caa a22 4500 397569408 CHVBK 20180308164837.0 cr unu---uuuuu 161202e199603 xx s 000 0 eng 10.3382/ps.0750417 doi (NATIONALLICENCE)oxford-10.3382/ps.0750417 Evaluation of Mechanical and Barrier Properties of Protein Coatings on Shell Eggs [Elektronische Daten] [Y. C. WONG, T. J. HERALD, K. A. HACHMEISTER] Development of a coating material for shell eggs is important because of economic loss from shell damage and decline in interior egg quality. Studies were done to evaluate the interior quality (moisture loss, Haugh unit, and pH) and shell properties (strength, thickness, morphology, and color) of uncoated eggs and eggs coated with mineral oil or with solutions of egg albumen, soy protein isolate, wheat gluten, or corn zein. Coated shell eggs were evaluated during 1, 3, 5, 7, 10, 14, 21, and 28 d of storage at room temperature. Eggshells coated with corn zein solution exhibited the least moisture loss and the strongest shell strength. Light microscopy depicted a more compact structure of eggshells coated with corn zein solution. Shell eggs coated with corn zein exhibited the lowest moisture loss and maintained a higher Haugh unit than eggs coated with other treatments. Results also indicated that the protein-based coatings, corn zein and wheat gluten, added strength to the shell, which, in turn, served as a protective barrier. © 1996 Poultry Science Association, Inc. Processing and Products nationallicence shell egg nationallicence protein coating nationallicence barrier properties nationallicence mechanical properties nationallicence light microscopy nationallicence WONG Y. C. aut HERALD T. J. 2To whom correspondence should be addressed. aut HACHMEISTER K. A. aut Poultry Science Oxford University Press 75/3(1996-03), 417-422 0032-5791 75:3<417 1996 75 ps https://doi.org/10.3382/ps.0750417 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3382/ps.0750417 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- WONG Y. C. aut NATIONALLICENCE 700 1- HERALD T. J. 2To whom correspondence should be addressed aut NATIONALLICENCE 700 1- HACHMEISTER K. A. aut NATIONALLICENCE 773 0- Poultry Science Oxford University Press 75/3(1996-03), 417-422 0032-5791 75:3<417 1996 75 ps Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford