PMID- 25660743 OWN - NLM STAT- MEDLINE DCOM- 20160329 LR - 20181202 IS - 1525-3198 (Electronic) IS - 0022-0302 (Linking) VI - 98 IP - 4 DP - 2015 Apr TI - Packaging modifications for protecting flavor of extended-shelf-life milk from light. PG - 2205-14 LID - S0022-0302(15)00075-2 [pii] LID - 10.3168/jds.2014-8857 [doi] AB - The effectiveness of titanium dioxide (TiO2)-loaded high-density polyethylene (HDPE) to reduce light-induced oxidation of extended-shelf-life milk (2% total fat) was studied. The objective was to determine differences over time in sensory quality, vitamin retention, and oxidative chemistry as a function of packaging and retail light exposure duration. Effectiveness of packaging for protecting milk quality was assessed by sensory evaluation (triangle tests, untrained panel), changes in volatile compounds, thiobarbituric reactive substances (TBARS), and riboflavin concentration. Milk (2%) was stored in HDPE packages consisting of TiO2 at 3 levels (low: 0.6%; medium: 1.3%; high: 4.3%) at 3 degrees C for up to 43 d. Light-protected (translucent, foil-wrapped) and light-exposed (translucent) HDPE packages served as controls. The high TiO2-HDPE package provided protection similar to light-protected control package through d 22 of light exposure, with less consistent performance by the medium TiO2 package. The TBARS increased in all treatments during storage. Under the experimental conditions used, a TBARS value of 1.3mg/L could be considered the limiting sensory threshold for differentiating oxidized milk from light-protected milk. Riboflavin concentration decreased 10.5% in the light-protected control and 28.5% in the high TiO2 packaged milk past 29 d of light exposure, but losses were greater than 40% for all other packages. The high TiO2 package protected riboflavin concentration from degradation and controlled aldehyde concentration throughout the test period. CI - Copyright (c) 2015 American Dairy Science Association. Published by Elsevier Inc. All rights reserved. FAU - Johnson, D S AU - Johnson DS AD - Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg 24061. FAU - Duncan, S E AU - Duncan SE AD - Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg 24061. Electronic address: duncans@vt.edu. FAU - Bianchi, L M AU - Bianchi LM AD - Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg 24061. FAU - Chang, H H AU - Chang HH AD - Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg 24061. FAU - Eigel, W N AU - Eigel WN AD - Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg 24061. FAU - O'Keefe, S F AU - O'Keefe SF AD - Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg 24061. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150207 PL - United States TA - J Dairy Sci JT - Journal of dairy science JID - 2985126R RN - 0 (Dietary Fats) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - 0 (Volatile Organic Compounds) RN - 15FIX9V2JP (titanium dioxide) RN - 9002-88-4 (Polyethylene) RN - D1JT611TNE (Titanium) RN - TLM2976OFR (Riboflavin) SB - IM MH - Animals MH - Dietary Fats/analysis MH - Food Handling MH - Food Microbiology MH - Food Packaging/*methods MH - Food Preservation/*methods MH - Food Storage MH - Gas Chromatography-Mass Spectrometry MH - Light/*adverse effects MH - Milk/*chemistry/microbiology MH - Oxidation-Reduction MH - Polyethylene/chemistry MH - Quality Control MH - Riboflavin/analysis MH - *Taste MH - Thiobarbituric Acid Reactive Substances/analysis MH - Titanium/chemistry MH - Volatile Organic Compounds OTO - NOTNLM OT - extended-shelf-life milk OT - oxidation OT - riboflavin OT - sensory EDAT- 2015/02/11 06:00 MHDA- 2016/03/30 06:00 CRDT- 2015/02/10 06:00 PHST- 2014/09/15 00:00 [received] PHST- 2014/12/18 00:00 [accepted] PHST- 2015/02/10 06:00 [entrez] PHST- 2015/02/11 06:00 [pubmed] PHST- 2016/03/30 06:00 [medline] AID - S0022-0302(15)00075-2 [pii] AID - 10.3168/jds.2014-8857 [doi] PST - ppublish SO - J Dairy Sci. 2015 Apr;98(4):2205-14. doi: 10.3168/jds.2014-8857. Epub 2015 Feb 7.