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明聖河,李學仁,金蓮燮 대한본초학회 1999 大韓本草學會誌 Vol.14 No.1
This experiment was performed into investigate the effect of Bambusae Caulis and Raphani Semen on the diabetic rats induced by streptozotocin. Experimenal diabetes was induced by 55㎎/㎏ of streptozotocin injection and administered Bambusae Caulis and Raphani Semen extract during 3 days after streptozotocin injection. Glucagon and insulin granules in Langerhans islets were stained by use of immunohistochemical method and observed the relative amount of the each granules in Langerhans islet by light microscope and image analysis system. The results obtained are as follows: 1. Area % of insulin granules in Langerhans islets of Bamhusae Caulis extract adminstration group increased and showed the statistically significant difference with the control group at 7th day and 14th day. 2. Area % of insulin granules in Langerhans islets of Raphani Semen extract adminstration group increased and showed the statistically significant difference with the control group at 14th day. 3. Area % of glucagon granules in Langerhans islets of Raphani Semen extract adminstration group decreased and showed the statistically significant difference with the control group at 14th day. With the above result, we know that Bambusae Caulis and Raphani Semen has a control effect on glucagon and insulin granules in Langerhans islets of diabetic rats induced by streptozotocin.
野冬靑果가 實驗的 糖尿에 미치는 影響에 관한 免疫組織化學的 硏究
柳濟原,李學仁,金蓮燮 대한본초학회 1999 大韓本草學會誌 Vol.14 No.1
This experiment was performed into investigate the effect of Syzygii cumini Fructrs on the diabetic rats induced by STZ. Experimental diabetes was induced by 55㎎/㎏ of STZ. injection and administered Syzygii cumini Fructrs extract during 14days after STZ injection. Glucagon and insulin granules in Langerhans islets were stained by use of immunohistochemical method and observed the relative amount of the each granules in Langerhans islet by light microscope and image analysis ststem. The results obtained are as follows: 1. Area % of insulin granules in Langerhans islets in Syzygii cumini Fructrs raised and showed the statistically significant difference with the control group at 14th day. 2. Area % of glucagon granules in Langerhans islets in Syzygii cumini Fructrs decreased and showed the statistically significant difference with the control group at 7th and 14th day. To conclude, it can be inferred that Syzygii cumini Fructrs has a control effect on glucagon and insulin granules in Langerhans islets of diabetic rats induced by STZ.
Kim, Hyun-Wook,Choi, Yun-Sang,Choi, Ji-Hun,Han, Doo-Jeong,Kim, Hack-Youn,Hwang, Ko-Eun,Song, Dong-Heon,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2011 한국축산식품학회지 Vol.31 No.3
Ground pork containing 0, 1, 2, or 3% rice bran fiber was prepared. pH increased as the amount of rice bran fiber added increased (p<0.05) but decreased during storage. The lightness and redness values of the raw ground pork decreased with the addition of rice bran fiber, and ground pork containing 3% rice bran fiber had the highest yellowness value during early storage (p<0.05). Moreover, adding rice bran fiber was not associated with color stability during storage. Samples containing 2 or 3% rice bran fiber had improved cooking loss, hardness, gumminess, and chewiness. Furthermore, rice bran fiber enhanced tenderness, juiciness, and overall acceptability on a sensory evaluation. These physico-chemical properties were maintained to the final storage period. The best results were obtained with ground pork containing 2 or 3% rice bran fiber. Rice bran fiber combined with useful antioxidants may be a more effective approach to increase the stability of ground pork during cold storage.
Kim, Hack-Youn,Kim, Cheon-Jei,Han, Sung Gu,Lee, Sunah,Choi, Kyoung-Hee,Yoon, Yohan Korean Society for Food Science of Animal Resource 2014 한국축산식품학회지 Vol.34 No.1
This study evaluated the effects of frankfurter fat content on Listeria monocytogenes resistance to heat stress and gastric fluid, and the Caco-2 cell invasion efficiency of the pathogen. A 10-strain mixture of L. monocytogenes was inoculated on frankfurters formulated with 10%, 20%, and 30% fat content (10%: F10, 20%: F20, 30%: F30) and stored at $10^{\circ}C$ for 30 d. The samples were analyzed for L. monocytogenes resistance to heat stress and a simulated gastric fluid challenge. The total bacteria and L. monocytogenes survival rates were measured on tryptic soy agar plus 0.6% yeast extract and Palcam agar, respectively. L. monocytogenes colonies inoculated on F10, F20, and F30 samples were used for a Caco-2 cell invasion assay. In general, no obvious differences were observed between the survival rates of total bacteria and L. monocytogenes grown on different fat contents under heat stress and gastric fluid challenge. However, L. monocytogenes obtained from the F30 samples had a significantly higher Caco-2 cell invasion efficiency than those in the F10 and F20 samples (p<0.05). These results indicate that although high fat content in food may not be related to L. monocytogenes resistance to heat stress and gastric fluid, it may increase the Caco-2 cell invasion efficiency of the pathogen.
Kim, Hack-Youn,Kim, Kon-Joong,Lee, Jong-Wan,Kim, Gye-Woong,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2012 한국축산식품학회지 Vol.32 No.6
The aim of this study was to investigate the effect of chicken feet gelatin and wheat fiber levels on the quality characteristics properties of semi-dried chicken jerky. The obtained chicken feet gelatin swollen with hydrochloric solution (0.1 N HCl, pH $1.31{\pm}0.02$) was dehydrated via freeze-drying. Six formulations of chicken jerky that were prepared, based on the ratio of chicken meat, chicken feet gelatin and wheat fiber, were 100:0:0, 98:0:2, 99:1:0, 97:1:2, 98:2:0 and 96:2:2, respectively. The moisture content of semi-dried chicken jerky containing 2% wheat fiber was higher than that of jerky without the added fiber (p<0.05); moreover, an increase in the content of chicken feet gelatin also increased the moisture content. The drying yield of the samples increased with an increase in chicken feet gelatin. In addition, the drying yield of samples containing 2% wheat fiber was higher (p<0.05) than those without the added wheat fiber. However, the shear force of the samples significantly decreased with the increase in chicken feet gelatin content. Further, the shear force of the samples containing 2% wheat fiber was higher (p<0.05) than those without the added wheat fiber. No significant differences, except for color, were observed in the sensory analysis among the treatments.
Kim, Hyun-Wook,Choi, Ji-Hun,Choi, Yun-Sang,Kim, Hack-Youn,Han, Doo-Jeong,Kim, Tae-Hyun,Lee, Sung-Ki,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2011 한국축산식품학회지 Vol.31 No.3
This study was conducted to examine the effect of salt concentration in soybean sauce (ganjang) on pre-rigor ground Hanwoo (Korean native cattle) muscle. Although adding soybean sauce reduced pH of pre-rigor Hanwoo muscle, it improved the water holding capacity (WHC), cooking loss, total protein solubility, myofibrillar fragmentation index (MFI), 2-thiobar-bituric acid (TBA) values, and textural properties by increasing salt concentration in the soybean sauce. In particular, adding soybean sauce inhibited lipid oxidation despite increasing salt concentration. An increased salt concentration in the soybean sauce in pre-rigor Hanwoo muscle tended to make the meat have lower lightness and higher redness and yellowness values. Although soybean sauce had a significantly lower pre-rigor salting effect than sodium chloride in terms of cooking loss and total protein solubility (p<0.05), soybean sauce improved myofibrillar fragmentation and lipid oxidation when compared with sodium chloride. Furthermore, no significant differences in textural properties were observed between adding soybean sauce and sodium chloride at the same salt concentrations. Therefore, soybean sauce can be a functional curing material for pre-rigor muscle.
Kim, Hyun-Wook,Hwang, Ko-Eun,Song, Dong-Heon,Lee, Soo-Yeon,Choi, Min-Sung,Lim, Yun-Bin,Choi, Ji-Hun,Choi, Yun-Sang,Kim, Hack-Youn,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2013 한국축산식품학회지 Vol.33 No.1
Brewer's spent grain (BSG) is a by-product of beer manufacturing. This study was conducted to evaluate the effect of dietary fiber extracts from brewer's spent grain on quality characteristics of chicken patties. The total fiber content of BSG dietary fiber extracts after extraction increased from 58.11% to 68.57%, and the extracted dietary fiber extracts were added to chicken patties at 0, 1, 2, 3, and 4%, respectively. The effects of the BSG dietary fiber extracts on pH, color, cooking loss, reduction in patty diameter, salt-soluble protein solubility, texture, and sensory characteristics of chicken patties were evaluated. The addition of BSG dietary fiber extracts decreased pH and lightness values, and increased redness and yellowness. Chicken patties formulated with 3-4% BSG dietary fiber extracts had the lowest cooking loss among all treatments (p<0.05). The diameter of chicken patties was not affected by the addition of BSG dietary fiber extracts. Additionally, no significant difference was observed in salt-soluble protein solubility after adding 3% BSG dietary fiber extracts compared to that in the control. Textural and sensory properties were different among the chicken patties, and the 3% BSG dietary fiber-added chicken patty had the highest acceptability. Our results indicate that 3% BSG dietary fiber extract can be used as a good source of dietary fiber for improving the quality characteristics of chicken patties.
Effects of Fat Levels on Changes in Flavor Pattern of Irradiated Pork Patties
Kim, Hyun-Wook,Choi, Ji-Hun,Choi, Yun-Sang,Kim, Hack-Youn,Lee, Mi-Ai,Choi, Sun-Mi,Song, Dong-Heon,Lee, Ju-Woon,Kim, Cheon-Jei 한국식품과학회 2012 Food Science and Biotechnology Vol.21 No.6
The effects of fat levels on changes in flavor pattern of irradiated pork patties were evaluated by using electronic nose. Total peak amount decreased with increasing fat level and irradiation dose, and the increased fat level and irradiation dose influenced the formation of new peaks at latter retention time. For the principal component analysis, the irradiated pork patties with containing higher fat level were clearly separated from the other treatments. The irradiation dose also affected the position of spot in identical fat level. It is possible to distinguish the changes in flavor patterns due to fat content and irradiation dose by using electronic nose.
Effects of Sea Tangle (Lamina japonica) Powder on Quality Characteristics of Breakfast Sausages
Kim, Hyun-Wook,Choi, Ji-Hun,Choi, Yun-Sang,Han, Doo-Jeong,Kim, Hack-Youn,Lee, Mi-Ai,Kim, Si-Young,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2010 한국축산식품학회지 Vol.30 No.1
Breakfast sausages containing 1, 2, 3, and 4% sea tangle powder (Lamina japonica) were prepared. No differences were found in moisture, protein, and fat contents among the control and treatments. However, the ash content increased with increasing amounts of sea tangle powder (p<0.05). The pH levels in the treated samples were lower than the control in both the meat batters and the breakfast sausages (p<0.05). The $L^*$ and $a^*$ values of the meat batters and breakfast sausages were decreased by the addition of the sea tangle powder, and the control had the highest $b^*$ value (p<0.05). The added sea tangle powder improved cooking loss and improved emulsion stability. The T4 sample (containing 4% sea tangle powder) was shown to have the lowest cooking loss and water loss (p<0.05). The hardness, gumminess, and chewiness of the treatments increased compared to the control due to the presence of dietary fibers in the sea tangle. In the sensory evaluations, the 1% sea tangle powder treatment received a lower color score, but received significantly higher scores for flavor, tenderness, and juiciness (p<0.05). Collectively, the breakfast sausage containing 1% sea tangle powder was determined to have the highest overall acceptability. Altogether, the best results, in terms of physicochemical and sensory properties, were obtained for the breakfast sausage containing 1% sea tangle powder.
Effects of Soybean Sauce and Pre-rigor Muscle on Physicochemical Properties of Frozen Hanwoo Patties
Kim, Hyun-Wook,Choi, Ji-Hun,Choi, Yun-Sang,Han, Doo-Jeong,Kim, Hack-Youn,Lee, Mi-Ai,Kim, Si-Young,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2011 한국축산식품학회지 Vol.31 No.1
In this study, we evaluated the physicochemical and sensorial properties of frozen Hanwoo beef patties prepared from prerigor and post-rigor muscle with soybean sauce or sodium chloride. The pH of the soybean sauce treatments was lower than the sodium chloride treatments (p<0.05); however, the Hanwoo patty prepared from pre-rigor muscle with soybean sauce had a lower cooking loss and smaller diameter than the Hanwoo patty prepared under the same conditions from post-rigor muscle (p<0.05). The addition of the soybean sauce inhibited lipid oxidation due to the antioxidative materials in soybean sauce such as melanoidin. The hardness of patties prepared from pre-rigor treatment was lower relative to those prepared from post-rigor muscle (p<0.05); however, there was no significant difference between springiness, cohesiveness, and chewiness (p>0.05). In the sensory evaluation, patties prepared from pre-rigor muscle with soybean sauce had a significantly high score in all traits (p<0.05); thus, pre-rigor muscle with soybean had the highest overall acceptability. Furthermore, the addition of soybean sauce to pre-rigor muscle produced similar effects as those observed for the addition of sodium chloride in regards to psychochemical properties. Moreover, meat products produced from pre-rigor muscle will have better antioxidative and sensorial properties.