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http://dx.doi.org/10.3746/jkfn.2004.33.10.1715

Quality Characteristics of Unshiu Orange and Pear Packaged with Paper Incorporated with Antimicrobial Agents  

Park, Woo-Po (마산대학 식품과학부)
Jung, Jun-Ho (경상대학교 식품공학과·농업생명과학 연구원)
Cho, Sung-Hwan (경상대학교 식품공학과·농업생명과학 연구원)
Kim, Chul-Hwan (경상대학교 산림과학부)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.33, no.10, 2004 , pp. 1715-1719 More about this Journal
Abstract
In order to help the preservation of the unshiu orange and pear, antimicrobial paper incorporating grapefruit seed extract and zeolite was applied to pack fruits. Unshiu orange was packed in a box (24${\times}$24${\times}$22 cm) attached with antimicrobial paper and then stored respectively at l$0^{\circ}C$. Pears were wrapped individually before storage at l$0^{\circ}C$. During the storage, weight loss, pH, total acidity, soluble solid content, microbial load and decay were measured as quality indices. Steady pH increase in unshiu orange was observed to slightly decrease total acidity during the storage with little difference between the packaging treatments. The microbial loads of total aerobic bacteria, and yeast/mold counts were suppressed during storage by the antimicrobial paper packaging, which also contributed to reducing the decayed unshiu orange. Limited reduction of total aerobic bacteria and yeast/mold counts was observed only for initial storage period for the pears wrapped with 9 and 12% antimicrobial agent-added papers. Antimicrobial paper was useful for the reduction of microbial load in unshiu orange and pear without other quality deterioration.
Keywords
antimicrobial paper; shelf-life; unshiu orange; pear;
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  • Reference
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