• Journal of the East Asian Society of Dietary Life
• /
• v.14 no.4
• /
• pp.348-354
• /
• 2004

중국, 수단, 인도 및 파키스탄에서 생산된 참깨(각 10종)의 조지방 함량, 지방산 조성, 세사민, 세사몰린 및 세사미놀 배당체 함량을 측정하여 품질 특성을 평가하였다. 참깨의 조지방 함량은 파키스탄산 42.47 %, 중국산 38.95%, 인도산 34.96% 및 수단산 33.93%로 파키스탄산이 가장 높았으나 지역간에는 유의적인 차이가 나타나지 않았다. 세사민 함량은 중국산 634.75 mg/100 g seed, 수단산 630.66 mg/100 g seed, 인도산 381.55 mg/100 g seed 및 파키스탄산 401.00 mg/100 g seed으로 중국산이 유의적으로 높게 나타났다. 세사몰린 함량은 중국산 218.99 mg/100 g seed, 수단산 234.49 mg/100 g seed, 인도산 (185.64 mg/100 g seed) 및 파키스탄산 (127.04 mg/100 g seed)으로 지역간에 유의적인 차이가 있는 것으로 나타났다. 세사미놀 배당체 함량은 중국산 321.40 mg/100 g seed, 수단산 218.99 mg/100 g seed, 인도산 505.04 mg/100 g seed 및 파키스탄산 342.87 mg/100 g seed로 인도산이 가장 높은 함량이었다. 참깨 핵산 추출물의 전자공여능을 측정한 결과 인도산의 전자공여능이 유의적으로 높았고 파키스탄산 및 중국산순 이었다. 이상의 결과 지역별 참깨 품질 특성에는 유의적인 차이가 있었고 특히 최근에 기능성 성분으로 관심이 집중되고 있는 세사민과 세사몰린 및 세사미놀 배당체는 지역에 따라 현저한 차이가 있는 것으로 나타났다.

• Korean Journal of Food Science and Technology
• /
• v.16 no.3
• /
• pp.348-352
• /
• 1984

Sesamolin and sesamin in the five domestic varieties and seven of imported sesame seed were analyzed by High Performance Liquid Chromatography to evaluate quality of sesame oil. Their stability against roasting, changes of content during storage of sesame oil and differences in carry-through ratio by extracting method were also analyzed. The results indicated that the HPLC method was simple, rapid and reliable in the evaluation of sesame oil quality.

• Journal of Food Hygiene and Safety
• /
• v.16 no.4
• /
• pp.349-354
• /
• 2001

Oxidative stress is believed to play an important role in the development of vascular complications associated with diabetes mellitus. We examined the antioxidative effect of sesamin and sesamolin on the preventing the development of insulin dependent diabetes mellitus using streptozotocin-induced Spraque Dawley diabetic rats. From 48 hours after injection of streptozotocin (60 mg/kg body weight), a portion of diabetic rats were fed with 0.2% sesamin and sesamolin containing diet for 3 weeks. There were significant differences of blood glucose and kidney weight between diabetic ports and control. Sesamin and sesamolin increased glutathione-S-transferase activity in kidney. The concentration of the thiobarbituric acid-reactive substances in the serum, liver, and kidney of diabetic rats administered sesamin and sesamolin decreased significantly as compared with that of the non-treated diabetic group. Dietary sesamin and sesamolin suppressed the oxidative stress in the diabetic rats. These results demonstrated that sesamin and sesamolin are potential and effective antioxidants that can protect the complications associated with diabetes.

• Food Engineering Progress
• /
• v.15 no.4
• /
• pp.420-425
• /
• 2011

Addition effects of free fatty acids (FFA), glycerol, monoacylglycerol (MAG), sesamol, and aqueous extracts of sesame seed meal (ASM) on the changes of sesamol and sesamolin were determined in thermally oxidized sesame oil (SO) at 180$^{\circ}C$ for 90 min. Sesamol and sesamolin in SO were analyzed by high performance liquid chromatography (HPLC). As the concentration of FFA and MAG in SO increased up to 10% (w/w), the concentration of sesamol increased significantly by 0.94 and 0.70 mM, respectively (p < 0.05) whereas sesamol in control samples increased by 0.09 mM for 90 min oxidation. Sesamolin in 10% MAG and FFA added SO significantly decreased by 15 and 18%, respectively (p < 0.05) compared to control samples. Sesamolin in SO with addition of 1.5 and 2.5 mM sesamol were not significantly different (p > 0.05). Addition effects of ASM on the changes of sesamol and sesamolin in SO were not constant during thermal treatment. Conversion of sesamol from sesamolin in SO during thermal treatment seemed to be influenced by the presence of FFA and MAG.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2009.06a
• /
• pp.162-163
• /
• 2009

본 연구에서는 초음파 진동자를 적용한 초극세사 자동 절단 시스템을 개발 하였다. 초극세사 자동 절단 시스템은 공진 주파수 28kHz를 가지는 초음파 진동자, 구동회로부, 원단 이송장치, 초음파 진동자 이송장치, 초극세사 원단과 에어실린더 사이의 정전기 발생을 방지하기 위한 정전기 제거장치, 구동모터, 및 절단 크기와 절단 속도 등을 조절하기 위한 전기제어 판넬로 구성하여 제작하였다. 또한, 개발한 절단 시스템을 이용하여 초극세사 클리너 시제품을 제작하여 절단면을 전자현미경으로 관찰하였고, 절단 시스템의 소음진동 특성을 평가하였다.

• Journal of the Society of Disaster Information
• /
• v.9 no.4
• /
• pp.493-502
• /
• 2013

The purpose of this research is to estimate the drying shrinkage and durability of concrete using the fine river sand to utilize it actively as an alternative aggregate for concrete. For this purpose, the fine river sand samples were collected at the mid and down stream of main stream of Nakdong-River, and then the concrete specimens using the fine river sand were made according to strength level. After obtaining relation equation between compressive strength and cement-water ratio from the mix experiment result, the concrete specimens using different fine river sand were made for the specified concrete strength of 35MPa, and then their drying shrinkage and durability such as the resistance to freeze and thaw and carbonation were evaluated. It was observed from the test result that the durability of concrete using fine river sand was similar to that of concrete using reference sand, but the drying shrinkage of concrete using the fine river sand with small fineness was comparatively larger than that of concrete using reference sand.

• KSBB Journal
• /
• v.20 no.3
• /
• pp.205-209
• /
• 2005

Studies for the commercial production of sesame oil using th supercriticl carbon dioxide were made. Characteristics of sesame oil containing one of natural antioxidant 'sesamol', which only exist at sesame seed were also studied during the supercritical fluid extraction. Among the various factors influencing the sesamol contents in the sesame oil, the roasting time and temperature were checked, because sesamol can be converted from sesamol in through pyrolysis. We found that the sesamol content was increased rapidly under the condition of roasting temperature over $200^{\circ}C$ with longer roasting time. The sesamol content was increased as the temperature and pressure increased, which was caused by increase of solubility of sesamol against sesamol oil. And the sesamol content was increased also with lower speed of supercritical fluid, which increased the contact time with the raw material. The sesamol content was also increased using water increase up to $1\%$ as the entrainer. When the extraction performance with the supercritical fluid was compared to the conventional compressed extraction, the sesamol content was increased up to 11.5 times with the entrainer.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.49 no.6
• /
• pp.496-502
• /
• 2004

The development of sesame varieties which contain high contents of lignan compounds has been progressed in Korea. This study was carried out to get the basic information for the breeding of high quality sesame varieties and the development of health functional food sources using lignan compounds from sesame. The contents of sesamin and sesamolin were $4.08\pm1.74$ and $2.47\pm0.68mg/g$, respectively, from sesame cultivated in 2002 and those were $4.08\pm1.51$ and $2.48\pm0.69mg/g$, respectively, from sesame cultivated in 2003. The content of sesamine was high in the order of Danbaek (6.22 mg/g), Seongbun (5.94 mg/g), Namda (5.83 mg/g), and Naman (5.59 mg/g) producted in 2002 and Seongbun (6.27 mg/g), Dasak (5.53 mg/g), Danbaek (5.50 mg/g), chinbaek (5.45 mg/g), and Seodun (5.41 mg/g) producted in 2003. The content of sesmoline was high in the order of Hwangbaek (3.27 mg/g), Seongbun (3.26 mg/g), Annam (3.22 mg/g), Hanseom (3.17 mg/g), and Danbaek (3.16 mg/g) producted in 2002, and Seongbun (3.21 mg/g), Seodun (3.14 mg/g), Pungan (3.10 mg/g), Naman (3.09 mg/g), and Danbaek (3.04 mg/g) producted in 2003. The contents of sesamin and sesamolin of Yangbaek, which has used as a standard variety for sesame breeding, were relatively lower than in any other varieties. These resluts suggest that Yangbaek is not the proper variety as a standard variety for development of high quality sesame. In conclusion, proper good variety as a standard variety for sesame breeding must be determined after careful consideration on the major quality factors including crude oil and lignan compounds as well as agricultural characteristics to develop high quality sesame varieties containing high contents of lignan compounds.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.3
• /
• pp.1481-1488
• /
• 2013

The purpose of this experimental research is to suggest a base data to utilize the fine sand of Nakdong-River actively as an alternative aggregate for concrete. For this purpose, after the typical fine sand samples were collected at the mid stream and down stream of main stream of Nakdong-River, the physical properties of them and the mix characteristics of concrete using those were estimated. As a result, it was observed from the test result that mix characteristics between concrete using fine sand and concrete using well-graded reference sand made little differences since unit water content and unit cement content of concrete using fine sand increased only a little than those of concrete using reference sand for specified compressive strength.

• Korean Journal of Pharmacognosy
• /
• v.34 no.3 s.134
• /
• pp.237-241
• /
• 2003

This study was carried out to test the growth inhibitory effects of sesamolin obtained from sesame seeds. Sesamolin inhibited the growth of human leukemia HL-60 cells in cultures and the synthesis of macromolecules in dose- and time-dependent manners. Sesamolin in the $60{\sims}100\;{\mu}g/ml$ range was cytostatic. At concentrations greater than $200\;{\mu}g/ml$ sesamolin was cytocidal to HL-60 cells and at $60\;{\mu}g/ml$ inhibited the synthesis of DNA, RNA and protein in HL-60 cells by 35.1, 6.1, and 5.3%, whereas at $200\;{\mu}g/ml$ these inhibitions were 86.8%, 81.5% and 96.7%, respectively. The inhibitory effect of sesamolin on DNA synthesis was irreversible.