Studies of oxygen uptake on O2 scavengers ­prepared from different iron-containing ­parent substances

• Published in: Packaging technology & science Vol. 15; no. 2; pp. 75 - 81
• Main Authors: Foltynowicz, Zenon, Kozak, Wojciech, Fiedorow, Ryszard
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.03.2002; Wiley
• Subjects: active packaging; Biological and medical sciences; Food industries; Fundamental and applied biological sciences. Psychology; General aspects; Handling, storage, packaging, transport; iron compounds; oxygen scavengers; oxygen uptake; TPR; Oxygen; Temperature; Iron Compounds; Iron Oxalate; Conditioning; Processing quality; Iron Hydroxides; Active packaging; Radical scavenger; Optimization; Free radical
• ISSN: 0894-3214; 1099-1522
• DOI: 10.1002/pts.570

Temperature‐programmed reduction (TPR) measurements were performed for iron oxalates, iron(III) hydroxide (both pure and with additives) and iron(II, III) oxide. On the ground of TPR curves, reduction temperatures of the iron‐containing parent substances were chosen followed by oxygen uptake determination. Comparison of oxygen uptakes points to the use of Fe(OH)3 and Fe3O4 as more advantageous than that of iron oxalates. Co‐precipitation from a mixed solution of iron and manganese salts results in a product which is more resistant to particle agglomeration at elevated temperatures than that obtained by­precipitation from solution of iron salt alone. Copyright © 2002 John­Wiley & Sons, Ltd.