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Changes of Physicochemical Properties of Cultivated Codonopsis lanceolata Stored at Various Storage Conditions  

Oh Hae-Sook (Dept. of Food and Nutrtion, Sangji University)
Kim Jun-Ho (Dept. of Chemistry, Sangji University)
Choi Moo-Young (Dept. of Food and Nutrtion, Sangji University)
Publication Information
Korean Journal of Plant Resources / v.19, no.1, 2006 , pp. 59-67 More about this Journal
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, which were packed with woven polypropylene(WP) or low density polyethylene(LDPE, thickness 0.04 mm) bag and stored at $4^{\circ}C\;or\;20^{\circ}C$ for 30 days. pH of the juice of fresh Codonopsis lanceolata was 5.3 and decreased significantly during storage. Storage temperature exerted more influence upon the content of moisture and ash than package materials. The concentration of Ca, Mg, Na and K were 427.3mg, 203.4mg, 10.2mg, and 619mg per 100g dry matter respectively. The contents of Ca and Na were not changed significantly, but the contents of Mg and K were decreased during room temperature storage. It was revealed that the juices of stored sample had darkened and redness and yellowness were somewhat deeper than those of fresh sample. 1g of the cultivated Codonopsis lanceolata had 29.3mg of crude saponin and 3.78mg of codonoposide, and the changes of them during storage at various conditions were not significant.
Keywords
Codonopsis lanceolata; Physicochemical properties; Package materials; Storage conditions;
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