| 초록 |
Background : This study was conducted to determine out the effect of storage temperature on the quality of fresh ginseng (Panax ginseng C. A. Meyer) during distribution. Methods and Results : Fresh ginseng was washed, packed in $30{ mu}m$ low density polyethylene (LDPE) film, then stored at 0, -2 and $-4^{ circ}C$ . After 4 weeks of storage, ginseng was then stored at $5^{ circ}C$ , as a simulation of the distribution process. Ginseng stored at $-4^{ circ}C$ showed higher respiration rate, ethylene production and electrolyte conductivity during the distribution phase than those stored at 0 and $-2^{ circ}C$ . Decay and browning rate rapidly increased following 3 weeks of distribution in samples stored $-4^{ circ}C$ . However ginseng stored $-2^{ circ}C$ , which is below freezing point, for 4 weeks did not show the physiological change or quality deterioration. Ginsenoside contents decreased during storage for all plant, but did not differ significantly between storage temperatures. Conclusions : Storage at temperatures below $-2^{ circ}C$ can negatively affect respiratory characteristics and electrolyte leakage and increase quality deterioration and decay rates during distribution. |
