scholarly journals Putting the Spring back into the Hare (Pedetes capensis): Meat Chemical Composition of an Underutilized Protein Source

Foods ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1096
Author(s):  
Sara Wilhelmina Erasmus ◽  
Louwrens Christiaan Hoffman
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Carcass Characteristics ◽  
Eicosatrienoic Acid ◽  
Protein Source ◽  
Spring Back ◽  
Meat Content ◽  
Alternative Protein

Alternative protein sources are gaining increasing global attention as a solution to address future protein demands. Determining the chemical composition of meat alternatives is vital to confirm that it is nutritious, but also to increase product value and promote its utilization. The carcass characteristics and chemical composition of springhare, an underutilized protein source, was found to be comparable to that of commercially reared rabbits. Hence, its introduction into the commercial supply chain would likely not offset consumers accustomed to purchasing rabbit/hare meat. Springhare meat had a high protein content (~22.5 g/100 g meat) and low lipid (<1.3 g/100 g meat) content. The meat’s fatty acids mainly comprised C18:2n6c (γ-linoleic acid; 24%), C18:0 (stearic acid; 20%), C16:0 (palmitic acid; 19%), C20:4n6 (arachidonic acid; 15%) and C18:1n9c (oleic acid; 13%). Although sex did not significantly influence the carcass characteristics and meat composition, season did have an effect (p < 0.05) on the fatty acid profile. The meat harvested in summer had higher (p < 0.05) concentrations of favorable unsaturated fatty acids, C18:2n6c, C18:3n6, C18:3n3 (α-linolenic acid), C20:2n6 (eicosadienoic acid), C20:3n3 (eicosatrienoic acid), compared to the meat obtained in winter, which contained more (p < 0.05) saturated fatty acids. The results verify that springhare can be utilized as a viable alternative protein source.

scholarly journals The Study of Variation in Fatty Acids Composition for Animal Fats

1970 ◽  
Vol 66 (2) ◽  
Author(s):  
Flavia POP ◽  
Cornel LASLO
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Polyunsaturated Fatty Acids ◽  
Milk Fat ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Cow Milk ◽  
Animal Fats ◽  
Poultry Fat

In this article the chemical composition of 2 types of animal fats (cow milk fat and poultry fat) following the variation of saturated and unsaturated fatty acids proportion during freezing storage was studied. Determination of chemical composition of animal fats is important in establishing organoleptic and physico-chemical parameters, the variation of them in time, nature and proportion of fatty acids conferring specific characteristics to them. For milk fat was determined the following chemical composition: saturated fatty acids 68.35%, monounsaturated fatty acids 29.25%, polyunsaturated fatty acids 2.4%. After 4 months of storage under freezing there was a change in fatty acids proportion, saturated fatty acid content increased to 70.41%, monounsaturated fatty acids content decreased to 28.23%, and polyunsaturated fatty acids content decreased to 1.35% due to oxidation process when decreased the degree of unsaturation due to unsaturated fatty acids oxidation. In the case of poultry fat there was also an increase of saturated fatty acids (30.71%) and a decrease for monounsaturated (43.47%) and polyunsaturated (24.81%) fatty acids content.

Chemical Composition of Backfat in 58 kg Pig Carcasses Covering a Wide Range of Fat Thickness

1988 ◽  
Vol 1988 ◽  
pp. 69-69
Author(s):  
M. Enser ◽  
J.D. Wood ◽  
C.B. Moncrieff ◽  
A.J. Kempster
Keyword(s):  
Cardiovascular Disease ◽  
Fatty Acids ◽  
Chemical Composition ◽  
Nutritional Value ◽  
Unsaturated Fatty Acids ◽  
Energy Content ◽  
Saturated Fatty Acids ◽  
Wide Range ◽  
Fat Thickness ◽  
Pig Carcasses

The chemical composition of pig backfat determines its physical properties of firmness and cohesiveness as well as its nutritional value. The firmness of the tissue depends upon its content of saturated fatty acids, particularly stearic, which make it harder; and unsaturated fatty acids, particularly linoleic, which make it softer. Cohesiveness depends upon the connective tissue and fat content and the compositon of these; soft fat and low cohesiveness frequently being found together. Nutritional value may be judged by the energy content of the tissue, which increases in proportion to its lipid content, or by the ratio of polyunsaturated fatty acids to saturated fatty acids (P:S ratio), used by COMA to indicate the desirability of the fat as a risk factor for cardiovascular disease. There is evidence that as fatness has been reduced in British pigs, composition has changed with consequences for these characteristics.

scholarly journals Traditional uses and seed chemical composition of Jatropha spp. (Euphorbiaceae) in Tehuacán-Cuicatlán, México

2017 ◽  
Vol 66 (1) ◽  
pp. 266 ◽  
Author(s):  
Nancy Yazmín Hernández-Nicolás ◽  
Leobigildo Córdova-Téllez ◽  
Angélica Romero-Manzanares ◽  
Jaime Jiménez-Ramírez ◽  
Mario Luna-Cavazos
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Traditional Medicine ◽  
Phorbol Esters ◽  
Unsaturated Fatty Acids ◽  
Oral Candidiasis ◽  
Saturated Fatty Acids ◽  
Use Value ◽  
Total Lipids ◽  
Oral Diseases

Jatropha spp. plants are used in traditional medicine, food and for the elaboration of biofuel. The Tehuacán-Cuicatlán Biosphere Reserve in México holds genetic richness and endemism for this genus, but the specific use of the plants and the seed chemical profiles are still unknown. The objectives of this research were to record the traditional forms of use of Jatropha species, and to analyze the chemical composition of Jatropha spp. seeds. For this, a semi-structured survey was conducted in 15 towns, and 20 interviews were applied in each one between May and August 2012. Data allowed to estimate the Significant Use Level and Relative Use Value per species. Besides, seeds from J. neopauciflora, J. rufescens, and J. rzedowskii were collected between August and October 2013, and to seed flour samples we determined total lipids by the Soxhlet method, crude protein by the Kjendahl method, and ashes according to AOAC methods; fatty acid profile and phorbol esters were determined by gas chromatography and by HPLC, respectively. We recorded that the species J. neopauciflora, J. oaxacana, J. rufescens, J. ciliata, and J. rzedowskii, are used as traditional medicine, food, and ornaments, except for J. ciliata, for which none use was recorded. The Significant Use Level as food was found not significant, but for medicinal purposes, J. neopauciflora obtained the highest Relative Use Value (9.0 %). The latex is used to treat 13 disorders, including dental problems (toothache, sensitivity, caries), oral diseases (oral herpes, gingivitis, and oral candidiasis) with a Significant Use Level of 32.9 %; it is also used as a hemostatic. The protein content among species varied from 23.37 to 26.06 %, and total lipids from 34.79 to 36.60 %. The principal unsaturated fatty acids were oleic (25.08 to 30.09 %) and linoleic (44.55 to 48.46 %), and the saturated fatty acids were palmitic (10.11 to 16.50 %) and stearic (9.47 to 11.15 %). Phorbol esters, the main cause of seed’s toxicity, were absent in J. neopauciflora, J. rufescens, and J. rzedowskii. In conclusion, the Significant Use Level of Jatropha species studied was low, with little cultural acceptance and sporadic utilization. The Relative Use Value was important for medicinal purposes, especially for J. neopauciflora. The dehulled seeds of J. neopauciflora, J. rufescens, and J. rzedowskii are potentially useful as food, having high protein contents, and unsaturated oleic and linoleic fatty acids. With this study we report three non-toxic Jatropha species and recommend to scientifically validate the antimycotic use of J. neopauciflora latex.

scholarly journals The effects of breed and feeding regime on the chemical composition of pig back fat as a potential raw material for biodiesel production

2014 ◽  
Vol 59 (2) ◽  
pp. 141-150
Author(s):  
Mladen Popovac ◽  
Dragan Radojkovic ◽  
Milica Petrovic ◽  
Marija Gogic ◽  
Dragan Stanojevic ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Cetane Number ◽  
Fat Content ◽  
Raw Material ◽  
Biodiesel Production ◽  
Fat Tissue ◽  
The Impact

The aim of this study was to evaluate the chemical composition of the back fat tissue of mangalitsa pig and meaty pig breeds and their crosses, and the pigs that were fed with feed that was enriched or unenriched with oil, from the aspect of the production of biodiesel, where the starting material for the fuel would be the fat tissue of pigs. By examining the impact of breed and oil content in feed, it was found that chemical parameters (fat, water, protein, saturated and unsaturated fatty acids) show statistically significant variation under the influence of these factors. The highest fat content (89.39%), which is essential for conversion of fat into biodiesel, was found in back adipose tissue of mangalitsa breed, while the lowest fat content (86.10%) was found in the back fat tissue of meaty breeds and their crosses. Favorable ratio of saturated to unsaturated fatty acids (37.92% : 62.07%), on which some physical properties of the fuel depend, was found in the back fat tissue of pigs that were fed with feed enriched with oil, and the largest proportion of saturated fatty acids, i.e. the most unfavorable fatty acid composition (40.90% : 59.09%) was found in the back fat tissues of pigs that were fed with feed unenriched with oil. The lowest content of saturated fatty acids and water (7.44%), as the key factors that determine the cetane number of the fuel and the fuel production process, indicates that the most suitable raw material for the production of biodiesel is the fat tissue of pigs that were fed with food that contained a certain amount of oil.

scholarly journals Efficiency of the New Fodder Additive for the Production of Lamb

2019 ◽  
Vol 9 (2) ◽  
pp. 3089-3091
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Live Weight ◽  
Control Group ◽  
Standard Diet ◽  
Feed Supplement ◽  
Meat Productivity ◽  
Experimental Group

This article presents material on the study of the efficiency of raising Edilbayev sheep using a new feed supplement and assesses its effect on increasing the meat productivity of animals and improving mutton indices. To do this, we at Volgograd-Edilbay SGC LLC selected 30 animals of the Edilbayev breed of 7 months of age in two experimental groups according to the principle of pair-analogues with 15 animals each. The rams who received the standard diet were included in the control group, and their analogues, which were introduced a new feed additive in the diet, were included in the experimental group. The duration of the experiment was 105 days. In this case, the preparatory period of the experiment is 10 days, the transitional period is 5 days, the main one is 90 days. As a result of the experiment, it was found that at the end of the experiment, the rams of the experimental group exceeded their counterparts in the control group in live weight by 2.9 kg, or 5.72% (P≥0.999). As a result of the control slaughter, it was established that by the pre-slaughter mass, the rams of the experimental group are 1.65 kg or 3.35% more than analogues of the control group (P≥0.95); weight of fat tail fat - by 0.35 kg, or 13.21%; slaughter mass - by 1.49 kg, or 5.23% (P≥0.99); slaughter yield - by 1.09%, respectively. A study of the chemical composition of lamb showed that in the content of the rams of the experimental group in the meat, iodine was 0.08 μg / g more than the analogues of the control group (P≥0.95); silicon - at 3.92 μg / g; selenium - at 0.12 μg / g (P≥0.99); zinc - at 6.0 μg / g, respectively. According to the content of fatty acids, tail fat obtained from animals of the control and experimental groups differs in favor of the experimental group. Saturated fatty acids in turkey fat of animals from the experimental group contain 61.34%, which is 3.22% higher in comparison with the control group. Unsaturated fatty acids in animals of the experimental group contain 38.66%, which is 3.17% less in comparison with the control group. Thus, the highest results in meat productivity, chemical composition, and the amount of saturated and unsaturated acids were obtained from edilbaevsky rams that received a new feed supplement.

scholarly journals Utilization of different vegetable oil sources in diets and the fat acids profile in the growing rabbits meat1

2004 ◽  
Vol 20 (3-4) ◽  
pp. 151-162
Author(s):  
Andréa Barbosa ◽  
C. Scapinello ◽  
N.E. Souza ◽  
M.A.A.F. Barbosa ◽  
Daniela Brito ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Chemical Analysis ◽  
Unsaturated Fatty Acids ◽  
Corn Oil ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Experimental Diet ◽  
Fatty Acids Profile ◽  
The Right

To evaluate the addition of 3% of C.A.N.O.L.A. oil, corn oil and soybean oil to the diets on the chemical composition of rabbits meat, 100 animals were slaughtered, among them 20 with 35 days old and 40 animals with 50 and 70 days old. The slaughtered animals with 35 days old were from broods whose mothers, since the birth received the same experimental diets evaluated after 70 days old. After the slaughter, the right leg meat of each animal was collected and, in each group, receiving the respective experimental diets, were grouped in three composed samples to posterior chemical analysis. The experimental design was in factorial scheme 4x3 (four diets versus three ages) with three replication and 36 analyzed samples. The fatty acids profile deposited in the meat reflects the composition in the experimental diet. The oil addition to the diets, independent of the source decreased the saturated fatty acids level and increased the unsaturated fatty acids in the rabbits meat with the age advance. Particularly, the diet with C.A.N.O.L.A. oil provided the meat with higher monounsaturated fatty acids level and ?3 and lower ?6, resulting in the lower ?6: ?3 ratio.

scholarly journals Nitrogen fertilization changes the productivity and chemical composition of Brown and Golden flax grains

2019 ◽  
Vol 40 (6Supl3) ◽  
pp. 3565
Author(s):  
Milene Puntel Osmari ◽  
João Pedro Velho ◽  
Marjana Chantal Waechter ◽  
Rodrigo Rutz ◽  
Francilaine Eloise de Marchi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Nitrogen Fertilization ◽  
Crude Protein ◽  
Unsaturated Fatty Acids ◽  
Animal Feed ◽  
Saturated Fatty Acids ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Ether Extract

Nitrogen fertilization can be used to increase production for area, as well as to improve the grains nutritional value. The aim of this study was to evaluate the chemical composition of two linseed cultivars (Brown and Golden) submitted to increasing doses of nitrogen fertilization in a completely randomized design. The Brown and Golden flax sowing was in April 2014, using 40 kg of viable seeds ha-1 and 100 kg ha-1 of diammonium phosphate (16-46-00) as fertilizer. It was evaluated the increasing doses of N fertilization in the cover: 0, 50, 100, 150 and 200 kg of N ha-1, applied in the urea form. For the fatty acids (FA) analysis, a composite sample of each variety was performed for the treatment 0 and 200 kg N ha-1. The composite samples were grounded in a multi-use mill with cooling jacket. The cooling was aimed to avoid the heating of the samples during their processing, in order to reduce the chances of FA profile alterations. The application of nitrogen positively influenced the production of grains and oil ha-1 of the cultivars, improved the Brown flax dry matter in vitro digestibility and the Golden flax neutral detergent fiber, ether extract and crude protein amounts. The cultivar Brown flax presented higher production of grains and oil ha-1 when compared to Golden flax, which presented lower neutral detergent fiber, crude protein, total carbohydrates and higher amounts of ether extract. The Golden flax was nutritionally healthier, as it presented higher proportions of C18:3 n3, unsaturated fatty acids, unsaturated/saturated fatty acids and hypocholesterolemic index. Both cultivars have potential ingredients to be used in animal feed, aiming to improve the quality of the final product.

scholarly journals Mesquite Pod (Prosopis Juliflora) meal on Meat Quality of Pasture-Finishing Lambs

2021 ◽  
Author(s):  
Mário Sergio Fernandes Soares Junior ◽  
Kennyson Alves de Souza ◽  
Bruna de Jesus Almeida ◽  
Fabiana Lana de Araújo ◽  
Cristiane Simplício da Silva ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Meat Quality ◽  
Saturated Fatty Acids ◽  
Carcass Characteristics ◽  
Monounsaturated Fatty Acids ◽  
Eicosatrienoic Acid ◽  
Prosopis Juliflora ◽  
Panicum Maximum ◽  
Dietary Treatments

Abstract This study was carried out to evaluate the best inclusion level and the effects of mesquite pod (Prosopis juliflora) meal on carcass characteristics and meat quality for lambs finished in pasture. Forty male, non-castrated, crossbred Santa Inês lambs, with an initial body weight (24.2 ± 3.1 kg), and approximately 120-days old. The animals were kept in a total area of ​​4 ha, divided in 4 paddocks of 0.62 ha each (10 animals/paddocks), on pastures of Massai (Panicum maximum cv. massai) with drinkers and feeders during the finishing phase. Dietary treatments based on levels of corn ground replacement for mesquite pod meal included: CON – Without mesquite pod meal; MPM25 – 250 g/kg of mesquite pod meal; MPM50 – 500 g/kg of mesquite pod meal; and MPM75 – 750 g/kg of mesquite pod meal. No treatment effects were detected (P> 0.05) for carcass measures, carcass characteristics, chemical composition of longissimus thoracis muscle, tissue composition, and lipid oxidation. Lamb meat color values, such as lightness (L*) and yellowness (b*) were not affected (P> 0.05) by mesquite pod meal replacement on the diets, whereas for redness (a*), HUE, and crhoma were influenced (P< 0.05). Palmitic acid had a quadratic effect, while oleic acid, eicosatrienoic acid, saturated fatty acids, monounsaturated fatty acids, and PUFA:SFA had a linear course (P< 0.05). In conclusion the mesquite pod meal can be used as an energy feed source up to 750 g/kg of dry matter in the diet, without changing the carcass characteristics and meat quality of lambs finished in pasture.

scholarly journals The quality of goat meat and it’s impact on human health

2016 ◽  
Vol 32 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Snezana Ivanovic ◽  
Ivan Pavlovic ◽  
Boris Pisinov
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Nutritional Value ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Essential Amino Acids ◽  
Health Condition ◽  
Mineral Matter ◽  
Average Chemical Composition ◽  
Goat Meat

Today, goats are spread throughout the world. They live in small or large herds and in different areas and environments. Because of its distinctive taste and desired chemical composition, goat meat is increasingly consumed in Serbia. As animal foods, it is rich in protein, vitamins and minerals, but contains very little fat, especially cholesterol. The aim of this review paper is to highlight some health benefits, nutritional values and potential use of goat meat. On the chemical composition of goat meat affect race, gender, productivity and adaptability to stress, environment, management, diet, weight at slaughter and health condition as well as slaughter and procedures with the carcasses after slaughter. Average chemical composition of lean goat meat contains about 75.42% water, 3.55% fat, 19.95 % protein and 1.06% mineral matter. The energy value is about 580 kJ per 100 g. The goat meat has about the same nutritional value as well as sheep meat. Due to low content of saturated fatty acids and cholesterol, goat meat in the human diet is healthier alternative compared to other types of red meat. Polyunsaturated fatty acids prevalent in goatmeat, and the diet rich in unsaturated fatty acids is correlated with a reduced risk of stroke and coronary disease. In addition, in goat meat are present the essential amino acids such as lysine, threonine and tryptophan. Regardless to the nutritional value, goat meat is still less appreciated due to their specific smell and taste, the more if the animal is older.

DEVELOPMENT OF AN EXPERIMENTAL MODEL OF AVITAMINOSIS F

2020 ◽  
Vol 20 (2) ◽  
pp. 38-40
Author(s):  
A. Levitsky ◽  
A. Lapinska ◽  
I. Selivanskaya
Keyword(s):  
Fatty Acids ◽  
Experimental Model ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Coconut Oil ◽  
The Body ◽  
Regulatory Function ◽  
Omega 3 ◽  
White Rats ◽  
Arachidonic Acids

The article analyzes the role of essential polyunsaturated fatty acids (PUFA), especially omega-3 series in humans and animals. The biosynthesis of essential PUFA in humans and animals is very limited, so they must be consumed with food (feed). Тhe ratio of omega-3 and omega-6 PUFA is very important. Biomembranes of animal cells contain about 30% PUFA with a ratio of ω-6/ ω-3 1-2. As this ratio increases, the physicochemical properties of biomembranes and the functional activity of their receptors change. The regulatory function of essential PUFA is that in the body under the action of oxygenase enzymes (cyclooxygenase, lipoxygenase) are formed extremely active hormone-like substances (eicosanoids and docosanoids), which affect a number of physiological processes: inflammation, immunity, metabolism. Moreover, ω-6 PUFA form eicosanoids, which have pro-inflammatory, immunosuppressive properties, and ω-3 PUFAs form eicosanoids and docosanoids, which have anti-inflammatory and immunostimulatory properties. Deficiency of essential PUFA, and especially ω-3 PUFA, leads to impaired development of the body and its state of health, which are manifestations of avitaminosis F. Prevention and treatment of avitaminosis F is carried out with drugs that contain PUFA. To create new, more effective vitamin F preparations, it is necessary to reproduce the model of vitamin F deficiency. An experimental model of vitamin F deficiency in white rats kept on a fat –free diet with the addition of coconut oil, which is almost completely free of unsaturated fatty acids, and saturated fatty acids make up almost 99 % of all fatty acids was developed. The total content of ω-6 PUFA (sum of linoleic and arachidonic acids), the content of ω-3 PUFA (α-linolenic, eicosapentaenoic and docosahexaenoic acids) in neutral lipids (triglycerides and cholesterol esters) defined. Тhe content of ω-6 PUFA under the influence of coconut oil decreased by 3.3 times, and the content of ω-3 PUFA - by 7.5 times. Тhe influence of coconut oil, the content of ω-6 PUFA decreased by 2.1 times, and the content of ω-3 PUFA - by 2.8 times. The most strongly reduces the content of ω-3 PUFA, namely eicosapentaenoic, coconut oil, starting from 5 %. Consumption of FFD with a content of 15 % coconut oil reduces the content of eicosapentaenoic acid to zero, ie we have an absolute deficiency of one of the most important essential PUFAs, which determined the presence of vitamin F deficiency.

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