Academia Journal of Biology
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Study on conditions of hydrolysis green seaweed Chaetomorpha limum by enzyme and application of inbioethanol production
Academia Journal of Biology - Tập 38 Số 2 - 2016
Chaetomorpha linum seaweed composes a high carbohydrate content, various types of polysaccharides, with 38% cellulose in material. In our paper, the material from Ch. linum was treated by enzyme L Visocozyme and we found optimized hydrolysis conditions, vis. enzyme concentration: 0.85 ml/g (42.5 IU/g), time: 33 hours, temperature: 50oC, and pH: 5.2. The hydrolysis results of Ch. linum were: 50.3 g......
Preliminary study of some development stages of the reproductive organs of Aegiceras corniculatum (L.) Blanco naturally growing in the coastal areas of north Vietnam
Academia Journal of Biology - Tập 27 Số 3 - Trang 33-38 - 2014
Aegiceras corniculatum (L.) Blanco (Myrsinaceae) is a mangrove species living in tropical and sub-tropical estuarine coastal areas, bearing many features of adaption to the environmental conditions, especially the reproductive organs. This paper presents the time of formation and development of buds, seeds and propagules. It takes about 10 months in total for seeds to form the propagules, to devel......
Prevalent infection of Paragonimus larvae in Yen Bai province
Academia Journal of Biology - Tập 28 Số 4 - 2014
An investigation for the Paragonimus larvae infection was conducted in 12 villages of 8 districts belonging to the Yenbai province in 2005. Paragonimus metacercariae were found in 3 villages: Khanhhoa, Anlac (Lucyen district) and Ngoia (Vanyen district). Only one mountainous crab species Potamiscus tannanti Rathbun served as the second intermediate host of Paragonimus in study sites. The infective......
A new species of the genus Plesiocoelus van Achterberg (Hymenoptera: Braconidae: Agathidinae) from Vietnam
Academia Journal of Biology - Tập 38 Số 3 - 2016
Plesiocoelus van Achterberg is a rare genus of the subfamily Agathidinae (Braconidae). The genus was established by van Achterberg in 1990 with one Neotropical species included, Plesiocoelus bassiformis van Achterberg, 1990. Based on specimens deposited at the Institute of Ecology & Biological Resources (IEBR) and Vietnam National Museum of Nature (VNMN), the genus Plesiocoelus van Achterberg ......
#Braconidae #Agathidinae #Plesiocoelus #new record #new species #Neotropical #Oriental #Vietnam
Agrobacterium–mediated transformation of cry3ca1 gene into kb1 sweet potato cultivar
Academia Journal of Biology - Tập 40 Số 2 - 2018
Sweet potato Ipomoea batatas (L.) Lam is an important food crop in the world as well as in Vietnam. Despite its many benefits, the production of sweet potato is restricted in many areas of the world by diseases, weed, and, particularly, pests. As an alternative, genetic transformation provides the means for complementing conventional breeding to improve sweet potato to resistant to pest. In this s......
#Agrobacterium tumefaciens #Ipomoea batatas L. #Cry3Ca1 gene #plant transformation #sweet potato weevil.
The characteristics of gmchi gene isolated from soybean cultivars with different isoflavone content
Academia Journal of Biology - Tập 38 Số 2 - 2016
In this study, isoflavone content of five soybean varieties disseminated grown in North Vietnam have been surveyed, and the GmCHI gene encoding chalcone isomerase, a key enzyme in metabolizing synthetic isoflavone in soybeans, was analyzed. Content of isoflavone (daidzein, genistein) in 3-day-old germinated seeds of soybean cultivar DT26 was the highest (64.27 mg/100g) and higher 2.18 times and 2.......
#Glycine max #daidzein #genistein #chalcone isomerase gene #isoflavones
A rat model of diabetic complications induced by high-fat diet and low-dose streptoxotocin injections
Academia Journal of Biology - Tập 35 Số 3 - 2013
Diabetes can cause micro- and macrovascular complications, which contribute greatly to the morbidity and mortality associated with the disease. Animal model of diabetic complications are widely used when studying the underlying mechanisms behind diabetic complications and consequences of the disorder. In this paper presented for the first time the development of a new rat model of diabetic complic......
#Complications #diabetes #high-fat diet #rat model #streptozotocin
Effect of hypoxia and high glucose on sodium channels in dorsal root ganglia neurons
Academia Journal of Biology - Tập 34 Số 1 - 2012
Hypoxia and hyperglycemia are considered as the leading causative factors of diabetes and frequently associated with several complications. Voltage-gated sodium channels are large trans-membrane proteins that contribute to the initiation and propagation of neuronal excitability associated with pain. Here we show that hypoxic and high glucose cellular environment increases the excitability of DRG n......
H\(_{2}\)O\(_{2}\) production in Lactobacillus strains isolated from the intestinal microbiome of healthy people
Academia Journal of Biology - Tập 42 Số 1 - 2020
Lactobacillus sp. in the digestive tract are capable of producing H2O2 to inhibit the growth of harmful bacteria and balance the gut microflora. In this study, we have isolated 115 strains of Lactobacillus spp. from stool samples of healthy people in Ha Noi. Of the 50 tested Lactobacillus strains, 9 strains were capable of producing H2O2, of which the Lac.VFE-14 strain produced highly H2O2 with a ......
#Lactobacillus #Staphylococcus aureus #H2O2 #bile salt #antimicrobial activity.
Study bioaccumulation of heavy metals Lead (Pb) and Cadmium (cd) in two bivalvia species (Anadara subcrenata Lischke and Meretrix meretrix Linnaeus) from estuarine in Da Nang city
Academia Journal of Biology - Tập 31 Số 3 - 2014
Bioindicators are species used to monitor the health of an environment or ecosystem. They are any biological species or group of species whose function, population, or status can be used to determine ecosystem or environmental integrity. Bioindicators can tell us about the cumulative effects of different pollutants in the ecosystem and about how long a problem may have been present, which physical......
#Bioaccumulation #Bivalvia #Anadara subcrenata #Meretrix meretrix #heavy metal
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