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ARS Home Northeast Area Wyndmoor, Pennsylvania Eastern Regional Research Center Food Safety and Intervention Technologies Research Research Publications at this Location





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Title:   Author  item
                                            Jin, Zhonglinitem
                                            Liu, Linshu
  Submitted to: Trade Journal Publication
                                    Publication Type: Trade Journal
                                    Publication Acceptance Date: 3/15/2009
                                    Publication  Date: 4/1/2009
                                    Citation: Jin, Z.T., Liu, L.S. 2009. Use of Biopolymers in Antimicrobial Food Packaging. Bioplastics Magazine. 4:30-31.Interpretive Summary:
                                Technical Abstract: Recent outbreaks of foodborne illness and food recalls continue to push for innovative ways to inhibit microbial growth in foods.  As an additional hurdle to food processes, antimicrobial food packaging can play an important role in reducing the risk of pathogen contamination of processed foods.  In this study, biopolymers (pectin and polylactic acid) containing nisin were used to develop composite food packaging films and the potential use of these films as antimicrobial food packaging to inhibit cells of pathogenic Listeria monocytogenes was evaluated. Microbial growth medium (pH 6.9), orange juice (pH 3.8), and liquid egg white (pH 8.7) were selected for this study to represent neutral, high acid and low acid foods, respectively. The results showed that pectin/polylactic acid films incorporating nisin inhibit pathogenic L. monocytogenes in orange juice or liquid egg. The use of pectin and PLA in combination with nisin has a great potential as antimicrobial food packaging to reduce post process growth of foodborne pathogens.


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