510
Index
Plant origin proteins, 277-300
cottonseed protein films, 288-9 1
grain sorghum protein, 295
peanut protein, 291-2
pea protein, 293
pistachio protein, 294-5
rice protein, 292-3
soy protein, 2814
wheat gluten, 284-8
zein, 277-8 1
Plant volatiles, 84
Plasma treatment, 53
Plasticizers, 55, 174,2434,279,285, 330,
403-33
definition and purpose, 404
external plasticizer requirements, 409-1 0
food system applications, 426-7
internal and external plasticization, 404-8
models, 41 1-14
Couchman and Karasz equation, 412
Gordon and Taylor equation, 41 1-12
polymer molecular weight, 408-9
theories of plasticization, 41&14
free volume theory, 4 1 &I1
gel theory, 410
types of, 404-10
Plastic packaging materials, 487-8
see also individual materials
Pochan-Beatty-Hinman equation, 413
Pollock avocados, 73
Poly(2-vinylpyridine), surface energy, 53
Poly(4-methyl- 1 -pentene), surface energy, 53
Polyethylene glycol, 406
Polyethylene maleic anhydride, 287
Polyethylene, surface energy, 53
Polyethylene terephthalate, 389
bottles, 67
oxygen permeable, 129-30
permeability, 33
recycling, 68
surface adhesion, 534
surface energy, 53
Polyhydroxyalcanoates, 264
Polymers, 88
molecular weight, 408-9
see also individual polymers
Polymethyl methacrylate, surface energy, 53
Polyolefin bags, 67
Polyol humectants, 65
Polypropylene, 45
barrier properties, 39
permeability, 33
Polysaccharides, 46,84,242,416-19
mechanical properties, 417,419
moisture sorption, 419
permeability properties, 4 17,4 18
Polystyrene
permeability, 33
surface energy, 53
Polytetrafluoroethylene,
45
Polyvinylidine chloride
barrier properties, 39
permeability, 33
Potassium permanganate scavengers, 73
Poultry
delay of microbial spoilage, 2 16
modified atmosphere packaging, 164,
470
pH, 214
preservation
appearance, 2 10
desirable eating qualities, 2 12
preservative packaging, 204-26
Prepared foods, modified atmosphere
packaging, 4724
Preservative packaging, 204-26
delay of microbial spoilage, 213-1 8
desirable eating qualities, 21 1-13
meat appearance, 207-1 1
microbiological safety, 2 18-1 9
see also individual types
Probiotics, 84,85-6,95
Processed foods
active packaging, 71-2,468
lipid-based filmslcoatings, 377-8
Process engineering limitations, 66
Production
conditions for, 3-4
edible filmslcoatings, 255-7
1,2-Propanediol, 55
1,3-Propanediol, 55
Propionicin, 85
Propylene glycol, 406
Propylene glycol alginate, 283
Protein-based films and coatings, 419-25
see also
Edible filmslcoatings
Proteins, 46,242
Pseudomonas,
165,168,213,215,216