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All published articles 911

Dynamic Principle of Center of Mass in Human Walking

Yifang Fan, Yubo Fan, Zhiyu Li, Mushtaq Loan & Changsheng Lv · Biotechnology Journal International · 2013

Assuming the ground reaction force of both feet to be the same in the same phase of a stride cycle, we establish the relationships between the time of initial foot contact and the ground reaction force, acceleration, velocity, displacement and average kinetic energy of center of...

Open access Research Article 10.9734/BBJ/2013/4724

Kinetic Study of Neem Biodiesel Production

M. Elkadi, A. E. Pillay, J. Manuel, S. Stephen & M. Z. Khan · Biotechnology Journal International · 2013

Aims: The kinetic features of neem biodiesel production were studied to establish the conversion parameters that govern optimal product yield in minimum reaction span. The mechanistic features of the dual acid/base catalytic conversion were investigated to gain an insight into th...

Open access Research Article 10.9734/BBJ/2013/4434

Optimization of Cellulase (E.C. 3.2.1: 4) Production Using Penicillium citrinum MTCC 9620 in Solid State Fermentation

G. Ghoshal, U. C. Banerjee & U. S. Shivhare · Biotechnology Journal International · 2013

Aim: The objective of the present work was to optimize the environmental parameters for Cellulase (1,4 β-endoglucanase, E.C.3.2.1:4) production using Penicillium citrinum MTCC 9620 in Solid State Fermentation. Study Design: One unit of Cellulase (1,4 β-endoglucanase, E.C.3.2.1:4)...

Open access Research Article 10.9734/BBJ/2013/4135

Constraining the Pluripotent Fate of Human Embryonic Stem Cells for Tissue Engineering and Cell Therapy – The Turning Point of Cell-Based Regenerative Medicine

Xuejun H. Parsons · Biotechnology Journal International · 2013

To date, the lack of a clinically-suitable source of engraftable human stem/progenitor cells with adequate neurogenic potential has been the major setback in developing safe and effective cell-based therapies for regenerating the damaged or lost CNS structure and circuitry in a w...

Open access Research Article 10.9734/BBJ/2013/4309

Establishment of Agrobacterium-Mediated Transformation System in Sweet Potato (Ipomoea batatas) by Culture of Leaf Segments for Functional Analysis of ASG-1, an Apomixis-Specific Gene

Lanzhuang Chen, Chengti Xu, Zhaosheng Du, Takuro Hamaguchi, Toru Sugita, Hiroaki Ichikawa & Liming Guan · Biotechnology Journal International · 2013

Aims: In order to do the functional analysis of apomixis-specific gene (ASG-1), which was isolated from apomictic guineagrass, the sweet potato was used to establish an Agrobacterium-mediated transformation system. Study Design: At first, plant regeneration was achieved from the...

Open access Research Article 10.9734/BBJ/2013/4582

Treatment of Wastewaters Generated by Surfactant-Enhanced Washing of Soils in an Aerobic Biofilter Inoculated with a Consortium of Hydrocarbon Degraders

M. Zacarías-Salinas, E. I. Garcia-Peña & L. G. Torres · Biotechnology Journal International · 2013

Aims: The aims of this work were 1) To evaluate the performance of a submerged biofiltration system for the treatment of a surfactant-enriched wastewater that had been generated by a soil washing process. 2) To evaluate the effect of the flux and organic load over the performance...

Open access Research Article 10.9734/BBJ/2013/4010

Efficient Micropropagation of Spilanthes acmella (L.) Murr.: A Threatened Medicinal Herb

Shiwali Sharma & Anwar Shahzad · Biotechnology Journal International · 2013

The present study describes an efficient and reproducible protocol for micropropagation of S. acmella. Shoot tips taken from 3 week-old aseptic seedlings were cultured on Murashige and Skoog (MS) semi-solid medium supplemented with different concentrations of TDZ. Among various c...

Open access Research Article 10.9734/BBJ/2013/3556

Characteristics of Penicillin G Acylase Immobilized onto Iron Oxide Nanoparticles

Momen Seyed Bahman, Atyabi Seyed Mohammad, Azim Akbarzadeh, Salimi Mona, Sedigeh Hatami Gigloo, Farhangi Ali & Norouzian Dariush · Biotechnology Journal International · 2013

Penicillin G acylase was immobilized onto iron oxide nanoparticles coated with polyethyleneimine and then cross linked with glutaraldehyde solution. The FTIR spectrum of immobilized enzyme showed peak at 1648cm-1 which can be attributed to the C=N bonds of Schiff’s base linkage f...

Open access Research Article 10.9734/BBJ/2013/2987

In vitro and In vivo Effects of the Leaf Extracts of Cassia tora and Cassia sophera in Reducing the Cytotoxicity and Angiogenesis

Sumangala Rao & C. Suresh · Biotechnology Journal International · 2013

Aim: Consumption of C. tora and C. sophera of family caesalpinaceae as leafy vegetables by local folklore has initiated this study to investigate the cytotoxic effect and antiangiogenic effect of their leaf extracts on human cancer cell lines and chick embryo respectively. Study...

Open access Research Article 10.9734/BBJ/2013/4244

SSR- Based Genetic Diversity Assessment in Tetraploid and Hexaploid Wheat Populations

Hanaa Mahdy Abouzied, Samah M. M. Eldemery & Kamal Fouad Abdellatif · Biotechnology Journal International · 2013

Molecular analysis for a set of hexaploid (Triticum aestvium) and tetraploid (Triticum durum) wheat cultivars was investigated by applying 11 SSR primers set. The plant materials consisted of 45 genotypes 15 of which were Triticum aestivum and 30 of T. durum obtained from four di...

Open access Research Article 10.9734/BBJ/2013/4340

Growth Inhibition of Some Phytopathogenic Bacteria by Cell-Free Extracts from Enterococcus sp

Luis C. Mata, Catalina Chavez, Raúl Rodríguez-Herrera, Daniel Hernández-Castillo & Cristóbal N. Aguilar · Biotechnology Journal International · 2013

Aims:  To inhibit of bacterial growth of three important phyto-pathogenic bacteria: Erwinia carotovora, Clavibacter michiganensis sp. michiganensis and Xanthomonas axonopodis by cell-free extracts from submerged cultures of two strains of Enterococcus sp. was tested. Study Design...

Open access Research Article 10.9734/BBJ/2013/3024

Light Microscopic and Immunohistochemical Study Revealed Sex-Dependent Kidney Morphology in DBA/2crSlc Mice

M. A. Awal, A. Yabuki, O. Ichii, M. Matsumoto, S. Suzuki & J. Alam · Biotechnology Journal International · 2013

Aim: Sex-dependent differences in kidney histology have been observed in different species of the laboratory animals. The present study was conducted to evaluate the sex and strain-dependent changes in DBA/2CrSlc mouse kidney morphology by using light microscopy and immunohistoch...

Open access Research Article 10.9734/BBJ/2013/3100