SUMMARY Xanthan gum is a polysaccharide that have many important properties in food processing and cosmetic additives. It is a beneficial source of fiber admitted by the FDA for use in human. Xanthan has been successfully produced and purified from liquid fermentation of Xanthomonas campestris Xan0813. In this study, the acute and subchronic to...
5 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 777 | Lượt tải: 0
SUMMARY Miraculin is a taste-modifying and low calorie protein isolated from the red berries of Richadella dulcifica, a shrub native to West Africa. In this study, a synthetic miraculin gene was designed to optimize its codon usage for BY-2 tobacco cell lines. This gene was inserted into two constructs including pBI121/HSPpro:Mir:HSP-ter that co...
6 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 745 | Lượt tải: 0
SUMMARY With the advanced properties such as excellent emulsifying activity, reducing surface tension, antitumor and immunomodulation, Rhodococcus biosurfactants have attracted a great deal of interest from biologists community. Development of optimized procedures for their biosynthesis would increased application potentials of Rhodococcus bios...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 766 | Lượt tải: 0
SUMMARY Since the 1980s, DNA marker techniques have been invented and developed quickly to become the most significant development in the field of molecular biology. The DNA markers have been widely used in study and selection of plants. The DNA techniques have been developed for DNA markers used in studies of genetic diversity, phylogeny, clas...
30 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 842 | Lượt tải: 0
SUMMARY This paper presented the result of the structural study of the actual plant mangrove forest communites in Xuan Thuy National Park. For the first time, the structure of six plant mangrove communities was analysized, the density of trees, generating stautus and rate were calculated by using standard plot and positioning plot methods. The ...
6 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 800 | Lượt tải: 0
SUMMARY Our survey and inventory of the threatened plant species have been carried based on Vietnam Red Data Book (2007) for all of the plant species existed in Ha Giang province. The total of 156 plant species belonging to 66 vascular plant families were identified and listed in Vietnam Red Data Book (2007), which is 36.6% of the total threate...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 972 | Lượt tải: 0
SUMMARY Hopea chinensis Hand-Mazz, Hopea hainanensis Merr. & Chun and Hopea mollissima C.Y.Wu are high value timber species and have high value in science and medicine. Currently, these three species are over exploited and are listed in the Red book. Typicaly, Hopea hongayensis and H. mollissima shared many very similar morphology characteristi...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 760 | Lượt tải: 0
Description: Macrobrachium phongnhaense is medium sized shrimp species, maximum length of collected specimens is 39 mm (female). Rostrum straight, reaching 5/7 distal margin of scaphocerite, 0.6 times as long as the carapace, dorsal margin armed with seven or eight teeth, including one to three teeth on carapace behind orbital margin; ventral ma...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 781 | Lượt tải: 0
Bacteria have an important role in the coral health, but is less studied. In order to clarify the question mentioned above, this paper is focusing on the correlation between the viral abundance and bacterial community characteristics (abundance, genetic diversity, activity) in the mucus of 12 coral species distribution in the Cat Ba and Long Cha...
8 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 759 | Lượt tải: 0
SUMMARY The serranid species composition of the family Serranidae recorded in coastal areas of Khanh Hoa are diverse with 36 species of 11 genera, which is 72% of the grouper species known from the coral reef of Vietnam (50 species), 50% of the known species from Vietnam's sea waters (72 species) and 29% of known grouper species from the East s...
10 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 1075 | Lượt tải: 0