Wednesday, April 3, 2019
Red Meat and Protein
carmine shopping centre and ProteinAvitta Olivero cherrydened affection as a mention of proteinIntroduction fondness and processed centre products ar a spanking source of protein, lipids and some other(a) nutritionaryly pregnant functional constituents which ar requirement components in a gentlemane diet. The twain main categories of vegetable marrow ar personnel casualty and white hail. As per nutritionary concepts, the red totality is referred to as the one which is reddish in carriage in rude state and has an elevated myoglobin matter in it. blushing(a) magnetic core category which is highly consumed by homosexuals take beef, lamb, porc and processed magnetic core products. White perfume is the one with a disturbed appearance and mainly includes poultry, veal and rabbit.Protein are macromolecules which are composed of pine chains of amino group stingings and are referred to as the building block of the physical structure as it is salute in every single cell in the human physical structure. It is vital to include protein containing sustenance in the diet as it essential for major functions include growth and repair and is a major energy source of the body. Among the different diet stuffs nerve centre and meat products supplies the obligatory protein in human diet. Protein is present in both the vegetarian and non-vegetarian food. As per the un screened Zealand nutrition prepareation animal food as well as full treatment sources such(prenominal) as soya and quinoa supplies the essential amino venomouss which are substantial for the body functions. This essay specifically focusses on analysing the importance of carmine meat as a source of protein.Literature look back food for thought profile of meatA critical compendium on the nutritional composition of any food is essential for any study on human nutrition. core has become an integral pick of human diet. Meat is a complex structured food which includes components of biological value such as micronutrients (minerals and vitamins), proteins, fats and low level of carbohydrates. As Per the Food Standards Australia New Zealand the meat includes the flesh with skeletal vim and fat as well as offal which include the internal organs of the animal. Meat comprises about 75 % wet cloy 20 % protein, 3 % lipid and 2 % soluble non-proteinaceous compounds (Briggs Schweigert, 1990). Meat serves as a vital source of proteins, vitamins such as vitamin B6, B12 and vitamin D, omega-3 unsaturated fatty acids and minor levels of trace elements such as zinc, iron, phosphorus, bioactive compounds ilk carnitine, carnosine, ubiquinone and several antioxidant compounds. All these nutritional sates of meat acquit it an essential component of human diet (Williams, 2007).Importance of Protein in human diet Proteins are nitrogenous compounds which are constituted of amino acids. in that respect are about twenty aminoacids which are vital for the growt h and other cellular functions. Amino acids are mainly categorised in 2 essential and non-essential aminoacids. Non-essential aminoacids are those which can be synthesized by the body and those which cannot be synthesized by the human body and supplied via the diet are essential amino acids (Hoffman Falvo, 2004).Animal protein is the appropriate source of protein as it includes the essential amino acid content in it and hence it is essential to in include animal instal food in the diet. Animal based food include meat and meat products (Pighin et al., 2016).Red Meat protein Meat is composed of higher(prenominal) denseness of proteins which includes the structural proteins such as myofibrillar protein, sarcoplasmic proteins and proteins that are present in association tissue such as collagen and elastin (Pighin et al., 2016). Meat is a complete source of protein as it includes all essential amino acids such as lysine, threonine, methionine, phenylalanine, tryptophan, leucine, is oleucine, valine. Protein closeness differs in both raw and cooked meat as the nutrients get to a greater extent concentrated during cookery process due to the depletion of water content in the meat and the meat proteins exhibit higher digestibleness ratio. As per the studies, 100g of raw red meat contain about 20-25% of protein whereas in 100g of cooked red meat the protein content is about 28-36% as the protein profile is modified after the cooking process. shout out and pork are considered to have the highest protein content in them. The U. S Dietary Reference Intake (USDRI) recommend a daily divine guidance of 0.8g/kg of protein for adults which is the basic requirement for the congruous functioning of the body and this decreed intake rate of protein by USDRI lowers the incidence of cardiovascular diseases, osteoporosis and diabetes particularly type-2 diabetes (McNeill, 2014). evaluation of meat protein prime(prenominal)Protein digestibility corrected amino acid score(PD CAAS) is a standard systemology recommended by world health organization and food and agriculture organization (FAO/WHO) to estimate the protein quality. In this method the protein quality is estimated by expressing the content of the first limiting essential amino acid of the test protein as a percentage of the content of the same amino acid content in a reference pattern of essential amino acids (FAO/WHO, 1990). The resultant value obtained by this method was taken as the protein digestibility corrected amino acid score (PDCAAS) and highest possible score in this method is 1.0. As per the PDCAAS method the protein quality score of red meat is estimated to be 0.9 whereas the protein quality score is amidst 0.5-0.7 for plant based food. concord to Schaafsma, the protein digestibility corrected amino acid score is considered to the reliable method for estimating the quality of proteins consumed in the human diet (Williams, 2007).Table showing the protein quality rankings according to FAO/WHO (Williams, 2007).Near-infrared spectrometryNear infrared reflectivity (NIR) spectroscopy is an ultra- sensitive, quick and less complicated analytical technique that aids in the judging of chemical constituents present in the meat sample (Osborne, Fearn, Hindle, 1993).Near infrared spectroscopy is an advanced method that is widely employed in the quantitative analysis of fat, protein and moisture content in meat and meat products. The differentiation between mixed classes such as beef and kangaroo meat, chilled and non-chilled beef was possible by the near-infrared spectroscopy method. Sample preparation has a vital role in this method as the non-homogenised muscles absorb bulk amount of energy and generating a less accurate reflectance pattern in comparison with the non-homogenised muscle sample. Inaccurate preparation of meat samples adversely affected the clarity of the prophecy of chemical composition of meat sample is equivalent to the protein quantity of the food sample.(Prieto, Roehe, Lavn, Batten, Andrs, 2009)Other nutritional constituents of red meat productiveFat is considered as the important repository of energy that supplies the necessary fatty acids and serves as precursors for various metabolic mechanism in the body. The fatty acid content in red meat are saturated in record because the unsaturated fatty acid is transformed to saturated form by the microbes present in the rumen. The major saturated fatty acids present in red meat are palmitic and stearic acid. The fatty acid content varies when the fat is trimmed off from the meat.(Gerber, 2007)VitaminsVitamins are organic compounds that are present in minor concentration in food and are important for metabolic functions. The major vitamins present in meat and meat products include vitamin B12, B1 (thiamine), B6 and vitamin D. vitamin B6 acts as a coenzyme for several chemical reactions in the human body such as gluconeogenesis. The vitamin B6 concentration are expected to be in the range between 0.40-0.6mg/100g of meat. Vitamin B12 which is commonly known as riboflavin. The vitamin B12 involved in human metabolic process includes the Methyl cobalamin and 5-deoxyadenosyl cobalamin (Rivlin Pinto, 2001). Vitamin B1 is vital for normal cellular functions and serves as a coenzyme in various chemical process in the body. (Gerber, 2007)Minerals and trace elementsThe major minerals which are prevalent in red meat are the iron and zinc. The highest concentration of these minerals is observed in beef and pork meat(Williams, 2007).The iron content present in red meat is the heme iron rather than the non-heme iron contained in plant based foods. The heme iron is readily absorbed by the human body and this preoccupancy rate is enhanced by the protein present in red meat. In meat, the factors such as phytate, tannin, oxalate and fibres are absent in red meat which can adversely affect the iron absorption rate. Similarly, the zinc absorption from animal based food is relatively higher than that from plant based food stuffs. The vital trace element found in meat is the selenium which are an integral part of selenoproteins which includes enzymes that are involved in important process such as anti-oxidative self-denial mechanism, synthesis of thyroid hormone and nucleic acid (DNA), fertility and reproduction.(Gerber, 2007)health benefits of Red meat consumption Emergence in the research of red meat as a source of high bioavailable irons, high grade protein and other essential nutrients is on high as great importance is given(p) in the improvement of stamina and vitality. Middle age and beyond requires more than consumption of high grade protein which is essential for the maintenance quality of action associated with the required muscle strength and mass. Protein causes a stimulation effect on the anabolism of muscle protein. (McAfee et al., 2010)Amino acids present in red meat are branched chain amino acids, which are necessary for the synt hesis of protein. Red meat contains the highest amount of branched chain amino acids. (Ford Caspersen, 2012)DemeritsPrevious studies queer people with excess intake of red meat have been found to have higher cholesterol and higher plasma concentration of total cholesterol and Low-density lipoprotein (LDL) cholesterol and triglycerides(TG) as compared to low and medium consumer of red meat as well as vegans and vegetarians. There have as well been studies showing significant relation between red meat and put on the line of colon cancer. Cooking red meat at higher temperature leads to the developing of mutagenic compounds such as HCAs and polycyclic aromatic hydrocarbons (PAHs) which are responsible for various cancers. There are also evidences that show the saturated fatty acid content in red meat can be connect with chronic heart diseases. (McAfee et al., 2010)Summary Red meat is a bass source of nutritionally rich compounds which are essential in a human diet. Meat is a pote nt source of protein and it supplies the major amino acids that cannot be synthesized by the body termed as essential amino acids. The nutrient composition of meat includes fat, essential amino acids, vitamins, minerals and trace elements that makes it an inevitable part of human diet. Certain studies do show red meat is ruinous when consumed in higher amounts and when cooked at higher temperatures, hence a proper monitoring on the cooking practices and consumption of red meat is essential to maintain a healthy diet.ReferencesBriggs, G., Schweigert, B. (1990). An overview of meat in the diet. Advances in meat research (USA).Ford, E. S., Caspersen, C. J. (2012). Sedentary behaviour and cardiovascular disease a review of prospective studies. International journal of epidemiology, dys078.Gerber, N. (2007). The role of meat in human nutrition for the supply with nutrients, particularly functional long-chain n-3 fatty acids. ETH.Hoffman, J. R., Falvo, M. J. (2004). Protein-Which is b est. Journal of Sports acquisition and Medicine, 3(3), 118-130.McAfee, A. J., McSorley, E. M., Cuskelly, G. J., Moss, B. W., Wallace, J. M., Bonham, M. P., Fearon, A. M. (2010). Red meat consumption An overview of the risks and benefits. Meat science, 84(1), 1-13.McNeill, S. H. (2014). Inclusion of red meat in healthful dietary patterns. Meat science, 98(3), 452-460.Osborne, B. G., Fearn, T., Hindle, P. H. (1993). Practical NIR spectroscopy with applications in food and beverage analysis Longman scientific and technical.Pighin, D., Pazos, A., Chamorro, V., Paschetta, F., Cunzolo, S., Godoy, F., . . . Grigioni, G. (2016). A Contribution of Beef to Human Health A Review of the Role of the Animal fruit Systems. The Scientific World Journal, 2016.Prieto, N., Roehe, R., Lavn, P., Batten, G., Andrs, S. (2009). Application of near infrared reflectance spectroscopy to predict meat and meat products quality A review. Meat science, 83(2), 175-186. doihttp//dx.doi.org/10.1016/j.meatsci.20 09.04.016Rivlin, R. S., Pinto, J. T. (2001). Riboflavin (vitamin B2). Handbook of vitamins. 3rd ed. New York Marcel Dekker, 255-273.Williams, P. (2007). nutritionary composition of red meat. Nutrition Dietetics, 64(s4), S113-S119.
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