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Effects of Maltogenic Amylase on Textural Properties of Dough and Quality Characteristics of White Pan Bread (Maltogenic Amylase가 식빵반죽의 물성과 식빵의 품질 특성에 미치는 영향)

  • Yoon, Seongjun;Cho, Namji;Lee, Soo-Jeong;Moon, Sung-Won;Jeong, Yoonhwa
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.5
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    • pp.752-760
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    • 2015
  • Effects of maltogenic amylase on textural properties of dough and quality characteristics of white pan bread were investigated. White pan bread was prepared with four different levels of maltogenic amylase contents (M-1: 0.048 U/g, M-2: 0.060 U/g, M-3: 0.072 U/g, M-4: 0.084 U/g). The setback by amylograph for the control was $480.0{\pm}12.25$ Brabender Unit (B.U.) while M-4 showed the a setback of $215.0{\pm}5.00B.U.$ The absorption, mixing tolerance index, and stability by farinogram were not significantly different (P>0.05) for across all treatments. The area under the curve (135 min) by extensogram was higher than all samples. The texture profile analysis results showed that there was significant decreasing in hardness for the maltogenic amylase infused bread (P<0.05). M-3 and M-4 showed higher springiness and cohesiveness but lower hardness than control over 1 to 3 days, indicating possibly extended shelf-life. Imaging scan showed that air cell size less than $0.4mm^2$ for the control and M-4 were at rates of 94.90% and 95.70%, respectively. For sensory evaluation, M-3 and M-4 showed higher intensities than the control for taste, flavor, texture, mouthfeel, and moistness quality. These results imply that the quality of white pan bread could be improved by adding maltogenic amylase without the use of chemical additives.

Effect of Trichosanthes kirilowii Extract on the Inflammatory Response Induced by Lipopolysaccharide in Broiler Chickens (화분(Trichosanthes Kirilowii ext.)추출물이 LPS를 처리한 육계 병아리의 염증반응에 미치는 영향)

  • Hong, Yeung-Pyo;Choi, Il;Lee, Eun
    • Korean Journal of Plant Resources
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    • v.25 no.4
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    • pp.482-489
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    • 2012
  • Effect of Trichosanthes kirilowii extract on the inflammatory responsse was investigated in the lipopolysaccharide (LPS)-treated broiler chickens. Plasma ceruloplasmin and ${\alpha}$-acidic protein concentrations of all the experiment groups were increased at 3, 9 and 24h after LPS treatment. Plasma ceruloplasmin and ${\alpha}$-acidic protein concentrations of Trichosanthes kirilowii extract groups were lower than those of control group. Plasma nitrogen oxide concentration of all the experiment groups was rapidly increased at 3h after LPS treatment. However, plasma nitrogen oxide concentration was decreased at 3 and 9h after LPS treatment with increasing amount of Trichosanthes kirilowii extract added. Liver IL-2 mRNA concentration of all the experiment groups was rapidly increased at 2h after LPS treatment, and then gradually decreased to the level similar to that before LPS treatment at 9h after LPS treatment. Liver IL-2 mRNA concentration of Trichosanthes kirilowii extract groups were lower than that of control group. Spleen IL-2 mRNA concentration was the highest at 4h after LPS treatment in all the experiment groups. Spleen IL-2 mRNA concentration of 0.2 and 0.3% Trichosanthes kirilowii extract groups were higher than that of 0.1% Trichosanthes kirilowii extract group and control group at 3 and 4h after LPS treatment. Liver and spleen IFN-${\gamma}$ mRNA concentrations were increased at 2 and 3h after LPS treatment, decreased at 4h after LPS treatment, and then reached to the level similar to that before LPS treatment at 9h after LPS treatment. Liver and spleen IFN-${\gamma}$ mRNA concentrations of Trichosanthes kirilowii extract group were lower than those of control group at 2h and 3h after LPS treatment. Liver and spleen iNOS mRNA concentrations were the highest at 3h after LPS treatment, and then decreased to the level similar to that before LPS treatment at 9h after LPS treatment. Liver and spleen iNOS mRNA concentrations of Trichosanthes kirilowii extract groups were lower than those of control group at 2, 3 and 4h after LPS treatment.