• The Korean Journal of Food And Nutrition
• /
• v.14 no.5
• /
• pp.405-410
• /
• 2001

Mushroom jellies using extracts of Garnoderma lucidum, Lentinus edodes, Pacilomyces ten tenuipes and Cordyceps militaris were prepared, and Investigated the colors, texture and sensory characteristics of mushroom jellies. G. lucidum jelly mixed 85% mushroom, 10% jujube(Zizyphus jujuba Miller) and 5% hwanggi (Astragaslus membranaceus) extract, L. edodes jelly mixed 80% mushroom, 10% jujube, 5% gamcho( Glycyrrhiza uralensis) and 5% omija (Schizandrae chinensis Ruprecht) extract. and P. tenuipes and C. militaris jelly mixed 85% mushroom. 10% jujube and 5% gamcho extract were most effective in overall acceptability. The Jellying ability of carrageenan was better than other jelling agents. According to increase carrageenan content, color of mushroom Jellies were not effect. however hardness, gumminess and chewiness were increased. Sensory evaluation of mushroom Jellies were most preferable at the 0.6% carrageenan content.

• KSBB Journal
• /
• v.25 no.5
• /
• pp.421-428
• /
• 2010

This paper reports on the experimental investigation carried out to evaluate the physical optimal conditions in the absorption column to remove odorous hydrogen sulfide gas. Hydrogen sulfide gas, as a highly undesirable contaminant, is most widely emitted from environmental treatment facilities. The absorbent mixed with natural second metabolites extracted from conifer trees and chemical absorbent of 2-aminoethanol was applied to remove it via chemical neutralization. The absorbent of natural second metabolites was achieved by a removal efficiency of 20-40% by itself depending on the treatment conditions, but the complex absorbent mixed with 0.1% amine chemical provides the removal efficiency of 98%. The optimal removal efficiencies have been examined against the two major parameters of temperature and pH. This study shows that the aqueous solution by natural second metabolites can be used as an appropriate absorbent in the column absorbed for the removal of hydrogen sulfide gas.

• Journal of the Korean Society of Food Culture
• /
• v.3 no.4
• /
• pp.377-383
• /
• 1988

This studies have been carried out to develop Korean traditional tea from the effects of Cornus officinalis and Lycium chinense and to study the developed tea on microbiological (Saccharomyces cerevisiae) and metaboilsm of experimental animals (Spraque-Duwely male rats 200g). On the microbiological study the yeast growth is increased with the increase of added Cornus officinalis or Lycium chinense and Lycium chinense increased the yeast growth more than Cornus officinalis, especially the synergistic effects are recognized on mixed extract of Lycium chinense and Cornus officinalis. The effects of Cornus officinalis, Lycium chinense or the mixed extract of both extract on liver damage caused by carbon tetrachloride were investigated in the case of animal test. The activities of GOT and GPT in serum are increased on control group compared to normal group but Lycium chinense group and group (which is administrated with the mixed extract of both ectract) decreased apparently the activities of GOT and GPT. The contents of Creatinine, BUN and Glucose in serum has no difference between normal and control group when the Cornus officinalis, Lycium chinense or mixed extract of both extracts were injected. Among them Lycium chinense group showed more normal value compared to Cornus officinalis and the mixture of both extract. The protective effect on rat liver damage caused by carbon tetrachloride is in order of Lycium chinense. The synergistic effects of the mixed extract on liver damage are proved to be better than Lycium chinense or Cornus officinalis singly.

• Journal of Internet Computing and Services
• /
• v.25 no.1
• /
• pp.29-37
• /
• 2024

In this paper, we propose an efficient image processing system to detect and track the movement of specific objects such as patients. The proposed system extracts the outline area of an object from a binarized difference image by applying a thinning algorithm that enables more precise detection compared to previous algorithms and is advantageous for mixed-mode design. The binarization and thinning steps, which require a lot of computation, are designed based on RTL (Register Transfer Level) and replaced with optimized hardware blocks through logic circuit synthesis. The designed binarization and thinning block was synthesized into a logic circuit using the standard 180n CMOS library and its operation was verified through simulation. To compare software-based performance, performance analysis of binary and thinning operations was also performed by applying sample images with 640 × 360 resolution in a 32-bit FPGA embedded system environment. As a result of verification, it was confirmed that the mixed-mode design can improve the processing speed by 93.8% in the binary and thinning stages compared to the previous software-only processing speed. The proposed mixed-mode system for object recognition is expected to be able to efficiently monitor patient movements even in an edge computing environment where artificial intelligence networks are not applied.

• 제어로봇시스템학회:학술대회논문집
• /
• 2003.10a
• /
• pp.1957-1962
• /
• 2003

In order to design the phantom of heart, we have developed the multi-dipole current source system. Such a one be clue to the various motion of heart. The magnetocardiograph (MCG) system for diagnosing the disease of the heart due to an analysis of the heart signal. The multidipole current source system be built by microprocessor. We use the shield room to obtain a good experimental result. Then the signal acquired is mixed with a background noise, through a filtering extracts a pure signal. The pure signal such a heart phantom is analyzed by an electromagnetic map.

• Preventive Nutrition and Food Science
• /
• v.16 no.2
• /
• pp.142-149
• /
• 2011

The purpose of this study was to elucidate the physicochemical and microbiological properties of Korean traditional rice wine, Makgeolli, supplemented with black garlic extract during fermentation. Black garlic extract was diluted with distilled water to produce 0.5% and 1.0% black garlic solutions. Those solutions were then used to make rice solutions which included 2 kg rice, 40 g Nuruk (a fermentation starter), and 14 g yeast. After being mixed, the rice solutions were fermented for 7 days in a water bath at $28^{\circ}C$. The alcohol contents of the control, 0.5% and 1.0% black garlic Makgeolli were 16.9, 16.0, and 16.2%, respectively. Total acidity, total soluble solids, and color increased throughout the fermentation process. There was an increase of microorganisms throughout the fermentation period in all the samples. Glucose was the highest free sugar, and succinic acid was the highest organic acid detected in all the samples. Thirty nine volatile compounds were detected in black garlic Makgeolli.

• Journal of the Korean Chemical Society
• /
• v.6 no.2
• /
• pp.99-103
• /
• 1962

The usefulness of a propionylated paper chromatography to the identification of various insoluble organic antioxidants in rubber vulcanizates was studied. Purified commercial antioxidants and commercially mixed antioxidants could be identified by the propionylated paper chromatography. Antioxidants were identified by the propionylated paper chromatography from acetone extract of pure gum vulcanizates, which were either unaged or aged in Geer-Oven. The $R_f$ values from acetone extracts of vulcanizates were a little lower than those purified samples, but the colours and shapes of the spots support the identification. No spot could be obtained by the method from the aged vulcanizate containing antioxidant 200 (2,6 Di-tert-butyl-p-cresol). This indicates that the antioxidant was converted or decomposed to other compound after aging. It was concluded from the above results that the propionylated paper chromatography is useful to identify the antioxidants from vulcanizates and presents a key for elucidating the mechanism of the inhibition.

• Bulletin of the Korean Chemical Society
• /
• v.31 no.9
• /
• pp.2557-2560
• /
• 2010

To assay for antioxidant capacity of natural products considered important in producing human health benefits, a practical and economical method using pellet techniques was developed. A standard visualizing reagent, 1,1diphenyl-2-picryl-hydrazyl (DPPH), was mixed with a water-miscible polyvinyl alcohol (PVA), serving as a solid phase support for the DPPH reagent. A DPPH pellet was prepared by dropping a small volume of the DPPH solution onto PET film, and drying in an oven. The PVA-based DPPH pellet was dissolved into water, in which the water-miscible PVA plays as a non-ionic surfactant to help the DPPH reagent to be dissolved into the solvent. Using the DPPH assay, the antioxidant capacity of water-soluble extracts of black soybean, barley, green tea, and green gram was examined. Among the natural products tested, green tea showed the highest antioxidant capacity. This PVA-based DPPH antioxidant assay can be further applied in the natural food, raw plant material, and health product inspection field.

• Journal of the East Asian Society of Dietary Life
• /
• v.3 no.2
• /
• pp.155-163
• /
• 1993

This study was conducted to investigate the optimal condition of the extraction of red pepper oleoresin. The yield of oleoresin form red pepper was 24~28% when it was extracted by ethanol and methanol. and 8~10% by acetone, ethylene dichloride and n-hexane. But more than 60% of portion in alcohol extracts were moisture and sugars. Capsaicin and pigment were extracted more than 70% of those in red pepper when it was extracted by ethylene dichloride Those useful components were extracted most efficiently by mixed solvents of ethanol and ethylene dichloride at the ratio of 50:150. other extracting conditions were investigated in this studies, such as optimal extraction time was more than 3 hours, temperature was 55$^{\circ}C$ and particle size was finer than 250 mesh

• Journal of Korean Society for Atmospheric Environment
• /
• v.10 no.E
• /
• pp.325-331
• /
• 1994

Organic extracts of diesel- exhaust particulates were analyzed for mutagenicity using Ames Salmonella typhimurium assay system. An experimental diesel microbus used was drived on the chassis dynamometer according to CVS-75 mode. The samples were taken from the mixed gases in a dilution tunnel. With a high-volume air sampler equipped with double filter holders, particulate matters were collected on a teflon-coated glass fiber filter placed behind a activated carbon filter. After ultrasonic extraction with benzene- ethanol and evaporation to dryness, the residue was dissolved in dimethylsulfoxide. Each sample was tested toward 2 strains, TA100 and TA98 by the pre-incubation method in the absence and presence of S-9mix. Average concentration of diesel- exhaust particulates was about 116.6mg/m$^3$, and 44.1~62.2 ％ to the total weight of particulates, consisted of organic matters. The mutagenicities of diesel- exhaust particulate organic matters were 4,512 and 2,205 revertants/m$^3$ toward TA100 without and with S-9mix, respectively. Those toward TA98 were 13,367 and 3,715 revertants/m$^3$, respectively.