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Lan, Truong Thi Phuong,Huy, Nguyen Duc,Luong, Nguyen Ngoc,Quang, Hoang Tan,Tan, Trinh Huu,Thu, Le Thi Anh,Huy, Nguyen Xuan,Loc, Nguyen Hoang The Korean Society of Plant Biotechnology 2019 식물생명공학회지 Vol.46 No.3
The aim of this study is to evaluate the effect of yeast extract (YE) and salicylic acid (SA) on the expression of curcuminoid-biosynthesis genes (CzDCS and CURS1-3), and accumulation of curcumin in Curcuma zedoaria cell cultures. The results showed that, in cells treated with YE or SA, the expression levels of curcuminoid genes were 1.14- to 3.64-fold higher than the control (untreated cells), in which the YE exhibited a stronger effect in comparison with SA. Curcumin accumulation also tended to be similar to gene expression, curcumin contents in YE- or SA-treated cells were 1.61- to 2.53-fold higher than the control. The SA treatment at the fifth day of culture stimulated the curcumin accumulation and expression in all four genes compared to that at the beginning. While the YE treatments gave different results, the CzCURS1 and CzCURS3 genes were expressed strongly in cells that were treated at the beginning. However, the CzDCS and CzCURS2 genes showed the opposite expression pattern, they were activated strongly in the treatments at day five of the culture. However, the content of curcumin reached its maximum value on the fifth day of culture in all investigations.
Hoang Thi Lan Anh,Le Thi Thanh Hue,Bui Nguyen Hai Linh,Trinh Thanh Trung 한국미생물학회 2023 미생물학회지 Vol.59 No.2
Consumer demand for high-quality and safe fermented meat products is increasing recently, with great attention on functional starter cultures using lactic acid bacteria (LAB). This study aimed to select autochthonous LAB strains that have beneficial effects for human health and technological properties for the production of lap xuong, a traditional fermented sausage of ethnic minorities in northwestern Vietnam. From nine lap xuong samples, 63 LAB strains were isolated and identified into 14 species belonging to 8 genera. Latilactobacillus sakei was the most common species, followed by Lactiplantibacillus plantarum, Lactococcus lactis, and Pediococcus pentosaceus. Five strains of Enterococcus faecium LM0204, Lactococcus lactis LM0302, Latilactobacillus sakei LM0405, Lactiplantibacillus plantarum LM0705, and Lactiplantibacillus plantarum LM0901 exhibited probiotic properties, including tolerance to gastrointestinal tract conditions, adhesion ability to HT-29 cell line, antagonistic activity against harmful bacteria, and antioxidant activities. The strains were further evaluated for technological and safe properties, such as gas production, growth at different temperatures and simulated fermentation and ripening stages, lactic acid production, biogenic amine production, and antibiotic susceptibility. Enterococcus faecium LM0204 and Lactococcus lactis LM0302 were excluded because of tyramine production or unable growth in simulated fermentation conditions. All together probiotic properties and better technical functionality, Latilactobacillus sakei LM0405 and Lactiplantibacillus plantarum LM0705 were proposed as starter cultures for sausage production in northwestern Vietnam. Further studies are needed to standardize the sensory quality and safety aspects of lap xuong in this area using the proposed starter cultures strains for making fermented sausage.
Lan Thi Hoang BUI,Phi-Hung NGUYEN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.9
Rapid economic growth in recent years has caused a surge in energy consumption among Southeast Asian countries and laid a considerable burden on the already inadequate power infrastructure. As a result, frequent blackouts and prolonged outages have become common and weakened firm productive performance in those years. The main objective of this study is to examine the impact of power infrastructure quality on the performance of Southeast Asian manufacturing firms. In this study, the World Bank Enterprise Surveys was employed as the training dataset of 4723 manufacturing firms in the period of 2015–2016. The results of this study reveal that industrial firms that suffered from power outages had consistently lower productivity. As measured by the length of such events, more severe outages tend to be more harmful to the firm. Furthermore, the findings also indicated that most firms relied on self-generated electricity to reduce the negative impact of power outages, but this does not bring many benefits when operating at a small scale in some countries. Consequently, this study contributes to a growing literature that examines the economic impact of public infrastructure and how detrimental the poor state of such services is to a firm’s downstream operations, productivity, and growth.
The distribution channel, strategic factor and firm performance: Evidence from FDI enterprises
Lan Thi Hoang BUI,Dat Ngoc NGUYEN 한국유통과학회 2021 유통과학연구 Vol.19 No.10
Purpose: Research on the development of distribution channels and the strategy will help businesses develop competitiveness in the market. At the same time, the excellent effect of distribution channels and the outstanding implementation of business strategies will help optimize firm performance. Therefore, this study helps to evaluate the influence of distribution channels, and strategy factors on the performance of FDI enterprises in Vietnam. Research design, data, and methodology: Research using quantitative method with PLS-SEM model based on 210 samples using Smart-PLS3. software. The survey subjects are corporate managers who understand the strategies, distribution channels, and performance in Vietnamese FDI enterprises. Results: The analysis results show that strategy factors have a positive effect on firm performance, and distribution channel also has a positive impact on firm performance. This result also indicates that distribution channels activity as an intermediary between strategy and firm performance. Conclusion: The study also gives some policy implications on strategy and distribution channels to improve firm performance. The strategic implementation of finance, human resources, risk, innovation, and diversification of distribution channels are implications for improving firm performance in FDI enterprises. In addition, the research has contributed to the relationship between the distribution channels and firm performance.
Ho Hoang Lan,Nguyen Thanh Trung 단국대학교 융합사회연구소 2017 공공정책과 국정관리 Vol.11 No.3
Remittance inflows are believed to be one of the most potential resources for economic growth in developing countries. However, the promising impact of remittances on investment has not been clearly agreed. This research aims to investigate the relationship between remittances and investment in nine developing countries including Vietnam in the period of 2000-2015. By using panel econometric method and descriptive analysis, the result indicates that remittances have positive impact on domestic investment. This study demonstrates the situation of remittance - investment nexus in Vietnam in recent years and suggests some implications for Vietnamese policies based on the empirical results.