• Korean Journal of Head & Neck Oncology
• /
• v.26 no.2
• /
• pp.256-258
• /
• 2010

Although liposarcoma is the second most common soft tissue sarcoma in adults, the incidence of liposarcoma in the head and neck is low. The histologic nature of liposarcoma is correlated clinically with treatment outcome, but histologic classification of liposarcoma is controversial. Well-differentiated liposarcoma and atypical lipoma are pathologic synonyms because they are identical lesions both morphologically and karyotypically. They represent the lowest grade lesions in the spectrum of liposarcoma. The terms "atypical lipoma" were introduced specifically to describe well-differentiated liposarcomas occurring in the extremities, because of their better prognosis in comparison with their retroperitoneal counterparts. We present 1 case of atypical lipomatous tumor of the neck.

• Korean Journal of Medicinal Crop Science
• /
• v.16 no.5
• /
• pp.301-305
• /
• 2008

Forty Ricinus communis collections were obtained from RDA National Agrobiodiversity Center for knowing the possibility of the use as a bio-diesel possibility crop. These are analysis results about crude fat and fatty acid. Gas chromatogram of seed collections analysis showed 6 peaks and retention time of ricinoleic acid was about 17.1 minute. Average oil content of collections were ranged from 44.6 to 49.4% and the difference was between maximum 52.5% and minimum 41.4%. Fatty acid composition was almost unsaturated fatty acid of 97.6% and saturated fatty acid showed low content of 2.4%. Ricinoleic acid was 87.3% and the content of oleic acid and linoleic acid in fatty acid was 4.6%, and 5.2%, respectively. The content of palmitic acid and stearic acid was about 1% and the difference was insignificant. The content of linolenic acid was extremely low as 0.6%.

• Journal of Korean Society of Forest Science
• /
• v.79 no.4
• /
• pp.345-351
• /
• 1990

The seeds of Korean pine, Pinus koraiensis, had been used as one of edible fruits for long time, but its chemical analysis of the nutrient components was extremely limited. The purpose of this study is to analyze the content of chemical components of Korean pine seeds. The results obtained are as follows : 1. In general analysis of Korean pine seeds, moisture is 4.4%, crude protein 18.3%, crude fat 67.3%, crude fiber 4.7%, ash 2.2%, and nitrogen-free extract 3.4%, respectively, 2. The Korean pine seed contained 18 different kinds of amino acid : lysine, histidine, arginine, aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine, cysteic acid, and tryptophan. The glutamic acid is highest content among 18 kinds of amino acid. 3. The Korean pine seed contains all the essential amino acids such as arginine, histidine, lysine, threonine, valine, methionine, isoleucine, leucine, phenylalanine, and tryptophan. 4. The Korean pine seed contains 13 different kinds of fatty acid such as myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachidic acid, 9-icosenoic acid, 9, 11-icosenoic acid, 8, 11, 14-icosatrienoic acid, and tn-o unknown substances. Also it contains all the essential fatty acids as linoleic acid and linolenic acid. The linoleic acid is highest content among 13 kinds of fatty acid. 5. The Korean pine seed contained 5 different kind., of vitamin such as vitamin A, vitamin $B_1$, vitamin $B_2$, vitamin E and niacin. The content of vitamin E is the largest among 5 kinds of vitamin.

• Journal of Life Science
• /
• v.9 no.6
• /
• pp.671-676
• /
• 1999

RAPD analysis using random primers were tried to evaluate the genetic variation and diversity of the nine garlic cultivars including two foreign varieties. Thirty-two primers out of 70 primers screened were used to amplify genomic DNA of garlic cultivars using polymerase chain reaction(PCR). Among a total of 151 bands amplified by 32 primers, 125 polymorphic bands were subjected to analysis for genetic relationship of garlic cultivars. The estimated size of amplified PCR products were in the range of 932 to 4,060 base pairs. Nine garlic cultivars were classified into two groups, such as group I corresponded to Changnyung and Hungary cultivars, and group II, Namdo, Sandong from China, Yecheon, Euiseong, Youngweol, Danyang, Jeongsun cultivars, with the genetic distance value of 0.271. The major ecological types of garlics, so called southern and northern types, was grouped in the genetic distance value of 0.200. The results presented in this study suggest that RAPD analysis are likely to be useful for identification of cultivars and evaluation of genetic origin in garlics.

• Applied Biological Chemistry
• /
• v.41 no.1
• /
• pp.84-88
• /
• 1998

Composition of volatile flavor components of chestnut flower sand honey were investigated by GC and GC-MS. A total of 64 components including 14 aromatic compounds, 13 hydrocarbons, 7 fatty acids, 4 terpenes, 12 oxygenated hydrocarbons, and 7 misellaneous compounds and a total 41 components including 7 aromatic compounds, 16 hydrocarbons, 12 fatty acids, 1 terpene, 2 oxygenated hydrocarbons, and 3 misellaneous compounds were identified from total volatile concentrates of chestnut flower and honey respectively. The main components of flower volatile were 2-phenyl ethyl alcohol, 1-phenyl ethyl alcohol and benzyl alcohol which comprise 49.02% of this volatiles The main components of flower volatile were 2-phenyl ethyl alcohol, 1-phenyl ethyl alcohol and benzyl alcohol which comprise 49.02% of this volatiles. Aromatic compounds such as 2-phenyl ethyl alcohol, benzyl alcohol, 1-phenyl ethyl alcohol, 1-(2-aminophenyl) ethanone act as major contributor to the characteristic honey-like flavor of chestnut honey.

• Korean Journal of Environmental Biology
• /
• v.34 no.1
• /
• pp.30-36
• /
• 2016

We investigated the diversity pattern of spring moths across two regions of South Korea, Yongin city (middle part) and Muan gun (southern part) and the effects of climatic variables on moth species richness and abundance. Moths were weekly collected using UV light trap in April from 2013 to 2015. Climatic factors included growth degree day with base temperature 8 (GDD8), average temperature, precipitation, duration of sunshine, wind speed, and snow cover. The climatic effects on moth species richness and abundance were analyzed by short (0~3 weeks before collecting) and long (4~12 weeks before collecting) time periods, respectively. The diversity of spring moths showed the similar pattern of species composition at family level. However the dominant family differed depending on the region: Geometridae at middle part and Noctuidae at southern part. In addition the dominant species of Noctuidae occurred early in April and that of Geometridae moths occurred later in April. Three short-term climatic factors, GDD8, duration of sunshine, and precipitation one week before collecting were significant on moth species richness and abundance, while only one long-term climatic factor, temperature four weeks before collecting was significantly affected on moth species richness. We found that both Geometridae and Noctuidae were dominant in spring moth fauna across South Korea and they were different in the dominance and flying time in April. The occurrences of spring moths were largely affected by warmness and precipitation. The current global warming could affect the occurrence of spring moths and this should be monitored consistently.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.12 no.4
• /
• pp.357-363
• /
• 1983

An attempt was made to investigate the lipid contents and fatty acid compositions of the roots (rhizome, epidermis, pith, cortex, branch root, fine root) and aerial parts (seed, flesh of seed, leaf, stem) of ginseng plant. Total contents of free and bound lipids in nine parts ranged 0.91 to 3.48%, those of the seeds were 15.08%. Fourteen even-numbered and 4 odd-numbered fatty acids were identified and quantified by GLC. The major fatty acids in each part were linoleic, palmitic, oleic, and linolenic acid. Fatty acid composition of different parts was varied significantly. Fatty acid composition of ginseng seeds was notably different from those of other parts in plant; the amount of oleic and linoleic acids (51.21 and 37.46%) were higher than those of the other parts. The unsaturated fatty acid content of the free lipid in seed, pith, and cortex were higher than those of the other parts in plant.

• Journal of Chest Surgery
• /
• v.16 no.3
• /
• pp.375-380
• /
• 1983

The lipomatous of the mediastinum are fairly uncommon tumors. Since 1971, two patients with proven mediastinal lipoma and one primary liposarcoma of the mediastinum have been treated at the Seoul National University Hospital. This report reviews our experience with the review of literature. Case 1.: A 3 year old body revealed a huge round homogenous mass density in the posterior mediastinum in routine chest X-ray. The tumor mass, lipoma, was successfully removed and postoperative course was uneventful. Cases 2.: An asymptomatic 24 year old male was operated on with the preoperative diagnosis of mediastinal lipoma. His preoperative chest X-ray and CT films showed a huge anterior to middle mediastinal tumor, right, with fat density. There is no postoperative problem after successful removal of the tumor mass. Case 3. : A 24 year old female was hospitalized with the complaints of cough and chest pain. A mediastinal mass was removed, which proved to be a liposarcoma on pathologic examination. About one year later, she was found to have recurrent liposarcoma in the right chest area at the OPD follow-up. She was lost to follow-up since then.

• Animal Systematics, Evolution and Diversity
• /
• v.6 no.1
• /
• pp.123-144
• /
• 1990

한국산 사축해면류의 분류학적 연구를 위해 1988년부터 1989년 10월까지 삼면연안과 14개 도서지방에서 채집된 표본과 그 동안 한남대학교 생물학과에 미해결종으로 보관되어 있던 표본들을 동정, 분류한 결과 4과 8속 15종이 분류되었다. 이중 10종은 한국 미기록종이고 5종은 신종으로 밝혀졌다. 한국 미기록종과 신종에 대하여만 특기 또는 기재와 도판을 첨가하였다.

• The Journal of the Korean bone and joint tumor society
• /
• v.17 no.2
• /
• pp.95-99
• /
• 2011

The development of different entities of soft tissue sarcoma in one patient is rare. It usually affects head and neck or abdominal region, whereas those affecting the extremities are much rarer. We describe a patient with double primary presentation of liposarcoma and Ewing's sarcoma in extremity. This case implies that sarcoma patients are at increased risk of a second malignancy, and this implies a need to search for occult tumors during follow up.