University education is a basic stage of engineers’ cultivation. The purpose of this paper is to draw instructive conclusions by analyzing differences between Chinese and foreign universities on civil engineering undergraduate education. Teaching methods were taken into consideration. Statistical data in thirty famous universities in China, US and Europe were collected. After comparing differences of civil engineering curriculums from selected colleges, four aspects were analyzed such as the total number of teaching hours, course structure, general education curriculum and practical teaching. It is obvious that specialized courses are taken seriously in Europe universities while general education lessons are valued in American universities. There are also many differences among universities in three regions when referring to approaches of practical teaching.
The effect of coconut water contents, sucrose and ammonium sulfate concentrations, cultivation modes on the growth of Gluconacetobacter xylinus Y15 was investigated. When 25%(V/V) coconut water, 3g/L (NH4)2SO4 was added into the medium without sucrose, and G. xylinus Y15 was cultivated in shake flask culture at 130r/min for 24h, the cell number could reach as high as 4.9×108CFU/mL, while the cell number was only 4.9×104CFU/mL when cultivated in static culture. The growth curves of G. xylinus Y15 in coconut water medium and HS [ medium in shake flask culture were compared. The lag phase of G. xylinus Y15 in coconut water medium was 20h shorter than in HS medium, and the log phase was 20h longer.
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