• Fisheries and Aquatic Sciences
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• v.25 no.6
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• pp.327-334
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• 2022

Marine resources have various biological activities and their constituents are more novel than those of land organisms. Several biologically active constituents have been found in marine organisms. Recently, many studies have reported that marine animals (MAs) can be used as functional ingredients in functional foods or nutraceutical due to their health benefits. However, no studies have extensively investigated the cosmeceutical activities of MAs extracts. Here, 70% ethanol extracts of 38 MAs were investigated for their activities of whitening and anti-aging properties for use as materials in novel cosmeceuticals. Anti-aging activities were determined by skin aging-related enzyme activities (anti-collagenase, anti-elastase, anti-hyaluronidase) and whitening activities (anti-tyrosinase, anti-3,4-dihydroxyl-L-phenylalanine [DOPA] oxidation) evaluated by colorimetric method. Among the 38 MAs, we found that Urechis unicinctus and Petrosia corticata extracts showed the strongest inhibitory effects against tyrosinase and DOPA oxidation, respectively. Our results additionally showed that Protankyra bidentata extract might provide a major source of anti-hyaluronidase and anti-elastase; meanwhile, anti-collagenase effects were similar in most MAs. Overall, these results suggest that extracts of marine animals have potential as a tyrosinase, collagenase, elastase, and hyaluronidase inhibitors. Taken together, MA resources could be considered as a novel cosmeceutical agent to be applied in cosmetic industry.

• International Journal of Industrial Entomology and Biomaterials
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• v.31 no.2
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• pp.56-61
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• 2015

Rutin is an important bioflavonoid that is consumed in the daily diet. This study compared the functional components of rutin from various silkworm species using a gene database with those of rutin produced by silkworms selectively bred through cross-combinations. We made comparisons between the geographical origin and species of silkworm using a gene database and discovered that rutin activity was ranked in the following order by species, Chinese (C5)> miscellaneous varieties (Jamsaeng 1 Ho) >Japanese (Jam 115) > European (E58) >Korean (Sun 3 ho). However, rutin levels with respect to various genetic traits (blood color, silk color, and egg color) were consistent. In order to study rutin changes that occurred during the cross breeding of the silkworm gene, we bred cross-combinations utilizing Jam 115 and the 4051 silkworms. In conclusion, in order to provide information about the constituents of functional materials contained in silkworm powder, it is imperative that silkworm cross breeding occurs so that the database of functional materials extracted from silkworms will expand.

• Proceedings of the Korean Society of Community Living Science Conference
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• 2009.09a
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• pp.91-91
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• 2009

Pulses are an annual leguminous crop yielding from one to twelve grains or seeds. This study was used eight pulses except for green beans. We evaluated the chemical characteristics of these raw pulses produced in Korea. The nutritional and functional contents such as moisture, carbohydrate, crude protein, crude lipid, ash, dietary fiber, minerals(Ca, P, Fe, Na, and K), vitamins (A, E, C, B groups, folic acid, and niacin), total polyphenol, carotenoid, and flavonoid containing isoflavone were investigated. As a results, all raw samples were shown the high levels of almost nutritional contents (especially, protein, fats, and fat-soluble vitamins). In addition, yellow soybeans, red bean, and kidney bean were high the contents of total polyphenol. Of the functional contents, three lands of the yellow soybeans were shown the high flavonoid. This study represent much to provide the fundamental nutrition and function data in pulses because they have significant nutritional and health advantages for humans.

• Proceedings of the Korean Society of Community Living Science Conference
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• 2009.09a
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• pp.90-90
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• 2009

Cereals or cereal grains, are grasses cultivated for the edible components of their fruit seeds. In this study we evaluated the chemical characteristics of 12 raw cereals produced in Korea. The nutritional and functional contents such as moisture, carbohydrate, crude protein, crude lipid, ash, dietary fiber, minerals(Ca, P, Fe, Na, and K), vitamins (A, E, C, B groups, folic acid, and niacin), total polyphenol, carotenoid, and flavonoid containing isoflavone were investigated. Especially, the dietary fiber were determined and divided into three contents such as total, soluble, and insoluble fibers. As a results, the black rice was shown the high total polyphenol and flavonoid contents. They were included the rich vitamins, minerals, carbohydrates, fats and protein. The other chemical compositions were not shown the remarkable differences among cereal cultivar. This result can be used as basic data for specific cooking or functional study.

• Journal of Applied Biological Chemistry
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• v.56 no.1
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• pp.43-48
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• 2013

In this study, methanol extracts from 25 indigenous Korean corals were prepared and their carotenoid constituents were analyzed by high-performance liquid chromatography-atmospheric pressure chemical ionization-mass spectrometry (HPLC-APCI-MS). Among them, extracts from nine species showed detectable peaks in the HPLC chromatogram at 450 nm and the ultraviolet/visible spectra exhibiting carotenoid-specific characteristics were chosen. The mass data of carotenoid peaks revealed that only peridinin could be identified based on literature comparison and suggested the potential presence of novel carotenoid structures. This is the first reported investigation of indigenous Korean coral carotenoids and further work is needed to explore the carotenoids and their potential roles in the ecosystem of indigenous Korean corals.

• International Journal of Industrial Entomology and Biomaterials
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• v.29 no.2
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• pp.162-168
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• 2014

1-Deoxynojirimycin(1-DNJ or DNJ), a component in silkworm powder, prevents glucose from being absorbed into the bloodstream from the small intestine by inhibiting ${\alpha}$-glucosidase activity. This study compared the functional components of 1-DNJ from various silkworm species using a gene database with those of 1-DNJ produced by silkworms bred through cross-combinations. We utilized comparisons of geographical origins and species of silkworms using a gene database and discovered that 1-DNJ activity was ranked in the following order by species, Japanese (SK-1) > Chinese (C48) > European (Rock191). 1-DNJ constituted varying percentages of silkworm organs in the following order, blood > epithelial tissue > body fat > silk glands. With regard to sex, 1-DNJ, levels were higher in males than females. However, 1-DNJ levels with respect to various genetic traits (blood color, silk color, and egg color) were consistent. In order to study 1-DNJ changes that occurred during cross breeding of the silkworm gene, we bred cross-combinations utilizing SK-1 and C48 silkworms. In conclusion, in order to provide information about the constituents of functional materials contained in silkworm powder, it is imperative that silkworm cross breeding occurs so that the database of functional materials extracted from silkworms will expand.

• Natural Product Sciences
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• v.11 no.3
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• pp.123-126
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• 2005

Gastrodia elata Blume (Chunma) belongs to Orchidaceae, which is a perennial parasitic herbaceous plant and grows in the woods of the central provinces of China, Korea and Japan. Recently, the constituents of the tubers of this plant have been investigated by researchers who have revealed the presence of phenolic compounds including gastrodin as a major constituent, together with 4-hydroxybenzaldehyde, 4-hydroxybenzyl alcohol, parishin, 4,4-dihydroxybenzyl sulfoxide, vanillin, vanillyl alcohol, beta-sitosterol, organic acids and polysaccharides, etc. In this study, we used ultrasonicator and two kinds of enzymes for enhancement of extraction yield. We also used electronic nose for the aroma pattern analysis of Chunma extracts. The concentrations of glucose and functional constituents (gastrodin, vanillin, 4-hydroxybenzaldehyde and 4-hydroxybenzyl alcohol) were measured by biochemistry analyzer and HPLC, respectively. Therefore, we showed that the yield of extraction was increased and discomfortable odor was reduced.

• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.483-484
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• 2010

Accessories originated from men's ornamental instinct in the beginning as a body ornament. Women's accessories in the Joseon Dynasty have splendid structure and rich symbolism, so they are enough to be a target of the study for being contents of Korea's cultural archetype. Traditional accessories are the foundation of excellent formative and functional characteristics due to the extreme beauty of crafts. This study aims to develop archetype of excellent formative factors by making traditional accessories digitalized for perpetuation in order to apply them to the culture industry. In addition, it is to prepare the educational foundation by reinterpreting traditional accessories in a modern way. Therefore, this researcher intends to develop constituents of traditional accessories by means of digital images and suggest digital contents methods of accessory techniques by dividing constituents, techniques, materials, symbolic meaning, and attire and wear.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.31 no.1
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• pp.61-71
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• 1999

The study aimed at the theoretical analysis of vapor sorption properties of, pp.rmaking fibers. Water vapor affinity and sorption thermodynamic properties of fiber constituents were evaluated based on Henry's law and Hildebrand's solubility theory. Theoretical equilibrium moisture content(ThEMC) on fiber surface was estimated using functional group contribution. Crystallinity of cellulose in fiber significantly controlled the water vapor solubility. Comparisons of the measured equilibrium moisture content data and the estimated ThEMC data coincidently suggested the fact that crystallinity of cellulose in fibers was around 60% to 70%. Carbohydrates constituents including amorphous cellulose and hemicellulose in fibers showed higher vapor solubility than lignin molecules. High correlation existed between ThEMC and vapor solubility as well as between ThEMC and solubility parameter. In the thermodynamic analysis on water-vapor sorption process in fibers, the sorption enthalpy increased as RH increased, whereas sorption entropy and free energy decreased with increasing RH.

• Journal of Applied Biological Chemistry
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• v.65 no.3
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• pp.153-158
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• 2022

This study aimed to identify the phytochemical constituents of Lactuca serriola leaves and perform quantitative analysis of the methanol (MeOH) extract of L. serriola, L. indica, L. raddeana, L. sativa, and L. triangulata. Six compounds were isolated from the MeOH extracts of L. serriola using open column chromatography and identified as protocatechuic acid (1), caffeic acid (2), cynaroside (3), apigenin 7-glucuronide (4), luteolin (5), and apigenin (6) using ¹H-, ¹³C-nuclear magnetic resonance, and mass spectrometry. Quantitative analysis of the six compounds was performed on the MeOH extract of Lactuca species using high-performance liquid chromatography (HPLC) and an ultraviolet (UV). A reverse-phased column was used, and the UV absorbance was set to 280 nm. The contents of compounds 2 and 3 were the highest (1.58 and 2.64 mg/g ext., respectively) in L. serriola extracts. However, compounds 4 and 6 were higher (1.46 and 0.40 mg/g ext., respectively) in L. triangulata. These results provide quantitative data for the application of Lactuca species in the pharmaceutical and functional food industries.