Batch adsorption studies were undertaken with the abundantly available waste biosorbent Tectona grandis L.f. leaf powder for removal of cadmium(II) from aqueous solutions. The adsorption experiments were performed under various conditions such as time, temperature, different initial Cd(II) concentrations, pH, adsorbent dosage, and adsorbent particle size. The data showed that in 30 minutes, 1 g...

This work reports the influence of different culture preservation methods on the production of penicillin G acylase (PGA) by Bacillus megaterium ATCC 14945. The initial stock culture, presenting PGA activity of 97 IU l, was preserved for two years using different procedures: monthly subculturing and storage in refrigerator (S), freeze-drying using skim milk 10%, plus inositol 5% as cryoprotecto...

Nanofiltration performance as a function of feed temperature is relevant to several industrial settings including pretreatment for scale control in thermal desalination. Understanding of solute transport as a function of temperature is critical for effective membrane and system design. In this study, nanofiltration is modeled at 22, 40 and 50C using the Donnan Steric Pore Model with dielectric ...

Saffron corms are attacked by a wide variety of arthropod pest species and mites one them. Among Arachnida class bulb mite causes considerable damage to saffron crop presence this is regular feature in its cultivation. To record the occurrence mite, field study was conducted at different growing areas Kashmir. For biology pest, laboratory Department Entomology, Faculty Horticulture, Sher-e-Kash...

Carotenoids are known as provitamin A, while there is an increasing interest in their role as an antioxidants. Anti-cancer activity and other health benefits provided by β-carotene include the protection against cardiovascular disease and cataract prevention, Carrots are one of the best sources of β-carotene. In this paper we have studied the influence of particle size, temperature, solvents, s...

Royal jelly is a viscous jelly substance. It is partially soluble in water with a density of 1.1 g/mL. Its colour is whitish to yellow, the yellow colour increasing upon storage. Its odour is sour and pungent, the taste being sour and sweet. The sensory characteristics are important quality criteria. Old royal jelly, which has not been properly stored tends to be darker and a rancid taste can d...

Z. Naturforsch. 50c, 29-36 (1995); received August 29/September 30,1994 Cucumis (Germination), Integral Membrane Protein, Isoenzyme (Lipoxygenase), Lipoxygenase, Methyl Jasmonate, Plasma Membrane In cucumber cotyledons (Cucumis sativus L.) containing several soluble and particulate forms of lipoxygenase (LOX), the location of LOX forms in microsomes has been studied. We concentrated on the ques...

Heike Falkenhagen and Joachim Stöckigt Lehrstuhl für Pharmazeutische Biologie der Johannes Gutenberg-Universität Mainz, Institut für Pharmazie, Staudinger Weg 5, D-55099 Mainz, Bundesrepublik Deutschland Z. Naturforsch. 50c, 45-53 (1995); received September 26, 1994 Vomilenine, Vinorine, Vinorine Hydroxylase, Cytochrome P450, Rauwolfia serpentina Microsomal preparations from Rauwolfia serpentin...

P. He*, K. P. Bader, A. Radunz and G.H. Schmid Lehrstuhl für Zellphysiologie, Fakultät für Biologie, Universität Bielefeld, Postfach 10 01 31, D-33501 Bielefeld, Bundesrepublik Deutschland Z. Naturforsch. 50c, 781-788 (1995); received July 3/July 30, 1995 High C 0 2-Pressure, Mass Spectrometry, Tobacco, Photosynthesis, Photorespiration Wild type tobacco N. tabacum var. John William's Broadleaf ...