliia Bozhko ◽  
Vasyl Pasichnyi ◽  
Andriy Marynin ◽  
Vasyl Tischenko ◽  
Igor Strashynskyi ◽  
...  

The work is devoted to studying the fatty-acid composition and biological efficiency of a developed meat-containing semi-smoked sausage, based on duck meat with the balanced fatty-acid composition, investigating the effectiveness of using a rosemary extract in a technology of sausages with a high content of unsaturated fatty acids. It is confirmed, that the fatty-acid composition of meat-containing semi-smoked sausage of Peking duck is characterized by the optimal ratio of PUFA and SFA that is 0.33, at standard 0.2–0.4. The ratio between FA families w-3/ w-6 in the developed products is from 1:11 at recommended physiological norms of the ideal composition of lipids in a meat product as 1:10. Introduction of the rosemary extract in amount 0.02–0.06 % of the forcemeat mass decelerates hydrolytic oxidation of forcemeat lipids, favors deceleration of peroxide oxidation of lipids in a meat-containing semi-smoked sausage, decreasing the amount of peroxides in practically five times. The positive influence of the introduced antioxidant on accumulation of secondary oxidation products is noticed. Their summary amount was the least at the end of the storage term of ready products with the rosemary extract as 0.38–0.80 mg of МА/kg of the product that is 2.54–3.94 times lower than in a control sample. The most stabilizing effect on the process of lipids oxidation is obtained at introducing the rosemary extract in amount 0.06 % that allows to decrease the speed of oxidation processes in the product almost twice


2002 ◽  
Vol 50 (21) ◽  
pp. 5981-5986 ◽  
Author(s):  
Sueli Regina Baggio ◽  
Eduardo Vicente ◽  
Neura Bragagnolo

1970 ◽  
Vol 48 (3) ◽  
pp. 264-268 ◽  
Author(s):  
E. Y. Lipsitz ◽  
J. E. McFarlane ◽  
G. O. Henneberry

The fatty acid composition of larvae of Acheta domesticus (L.) at two distinct ages (12 days and 30 days) was determined. No appreciable age differences were observed in the composition of fatty acids from lipid extracts; palmitic, stearic, oleic, and linoleic acids were found to be the major fatty acids, together accounting for about 90% of the total. However, distinct age differences were found in the fatty acid composition of neutral lipid components. The most marked developmental change was a reduction from 34.5% to 10.9% in the myristic acid content of the monoglyceride. High concentrations of short-chain fatty acids were found in at least three neutral lipid components, and considerable alterations in the concentration of these fatty acids occurred during development.


1990 ◽  
Vol 122 (6) ◽  
pp. 1101-1109 ◽  
Author(s):  
J. Marshall Clark ◽  
J.R. Marion ◽  
L.J. Scarano ◽  
T.L. Potter ◽  
P.F. Gosselin ◽  
...  

AbstractQualitative and quantitative changes in the neutral lipid content of hemolymph of gypsy moths, Lymantria dispar L., were assayed in larval, pupal, and adult stages. The major neutral lipid constituents of the hemolymph were 1,2-diacylglycerols and ranged in nominal concentration from 1.6–3.4 (larval), 3.1–4.9(pupal),toamaximumof 19.3 μg lipid per microlitre hemolymph in the adult male. When detected, triacylglycerols and monoacylglycerols never exceed diacylglycerol concentrations. The fatty acid composition of 1,2-diacylglycerols from adult male moths (0–12 h after emergence) was determined as fatty acid methyl esters using gas chromatography/mass spectrometry analysis. Nine fatty acid structures have been assigned. Of these, five are saturated, unbranched, aliphatic fatty acids (C14:0 – C18:0) which comprise 80.5% of the total fatty acid abundance. The remaining four fatty acids consist of two saturated, methyl-branched, aliphatic compounds, a mono-unsaturated aliphatic acid, and a tri-unsaturated, tricyclic, diterpenoid acid.


2003 ◽  
Vol 90 (3) ◽  
pp. 709-716 ◽  
Author(s):  
Nigel D. Scollan ◽  
Mike Enser ◽  
Suresh K. Gulati ◽  
Ian Richardson ◽  
Jeff D. Wood

Enhancing the polyunsaturated fatty acid (PUFA) and decreasing the saturated fatty acid content of beef is an important target in terms of improving the nutritional value of this food for the consumer. The present study examined the effects of feeding a ruminally protected lipid supplement (PLS) rich in PUFA on the fatty acid composition of longissimus thoracis muscle and associated subcutaneous adipose tissue. Animals were fed ad libitum on grass silage plus one of three concentrate treatments in which the lipid source was either Megalac (rich in palmitic acid; 16:0) or PLS (soyabean, linseed and sunflower-seed oils resulting in an 18:2n−6:18:3n−3 value of 2·4:1). Treatment 1 contained 100g Megalac/kg (Mega, control); treatment 2 (PLS1) contained 54g Megalac/kg with 500g PLS/d fed separately; treatment 3 (PLS2) contained no Megalac and 1000g PLS/d fed separately. The PLS was considered as part of the overall concentrate allocation per d in maintaining an overall forage:concentrate value of 60:40 on a DM basis. Total dietary fat was formulated to be 0·07 of DM of which 0·04 was the test oil. Total intramuscular fatty acids (mg/100g muscle) were decreased by 0·31 when feeding PLS2 compared with Mega (P<0·05). In neutral lipid, the PLS increased the proportion of 18:2n−6 and 18:3n−3 by 2·7 and 4·1 on diets PLS1 and PLS2 v. Mega, respectively. Similar responses were noted for these fatty acids in phospholipid. The amounts or proportions of 20:4n−6, 20:5n−3 or 22:6n−3 were not influenced by diet whereas the amounts and proportions of 22:4n−6 and 22:5n−3 in phospholipid were decreased with inclusion of the PLS. The amounts of the saturated fatty acids, 14:0, 16:0 and 18:0, in neutral lipid were on average 0·37 lower on treatment PLS2 compared with Mega. Feeding the PLS also decreased the proportion of 16:0 in neutral lipid. The amount of 18:1n-9 (P=0·1) and the amount and proportion of 18:1 trans (P<0·01) were lower on treatments PLS1 and PLS2 in neutral lipid and phospholipid. Conjugated linoleic acid (cis-9, trans-11) was not influenced by diet in the major storage fraction for this fatty acid, neutral lipid. The PUFA:saturated fatty acids value was increased markedly (×2·5) with inclusion of the PLS (P<0·001) while the σn−6:n−3 value increased slightly (×1·2; P=0·015). The results suggest that the protected lipid used, which was rich in PUFA, had a high degree of protection from the hydrogenating action of rumen micro-organisms. The PLS resulted in meat with a lower content of total fat, decreased saturated fatty acids and much higher 18:2n−6 and 18:3n−3. The net result was a large shift in polyunsaturated: saturated fatty acids, 0·28 v. 0·08, on feeding PLS2 compared with Mega, respectively.


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