• 한국콘텐츠학회지
• /
• 제13권3호
• /
• pp.46-51
• /
• 2015

• Preventive Nutrition and Food Science
• /
• 제2권4호
• /
• pp.304-309
• /
• 1997

Chemical compositions of petals of Chrysanthemum spp. were determined to renew its interest as a food material. The moisture contents of wild Chrysanthemum boreale and holticulturized Chrysanthemum morifolium were 11.7% and 11.0%. The proximate chemical ompositions were 6.1% and 11.7% in protein, 3.7% and 5.2% in ash, 11.1% and 12.8% in reducing sugar, of C. boreale and C. morifolium, respectively. Free sugars were mainly composed of fructose, glucose and sucrose. In fatty acid composition, the ratios of saturated to unsaturated fatty acids were 1.2:1 and 3.0:1, respectively. The amino acids determined were found 0.18 and 0.26 in the ratio of essential to total amino acids in each sample. Major elements of Chrysanthemum petals were Ca, K, Fe, Mg and Na, but the contents of Ca and Fe were more than twice higher in C. boreale than c. morifolium, Major volatile flavor components were 28.22% of epi-bicyclophellandrene and 24.55% of camphor in C. boreale, and 14.24% of 4-methyl-1-(10methylethyl)-3-cyclhexen-1-ol, 10.74% of camphor and 7.64% of 1,8-cineol in C. morifolium.

• KSBB Journal
• /
• 제11권3호
• /
• pp.323-328
• /
• 1996

Diterpenoid 생합성의 중요한 전구체인 geranyl­g geranyl pyrophosphate의 공급을 위해 외부에서 geraniol을 넣어 주었을 때 taxol을 포함한 일부 taxane의 생산이 증대 됨을 알 수 있었다. 또한 투여 시기와 투여량에 따라 결과가 크게 변화하였다. Camphor와 menthol은 taxol과 같은 terpenoid 계열의 물질이지만 외부에서 공급하였을 때에는 taxol 생산을 증대시키는 효과는 없었다. 외부에서 인위적으로 taxol과 cephalomannine, baccatin ill 를 공급했을 때 모든 경우에서 taxal 생산은 자극받지 않았으며 taxal을 공급했을 경우에는 bacca tin ill 의 생산이, cephalamannine을 공급했을 경우에는 7 -epl- 1 Q-deacetyltaxol의 생산이, 그리고 baccatin ill을 공급했을 경우에는 10-deacetyltaxol의 생산이 각각 가장 많이 중대하였다.

• Applied Biological Chemistry
• /
• 제37권1호
• /
• pp.37-42
• /
• 1994

청호(Artemisia apiaceae Herba)를 simultanuous distillation 및 steam distillation으로 추출하여 정유의 관능적 특성을 조사하고, GC 및 GC-MS로 분석하여 34개 성분을 확인하였다. 정유의 관능적 특성은 camphorous하면서 herbal하였고, 정유의 steam distillation에 의한 수율은 0.23%, simultanuous distillation extraction에 의한 수율은 0.37%이었다. 확인된 34개 성분 중에서 camphene, camphor, borneol and caryophv-llene 등이 많이 함유되어 있었다. 또 정유를 11개로 분획한 후 좋은 향기 특성을 갖고 있는 5개의 분획물만을 성분 분석하였으며 특히 분획물 F-5와 F-6은 기능성 약리효능을 얻을 수 있는 의료용 향료로 개발가능성을 보였다.

• 한국미생물·생명공학회지
• /
• 제17권1호
• /
• pp.51-55
• /
• 1989

TOL 플라스미드와 NAH 플라스미드는 n-알칸을 자화하는 P. putida KCTC 2405에 접합에 의해 각각의 이동은 가능하나 두 플라스미드는 불화합성에 기인하여 본 균주내에 공존할 수 없었다. TOL plasmid에서 불화합성 체계는 남겨두고 tol 유전자만 이 CAM plasmid내로 transposition 되어 형성된 CAM::TOL* 플라스미드는 NAH 플라스미드와 P. putida KCTC 2405에서 공존할 수 있어 m-toluate, naphthalene, camphor 및 n-alkane(C8-C24)를 분해할 수 있는 P. putida 3SK 균주를 육종하였다. CAM::TOL* 플라스미드는 선택성 배지에서 안정하였으나 비선택성 배지에서는 불안정하였다.

• 한국분말재료학회지
• /
• 제21권5호
• /
• pp.366-370
• /
• 2014

The present study demonstrates the effect of solidification condition on the pore structure in freeze drying process using the slurries of CuO/sublimable vehicles. Camphene and Camphor-45 wt% naphthalene based slurries with 14 vol% CuO powder were frozen into a mold at $-25^{\circ}C$, followed by sublimation at room temperature. The green bodies were hydrogen-reduced and sintered at $500^{\circ}C$ for 1 h. The porous Cu specimen, frozen the CuO/camphene slurry into the heated mold of the upper part, showed large pores with unidirectional pore channels and small pores in their internal wall. Also, it was observed that the size of large pores was decreasing near the bottom part of specimen. The change of pore structure depending on the freezing condition was explained by the nucleation behavior of camphene crystals and rearrangement of solid powders during solidification. In case of porous Cu prepared from CuO/Camphor-naphthalene system, the pore structure exhibited plate shape as a replica of the original structure of crystallized vehicles with hypereutectic composition.

• 한국식품조리과학회지
• /
• 제26권6호
• /
• pp.840-847
• /
• 2010

In this study, we identified the volatile compounds of Artemisia princeps Pampan. cv. ssajuari (ssajuarissuk) essential oils and analyzed changes in the contents of volatile compounds under four different storage conditions, such as exposure to air at $20^{\circ}C$ and $40^{\circ}C$. Sixty-five volatile compounds consisting of 6 monoterpene hydrocarbons, 23 oxygenated monoterpenes, 16 sesquiterpene hydrocarbons, 6 oxygenated sesquiterpenes, 1 diterpene, 6 benzene derivatives, and 7 non-isoprenoid compounds were identified on the basis of their mass spectra characteristics and retention indices from original ssajuarissuk essential oils. Identified compounds constituted 90.56% of the total peak area. Borneol (10.29%) was the most abundant compound in the original ssajuarissuk essential oils, followed by 1,8-cineole (9.06%), viridiflorol (8.99%), spathulenol (8.73%), $\alpha$-thujone (5.28%), and camphor (4.39%). After six months storage at $40^{\circ}C$ with the cap opened for 3 min everyday, the total amount of volatile compounds in essential oil as determined by the percentage peak area decreased by 84.93%. The total levels of cis-sabinene hydrate, camphor, 4-terpineol, humulene oxide, $\beta$-caryophyllene oxide, and caryophyllene alcohol increased significantly. For ssajuarissuk essential oils stored under experimental conditions, changes in the contents of volatile compounds in essential oils were accelerated by temperature and contact with the atmosphere.

• 한국분말재료학회지
• /
• 제27권3호
• /
• pp.198-202
• /
• 2020

The effect of sublimable vehicles on the pore structure of Cu fabricated by freeze drying is investigated. The 5 vol% CuO-dispersed slurries with camphene and various camphor-naphthalene compositions are frozen in a Teflon mold at -25℃, followed by sublimation at room temperature. After hydrogen reduction at 300℃ and sintering at 600 ℃, the green bodies of CuO are completely converted to Cu with various pore structures. The sintered samples prepared using CuO/camphene slurries show large pores that are aligned parallel to the sublimable vehicle growth direction. In addition, a dense microstructure is observed in the bottom section of the specimen where the solidification heat was released, owing to the difference in the solidification behavior of the camphene crystals. The porous Cu shows different pore structures, such as dendritic, rod-like, and plate shaped, depending on the composition of the camphornaphthalene system. The change in pore structure is explained by the crystal growth behavior of primary camphor and eutectic and primary naphthalene.

• 한국식품영양과학회지
• /
• 제23권2호
• /
• pp.261-267
• /
• 1994

한국에서 자생하고 있는 쑥(A. asiatica nakai)을 이용하여 전래의 녹차제조법에 따라 덖음쑥차를 제조하였다. 생쑥과 덖음쑥차의 휘발성 향기성분을 Tenax trap으로 포집한 다음, GC-MS로 분리, 동정한 결과 58가지의 화합물이 동정되었다. 이들 휘발성 화합물 중 향의 특징으로 보아 쑥향과 유사한 11가지 향기성분은 benzaldehyde, pinene, myrcene, cineole, 2-pyrrlidinone, camphor, thujone, 1-acetylpiperidine, caryophyllene, coumarin 그리고 famesol이었으며, 이들의 혼합물은 4월에 채취한 쑥의 향기를 그대로 재현할 수 있었으므로 이들 11가지 화합물을 덖음쑥차의 품질을 측정할 수 있는지 표가 되는 화합물로 생각되었다.

• Natural Product Sciences
• /
• 제8권4호
• /
• pp.133-136
• /
• 2002

GC-MS data on the volatile oil (CS-oil) of Chrysanthemum sibiricum herbs led to the identification of 2-methoxythioanisol, (+)-camphor, geraniol, citral, thymol, eugenol, ${\beta}-caryophyllene$ oxide, ${\beta}-caryophyllene$, ${\beta}-eudesmol$, juniper camphor together with an unknown substance using the mass spectral library and literature data. CS-oil exhibited significant cytotoxicities on HL-60 $(IC_{50}\;12.5\;{\mu}g/ml)$ cell and mild on HepG-2 cell $(IC_{50}\;102.4\;{\mu}g/ml)$, though the antioxidant ability was found not to be potent $(IC_{50}\;97.2\;{\mu}g/ml)$. However, the component eugenol showed potent antioxidant ability but mild cytotoxicity. Methyleugenol with no phenolic OH showed less potent cytotoxic and antioxidative properties than eugenol suggesting that phenolic OH plays an important role for the cytotoxic and antioxidant abilities. The oil-pretreatment prevented lipid peroxidation induced by bromobenzene in the rat. Therefore, it was demonstrated that CS-oil could be a cytotoxic agent with antioxidant properties.