본 연구는 고농도 CO2 환경에 순응한 호접란 유묘의 CO2 교환 및 생장 반응을 조사하기 위해 실시하였다. 환경 조절이 가능한 식물생장상에서 6주령 호접란 ‘만천홍’을 27주 동안 야간에 각각 400 ± 100, 900 ± 100, 1500 ± 100, 2100 ± 100μmol CO2·mol-1 농도로 유지해주었다. 처리에 앞서 발달해 있었던 최상위 성숙엽으로 측정한 야간 중 CO2 흡수량은 900μmol CO2·mol-1 처리구에서 가장 높았고, 이어 2100, 1500, 400μmol CO2·mol-1 순으로 높았다. 그러나 처리 7주 이후 새로 발달한 성숙엽에서 측정한 결과, 2100μmol CO2·mol-1 처리구가 야간 중 가장 높은 CO2 흡수량을 보였으며, CO2의 흡수량은 처리 CO2 농도가 높아질수록 증가하는 경향을 보였다. 생장 반응에서는 최상위 성숙엽의 엽장, 엽폭 및 생체량은 900, 1500, 2100μmol CO2·mol-1 등 고농도 처리구에서 감소하였으나, 신엽 발달은 고농도 CO2 처리 하에서 촉진되었다. 이러한 결과들은 호접란 유묘의 높은 CO2 환경에 대한 적응이 CO2 흡수와 신엽 발달을 증진시킬 수 있다는 것을 보여준다. 그러나 900μmol CO2·mol-1 이상의 고농도에서는 잎의 생장과 생체량이 다소 줄어드는 경향이 있어 이에 대한 원인구명 등 추가적인 연구가 필요하다.

장내 세균성 질환의 치료와 관련된 한약재를 선정하고 장내 유해세균에 대한 항균활성을 염기적 broth system에서 조사하였다. 목향과 육두구 물추출물은 6종의 시험균(Eubacterium limonsum ATCC 10825, Escherichia coli ATCC 25922, Bacteroides fragilis KCTC 5013, Clostridium perfringens ATCC 3627, Staphylococcus aureus KFCC 11764 및 Salmonella typhimurium ATCC 14028)의 생육을 2, 000㎍/ml 농도에서도 억제하지 못하였다. 빈랑의 물추출물은 100㎍/ml농도에서 시험균들에 대한 항균활성이 없었으나, 1, 000, 2, 000㎍/ml 농도에서는 Eubacterium limonsum ATCC 10825, Bacteroides fragilis KCTC 5013, Clostridium perfringens ATCC 3627 and Salmonella typhimurium ATCC 14028에 대해 뛰어난 항균활성을 보였다. 가자 물추출물은 시험균주 모두에 대해 항균활성을 나타내었으며, 특히 2, 000㎍/ml농도에서 Escherichia coli ATCC 25922와 Staphylococcus aureus KFCC 11764는 거의 생육하지 못하였다.

The study was carried out to compare the factors of overall preference in the sensory test to the analyzation of some compositions in the 7 kinds of wild grasses : An Evening Primerose, a Spiderworts, the flower of a Convolvulus, So Ru Jang Yi, Shoe Bi Rum. O Yi Pul, Jip Sean Na Mul. Results were summaried as follows: 1. The Tannin contents of fresh sample and cooked samples were determined as 0.27∼2.4g%, 0.25∼1.43g% respectively. The largest amount of fresh samples was contained in a Shoe Bi Rum. The smallest amount of them was in an Evening Primerose. The highest level of cooked samples was found in a Shoe Bi Rum, and the lowest was in the O Yi Pul. These results were similar to sensory test. 2. The free amino acid contents of 2 kinds of samples were determined as 25.15∼179.5㎎%, 1.86∼13.6㎎% respectively. The largest amount of sweet taste of them was O Yi Pul and So Ru Jaeng Yi respectively. But So Ru Jaeng Yi is not appeared sweety becase this have much tannin. The smallest amount of sweet taste was a Spiderwort. The highest level of bitter taste was So Ru Jaeng Yi the and lowest was Jip Sean Na Mul. Among of them Jip Sean Na Mul is similar to organoleptic test but So Ru Jaeng Yi is not strong bitter taste in sensory evaluation. The highest level of sour taste of cooked samples was So Ru Jaeng Yi and the lowest of them was Shoe Bi Rum. 3. The reducing sugar contents of fresh sample and cooked samples were determined as 1.80∼4.9g%, 1.84∼3.57g% respectivley. The largest of fresh samples were So Ru Jaeng Yi and the lowest was Shoe Bi Rum. The highest of cooked samples were an Evening Primerose and the lowest was a Convolvulus. Among of these results an Evening Primerose was not similar to sensory test because it has much other components. 4. The level of chlorophyll of fresh samples and cooked smaples were determined as 11.7∼39㎎%, 11.3∼40.3㎎% respectively. The highest of fresh samples was Shoe Bi Rum and the lowest was Jip Sean Na Mul. The largest of cooked samples was So Ru Jaeng Yi and the lowest was a Jip Sean Na Mul. Amoung of these results the Jip Sean Na Mul was not similar to the sensory test and the other samples

Background : Despite the presence of various bioactive compounds in ginseng, there is lack of study on the variations of bioactive compounds in ginseng according to the cultivation of soil and the applied fertilizer types (or amount). Therefore, this study aims to examine the variations of 37 fatty acids (FA) and 8 vitamin E (Vit-E) vitamers in 6-year-old ginseng root cultivated in different soil types with different fertilizers regimes. Methods and Results : The profiling of 37 FAs and 8 Vit-E vitamers in 6-year-old ginseng roots was measured by gas chromatography coupled with a flame ionization detector, and then these results were statistically analyzed with chemometrics. The FA and Vit-E content in ginseng roots varied significantly with respect to soil cultivation conditions due to organic fertilizer types and amounts used. Unsaturated FA in ginseng is approximately 2.7 fold higher than the saturated FA. Linoleic, palmitic, and oleic acids were the most abundant FAs found in the ginseng roots. Also, the major Vit-E vitamer found in ginseng root is α -tocopherol. In particular, the application of rice straw compost or food waste fertilizer was increased to create nutritionally-desirable FAs and bioactive Vit-E in ginseng root. In addition, phytonutrient profiling coupled with chemometrics can be used to discriminate the cultivation conditions of ginseng. Conclusion : This preliminary study extends our understanding about the variations of FA and Vit-E in ginseng root depending on cultivation conditions. Hence, these results can be useful as basic information for reliable ginseng production containing high amounts of phytonutrients in a paddy-converted field.