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Vo, Thanh-Sang,Ngo, Dai-Hung,Kim, Jung-Ae,Ryu, BoMi,Kim, Se-Kwon American Chemical Society 2011 Journal of agricultural and food chemistry Vol.59 No.22
<P>A peptide possessing antihypertensive activity was purified from Nile tilapia (<named-content content-type='genus-species' xlink:type='simple'>Oreochromis niloticus</named-content>) gelatin using alcalase, Pronase E, pepsin, and trypsin. Among them, the alcalase hydrolysate exhibited the highest angiotensin converting enzyme (ACE) inhibitory activity. Therefore, it was further analyzed, and a potent ACE inhibitory peptide of DPALATEPDPMPF (1382 Da) was separated and purified. In addition, the protective effect of the purified peptide against free radical-induced cellular and DNA damage in murine microglial cells (BV-2) was determined. These results suggest that the peptide isolated from Nile tilapia (<I>O. niloticus</I>) gelatin acts as a candidate against hypertension and oxidative stress and could be used in health-functional foods.</P>
Thanh-Sang Vo,김정애,Isuru Wijesekara,공창숙,김세권 한국식품과학회 2011 Food Science and Biotechnology Vol.20 No.5
The effect of solvent fractions from brown algae (Ishige okamurae) on allergic inflammatory reactions was investigated via measuring histamine release and cytokine generation in human basophilic KU812F cells induced by calcium ionophore A23187. Moreover, polyunsaturated fatty acids (PUFAs) profiles were identied and quantied in the most active fraction. It was found that n-hexane and ethyl acetate (EtOAc) fraction at 50 μg/mL significantly reduce histamine release with the release rates of 24 and 20%, respectively. Likewise, the suppressive effect of nhexane and EtOAc fraction on production as well as expression of interleukin (IL)-4 and IL-13 was determined. Notably, EtOAc fraction exhibited more effective inhibition than n-hexane in all assays. Furthermore, GC analysis revealed that EtOAc fraction contains various antiinflammatory PUFAs such as eicosapentaenoic acid,eicosatrienoic acid, linolenic acid, and γ-linolenic acid. Collectively, EtOAc fraction from brown algae could be a potential inhibitor of allergic inflammatory reactions in basophils that is suggested to be due to PUFAs.
Minh Sang VO,Ngoc Phu TRAN,Thi Kieu Thu NGUYEN,Thi Cam Tien HUYNH,Thi Kim Loi NGUYEN,Le Phuong Nghi THACH,Gia Nhu THAI,Thi Thanh Sang TRAN 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.4
This study intends to analyze the impact of the country of origin on the intention to ingest COVID-19 vaccinations by measuring Vietnamese people’s perceptions of India in the manufacture of COVID-19 vaccines. The research is done using a quantitative method, and primary data was obtained using a conventional manner based on the willingness of the research respondents, who are Vietnamese persons aged 18 and up, to contribute information. The findings revealed that perceived brand association and perceived brand quality directly positively impact the COVID-19 vaccine’s consumption intention and willingness. Meanwhile, while the perceived country image component has no direct effect on consumption intention, it does have a positive indirect effect on consumption intention through perceived brand linkage and perceived brand quality. The findings also emphasize the importance and significance of a country’s image in brand association and quality perception. The study’s findings imply that to increase consumers’ willingness to buy India’s COVID-19 vaccination, the country should develop communication initiatives to improve consumer perceptions of the country’s image, the perceived value of the brand association, and brand quality.