Milk Gel Structure. I. Application of Scanning Electron Microscopy to Milk and Other Food Gels

作者: Mikoslav Kalab , V.R. Harwalkar

DOI: 10.3168/JDS.S0022-0302(73)85263-4

关键词: Casein micellesScanning electron microscopeEgg whiteChemistryGelatinChromatographyProtein particlesFood scienceAnimal Science and ZoologyGenetics

摘要: Abstract The structure of a variety food gels was studied by scanning electron microscopy. By stereoscopic technique, pictures heat-induced, acid-heat, and renneted milk gels, whey tofu, coagulated egg white, gelatin were obtained. Because the unique various modifications fixation, mounting, viewing introduced. Heat-induced consisted casein micelles linked together short, thin fibers. Such fibers not in acid-heat which composed expanded protein particles closely attached to each other forming thick chains networks. Renneted contained high proportion long fibers, fused together. Whey sizes, occurrence fiber-like material low. Tofu white had similar structures consisting many corpuscular Warped sheets found gels.

参考文章(14)
Hans C. Freeman, Crystal structures of metal-peptide complexes. Advances in Protein Chemistry. ,vol. 22, pp. 257- 424 ,(1967) , 10.1016/S0065-3233(08)60043-1
R.J. Carroll, M.P. Thompson, P. Melnychyn, Gelation of Concentrated Skimmilk: Electron Microscopic Study Journal of Dairy Science. ,vol. 54, pp. 1245- 1252 ,(1971) , 10.3168/JDS.S0022-0302(71)86015-0
R.J. Carroll, M.P. Thompson, G.C. Nutting, Glutaraldehyde Fixation of Casein Micelles for Electron Microscopy Journal of Dairy Science. ,vol. 51, pp. 1903- 1908 ,(1968) , 10.3168/JDS.S0022-0302(68)87309-6
Miloslav Kalab, Peter W. Voisey, Douglas B. Emmons, Heat-Induced Milk Gels. II. Preparation of Gels and Measurement of Firmness Journal of Dairy Science. ,vol. 54, pp. 178- 181 ,(1971) , 10.3168/JDS.S0022-0302(71)85808-3
P. W. Board, Joan M. Bain, D. W. Gove, J. T. Mullett, Structural changes in whole milk during the production of sterile concentrates: an electron microscope study. Journal of Dairy Research. ,vol. 37, pp. 513- 522 ,(1970) , 10.1017/S0022029900013558
Dyson Rose, J.R. Colvin, Appearance and Size of Micelles from Bovine Milk Journal of Dairy Science. ,vol. 49, pp. 1091- 1097 ,(1966) , 10.3168/JDS.S0022-0302(66)88023-2
H.K. Wilson, U. Yoshino, E.O. Herreid, Size of Protein Particles in Ultrahigh-Temperature Sterilized Milk as Related to Concentration Journal of Dairy Science. ,vol. 44, pp. 1836- 1842 ,(1961) , 10.3168/JDS.S0022-0302(61)89974-8
H.K. Wilson, E.O. Herreid, Sedimentation of Reconstituted Concentrated Milks Journal of Dairy Science. ,vol. 43, pp. 1751- 1757 ,(1960) , 10.3168/JDS.S0022-0302(60)90410-0
D.R. Emmons, B.C. Beckett, N.W. Tape, Frozen and Freeze-Dried Cottage Cheese Canadian Institute of Food Technology Journal. ,vol. 1, pp. 8- 10 ,(1968) , 10.1016/S0008-3860(68)74442-1
Miloslav Kalab, V.R. Harwalkar, J.A.G. Larose, Peter W. Voisey, Heat-Induced Milk Gels. VI. Effect of Temperature on Firmness in Comparison with Some Common Food Gels Journal of Dairy Science. ,vol. 56, pp. 998- 1003 ,(1973) , 10.3168/JDS.S0022-0302(73)85296-8