PMID- 11417691
OWN - NLM
STAT- MEDLINE
DCOM- 20011101
LR  - 20161124
IS  - 0022-0302 (Print)
IS  - 0022-0302 (Linking)
VI  - 84
IP  - 6
DP  - 2001 Jun
TI  - Effectiveness of poly(ethylene terephthalate) and high-density polyethylene in 
      protection of milk flavor.
PG  - 1341-7
AB  - The development of certain off-flavors in whole milk (3.25% milk fat) as related 
      to packaging material [glass, high-density polyethylene (HDPE), amber 
      poly(ethylene terephthalate) (PETE), clear PETE, and clear PETE-UV] were 
      evaluated after exposure to fluorescent light (1100 to 1300 lx) for 18 d at 4 
      degrees C. Control samples packaged and stored under identical conditions were 
      wrapped in foil to prevent light exposure. Selected flavor compounds in milk were 
      measured analytically on d 0, 7, 14, and 18 of storage, while intensities of 
      "oxidation," "acetaldehyde," and "lacks freshness" off-flavors were determined by 
      sensory analysis at the same intervals. In light-exposed samples, oxidation 
      off-flavor was significantly lower when packaged in amber PETE versus other 
      containers. Milk packaged in HDPE containers showed a significantly higher level 
      of oxidation off-flavor than milk packaged in PETE-UV containers but not higher 
      than clear PETE or glass containers. No significant difference in acetaldehyde 
      off-flavor was found between package material treatments (exposed or protected). 
      Acetaldehyde concentration never exceeded flavor threshold levels, regardless of 
      packaging material. Amber and PETE-UV materials proved to be a competitive 
      packaging choice for milk in preserving fresh milk flavor.
FAU - van Aardt, M
AU  - van Aardt M
AD  - Department of Food Science and Technology, Virginia Polytechnic Institute and 
      State University, Blacksburg 24061, USA. mvanaard@vt.edu
FAU - Duncan, S E
AU  - Duncan SE
FAU - Marcy, J E
AU  - Marcy JE
FAU - Long, T E
AU  - Long TE
FAU - Hackney, C R
AU  - Hackney CR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Dairy Sci
JT  - Journal of dairy science
JID - 2985126R
RN  - 0 (Polyethylene Terephthalates)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - Animals
MH  - Chemical Phenomena
MH  - Chemistry, Physical
MH  - Fluorescence
MH  - Food Packaging/*instrumentation/methods
MH  - Food Preservation
MH  - Food Technology
MH  - Humans
MH  - Light
MH  - Milk/chemistry/*radiation effects/standards
MH  - Oxidation-Reduction
MH  - Polyethylene
MH  - Polyethylene Terephthalates
MH  - Taste
MH  - Taste Threshold
MH  - Time Factors
EDAT- 2001/06/22 10:00
MHDA- 2001/11/03 10:01
CRDT- 2001/06/22 10:00
PHST- 2001/06/22 10:00 [pubmed]
PHST- 2001/11/03 10:01 [medline]
PHST- 2001/06/22 10:00 [entrez]
AID - S0022-0302(01)70164-6 [pii]
AID - 10.3168/jds.S0022-0302(01)70164-6 [doi]
PST - ppublish
SO  - J Dairy Sci. 2001 Jun;84(6):1341-7. doi: 10.3168/jds.S0022-0302(01)70164-6.