45 articles for “Yuanda Song”

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Research ArticleOpen accessIn the author namesConversion of Mutton Fat to Cocoa Butter Equivalent by Increasing the Unsaturated Fatty Acids at the Sn-2 Position of Triacylglycerol Through Fermentation by Yarrowia LipolyticaDan Xiong, Huaiyuan Zhang, Yifang Xie et al.Mutton fat has a similar fatty acid profile with Cocoa Butter (CB), except that its degree of unsaturation of Triacylglycerol (TAG) at the Sn-2 position is considerably lower than CB and maybe increased by Sn-2 specific lipase to produce Cocoa Butter Equivalent (CBE), a healthy functional lipid. However, there is no commercially available Sn-2 specific lipase that can be used … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 2 · 4 Mar 2015 · 8,698 accessesView PDF Cite

Research ArticleOpen accessIn the author namesProcess Intensification for Production and Recovery of Biological ProductsHamideh Vaghari, Maryam Eskandari, Vahideh Sobhani et al.Bioprocesses are important biological reactions which need several sophisticated methods and equipment to produce many novel and important compounds which some of them are traditionally produced by synthetic chemical reactions. In bioprocesses, the products are often produced in a dilute environment and finally they require a high purity. Because of that, downstream processes are usually included a large number of … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 1 · 29 Jan 2015 · 8,124 accessesView PDF Cite

Research ArticleOpen accessIn the author namesAntibacterial Activity of Lotus Leaves (Nelumbo Nucifera) Against Food-Borne PathogensJianxin Chen, Changyin Wang, Xiaotian Chen et al.The antibacterial activity of different solvent extracts from lotus leaves against four food-borne bacteria (Escherichiacoli, Salmonellatyphimurium, Staphyloccocusaureus, Bacillussubtilis) was analyzed by agar diffusion method and the ethanol extract of the plant was found to have the highest antimicrobial activity with the diameter of inhibition zones ranging from 17.2 to 17.8 mm. Then the ethanol extract of lotus leaves were further … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 1 · 18 Nov 2014 · 10,152 accessesView PDF Cite

Research ArticleOpen accessIn the author namesMOLECULAR SWITCH THAT CONTROLS THE FLUX OF LINOLEIC ACID INTO N-6 OR N-3 POLYUNSATURATED FATTY ACIDS IN MICROORGANISMSMingxuan Wang, Jianxin Chen, Huaiyuan Zhang, Yuanda SongPolyunsaturated Fatty Acids (PUFA) of the n-6 and n-3 series play important roles in nutrition. Microorganisms are important sources of n-6 and n-3 fatty acids; however, most produce either n-6 or n-3 fatty acids as the major PUFAs and very few produce both. This differential production suggests that PUFAs metabolic pathway is strictly controlled in microorganisms. The major pathway of … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 2 · 2 Jul 2014 · 7,131 accessesView PDF Cite

Research ArticleOpen accessIn the author namesHigh Incidence of Disorder-Promoting Amino Acids in the Amino Terminus of Mature Proteins in Bacillus subtilisGuangqiang Wang, Yining Dong, Haiqin Chen et al.Problem statement: Exported polypeptides are usually synthesized as preproteins which are composed with mature domains and the signal peptides. The foreign proteins are usually inefficiently secreted by the aid of signal peptides. Although we know that the mature protein played an important role in the protein export process, we do not know what properties of the mature domains are critical … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 4 · 2 Feb 2012 · 8,255 accessesView PDF Cite