• Journal of the Korea Convergence Society
• /
• v.8 no.1
• /
• pp.43-49
• /
• 2017

In the analyzed cardiac CT algorithm applied when comparing the MAR self-made metal artifact reduction in pacemaker inserted phantom degree. Result of comparing the energy value by CT showed a decrease in the CT value in the case of BKG 40 KeV in WSA maximum decreased to 663.2% in the case of 140 KeV BHA were increased a maximum of 56.2%. In addition, the maximum was decreased by approximately 145% based on a 70 KeV artifacts in CT value comparison by type WSA, BHA was to increase up to approximately 46.38%. MAR Algorithm is believed to provide a more quality cardiac CT image if the energy changes, or have the effect that by type and irrespective of reduced metal artifacts occurrence of artifacts applied to the pacemaker when tracking a heart CT scan after inserting MAR algorithm.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.43 no.4
• /
• pp.516-521
• /
• 2014

The purpose of this study was to examine the skin regeneration ability of Lespedeza cuneata extract (LC) as well as verify its wound healing effects on an open wound in rats. Rats were divided into six groups (NO, saline treated group; CO, 1% carboxy methyl cellulose (CMC) treated group; PC, fucidin treated group; LCL, 1% LC treated group; LCM, 3% LC treated group; LCH, 5% LC treated group), and the experimental material was applied for 5 weeks. Elastase inhibition rate of the LCM group was 2.7% lower than that of butylated hydroxy anisole (BHA), which is an antioxidant. Futher, the collagenase inhibition rate of the LCM showed 7% higher activity than that of BHA. The left wound areas in the LCL group, LCM group, and LCH group after the 21st day were noticeably reduced in wound area by 54.2%, 53.5%, and 48.7%, respectively, compared to the CO group. This suggests that Lespedeza cuneata extract has healing effects on surgical wounds by promoting regeneration of skin epithelial tissue and synthesis of collagen.

• Korean Journal of Food Science and Technology
• /
• v.22 no.4
• /
• pp.411-414
• /
• 1990

Antithiamin activities of BHA, BHT PG and TBHQ of synthetic phenolic antioxidants at various pH's and temperatures were studied. All antioxidants had little antithiamin activity as is the case with control group at pH 4 and $38^{\circ}C$, but antithiamin activity was stronger at $60^{\circ}C$ than at $38^{\circ}C$ under the same pH. Meanwhile, the destruction of thiamin incubated at $38^{\circ}C$ was more rapid at pH 7 than at pH 4, and the destruction of thiamin at pH 7 was much more rapid at $60^{\circ}C$ than at $38^{\circ}C$. BHA and BHT had little, or extremely slight antithiamin activity. Antithiamin activity of PG was comparatively strong, but TBHQ had the strongest antithiamin activity among synthetic phenolic antioxidants examined.

• Korean Journal of Food Science and Technology
• /
• v.3 no.1
• /
• pp.48-51
• /
• 1971

The raw surf clam meat was pretreated with BHA, EDTA or $NaHSO_3$. The pretreated meat was chopped with chopper, and spread the chopped meat on nylon net, and then dehydrated with cabinet type hot air dryer. In the surf clam meat flake process, the pretreating and the copping steps prior to final dehydration improved the pigment retention and texture of the products. The chopping steps prior to dehydration reduced the dehydration time of surf clam meat. The BHA treatment prior to dehydration of mashed surf clam meat had an outstanding effect on the pigment retention during a process of dehydration and storage. The surf dam meat flakes reabsorbed water more rapidly about two times than the dehydrated natural surf clam meat products. The surf clam meat flakes stored for three months in the dark place showed less pigment loss than the exposed ones, and the former reabsorbed water more rapidly than the latter.

• Korean Journal of Veterinary Research
• /
• v.41 no.3
• /
• pp.387-393
• /
• 2001

The chemical composition of fish feeds(mackerel, gizzard shad, shrimp and formula feed) were analyzed and compared with those of untreated and irradiated (5 kGy) feeds, and the effects of gamma irradiation (5 kGy) and butylated hydroxyanisole (BHA, 200ppm) on feeds spoilage were investigated by determination of thiobarbituric acid (TBA) value and peroxide value for 14 days at $20^{\circ}C$, $4^{\circ}C$ or $-20^{\circ}C$. Crude protein, crude lipid, crude fiber, crude ash and nitrogen free extract were not significantly changed by gamma irradiation with the dose of 5 kGy. Immediately gamma irradiation increased the initiative oxidation of feeds as expected. But BHA was found to be greatly effective in minimizing the radiation-induced peroxidation (p<0.05). The TBA value and peroxide value increased with the elapse of the storage period. The level of lipid oxidation was increased depending on the rise in storage temperature. But the additions of BHA inhibited the lipid oxidation (p<0.05).

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.40 no.6
• /
• pp.804-808
• /
• 2011

We studied the antioxidant activity of Suaedajaponica, found in Korean mud flats. A 70% ethanol extraction yielded 9.74%. The 70% ethanol extract was further fractionated with hexane, chloroform, ethyl acetate, butanol, and water. The water fraction resulted in the highest extraction yields, but the ethyl acetate fraction resulted in the highest total phenol content and also total flavonoid content. The antioxidative activity of the fractions was evaluated using several methods and compared to commercial antioxidants. The scavenging activities of the hydroxyl radical, hydrogen radical, hydrogen peroxide, and xanthine oxidase of the ethyl acetate fraction were equivalent to that of BHA. The scavenging activities of the hydroxyl radical, hydrogen peroxide, and xanthine oxidase of the ethanol extracts were approximately 80~90% of that of BHA.

• Current Research on Agriculture and Life Sciences
• /
• v.10
• /
• pp.11-17
• /
• 1992

In this study, antioxidative effectiveness of BHA, BHT at 0.02%(w/w) was compared with those of separated free phenolic acid, ester form and insoluble bound phenolic acid which were extracted from 50 g of Terminalia chebula Retz by MeOH/aceton solvents. Antioxidative effectiveness was measured by peroxide values and TBA values for 7 days, storaging respective substrates and contrast tube at $45{\pm}1^{\circ}C$ for 35days. Laboratory tubes was added by BHA, BHT, separated free, soluble and insoluble phenolic acid extracts and peroxide value of contrast tube after 21 day storage were 60, 30, 14, 11, 100. On the other hand, at the same conditions, TBA values of each antioxidants were 0.150, 0.108, 0.105, 0.073, 0.078, 0.185. This results remarkably appeared antioxidative effectiveness in meal soybean oil substrates. Phenolic acid separated and identificated were p-coumaric acid, Ferulic acid, Phloroglucinol, Pyrogallol, Vanillic acid and Caffeic acid.

• Applied Biological Chemistry
• /
• v.36 no.3
• /
• pp.203-207
• /
• 1993

Free phenolic acid, soluble ester and insoluble phenolic acid were extracted from defatted Crataegus pinnatifida and Terminalia chebula. Their antioxidative effectiveness was compared with BHA and BHT for soybeen oils by measuring peroxide and thiobarbituric acid values at $45^{\circ}C$ for 25 days. The patterns of these extracts were compared by using high performance liquid chromatography. Ether extracts from Crataegus and Terminalia showed a higher antioxidative effectiveness than BHA and BHT, and the latter was more effective than the former Among phenolic extracts, free phenolic acid and soluble phenolic acid ester were found most effective in Crataegus and Terminalia, respervively, Each phenolic extract was confirmed to be composed of two or three individual compounds.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.4 no.1
• /
• pp.22-30
• /
• 1971

Sea mussel Mytilus edulis, world-widely distributed, is a sort of popular food in Korea. The demands of high quality and mass production are not being satisfied since it is usually sun dried. A rapid dehydration and the treatment of food additives to improve the quality of the product seems to be required. In this paper, the effect of antioxidants and EDTA treatment was studied when sea mussel was pressed and hot-air dehydrated for 10 hours at 45 to $52^{\circ}C$ under the air flow rate of 3 meter per second. The results are as follows: 1) Cooked and pressed sea mussel was dehydrated mere rapidly than cooked without pressing. 2) The rehydration rate of pressed and dehydrated sea mussel was higher than that of the unpressed. 3) Among six samples, BHA treated material showed the best color preservation during dehydration and storage. The treatment of Teonox-II was also effective following BHA. 4) The effects of antioxidants used during dehydration and storage were in order of BHA, Tenox-II and NDGA treatment, while EDTA was ineffective. 5) No significant difference in rehydration rate was found between those treated with antioxidants or EDTA and the untreated. 6) The amount of soluble protein was higher in the samples treated with antioxidants than in EDTA treated or untreated samples. 7) The results suggest that the treatment of BHA and pressing process produce improved product in quality which gives higher amount of soluble protein and better rehydration, color preservation and preventive effect of rancidity.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.42 no.6
• /
• pp.851-855
• /
• 2013

This study was carried out to elucidate the effect of garlic extracts on the antioxidative activities of three isoflavones. All isoflavone samples showed greater antioxidative activity than butylated hydroxyanisole (BHA). In EDA (electron donating ability) tests, reducing power, SOD-like activity, and hydroxyl radical scavenging activity, all isoflavone samples with garlic extracts added showed significantly greater antioxidative effects than BHA. In conclusion, isoflavones have a potent antioxidative activity and garlic extracts have a big synergistic effect on this antioxidative activity.