재배더덕의 포장.저장 조건에 따른 이화학적 특성 변화

Abstract

-This study was conducted to investigate the changes in some physicochemical properties, including pH,moisture and ash content, Ca, Na, Mg, K, crude saponin and codonoposide, of cultivated Codonopsis lanceolata, whichwere packed with woven polypropylene(WP) or low density polyethylene(LDPE, thickness 0.04 mm) bag and stored at 4or 20 for 30 days. pH of the juice of fresh Codonopsis lanceolata was 5.3 and decreased significantly duringstorage. Storage temperature exerted more influence upon the content of moisture and ash than package materials. Theconcentration of Ca, Mg, Na and K were 427.3mg, 203.4mg, 10.2mg, and 619mg per 100g dry matter respectively. Thecontents of Ca and Na were not changed significantly, but the contents of Mg and K were decreased during roomtemperature storage. It was revealed that the juices of stored sample had darkened and redness and yellowness weresomewhat deeper than those of fresh sample. 1g of the cultivated Codonopsis lanceolata had 29.3mg of crude saponinand 3.78mg of codonoposide, and the changes of them during storage at various conditions were not significant.Key words -Codonopsis lanceolata, Physicochemical properties, Package materials, Storage conditions- 60 -