The hen's egg yolk: a source of biologically active substances

Hartmann, C.; Wilhelmson, Martin

doi:10.1079/wps20010003

Cited by 32 publications

(16 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Apart from its function in avian reproduction, egg yolk is widely used in food and cosmetics industries as a binding agent, emulsifier, and natural antioxidant. Therapeutic applications have also been suggested [5][6][7][8], and the yolk Igs have found widespread use in life sciences. Some egg proteins may also become an important raw material for the production of bioactive peptides [7,8].…”

Section: Introductionmentioning

confidence: 99%

The chicken egg yolk plasma and granule proteomes

2007

View full text Add to dashboard Cite

Using 1-D SDS-PAGE, LC-MS/MS, and MS(3), we identified 119 proteins from chicken egg yolk, 86 of which were not identified in yolk previously. Proteins were roughly quantitated by calculating their exponentially modified protein abundance index (emPAI) to classify them as major or minor yolk components, and to estimate their distribution between yolk plasma and yolk granular fraction. The proteins with highest abundance were serum albumin, the vitellogenin cleavage products, apovitellenins, IgY, ovalbumin, and 12 kDa serum protein with cross-reactivity to beta2-microglobulin. In addition yolk contained many other serum and egg white proteins, the proteases nothepsin and thrombin, numerous protease inhibitors, and antioxidative enzymes, such as superoxide dismutase and glutathione peroxidase. Among the moderately abundant proteins were two alpha2-macroglobulin-like proteins different from egg white alpha2-macroglobulin, and the major biotin-binding protein of yolk. An unexpected identification was that of the eggshell matrix protein ovocleidin-116, which was previously thought to be eggshell-specific. The list of chicken egg yolk proteins provided in this report is by far the most comprehensive at present and may serve as a starting point for the characterization of less well-known yolk proteins.

show abstract

Section: Introductionmentioning

confidence: 99%

The chicken egg yolk plasma and granule proteomes

2007

View full text Add to dashboard Cite

show abstract

“…Although the albumen is a major indicator of internal egg quality; air cell size, albumen and yolk quality and the presence of blood or meat spots in the eggs are the parameters, which determines the internal egg quality [13,14] . Egg yolk is still an important source for nutrients, and also used in non-food purposes like leather processing and a source of biologically active substances [15] .…”

Section: Introductionmentioning

confidence: 99%

Determination of Phenotypic Correlations Between Internal and External Quality Traits of Guinea Fowl Eggs

Alkan¹,

Karslı²,

Galiç³

et al. 2013

Kafkas Univ Vet Fak Derg

View full text Add to dashboard Cite

Values of egg weight, egg length, egg width, eggshape index, eggshell weight, eggshell ratio, eggshell thickness, eggshell surface area, unit surface area and egg volume were determined as 40.14 g, 49.47 mm, 37.89 mm, 0.76%, 6.48 g, 16%, 0.54 mm, 65.69 cm 2 , 0.11 g/cm 2 and 38.21 cm 3 , respectively. In addition, values of yolk weight, yolk height, yolk width, yolk index, yolk ratio, albumen height, albumen width, albumen length, albumen weight, albumen index, yolk/albumen ratio and haugh unit were found as 13.58 g, 14.99 mm, 40.64 mm, 37%, 33%, 4.77 mm, 62.97 mm, 80.07 mm, 21.62 g, 6.7%, 68% and 74.97%, respectively. According to the results determined in this study, all most all external quality traits of the egg were changed at the significant levels depending on the change occurred in the egg weight. The results indicated that egg weight influences external egg quality traits of quinea fowl. The positive correlations obtained among the egg quality traits indicated that they can be improved phenotypically through selection. Keywords: Guinea fowl, Egg weight, Egg quality, Phenotypic correlation Beç Tavuğu Yumurtalarında İç ve Dış Kalite Özellikleri Arasındaki Fenotipik Korelasyonların Belirlenmesi ÖzetBu çalışmada Beç tavuğu yumurtalarında iç ve dış kalite özellikleri ile bu özellikler arasındaki fenotipik korelasyonların belirlenmesi amaçlanmıştır. Bu amaçla toplam 100 adet Beç tavuğu yumurtası kullanılmıştır. Araştırma Akdeniz Üniversitesi Ziraat Fakültesi Zootekni Bölümü Hayvancılık Birimi'inde yürütülmüştür. Yumurta ağırlığı, yumurta uzunluğu, yumurta eni, şekil indeksi, kabuk ağırlığı, kabuk oranı, kabuk kalınlığı, kabuk yüzey alanı, birim yüzey alanı ve yumurta hacmi sırasıyla 40.14 g, 49.47 mm, 37.89 mm, %0.76, 6.48 g, %16, 0.54 mm, 65.69 cm 2 , 0.11 g/cm 2 ve 38.21 cm 3 olarak bulunmuştur. Ayrıca, sarı ağırlığı, sarı yüksekliği, sarı genişliği, sarı indeksi, sarı oranı, ak yüksekliği, ak genişliği, ak uzunluğu, ak ağırlığı, ak indeksi, sarı/ak oranı ve haugh birimi de sırasıyla 13.58 g, 14.99 mm, 40.64 mm, %37, %33, 4.77 mm, 62.97 mm, 80.07 mm, 21.62 g, %6.7, %68 ve %74.97 olarak hesaplanmıştır. Yumurta ağırlığındaki değişmeye bağlı olarak yumurtanın dış kalite özellikleri önemli derecede değişmiş ve yumurta ağırlığı dış kalite özelliklerini etkilemiştir. Yumurta kalite özellikleri arasında ortaya çıkan önemli korelasyonlar bu özelliklerin fenotipik olarak seleksiyonla iyileştirilebileceğini göstermiştir.

show abstract

“…The albumen is a major indicator of internal egg quality; air cell size, albumen and yolk quality and the presence of blood or meat spots in the eggs are the parameters, which determine the internal egg quality (De Ketelaere et al 2002;Khurshid et al 2003;Sarica et al 2012). Egg yolk is still an important source of nutrients, and also used in non-food purpose like leather processing and a source of biologically active substances (Hartmann & Wilhemson 2001).…”

Section: Introductionmentioning

confidence: 99%

Effects of egg weight on egg quality traits in partridge (Alectoris Chukar)

Alkan

Galiç

Karslı

et al. 2014

Journal of Applied Animal Research

View full text Add to dashboard Cite

In this study, the aim was to determine the internal and external quality traits of partridge (Alectoris chukar) eggs as well as the Pearson correlation coefficients among these traits. For use in this research, a total of 200 partridge eggs were collected over three sequential days. The partridges were housed at the Research Unit of Animal Science, Faculty of Agriculture, University of Akdeniz. The eggs were categorized according to weight and classified as ≤19.0 g, 19.1-20.0 g, 20.1-21.0 g and ≥21.1 g. Average eggshell thickness was highest in groups of 20.1-21.0 g and ≥21.1 g. In contrast, lowest eggshell weight was calculated in groups of ≤19.0 g and 19.1-20.0 g. In this study, egg shape index, yolk index, Haugh unit, albumen width and unit surface shell weight were not significantly affected by egg weight groups. Whereas egg length, egg width, shell weight, shell thickness, shell surface area, egg volume, yolk weight, yolk height, yolk width, yolk ratio, albumen height, albumen length, albumen weight, albumen index, albumen ratio and yolk/albumen ratio were significantly affected by egg weight groups. At the same time, there was found a significant relationship amongst the internal and external egg quality traits.

show abstract

The hen's egg yolk: a source of biologically active substances

Cited by 32 publications

References 63 publications

The chicken egg yolk plasma and granule proteomes

The chicken egg yolk plasma and granule proteomes

Determination of Phenotypic Correlations Between Internal and External Quality Traits of Guinea Fowl Eggs

Effects of egg weight on egg quality traits in partridge (Alectoris Chukar)

Contact Info

Product

Resources

About