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KMID : 1007520100190010193
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Food Science and Biotechnology
2010 Volume.19 No. 1 p.193 ~ p.199
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Maintaining Quality of Wild Vegetables (Aster glehni and Aruncus dioicus var. kamtschaticus) from Ulleungdo(Island), Korea by Modified Atmosphere Packaging
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Chung Hun-Sik
Choi Mal-Gum
Moon Kwang-Deog
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Abstract
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Wild vegetables, Aster glehni and Aruncus dioicus var. kamtschaticus, produced from Ulleungdo (Island), Korea were packaged with 30 μm polypropylene (PP), 30 μm antifogging oriented polypropylene (A-OPP), 30 μm microperforated antifogging oriented polypropylene (MiA-OPP), 30 μm macroperforated low density polyethylene (Ma-LDPE), and 20 μm macroperforated high density polyethylene (Ma-HDPE), stored at 4, 10, and 20oC. Concentrations of O2 and CO2 in the packages were not modified by Ma-LDPE and Ma-HDPE. Weight loss was retarded by PP, A-OPP, MiA-OPP, especially as storage temperature decreased. Soluble solids were not affected by packaging materials. pH slightly decreased in LDPE and Ma-HDPE. Appearance, color, and overall acceptability of both vegetables stored at 4oC in PP or MiA-OPP showed the highest sensory score. These results suggest that packaging with PP or MiA-OPP films and storage at 4oC could be a useful method to maintain quality of the wild vegetables.
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KEYWORD
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wild vegetable, quality, modified atmosphere packaging, storage
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