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Chatzidimitriou E, Davis H, Baranski M, Jakobsen J, Seal C, Leifert C, Butler G. Variation in nutritional quality in UK retail eggs. Food Chem 2024; 454:139783. [PMID: 38795627 DOI: 10.1016/j.foodchem.2024.139783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 04/15/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Fatty acid (FA), carotenoid and vitamin contents of UK eggs were assessed for four production systems (caged (CA), free-range (FR), organic (OR) and extensive organic (EO)) as well as season. The impact of enforced housing, due to avian influenza, was also investigated. Production system did not alter vitamin D3, B2 or B9 content, but significantly influenced nutritionally desirable FA, carotenoid and vitamins A and E - concentrations decreased as production intensity increased, although for most, CA and FR did not differ significantly. Vitamin E and FA profiles for OR and EO were also similar, although carotenoids were higher in EO eggs. In contrast, FA, carotenoids, vitamins E and B9 were consistent throughout the year, unlike vitamins A, D3 and B2, which fluctuated with season; D and B2 were higher in July than January and lower vitamin A was the only detected implication from enforced housing of FR and OR birds.
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Affiliation(s)
- Eleni Chatzidimitriou
- School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; Foodscale Hub, Leontos Sofou 20, 57001 Thermi, Thessaloniki, Greece
| | - Hannah Davis
- School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Marcin Baranski
- Laboratory of Neurobiology, Nencki Institute, BRAINCITY, Warsaw, Poland
| | - Jette Jakobsen
- National Food Institute, Technical University of Denmark, Kemitorvet, 201, 129, 2800 Kgs. Lyngby, Denmark
| | - Chris Seal
- Human Nutrition and Exercise Research Centre, Public Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Carlo Leifert
- SCU Plant Science, Southern Cross University, Military Rd., Lismore, NSW 2480, Australia; Department of Nutrition, IMB, University of Oslo, 0372 Oslo, Norway
| | - Gillian Butler
- School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
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2
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Folic Acid: Sources, Chemistry, Absorption, Metabolism, Beneficial Effects on Poultry Performance and Health. Vet Med Int 2022; 2022:2163756. [PMID: 36032042 PMCID: PMC9417761 DOI: 10.1155/2022/2163756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/07/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022] Open
Abstract
Recently, there has been an increasing interest in the study of the effects of folic acid (FA) on poultry because it was observed that FA could overcome problems in poultry health while improving its performance. FA, or folate, is a water-soluble B vitamin essential in poultry, so FA intake must be available in the feed. Sources of FA in feed come from plants or animals, and animal sources have relatively more stable FA. The ingested FA will be absorbed in the intestinal lumen and transported into the liver through the blood vessels. Therefore, FA has a positive effect on the performance and health status of poultry. The effect of FA on poultry performance is to increase reproductive tract development, FA content in eggs, hatchability, weight gain, average initial body weight, feed intake, relative growth rate, chick body weight, breast fillet percentage, and reduce FCR and white striping score. At the same time, the effect on poultry health influences antioxidant activities, thyroid hormones, blood biochemicals, anti-inflammatory gene expressions, and immune responses. The present review deals with FA sources, chemistry, absorption, metabolism, effects on performance, and poultry health, which are based on valid basic information.
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3
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Bai Y, Wang R, Yang Y, Li R, Wu X. Folic Acid Absorption Characteristics and Effect on Cecal Microbiota of Laying Hens. Front Vet Sci 2021; 8:720851. [PMID: 34485442 PMCID: PMC8416075 DOI: 10.3389/fvets.2021.720851] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/26/2021] [Indexed: 02/01/2023] Open
Abstract
This experiment was conducted to investigate the characteristics of folic acid (FA) absorption in laying hens and the effect of FA supplementation on cecal microbiota. A total of 432 healthy hens (30-week-old) were randomly assigned to four diets supplemented with FA: 0, 1, 6, and 24 mg/kg of feed for 8 w. Blood, duodenum, jejunum, ileum, cecum, and cecal chyme samples (six samples per treatment) were collected from the hens at the end of the feeding trial. Expression profiles of folate transport and transformation genes in intestine and cecal microbiota were detected. Results showed that serum folate level significantly increased (P < 0.01) with an increase in dietary FA supplementation, reaching a plateau at 6 mg/kg FA supplementation. The expression of FA transport and transformation genes was not affected in the cecum (P > 0.05) by dietary FA supplementation; however, it was affected in the duodenum, jejunum, and ileum and mostly showed a downward trend in treatment groups (P < 0.05). The genes affected include duodenal folate receptor (Folr) and dihydrofolate reductase (Dhfr), jejunal proton-coupled folate transporter (Pcft) and reduced folate carrier (Rfc), and ileal ATP binding cassette subfamily C member (Abcc2), Abcc3, Rfc, Folr, and Dhfr. Furthermore, according to the operational taxonomic unit classification and taxonomic position identification, the cecal microbiota population of the hens was not affected by dietary FA supplementation at the phylum, class, order, family, genus, and species levels (P > 0.05). However, the relative abundance of some microbiota was affected by dietary FA supplementation (P < 0.05). In conclusion, FA transport from the intestinal lumen into enterocytes, and then into the bloodstream, is strictly regulated, which may be associated with the regulation of the expression profiles of genes involved in FA absorption. Pathogenic bacteria decreased in the cecum, especially at 24 mg/kg supplementation, but the beneficial bacteria (Bifidobacteriaceae) decreased at this level, too. Overall, FA supplementation at 6 mg/kg, which was selected for folate-enriched egg production, did not affect the health and metabolism of laying hens negatively.
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Affiliation(s)
- Yan Bai
- Laboratory of Poultry Production, College of Animal Science, Shanxi Agricultural University, Jinzhong, China
| | - Rui Wang
- Laboratory of Poultry Production, College of Animal Science, Shanxi Agricultural University, Jinzhong, China.,Department of Life Sciences, Luliang University, Luliang, China
| | - Yu Yang
- Laboratory of Poultry Production, College of Animal Science, Shanxi Agricultural University, Jinzhong, China
| | - Ruirui Li
- Laboratory of Poultry Production, College of Animal Science, Shanxi Agricultural University, Jinzhong, China
| | - Xiaotian Wu
- Laboratory of Poultry Production, College of Animal Science, Shanxi Agricultural University, Jinzhong, China
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4
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Yang Y, Li J, Gu L, Chang C, Su Y, Liu Y, Yang Y, Dong S. Degradation of 5-methyltetrahydrofolate in model and egg yolk systems and strategies for its stabilization. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:3473-3481. [PMID: 34366464 DOI: 10.1007/s13197-021-04992-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/11/2021] [Accepted: 01/20/2021] [Indexed: 11/29/2022]
Abstract
In this study, the stability of 5-methyltetrahydrofolate (5-MTHF) in the model system and folate-enriched egg yolk and strategies for 5-MTHF stabilization were investigated. The oxygen, temperature and light affect the stability of 5-MTHF in the model system, among which oxygen is the main factor. In thermal pasteurization and spray-drying with normal air media, 5-MTHF is sensitive to oxidation, with the retention rate of blank group only reaching 74.96% ± 1.28%. The addition of vitamin C or vitamin E can protect 5-MTHF in egg yolk from degradation and the latter has a better protective effect. By adding 0.2% (w/v) vitamin E to egg yolk liquid, the retention rate of 5-MTHF during thermal pasteurization and spray-drying with normal air media were 94.16% ± 0.48% and 84.80% ± 0.82% respectively. Additionally, the spray-drying technique with inert gas media (N2) was also an effective method to improve the stability of the 5-MTHF in egg yolk. Our study explored the factors affecting the stability of 5-MTHF in both model systems and egg yolk liquid and provided effective strategies for the protection of 5-MTHF during the processing of egg.
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Affiliation(s)
- Yan Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Junhua Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Luping Gu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Cuihua Chang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Yujie Su
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Yin Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Yanjun Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Shijian Dong
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
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5
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Yu Y, Sun D, Liu Y, Zhao Q, Qin Y, Zhang J. A novel electrochemical paper sensor for low-cost detection of 5-methyltetrahydrofolate in egg yolk. Food Chem 2021; 346:128901. [PMID: 33450645 DOI: 10.1016/j.foodchem.2020.128901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 11/11/2020] [Accepted: 12/12/2020] [Indexed: 11/18/2022]
Abstract
An electrochemical deposition method was used to fabricate a gold nanoflower (AuNF) and carbon nanoparticle (CNP) modified carbon paper (CP) sensor (AuNFs-CNPs/CP) for the low-cost detection of 5-methyltetrahydrofolate (5-mTHF) in egg yolk. AuNF morphology and structures were characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS), revealing nanoflower sizes in the 50 to 200 nm range. AuNFs formed on the sensor were in the Au0. We evaluated 5-mTHF assay performance using cyclic voltammetry, differential pulse voltammetry and chronoamperometry. The AuNFs-CNPs/CP sensor detected 5-mTHF concentrations in the ranges from 1 to 5 mg L-1 and 1-20 μg L-1, with an excellent limit of detection of 1 μg L-1 and good selectivity toward 5-mTHF, when compared to other potentially interfering molecules in samples. The AuNFs-CNPs/CP sensor was also used to detect 5-mTHF in folate-rich, and was found to be twice than that of ordinary egg yolk.
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Affiliation(s)
- Yanan Yu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dandan Sun
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuning Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qingyu Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuchang Qin
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junmin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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6
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Effect of Maternal Folate Deficiency on Growth Performance, Slaughter Performance, and Serum Parameters of Broiler Offspring. J Poult Sci 2020; 57:270-276. [PMID: 33132726 PMCID: PMC7596035 DOI: 10.2141/jpsa.0190125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
In this study, we aimed to investigate the influence of maternal folate deficiency on the production performance and serum parameters of broiler offspring. The 120 healthy female broilers (30-week-old) were randomly allotted into two groups. The groups were either fed a basal diet supplemented with 2.0 mg/kg folate (NF) or basal diet (FD). The experiment lasted 12 weeks, and 120 fertilized eggs were collected from each group for hatching. In total, 80 chicks were selected from each group and fed under the same conditions. No significant difference was observed in the average daily feed intake, average daily gain, and feed to gain ratio of 21- and 42-day-old broilers between NF and FD groups (P>0.05). Moreover, slaughter performance of 21- and 42-day-old broiler offspring were not affected by the maternal FD. The subcutaneous fat thickness at the age of 21 days increased significantly by maternal FD (P<0.01); however, there was no significant difference between the two groups at 42 days of age (P>0.05). Similarly, no significant differences were detected in the intermuscular fat width, lipid percentage in the liver, breast muscle, and thigh muscle between the NF and FD groups at 21- and 42-days of age (P>0.05). Serum concentrations of MTHFR, DHFR, LEP, IGF2, LPL and HCY in the 21-day-old broilers were not affected by maternal FD (P>0.05), but those of HSL at 21 days of age was enhanced by maternal FD (P<0.05). These findings indicated that maternal folate deficiency had no influence on production performance, slaughter performance, most fat traits of 21- and 42-day-old broiler offspring, and serum parameters of 21-day-old broiler offspring except HSL.
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7
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Sun D, Jin Y, Zhao Q, Tang C, Li Y, Wang H, Qin Y, Zhang J. Modified EMR-lipid method combined with HPLC-MS/MS to determine folates in egg yolks from laying hens supplemented with different amounts of folic acid. Food Chem 2020; 337:127767. [PMID: 32799162 DOI: 10.1016/j.foodchem.2020.127767] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 07/24/2020] [Accepted: 08/02/2020] [Indexed: 12/29/2022]
Abstract
Egg yolks are a good source of folates. However, the method for analyzing the naturally occurring folates in egg yolks is complicated and time-consuming. In this study, a simplified pre-treatment method followed by validated HPLC-MS/MS was developed to determine native folates in eggs from laying hens treated with different amounts of folic acid. The modified enhanced matrix removal -lipid method to purify samples showed good performance in lipid elimination, reduction of steps and time savings. According to experimental analysis, yolks contained total folate amounts ranging from 147 to 760 μg/100 g when laying hens' diet was supplemented with folic acid from 0 to 10 mg/kg. Four folate vitamers were detected in egg yolks: 5-methyltetrahydrofolate accounted for 91-98% of total folates, whereas folic acid, 5-formyltetrahydrofolate and 10-formylfolic acid together accounted for 2-9%. Therefore, laying hens efficiently converted folic acid in feed into 5-methyltetrahydrofolate in eggs with little folic acid deposition.
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Affiliation(s)
- Dandan Sun
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Yue Jin
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Qingyu Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Chaohua Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Yi Li
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Hao Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Yuchang Qin
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Junmin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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8
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Bagheri S, Janmohammadi H, Maleki R, Ostadrahimi A, Kianfar R. Laying hen performance, egg quality improved and yolk 5-methyltetrahydrofolate content increased by dietary supplementation of folic acid. ACTA ACUST UNITED AC 2018; 5:130-133. [PMID: 31193894 PMCID: PMC6544570 DOI: 10.1016/j.aninu.2018.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/09/2018] [Accepted: 05/25/2018] [Indexed: 11/28/2022]
Abstract
This study was performed to evaluate the effect of folic acid (FA) on performance, egg quality and yolk 5-methyltetrahydrofolate (5-MTHF) content. A total of 384 Hy-line W36 strain hens from 52 to 58 weeks of age were randomly assigned to 4 groups, and each group received one of following dietary treatments: 0, 5, 10 and 15 mg FA/kg diet. A completely randomized design was used. Egg production percentage, egg mass and egg weight were increased significantly (P < 0.05) and feed conversion ratio (FCR) was reduced significantly (P < 0.05) by increasing FA content in diets. No significant differences were detected among treatments on egg quality except for shell thickness. The dietary supplementations of laying hens diets with FA significantly increased yolk 5-MTHF content (P = 0.02). Overall, these data demonstrate that dietary supplementation with FA raised 5-MTHF content of yolk and productivity of egg production in laying hens.
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Affiliation(s)
- Sattar Bagheri
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, 5166616471, Iran
| | - Hossein Janmohammadi
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, 5166616471, Iran
| | - Ramin Maleki
- Department of Chromatography, Iranian Academic Center for Education, Culture and Research (ACECR), Urmia, Iran
| | - Alireza Ostadrahimi
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614711, Iran
| | - Ruhollah Kianfar
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, 5166616471, Iran
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9
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Abstract
The term folate (vitamin B9) refers to a group of water-soluble compounds that are nutritionally essential for the support of optimal human health and development. Folates participate in numerous one-carbon transfer reactions, including the methylation of important biomolecules (lipids, amino acids, DNA). A deficiency of folate leads to pathological outcomes including anemia and impairments in reproductive health and fetal development. Due to the linkage of impaired folate status with an increased prevalence of neural tube defects (NTDs) in babies, several jurisdictions required the fortification of the food supply with folic acid, a synthetic and stable form of folate. Data from the postfortification era have provided strong evidence for the reduction of NTDs due to folic acid fortification. However, concern is now growing with respect to the amount of synthetic folic acid within the human food supply. Excess folic acid intake has been linked to a masking of vitamin B12 deficiency, and concerns regarding the promotion of folate-sensitive cancers, including colorectal cancer. New strategies to ensure the supply of optimal folate to at-risk populations may be needed, including the use of biofortification approaches, in order to address recent concerns.
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Affiliation(s)
- Nassim Naderi
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada; Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - James D House
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada.
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10
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Altic L, McNulty H, Hoey L, McAnena L, Pentieva K. Validation of Folate-Enriched Eggs as a Functional Food for Improving Folate Intake in Consumers. Nutrients 2016; 8:nu8120777. [PMID: 27916895 PMCID: PMC5188432 DOI: 10.3390/nu8120777] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/15/2016] [Accepted: 11/26/2016] [Indexed: 11/16/2022] Open
Abstract
Functional foods enriched with folate may be beneficial as a means of optimizing folate status in consumers. We recently developed novel eggs enriched with folate through folic acid supplementation of the hen’s feed, but their potential to influence consumer folate status is unknown because the natural folate forms incorporated into the eggs may not necessarily be retained during storage and cooking. This study aimed to determine the stability of natural folates in folate-enriched eggs under typical conditions of storage and cooking. Total folate was determined by microbiological assay following tri-enzyme treatment in folate-enriched eggs and un-enriched (barn and free-range) on the day they were laid, after storage (up to 27 days) and after using four typical cooking methods (boiling, poaching, frying, scrambling) for different durations. On the day of laying, the folate content of enriched eggs was found to be significantly higher than that of un-enriched barn or free-range eggs (mean ± SD; 123.2 ± 12.4 vs. 41.2 ± 2.8 vs. 65.6 ± 18.5 µg/100 g; p < 0.001). Storage at refrigerator and room temperature for periods up to the Best Before date resulted in no significant losses to the folate content of folate-enriched eggs. Furthermore, folate in enriched eggs remained stable when cooked by four typical methods for periods up to the maximum cooking time (e.g., 135 ± 22.5, 133.9 ± 23.0 and 132.5 ± 35.1; p = 0.73, for raw, scrambled for 50 s and scrambled for 2 min, respectively). Thus, natural folates in folate-enriched eggs remain highly stable with little or no losses following storage and cooking. These findings are important because they demonstrate the feasibility of introducing folate-enriched eggs into the diet of consumers as functional foods with enriched folate content. Further studies will confirm their effectiveness in optimizing the biomarker folate status of consumers.
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Affiliation(s)
- Leslie Altic
- Northern Ireland Centre for Food and Health, School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine BT52 1SA, UK.
| | - Helene McNulty
- Northern Ireland Centre for Food and Health, School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine BT52 1SA, UK.
| | - Leane Hoey
- Northern Ireland Centre for Food and Health, School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine BT52 1SA, UK.
| | - Liadhan McAnena
- Northern Ireland Centre for Food and Health, School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine BT52 1SA, UK.
| | - Kristina Pentieva
- Northern Ireland Centre for Food and Health, School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine BT52 1SA, UK.
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11
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Munyaka P, Tactacan G, Jing M, Karmin O, House J, St. Paul M, Sharif S, Rodriguez-Lecompte J. Response of older laying hens to an Escherichia coli lipopolysaccharide challenge when fed diets with or without supplemental folic acid. Poult Sci 2013; 92:105-13. [DOI: 10.3382/ps.2012-02579] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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12
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Scientific Opinion on the safety and efficacy of folic acid as a feed additive for all animal species. EFSA J 2012. [DOI: 10.2903/j.efsa.2012.2674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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13
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Mallard SR, Gray AR, Houghton LA. Periconceptional bread intakes indicate New Zealand's proposed mandatory folic acid fortification program may be outdated: results from a postpartum survey. BMC Pregnancy Childbirth 2012; 12:8. [PMID: 22333513 PMCID: PMC3305569 DOI: 10.1186/1471-2393-12-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Accepted: 02/14/2012] [Indexed: 12/25/2022] Open
Abstract
Background In September 2009, a folic acid fortification mandate (135 μg/100 g bread) was to be implemented in New Zealand. However, due to political and manufacturer objection, fortification was deferred until May 2012. Based on estimates of bread consumption derived from a 1997 nationally representative survey, this program was intended to deliver a mean additional intake of 140 μg folic acid/d to women of childbearing age. Little is known about current bread consumption patterns in this target group. The aim of this study was to assess bread consumption among women prior to and during pregnancy with the intent to estimate periconceptional folic acid intakes that would be derived from bread if mandatory fortification were implemented as currently proposed. Methods A retrospective survey of 723 postpartum women in hospitals and birthing centres across New Zealand was conducted using a self-administered questionnaire on bread intake prior to and during pregnancy and maternal socio-demographic and obstetric characteristics. Results Median bread intake before conception (2 slices/d) was below that of previous data upon which the current fortification proposal was modeled (3-4 slices/d). If mandatory fortification is implemented as proposed, only 31% (95% CI = 24%-37%) of childbearing-age women would attain an additional folic acid intake of ≥ 140 μg/d, with a mean of 119 μg/d (95% CI = 107 μg/d-130 μg/d). Based on these data, a fortification level of 160 μg/100 g bread is required to achieve the targeted mean of 140 μg folic acid/d. Nonetheless, under the current proposal additional folic acid intakes would be greatest among the least advantaged segments of the target population: Pacific and indigenous Māori ethnic groups; those with increased parity, lower income and education; younger and single mothers; and women with unplanned pregnancies. Subgroups predicted to derive less than adequate folic acid intakes from the proposed policy were women of Asian descent and those with a postgraduate education. Conclusions This study provides insight on the ability of a fortification policy to benefit the groups at highest risk of poor folate intakes in a population. However, bread consumption among the target group of childbearing women appears to have declined since the data used in previous dietary modeling were collected. Thus, it seems prudent to re-model dietary folic acid intakes based on more recent national survey data prior to the implementation of a mandatory folic acid fortification policy.
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Tactacan G, Rodriguez-Lecompte J, O K, House J. The adaptive transport of folic acid in the intestine of laying hens with increased supplementation of dietary folic acid. Poult Sci 2012; 91:121-8. [DOI: 10.3382/ps.2011-01711] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Strandler HS, Jastrebova J, Mattisson I. Folate content in Swedish eggs: influence of breed, feed and processing. Eur Food Res Technol 2011. [DOI: 10.1007/s00217-011-1587-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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16
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Zang H, Zhang K, Ding X, Bai S, Hernández JM, Yao B. Effects of different dietary vitamin combinations on the egg quality and vitamin deposition in the whole egg of laying hens. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2011. [DOI: 10.1590/s1516-635x2011000300005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- H Zang
- Sichuan Agricultural University, China
| | - K Zhang
- Sichuan Agricultural University, China
| | - X Ding
- Sichuan Agricultural University, China
| | - S Bai
- Sichuan Agricultural University, China
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Use of FAO food balance sheets to estimate the potential ability of novel folate-enriched eggs to increase the folate supply in European Union countries. Public Health Nutr 2010; 14:551-6. [DOI: 10.1017/s1368980010002417] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Dickson T, Tactacan G, Hebert K, Guenter W, House J. Optimization of folate deposition in eggs through dietary supplementation of folic acid over the entire production cycle of Hy-Line W36, Hy-Line W98, and CV20 laying hens. J APPL POULTRY RES 2010. [DOI: 10.3382/japr.2009-00099] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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19
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Dietary folate and vitamin B12 supplementation and consequent vitamin deposition in chicken eggs. Trop Anim Health Prod 2009; 41:1583-9. [DOI: 10.1007/s11250-009-9350-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2008] [Accepted: 04/07/2009] [Indexed: 11/26/2022]
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