Selenium-Enriched Yeast: As Selenium Source for Nutritional Purpose

Esmaeili, Saeideh

doi:10.2174/157340131001140328115753

Cited by 20 publications

(17 citation statements)

References 58 publications

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“…The commercial technology of production of Se-yeast is based on the aforementioned features. Saccharomyces cerevisiae is the main yeast strain used for aerobic fermentation in a Se-enriched medium containing beet or cane molasses, vitamins, nutritional salts, and sodium selenite as the Se source to produce Se-yeast (Esmaeili and Khosravi-Darani, 2014). An important limitation to Seyeast production is the toxicity of sodium selenite to yeast cells, which results in dramatic reductions in yeast growth.…”

Section: Se-yeast: Advantages and Disadvantagesmentioning

confidence: 99%

“…Consequently, there are several points that remain to be addressed for commercial usage of Se-yeast. Firstly, based on modern Se-yeast production technology, it is not possible to guarantee an exact percentage of SeMet in the final product, as its composition depends on fermentation conditions, including yeast strain, source of inorganic Se, Se concentration, protocol of Se addition, base medium, energy sources (molasses), pH, temperature, shaking speed, aeration, inoculum size, and incubation time (Esmaeili and Khosravi-Darani, 2014). Indeed, the Se-metabolite profile of Se-yeast is influenced by cultivation conditions (Rao et al, 2010).…”

Section: Se-yeast: Advantages and Disadvantagesmentioning

confidence: 99%

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Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources

et al. 2018

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Selenium (Se) is an essential element in poultry nutrition and its bio-efficacy depends on its chemical form. A growing body of research proves that organic forms of Se, mainly selenomethionine (SeMet), in poultry diets have a range of important advantages over traditional sodium selenite. In fact, the organic Se concept considers SeMet as a storage form of Se in the chicken body. As chickens are not able to synthesize SeMet, its provision through diet is a key strategy to fight commercially relevant stresses. Indeed, in stress conditions, when increased selenoprotein expression requires additional Se, while its provision via feed usually decreases due to a reduction in feed consumption, Se reserves in the body (mainly in the muscles) could help maintain an effective antioxidant defense and prevent detrimental consequences of stresses. The poultry industry is looking for the most effective sources of organic Se for commercial use. In this review, advantages and disadvantages of main organic Se sources for poultry (Se-yeast, SeMet, and OH-SeMet) are analyzed, and future directions for the development of new Se sources are identified.

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Section: Se-yeast: Advantages and Disadvantagesmentioning

confidence: 99%

Section: Se-yeast: Advantages and Disadvantagesmentioning

confidence: 99%

Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources

et al. 2018

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“…Therefore, Se-enriched animal products are gaining popularity for improving the Se health status of their human consumers. A fair number of studies tried to produce Se-enriched animal products via feed-based nutritional interventions to increase Se deposition in meat, egg, and milk (6)(7)(8)(9)(10). For example, Se deposition in egg yolk and albumen rose as dietary Se supplement levels increased, regardless of the Se source used (3,11,12).…”

Section: Introductionmentioning

confidence: 99%

Effects of Selenium-Enriched Yeast on Performance, Egg Quality, Antioxidant Balance, and Egg Selenium Content in Laying Ducks

et al. 2020

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“…Organic Se, such as Se-enriched yeast, Se-proteinate produced enzymatically by hydrolyzed soy protein, nano-Se, and Se-amino acids [ 25 ], has recently become available. Saccharomyces cerevisiae has been established as the main strain used for aerobic fermentation in Se-enriched media with sodium selenite as Se source, which accumulates and incorporates into organic Se-containing compounds to produce Se-yeast [ 26 ]. Organic Se supplements have several advantages over inorganic Se supplements, including increased egg Se concentration, improved oxidative stability, and a better fatty acid profile of the stored egg content [ 13 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Sodium Selenite, Selenium Yeast, and Bacterial Enriched Protein on Chicken Egg Yolk Color, Antioxidant Profiles, and Oxidative Stability

Muhammad

Mohamed

Loh

et al. 2021

Foods

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The chicken egg is one of nature’s flawlessly preserved biological products, recognized as an excellent source of nutrients for humans. Selenium (Se) is an essential micro-element that plays a key role in biological processes. Organic selenium can be produced biologically by the microbial reduction of inorganic Se (sodium selenite). Therefore, the possibility of integrating Se enriched bacteria as a supplement in poultry feed can provide an interesting source of organic Se, thereby offering health-related advantages to humans. In this study, bacterial selenoproteins from Stenotrophomonas maltophilia was used as a dietary supplement with other Se sources in Lohman brown Classic laying hens to study the egg yolk color, egg yolk and breast antioxidant profile, oxidative stability, and storage effect for fresh and stored egg yolk at 4 ± 2 °C for 14-days. The results showed that dietary Se supplementation significantly (p < 0.05) improved egg yolk color, the antioxidant profile of egg yolk, and breast meat (total carotenoid and phenol content). When the Se treated groups were compared to control groups, there was a significant (p < 0.05) decrease in total cholesterol in fresh and stored egg yolk and breast muscle. In hens that were fed ADS18-Se, the primary oxidation products (MDA) concentrations in the eggs, breast, and thigh muscle, and plasma were significantly (p < 0.05) lower. However, the MDA content increased (p < 0.05) with an extended storage time in egg yolk. In comparison to inorganic Se and basal diets, egg yolk from hens fed organic Se remained fresh for two weeks. The egg yolk color, antioxidant profile, and oxidative status of egg yolk and tissue improve with dietary Se organic supplementation (ADS18 > Se-Yeast). The source of supplemented organic Se is critical for egg enrichment and antioxidant properties. As a result, ‘‘functional eggs’’ enriched with organic Se becomes possible to produce.

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Selenium-Enriched Yeast: As Selenium Source for Nutritional Purpose

Cited by 20 publications

References 58 publications

Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources

Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources

Effects of Selenium-Enriched Yeast on Performance, Egg Quality, Antioxidant Balance, and Egg Selenium Content in Laying Ducks

Effect of Sodium Selenite, Selenium Yeast, and Bacterial Enriched Protein on Chicken Egg Yolk Color, Antioxidant Profiles, and Oxidative Stability

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