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- 저자 : Luna Dong (검색결과 2 건)
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Effect of Freezing Methods on the Properties of Freeze-Dried Ap
Juan Javier Quino Luna,Jiseon Lee,Dong-Hyun Park,Eun-Young Ko,Mi-Jung Choi 한국산업식품공학회 2016 학술대회 및 심포지엄 Vol.2016 No.10
The freezing process of the freeze-drying procedure is important to optimize the physic-chemical properties of agricultural product. Therefore, our study was carried out to study the effect of freezing methods on the properties of freeze-dried apples. The sliced apples was frozen at -18°C as a general refrigerator (GR), -30°C with a individual quick freezing machine (IQF), and -80°C with deep freezer (DF), and subsequently, each sample was sublimated under 0.1 mbar for 24 hours. The samples were characterized by determination of color, texture properties, sugar contents, and morphology observation. The quality of color (L*, a* and b*) did not show significant discoloration. The hardness and sugar contents of IQF samples showed the greater value than GR and DF one. The morphology of IQF samples displayed the uniform and relatively small pore size as compared to GR and DF samples. From the sensory test, the IQF samples obtained the high score for overall acceptability, and consumer preference. From our results, the IQF treated apples are best results to produce good quality of freeze-dried apples.
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Yingjie Sun,Pin Zhang,Hang Zheng,Luna Dong,Lei Tan,Cuiping Song,Xusheng Qiu,Ying Liao,Chunchun Meng,Shengqing Yu,Chan Ding 대한수의학회 2018 Journal of Veterinary Science Vol.19 No.1
T-cell internal antigen-1 (TIA-1) has roles in regulating alternative pre-mRNA splicing, mRNA translation, and stress granule (SG) formation in human cells. As an evolutionarily conserved response to environmental stress, SGs have been reported in various species. However, SG formation in chicken cells and the role of chicken TIA-1 (cTIA-1) in SG assembly has not been elucidated. In the present study, we cloned cTIA-1 and showed that it facilitates the assembly of canonical SGs in both human and chicken cells. Overexpression of the chicken prion-related domain (cPRD) of cTIA-1 that bore an N-terminal green fluorescent protein (GFP) tag (pntGFP-cPRD) or Flag tag (pFlag-cPRD) induced the production of typical SGs. However, C-terminal GFP-tagged cPRD induced notably large cytoplasmic granules that were devoid of endogenous G3BP1 and remained stable when exposed to cycloheximide, indicating that these were not typical SGs, and that the pntGFP tag influences cPRD localization. Finally, endogenous cTIA-1 was recruited to SGs in chicken cells and tissues under environmental stress. Taken together, our study provide evidence that cTIA-1 has a role in canonical SG formation in chicken cells and tissues. Our results also indicate that cPRD is necessary for SG aggregation.
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