Characteristics of Phytase Enzyme and its Role in Animal Nutrition

Shanmugam, Geetha

doi:10.20546/ijcmas.2018.703.120

Cited by 10 publications

(9 citation statements)

References 40 publications

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“…P is a vital element for the growth and development of living organisms and regulates various metabolic processes 14 . It exists as phytate salts, stored inside the legume seeds, cereals, oilseeds, nuts, pollens, spores and vegetative tissues (root, stem, leaves) 15 . Phytate has anti‐nutritional properties due to its binding nature with minerals, proteins and other biomolecules 16–18 .…”

Section: Introductionmentioning

confidence: 99%

“…Phytase releases P and other essential nutrients hence ameliorating the nutritive value of feed 19 . Phytase‐producing fungi and bacteria are present in the gut of ruminant animals; but absent in monogastric animals like fish 15 . Such animals depend on the supplementation of their diet to acquire adequate nutrition; hence, their diet is often fortified with inorganic P to achieve their optimal growth and development.…”

Section: Introductionmentioning

confidence: 99%

“…Such animals depend on the supplementation of their diet to acquire adequate nutrition; hence, their diet is often fortified with inorganic P to achieve their optimal growth and development. The addition of inorganic P leads to the accumulation of dietary P inside the body of fish, which is released out in manure or excreta, causing algal blooms, hypoxia, death of aquatic species and nitrous oxide production 13,20 . Due to the lack of adequate amount of phytase in digestive tract of agastric and monogastric fish, phytate‐P is also excreted in aquatic bodies leading to environmental problems such as eutrophication and P pollution.…”

Section: Introductionmentioning

confidence: 99%

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Role of microbial phytases in improving fish health

Priya

Virmani

Pragya

et al. 2023

Reviews in Aquaculture

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Fishmeal is the most preferred protein source in aquafeed industry due to its balanced amino acid and fatty acid profile, but its limited global supply and high price value, necessitates researchers to focus on sustainable alternative sources of protein and plant‐based feed, to meet the growing demand of fish feed. Phytate is a reservoir of phosphorus present in the plants; however, its chelating ability makes it anti‐nutritional. Phytate forms complexes with minerals, proteins, lipids and carbohydrates, confining their accessibility in fish feeds, hence, additional dietary nutrients are required in the fish feed to overcome nutritional deficiencies. The elimination of phytate‐phosphorus through animal faeces and its pass on to aquatic bodies leads to enrichment of nutrients, eutrophication and algal blooms. Microbial phytase segregates phosphorus, minerals, proteins and lower inositol phosphates from phytate. The supplementation of fish feed with microbial phytase enhances the digestibility of minerals, due to which less nutrients are excreted in the faeces; therefore, minimizing pollution in water bodies. Monogastric and agastric animals inherently exhibit the deficiency of phytase; hence, supplementation of dietary material with phytase has been an emerging choice to make dietary nutrients available for fish. Moreover, microbial phytases have a broad pH range and are thermostable, which makes them an excellent choice for commercial fish feed production. Additionally, microbial phytase improves fish growth as these enzymes enhance nutrients bioavailability and their digestion. This review article presents the application of microbial phytases as a feed additive, and their role in enhancing fish growth.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Role of microbial phytases in improving fish health

Priya

Virmani

Pragya

et al. 2023

Reviews in Aquaculture

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“…However, 67% of total P in corn grain, legume seeds, oilseed plants, and cereal wastes contained in feed are bound to phytic acid (Steiner et al 2007), thus most of the P in feed cannot be digested by monogastric animals such as poultry and pigs. For this reason, phytic acid acts as an antinutritional factor that inhibits the absorption of various minerals in poultry (Shanmugam et al 2018). Phytic acid also causes environmental pollution by extra supplemented phosphorus in animal diets (Mittal et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Phytase-producing microorganisms can be isolated from various sources, one of them is from traditional fermented food products (Basu et al 2015) i.e bacterial groups such as Lactobacillus rhamnosus (RSJ13), L. brevis (JL1, JL3, JL7), L. fermentum (JL2, JL5, JL6, RS2, RS6) (Basu et al 2015), L. plantarum , Pediococcus pentosaceus (PKL-17) and Enterococcus sp. (PKL-28) (Monica et al 2017), fungal groups such as Aspergillus tubingensis (Qasim et al 2016), A. niger, Rhizopus oryzae, Neurospora crassa and N. sitophila (Kanti and Sudiana 2016;2018), while from the yeast group, derived of Saccharomyces cerevisiae, Pichia kudriavzevii (Noubariene et al 2014), Issatchenkia orientalis, Hanseniaspora guilliermondii (Hellstorm et al 2010), Candida. tropicalis (BOM210) and P. kluyveri (LKC17) (Ogunremi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Isolation and identification of phytate-degrading yeast from traditional fermented food

et al. 2021

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Abstract. Suryani AE, Anggraeni AS, Istiqomah L, Damayanti E, Karimy MF. 2021. Isolation and identification of phytate-degrading yeast from traditional fermented food. Biodiversitas 22: 866-873. Application of phytase (myo-inositol hexakisphosphate phosphohydrolase) to catalyze the release of phosphate from phytates contained on grain-based feed has been used widely in poultry feed industry. In this study, yeast as phytase producer from traditional fermented food was isolated, screened and identified their morphological, biochemical, and molecular characteristics. Production of extracellular phytase from yeast was quantified using spectrophotometer. The results showed that among 8 yeast isolates that had phytase activity, there were two isolates with the highest phytase activity and specific activity which were TKd3 isolate (6.57 U/mL and 54.230 U/mg) and GF1 (6.07 U/mL and 53.68 U/mg). Morphological identification using Scanning Electron Microscope revealed that TKd3 cells isolated from soybean tempeh had an elongated oval cell structure, whereas the GF1 isolated from fresh gatot had a rounder cell structure. TKd3 isolate with accession number MW131530 had homology with Candida tropicalis ATCC 750 28S rRNA with 99.83% similarity and GF1 isolate with accession number MW131531 had homology with Candida tropicalis ATCC 750 28S rRNA with 100% similarity. It could be concluded that C. tropicalis yeast from traditional fermented food produced the extracellular phytase for further use of phytase in poultry feed additive.

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