Zanthoxylum schinifolium is an important short-term income species and a useful resource with various physiological activities. In this study, the distribution and characteristics of seed-rich individuals of Z. schinifolium trees were analyzed. Seed-rich individuals were selected from three regions in consideration of seed yield and growth factors. As a result of the leaf shape survey, the length and width of the leaves were shorter in Jeju and longer in Geochang and Hadong compared to the average. There were very large differences in seed production between individuals within the Z. schinifolium group. The amount of seeds was higher in Jeju and Hadong than in Geochang. As a result of analyzing the correlation between the seven morphological characteristics, the overall correlation coefficient was in the range of -0.910 ~ 0.933. Total seed mass (TS) and seed weight (SW) showed a strong positive (+) correlation. As a result of the principal component analysis, it was classified into two categories. The first principal component showed a high correlation in the order of total seed weight and total seed amount, and the second principal component showed a high correlation with seed length and tree height. As a result of comparing seed production for two years, it was found that there was no change in production. As a result of examining seed viability using the TTC method, all of Z. schinifolium seeds showed more than 90% vitality. It is judged that the above results will serve as basic data for the development of a new variety of seed-rich Z. schinifolium trees.

Background: Sancho (Zanthoxylum schinifolium Siebold and Zucc) oil is used as a traditional medicinal material to treat severs stomach inflammation and as a diuretic. This study was carried out to investigate the effect of addition of antioxidants and blended oil the storage stability and safety of the biomaterial. Methods and Results: The effects of temperature and light on sancho oil were investigated, and the ability of antioxidants in preventing rancidity of the oil was discovered. Under fluorescent light and in darkness, the acidity of the oil was much lower than that under direct sunlight. The addition of antioxidants decreased the acid value of sancho oil; the antioxidant that showed the best results in this regard was 0.5% propolis. The acid value of canola oil, which had the lowest acid value compared with that of other oils, and blended oil, containing 5% canola oil in sancho oil, decreased by 5.5% and 15%, respectively. About one acid value decrease was observed for every 1% increase in blending with canola oil. As the concentration of canola oil increased, the viscosity and the elightness (L valu) of sancho oil increased slightly, while the blueness (b value) decreased. Conclusions: The results of this study may contribute to ensuring food safety during preservation and the industrialization of the presevation of sancho oil.

Background: Sancho oil extracted from Zanthoxylum schinifolium (Siebold & Zucc) is a useful edible oil that has been in use for a long time, but it is known to be susceptible to rancidity. Sancho oil purification can remove impurities to prevent rancidity. This study was performed in order to improve the quality of sancho oil and enhance its availability throughout the purification process. Methods and Results: Sancho oil extracted in Hadong, Korea was refined via the degumming and deoxygenation processes, following which we examined the changes in the polyphenol content, fatty acid content and antioxidant activity of the oil. Acetic acid was effective for deoxygenation of sancho oil and 2 N NaOH was effective for its deoxidation. The polyphenol content and antioxidant activity were reduced by the purification process. Saturated fatty acids contents did not vary with the degumming and deoxygenation processes, however the content of unsaturated fatty acids were slightly reduced. Conclusions: This study suggests that the process of sancho oil purification used in this study will contribute to the increased use and storage of sancho oil.

산초나무는 잎에서 총 52개, 열매에서 48개 향기 성분이 동정되었으며, 4개 지역에서 잎의 주요 공통 성분은 (E)-2-hexenal, α-pinene, (Z)-ocimene+limonene, estragole, germacrene-d 이였으며, 열매에서는 estragole이였다. Hexanal, (Z)-3-hexenol, (E)-2-hexenal, n-hexanol 성분은 잎에서만 검출되었고, undecanone 성분은 열매에서만 나타났다. 지역간 큰 차이를 보인 잎의 정유성분은 hexanal, azulene이었고, 열매에서는 (Z)-ocimene+limonene이였다. 초피나무 잎에서 총 30개, 열매에서 27개 향기 성분이 동정되었으며, 잎의 주요 공통 성분은 백양사와 내장사지역의 성분이 α-pinene, β-phellandrene, 1,8-cineole, citronellal이였고, 통도사 지역은 (Z)-3-hexenol, (E)-2-hexenal, α-pinene, myrcene이 주요성분 이였다. 백양사와 내장사에서 채취한 열매의 공통 성분은 myrcene, (Z)-ocimene+limonene, β-phellandrene이였고, 통도사에서는 β-phellandrene, citronellal, geranyl acetate이 주성분이였다.

산초에서 시기에 따라 차이가 크게 나타나는 주요성분은 hexanal, (E)-2-hexenal, α-pinene, myrcene, (Z)-ocimene+limonene, (E)-β-ocimene, linalool, citronellal, estragole 이었으며, 특히 estragole은 모든 지역에서 공통적으로 나타났다. 초피에서 시기에 따라 차이를 보이는 성분은 hexanal, (Z)-3-hexenol, n-hexanol, α-pinene, limonene, 1,8-cineole, citronellal, estragole, citronellol 이었으며, 이중 (Z)-3-hexenol α-pinene, limonene, citronellal이 모든 지역에서 공통으로 나타났다. 수목원에서 월별 변화를 보이는 성분을 관찰한 결과. 산초는 α-pinene, myrcene, (Z)-3-hexenyl acetate, α-phellandrene, (Z)-ocimene+limonene, β-phellandrene, linalool, geranyl acetate 이였으며, 초피는 hexanal, (Z)-3-hexenol, (E)-2-hexenal, n-hexanol, α-pinene, (Z)-ocimene, limonene, citronellal, geranyl acetate, β-caryophyllene 이였다. 그러나 지역별 채집한 개체에 나타났던 estragole이 수목원에 식재된 산초나무 잎에서 미량으로만 존재한 이유는 열매를 맺지 못할 정도의 어린나무였기 때문이라고 생각되어 estragole 성분은 열매를 맺는 시기에 증가되는 성분이라 사료되었다.

간편하고 효과적인 정유성분 분석을 위해 SPME fiber를 선별하고 산초와 초피의 개체 정유성분 분석에 적합한 SPME fiber를 찾고자 실험한 결과는 다음과 같다. 단일물질별 흡착율은 PDMS, PDMS/DVB, CAR/PDMS 가 우수했다. 10종의 단일물질 표준품 혼합액 흡착 실험에서 직접주입 했을때와 가장 유사한 결과를 보인 것은 PDMS, PDMS/DVB fiber이였다. 최종 선발된 PDMS와 PDMS/DVB를 이용하여 24종의 단일물질 표준품 흔합액 흡착과 직접주입시를 비교한 결과 이들 간에 차이가 없었다. 또한 GC주입구의 split ratio별 성분의 검출에서도 차이가 없었다. 흡착시간이 길어질수록 분자량이 큰 성분의 흡착율이 높아지는 경향을 보였지만, 직접주입시와 비교해 볼 때 적절한 흡착시간은 30-40분이였다. SDE 추출물을 이용한 산초와 초피나무 개체 정유성분 분석에는 산초와 초피 모두 PDMS/DVB가 흡착시간 30-40분에서 분자량이 큰 sesquiterpene류까지 흡착하는데 유리하였다.