November 2008

Two-stage anaerobic digestion of aerobic pre-treated sisal leaf decortications residues: hydrolases activities and biogas production profile

  A two-stage system was investigated for anaerobic digestion (AD) of aerobically pre-treated sisal leaf decortication residue (SLDR) with regard to hydrolytic enzymes and biogas production. The system consisted of a solid-bed bioreactor for hydrolysis connected to methanogenic bioreactor packed with sisal fibre decortication residues (SFDR) as biofilm carriers. Some of the enzymes produced by microorganisms to...

Author(s): Anthony Manoni Mshandete, Lovisa Björnsson, Amelia Kajumulo Kivaisi, Mugassa Steven Thomas Rubindamayugi and Bo Mattiasson

November 2008

Study of sensitivity and ability of adenosine deaminase in response to pre-unfolding and especially pathological temperatures via changing the enzyme structure and activity

    Adenosine deaminase (ADA) is an important enzyme of the purine metabolic pathway, which catalyzes the conversion of adenosine and deoxyadenosine to their respective inosine derivatives plus ammonia, in a rapid and irreversible reaction. In this work, we studied the structural and kinetic properties of bovine ADA as a function of temperature in the range, 20 - 80°C by circular dichroism (CD) and...

Author(s): Mostafa Rezaei-Tavirani, Saeed Hesami-Takallu, Seyed Hassan Moghaddamnia, Shiva Kalantari, Bijan Ranjbar,  Seyedeh Zahra Moosavi-Nejad, Sayed-Amir Marashi, Mohammad Rahmati Roodsari and Farhad Malekzad