Search Results

You are looking at 151 - 160 of 724 items for :

  • "concentration" x
  • Architecture and Architectonics x
  • All content x
Clear All

): Effects of pH control and concentration on microbial oil production from Chlorella vulgaris cultivated in the effluent of a low-cost organic waste fermentation system producing volatile fatty acids . Bioresour. Technol. , 184 , 245 – 250

Open access

, Sigma-Aldrich) and promoting metal nitrate hydrate (Zn(NO 3 ) 2 · 6H 2 O, Al(NO 3 ) 3 · 9H 2 O, ZrO(NO 3 ) 2 · x H 2 O, Sigma-Aldrich) with desired mole ratio were dissolved in distilled water, and total metal concentration in the aqueous solution was 1

Restricted access

The antioxidant effects of seafennel (Crithmum maritimum L.) essential oil and rose (Rosa canina) methanol extract at different concentrations were tested in natural olive oil stored at 60 °C, by measuring peroxide values and free oil acidity after regular intervals. All concentrations of both plant extracts showed antioxidant effect compared with control in experiments. The most effective extracts were 0.4% level of rose. The 0.2% concentrations of rose extract and seafennel oil and 0.4% level of seafennel oil followed in a decreasing order, respectively. The 0.2% level of seafennel oil in olive oil had more effect than those of only 0.02% concentrations of butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT). Acidity values of seafennel oil at the 0.4% concentration were high compared with its 0.2% level. Acidity values of both rose concentrations were found partly similar.

Restricted access
Reaction Kinetics, Mechanisms and Catalysis
Authors: Bianca V. Sousa, Karoline D. Brito, José J. N. Alves, Meiry G. F. Rodrigues, Carlos M. N. Yoshioka, and Dilson Cardoso

catalysts by competitive ion exchange, forming mordenite zeolites with different concentrations of Pt, to evaluate the effect of the Pt concentration on the conversion, selectivity, mono- and di-branched production rate from n -hexane isomerization and to

Restricted access

Grant, C.A., Bailey, L.D., McLaughlin, M.J. & Singh, B.R. (1999): Management factors which influence cadmium concentrations in crops. - in: McLaughlin, M.J. & Singh, B.R. (Eds) Cadmium in soils and plants. Chapter 7 . Kluwer Academic Publishers

Restricted access

positive effect decreased by elevating the inulin concentration. The same trend was observed in samples containing stevia and the samples containing a combination of inulin and stevia. Additionally, due to the presence of rebaudioside A in stevia

Restricted access
Acta Alimentaria
Authors: Cs. Dobolyi, K. Inotai, I. Bata-Vidács, D. Sárkány, O. Csernus, S. Kocsubé, B. Tóth, A. Szekeres, and J. Kukolya

cereal products were collected and analysed in the UK by Leon et al. (2015) . ST was found in 4% of the investigated cereal samples at >0.5 μg kg −1 concentration, in line with the results of the wider EFSA survey of 1,142 cereal samples ( Mol et al

Open access

previously [ 2 ], and it was found to be 7.13 × 10 −5 [mol/s]/[W]. We monitored the model air pollutant concentration with a LANCOM III gas analyzer continuously at the reactor outlet in the dark (in fact it is equal to the feed concentration at the

Restricted access

dissolve fully, so it does not benefit the homogeneous polymerization. Second, with the increasing of the concentration of catalysts, the local temperature would increase rapidly in the course of polymerization, which may result in an increase of

Restricted access

will play a vital role as a cementitious material due to the high concentration of lime and gelignite. On the other hand, because of the problems, which are occurred in the subbase layer in roads and buildings in Iraq, many ways can be adopted to

Restricted access