20년 이상 장기저장된 홍삼의 이화학적 특성변화 및 품질안정성

This study was investigated the changes of quality stability and physicochemical characteristics of the Korean red ginsengs stored for a long times over 20 years. The Korean red ginsengs were stored for 4 to 22 years in canned packaging with polypropylene film and wooden box at room temperatures. The unusal phenomena such as discoloration and pin hole in packaging were not observed. General bacteria showed the vlaues of below 100 CFU/g, coliform groups and molds were not found in any samples stored for 22 year. Any samples also were not detected in mycotoxins. The contents of moisture, ash and crude saponin were the levels of 10.6~11.1%, 3.8~4.2% and 4.1~4.7% during the whole storage periods, respectively. The contents of maltol, which has been known as characteristic flavour and antioxidant of Korean red ginseng, showed remarkably increasing tendency from 0.10 mg/g for 4 years to 2.53 mg/g for 22 years during the storage. The contents of AFG (arginyl-fructosyl-glucose), arginine and free sugar were slightly decreased. Acidic polysaccharide and ginsenoside were not changed significantly during the storage periods. The contents of acidic polysaccharide and total ginsenosides were the 75.1~76.3 mg/g and 15.1~16.6 mg/g, respectively. The sums of ginsenoside-Rg1,-Rb1 and -Rg3s were the ranges of 9.3~9.9 mg/g and PD (ginsenoside-Rb1, -Rb2,-Rc,-Rd,-Rg3s,-Rg3r)/PT (ginsenoside-Rg1,-Rg2,-Re,-Rf,-Rh1) saponin ratios were the levels of 1.4~1.5. These results suggest that Korean red ginsengs stored for long periods show relatively stable quaility stabilities and not significantly changed the contents of ginsenoside and polysaccharide during the storage up to 22 years.