Sources of Carotenoids and Their Uses As Animal Feed
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Scientific Papers. Series D. Animal Science. Vol. LXI, Number 2, 2018 ISSN 2285-5750; ISSN CD-ROM 2285-5769; ISSN Online 2393-2260; ISSN-L 2285-5750 important role in molecular processes of cell molecules, joined in a head to tail pattern membranes whose structure, properties and (Mattea, 2009; Domonkos, 2013). Structurally, SOURCES OF CAROTENOIDS AND THEIR USES stability can be modified, leading to possible carotenoids take the form of a polyene chain AS ANIMAL FEED ADDITIVES – A REVIEW beneficial effects on human health (Zaheer, that functions as a chromophore, due to 9-11 2017). conjugated double bonds and possibly Diana PASARIN, Camelia ROVINARU Out of high production and marketability terminating in rings, what determines their reasons, carotenoids are present in the animal characteristic color in the yellow to red range National Institute for Research and Development in Chemistry and Petrochemistry kingdom, playing functions such as coloring (Vershinin, 1999). The presence of different 202 Spl. Independentei, Bucharest, Romania (pets/ornamental birds and fish, mimicking), number of conjugated double bounds leades to flavoring (scents and pollination in nature), various stereoisomers abbreviated as E- and Z- Corresponding author email: [email protected] reproduction (bird feathers and finding mates; isomers, depending on whether the double development of embryos), resistance to bonds are in the trans (E) or cis (Z) Abstract bacterial and fungal diseases, immune configuration (Vincente et al., 2017). responses (lutein connected to anti- Carotenoids are synthesized by all Carotenoids are natural pigments, widely distributed in nature, synthesized by plants, algae, fungi, and phototrophic bacteria. Carotenoids have coloring power and antioxidant properties, being used as colorants for foods, cosmetics and inflammatory natural substance in poultry), as photosynthetic organisms and some non- feeds. Nowadays, a small part of industrial carotenoids is obtained from algae and plants, and the most part is well as normal development of skin and photosynthetic bacteria and fungi (Ruiz-Sola, chemically synthesized, but with high production cost. Taking into account consumer’s demand for natural compounds, mucosa. 2012). Due to length of the polyene there is an increased trend for products containing natural ingredients including those used in animal feed. Products The aim of this review is to highlight the tail, carotenoid compounds are involved in quality and animal health are influenced by carotenoids added in feed as important component in daily diet. This paper various sources of carotenoids and their capturing energy from light, absorbing reviews aspects regarding the main sources of carotenoids used as feed additives for nutritional and coloring properties and their impact on animal and human health. application in animal feed additives. This topic wavelengths, ranging from 400-550 has rarely been described in a general matter, nanometers (violet to green light), thus Key words: carotenoids, feed additives, sources of carotenoids, pigmentation. and as such we endeavor to provide an assisting in photosynthesis and causes the overview of published works on the subject. compounds to be deeply colored yellow, INTRODUCTION properties and deposition of carotenoids crucial orange, or red (Vershinin, 1999; Zakynthinos, for consumers (egg yolks and other products). DEFINITION, CHEMICAL STRUCTURE 2016). Carotenoids gained great interest lately for food In fact, as studies show, there is a strong AND CLASSIFICATION OF There have been identified over 750 naturally and feeding, as their functions related to relationship between diets/foods rich in CAROTENOIDS occurring carotenoids, biosynthesized de novo nutrition, health and wellbeing are well carotenoids and the risk reduction of various by plants, algae, fungi and bacteria (Okada et appreciated. As consumers become more and diseases. Carotenoids increase the immune Carotenoids are natural pigments, widely al., 2008), among which only 50 have more aware of the importance of natural response, are excellent antioxidants, scavenging distributed in nature, responsible for the significant biological activity for animals and instead of synthetic and artificial ingredients, and inactivating free radicals. This is why both coloring of fruits, vegetables and flowers. humans (Mezzomo et al., 2016). they tend to change preferences and replace vitamin A precursor carotenoids and the non- Carotenoids take their name from carrot Animals cannot synthesize carotenoids (Rock, products in their diets according to norms precursors ones play an important role in the (Daucus carota), which accumulates high 2009), obtaining them through dietary intake, which no longer respond to good, tasty and protection and inhibition of serious diseases as levels of these pigments in the root, being an with a few exceptions, represented by aphids affordable consumptions, yet to higher, long- cancer, atherosclerosis, cataracts, macular exception among plants (Stange, 2015). They and spiders which acquired the ability and term perspective standards (García-Chavarría degeneration, multiple sclerosis, degenerative are used as food colorants, feed supplements, genes from fungi (Moran, 2010; Nováková, and Lara-Flores, 2013; Carotenoids Market by diseases, and cardiovascular diseases for cosmetic and pharmaceutical purposes. 2012) or are produced by endosymbiotic Type, 2016; Mohiseni., 2017). (Mezzomo et al., 2016). Most carotenoids are made up of eight bacteria in whiteflies (Sloan, 2012). In this line, arguments related to the On the other hand, there is no novelty feeding condensed 5-carbon-containing isoprene Carotenoids are classified in Table 1. replacement of synthetic carotenoids with animals with carotenoids, these have always natural ones in case of animal feed additives been part of their daily diet. Astaxanthin is the Table 1. Classification of carotenoids lay in multiple health impact through major carotenoid used for pigmentation of fish Classification Major classes Structure Examples Attribute References environment and animal to human health (Kaur muscle, mainly salmons (Bhosale, 2004). Beta- criteria and Shah, 2017). carotene, lycopene, and lutein increase growth Chemical Carotenes Hydrocarbons (constituted α-carotene -color range from pale Delgado-Vargas, 2000 As such, many researches have been directed to performance of animals and quality of structure by carbon and hydrogen) β- carotene yellow, bright orange to Tinoi, 2005 in-depth knowledge on carotenoid sources, pigmented products (Nelis and De Leenheer, that can be cyclized at one γ-carotene deep red Aizawa, 2007 or both ends of the molecule lycopene -maintains eye health Kaur and Shah, 2017 especially natural ones, for their use as animal 1991). Animals and humans are unable to torulene -does not color the fish feed additives, so as to benefit from their synthesize carotenoids, they have to meet their Oxycarotenoids Oxygenated hydrocarbon lutein, zeaxanthin, β- -generally yellow in color Delgado-Vargas, functions including skin and tissues daily nutritional needs from the products (xanthophylls) derivatives that contain at cryptoxanthin, -antiallergic and anti- 2000; pigmentation (especially when it comes to ingested (Priyadarshani and Rath, 2012). least one oxygen atom as astaxanthin, cancerous actions Bhosale and Berstein, hydroxyl groups, keto, canthaxanthin, -can color the fish 2005; animals/birds grown in captivity), as growth Carotenoids, as part of the nutrients in the feed, epoxy, methoxy, or violaxanthin,neoxanthin, -colors egg yolks Kushwaha et al, 2014. promoters (in terms of mass production), for support animal health and animal products carboxylic acid antheraxanthin reproduction and survival goals, sensory quality (Amaya et al., 2014). They have an 74 important role in molecular processes of cell molecules, joined in a head to tail pattern membranes whose structure, properties and (Mattea, 2009; Domonkos, 2013). Structurally, SOURCES OF CAROTENOIDS AND THEIR USES stability can be modified, leading to possible carotenoids take the form of a polyene chain AS ANIMAL FEED ADDITIVES – A REVIEW beneficial effects on human health (Zaheer, that functions as a chromophore, due to 9-11 2017). conjugated double bonds and possibly Diana PASARIN, Camelia ROVINARU Out of high production and marketability terminating in rings, what determines their reasons, carotenoids are present in the animal characteristic color in the yellow to red range National Institute for Research and Development in Chemistry and Petrochemistry kingdom, playing functions such as coloring (Vershinin, 1999). The presence of different 202 Spl. Independentei, Bucharest, Romania (pets/ornamental birds and fish, mimicking), number of conjugated double bounds leades to flavoring (scents and pollination in nature), various stereoisomers abbreviated as E- and Z- Corresponding author email: [email protected] reproduction (bird feathers and finding mates; isomers, depending on whether the double development of embryos), resistance to bonds are in the trans (E) or cis (Z) Abstract bacterial and fungal diseases, immune configuration (Vincente et al., 2017). responses (lutein connected to anti- Carotenoids are synthesized by all Carotenoids are natural pigments, widely distributed in nature, synthesized by plants, algae, fungi, and phototrophic bacteria. Carotenoids have coloring power and antioxidant properties, being used as colorants for foods, cosmetics and inflammatory