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J Agric Food Chem

Title:		Effect of packaging materials and storage on major volatile compounds in three Australian native herbs
Author(s):		Chaliha M; Cusack A; Currie M; Sultanbawa Y; Smyth H;
Address:		"Innovative Food Solutions and Technologies, Department of Employment, Economic Development and Innovation , P.O. Box 156, Archerfield, Queensland 4108, Australia"
Journal Title:		J Agric Food Chem
Year:		2013
Volume:		20130606
Issue:		24
Page Number:		5738 - 5745
DOI:		10.1021/jf400845t
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Lemon myrtle, anise myrtle, and Tasmanian pepper leaf are commercial Australian native herbs with a high volatile or essential oil content. Packaging of the herbs in high- or low-density polyethylene (HDPE and LDPE) has proven to be ineffective in preventing a significant loss of volatile components on storage. This study investigates and compares the effectiveness of alternate high-barrier property packaging materials, namely, polyvinylidene chloride coated polyethylene terephthalate/casted polypropylene (PVDC coated PET/CPP) and polyethylene terephthalate/polyethylene terephthalate/aluminum foil/linear low-density polyethylene (PET/PET/Foil/LLDPE), in prevention of volatile compound loss from the three native herbs stored at ambient temperature for 6 months. Concentrations of major volatiles were monitored using gas chromatography-mass spectrometry (GC-MS) techniques. After 6 months of storage, the greatest loss of volatiles from lemon myrtle was observed in traditional LDPE packaging (87% loss) followed by storage in PVDC coated PET/CPP (58% loss) and PET/PET/Foil/LLDPE (loss of 23%). The volatile loss from anise myrtle and Tasmanian pepper leaf stored in PVDC coated PET/CPP and PET/PET/Foil/LLDPE packaging was <30%. This study clearly indicates the importance of selecting the correct packaging material to retain the quality of herbs with high volatile content"
Keywords:		"Australia Condiments/analysis Diet/ethnology Food Handling *Food Packaging Food Quality *Food Storage Food, Preserved/analysis Humans Myrtaceae/*chemistry/metabolism Plant Leaves/*chemistry/metabolism Plant Stems/*chemistry/metabolism Volatile Organic Com;"
Notes:		"MedlineChaliha, Mridusmita Cusack, Andrew Currie, Margaret Sultanbawa, Yasmina Smyth, Heather eng Comparative Study Research Support, Non-U.S. Gov't 2013/05/21 J Agric Food Chem. 2013 Jun 19; 61(24):5738-45. doi: 10.1021/jf400845t. Epub 2013 Jun 6"