Cordyceps militaris is a valuable medicinal mushroom that has been interested in research by scientists around the world, which has high value in promoting health, immunoregulatory, antioxidant, anti-inflammatory and cancer prevention. Following our previous research, the extraction process in pilot scales was built on the results of the project Nguyen Tat Thanh University “Research and propose the process of extracting extracts from Cordyceps militaris in Kon Tum province”, which was deployed and accepted in 2020. After evaluating the quality characteristics of raw powder materials, the condition of concentration and preservation of Cordyceps militaris extract was conducted. To achieve the required moisture (<20%), it was necessary to concentrate Cordyceps militaris extract at three standards: 60°C, 70°C and 80°C in 150 minutes, 120 minutes and 105 minutes, respectively. Considering the three standards, it was found that the cordycepin content at 80°C was statistically significantly lower than the remaining two temperature landmarks. Concentrate the extract at 70°C for 120 minutes to obtain a concentrated extract with cordycepin content of 2938.97 ± 94.66 (µg / g DW) with the moisture content of 8.78 ± 1.95 (%).
The impact of foreign direct imvestment (FDI) on economic growth is still a highly controversial issue as remarked by many researchers (Aitken et al.; 1997; Carkovic & Levine, 2002; Bende-Nabende et al., 2003; Durham, 2004; and Hsiao, 2006). Using a panel dataset of 43 provinces in Vietnam during 1997 – 2012 and the Granger causality test by Arellano-Bond GMM and PMG estimation, this paper shows that: (i) FDI does Granger-cause private investment, human resources, taxation, infrastructure, trade openness and local technology; (ii) FDI has a positive impacts on provincial economic growth in the long term; and (iii) FDI flows vary over provinces due to differences in geographical conditions and level of development.
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