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Oxidation of d‐Limonene in Presence of Low Density Polyethylene
Author(s) -
KUTTY V.,
BRADDOCK R. J.,
SADLER G. D.
Publication year - 1994
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1994.tb06977.x
Subject(s) - low density polyethylene , limonene , chemistry , carvone , polyethylene , hydrolysis , kinetics , nuclear chemistry , chromatography , organic chemistry , essential oil , physics , quantum mechanics
Headspace oxygen contents of sodium citrate‐water buffers containing d‐limonene with and without low density polyethylene (LDPE) were measured on a weekly basis for 10 wk. d‐Limonene was readily sorbed into LDPE. Results indicated first order kinetics for limonene oxidation. GC/MS analyses determined production of limonene oxidation end‐products, including d‐carvone, carveol, limonene oxide, perrilaldehyde and linalool, as well as α‐terpineol, a hydrolysis product. Headspace oxygen contents of the d‐limonene/buffer (control) samples were lower thau that of the d‐limonene/buffer/LDPE samples, suggesting a higher oxidation rate in the control than in LDPE. Oxidation rate constants and half‐lives were 5.9 × 10 ‐3 log(%O 2 ) wk ‐1 , t 1/2 = 116 wk for control and 1.2 × 10 ‐3 log(%O 2 ) wk ‐1 , t 1/2 = 580 wk for LDPE samples, respectively.