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Articles by Dewi Febrina
Total Records ( 5 ) for Dewi Febrina
  Dewi Febrina , Novirman Jamarun , Mardiati Zain and Khasrad
  Background and Objective: The utilization of oil palm fronds (OPFs) as feed is limited due to their high lignin content. The biodelignification of OPFs with Phanerochaete chrysosporium plus the elements Ca and Mn can break down lignocellulose and lignin hemicellulose bonds. Supplementation of fermented oil palm fronds (FOPFs) with P, S and Mg results in the highest microbial protein synthesis and VFA concentration. The objective of this study was to evaluate the effect of supplementation with phosphorus, sulfur and magnesium in goat rations containing fermented oil palm fronds (FOPFs; fermented by Phanerochaete chrysosporium) on nutrient digestibility. Materials and Methods: This research was carried out using a randomized block design with 5 treatments and 3 replications. The following treatments were performed: A = 40% Napier grass (NG)+0% FOPFs+60% concentrate; B = 20% NG+20% FOPFs+60% concentrate; C = 0% NG+40% FOPFs+60% concentrate; D = 20% NG+20% FOPFs +60% concentrate plus P, S and Mg and E = 0% NG+40% FOPFs+60% concentrate plus P, S and Mg. The data were analyzed using a one-way analysis of variance (ANOVA) and differences between treatments were tested using Duncan's multiple range test (DMRT).The observed parameters were digestibility of the nutrients. Results: Supplementation with phosphorus, sulfur and magnesium in goat rations that contained fermented oil palm fronds by Phanerochaete chrysosporium at concentrations of 40 and 60% resulted in the highest digestibility of the nutrients. Conclusion: Supplementation with P, S and Mg in goat rations containing FOPFs is indispensable for the growth and activity of rumen microbes.
  Dewi Febrina , Novirman Jamarun , Mardiati Zain and Khasrad
  The objective of this study was to evaluate the effects of sulfur, phosphorus and magnesium supplementation of oil palm fronds fermented by Phanerochaete chrysosporium on rumen fluid characteristics and microbial protein synthesis. This research was carried out using a randomized block design with 4 treatments and 4 replications. The following treatments were performed: A = fermented oil palm fronds (FOPFs); B = FOPFs+0.4% P; C = FOPFs+0.4% P+0.3% S and D = FOPFs+0.4% P+0.3% S+0.1% Mg. The data were subjected to analysis of Variance (ANOVA) and differences between treatments were tested using Duncan's Multiple Range Test (DMRT). The observed parameters were microbial protein synthesis and rumen fluid characteristics. Supplementation of FOPFs with P, S and Mg resulted in the highest microbial protein synthesis and VFA concentration.
  Dewi Febrina , Novirman Jamarun , Mardiati Zain and Khasrad
  The objectives of the study were to evaluate the effects of calcium and manganese supplementation during oil palm frond fermentation by Phanerochaete chrysosporium on in vitro digestibility and rumen fluid characteristics. This research used a Completely Randomized Design comprising two factors as treatments and each treatment was repeated three times. The factors were Ca dose (1.000, 2.000 and 3.000 ppm) and Mn dose (50, 100 and 150 ppm). The data were analyzed using analysis of variance to measure the differences among treatments; Duncan's Multiple Range Test was used to determine the significance of differences. The parameters measured were as follows: digestibility of dry matter (%), organic matter (%), Neutral Detergent Fibre (NDF) (%), Acid Detergent Fibre (ADF) (%), cellulose (%) and hemicellulose (%). The rumen fluid characteristics considered included the following: pH and the concentrations of NH3 (mM) and Volatile Fatty Acid (VFA) (mM). The results indicated interactions between Ca and Mn in relation to the digestibility of dry matter, organic matter, NDF, ADF, cellulose, pH, NH3 and VFA concentration of rumen fluid. The optimal combination of the minerals used were 2.000 ppm of Mn and 150 ppm of Ca; these values yielded the highest values of digestibility of dry matter (41.914%), organic matter (40.990%), NDF (66.429%), ADF (64.396%) and cellulose (68.524%) and the highest concentration of VFA (117.302 mM).
  Dewi Febrina , Novirman Jamarun , Mardiati Zain and Khasrad
  Objective: The objective of this study was to evaluate the effect of substituting Napier Grass (NG) with Fermented Oil Palm Fronds (FOPFs) plus minerals (P, S and Mg) on consumption and growth performance of goats. Materials and Methods: This study was carried out using a randomized block design with 5 treatments and 3 replications. The treatments for this study were: A = 40% NG+0% FOPFs+60% concentrate, B = 20% NG+20% FOPFs+60% concentrate, C = 0% NG+40% FOPFs+60% concentrate, D = 20% NG+20% FOPFs+60% concentrate plus P, S and Mg and E = 0% NG+40% FOPFs+60% concentrate plus P, S and Mg. The data were analysed using a one-way analysis of variance (ANOVA) and Duncan's Multiple Range Test (DMRT) was used to test the differences between treatments. The observed parameters were feed consumption and growth performance of goats. Results: The results of the study show that substituting NG with FOPFs (100%) plus minerals (P, S and Mg) in goat rations (treatment E) showed the highest nutrient consumption and average daily weight gain and the lowest feed conversion. Conclusion: It is concluded that FOPFs can be used as an alternative to NG in goat rations.
  Dewi Febrina , Rahmi Febriyanti , Syukria Ikhsan Zam , Jully Handoko , Abdul Fatah and Jepri Juliantoni
  Background and Objective: Oil palm fronds are palm oil plantation waste material that can be utilized as feed and have antioxidant and antibacterial activity. This study was conducted to examine the antibacterial activity and identify the components of the ethanol extract of oil palm fronds. Materials and Methods: Oil palm frond extraction was performed using the maceration method in 96% ethanol. Identification of the extract was performed by phytochemical screening and antibacterial activity tests involved the paper disc method with a 5% extract concentration. The test bacteria were Escherichia coli and Staphylococcus aureus. Measurements were made through observation and the results were then compared with those in the literature. Antibacterial activity was measured according to the zone of inhibition based on the diameter of the clear zone formed around the well. Results: The maceration process using 96% ethanol resulted in 30.65 g of extract. Oil palm fronds contained tannins and steroids according to phytochemical screening. Oil palm ethanol extract has antibacterial activity against Staphylococcus aureus and Escherichia coli, with low activity (2 mm zone of inhibition). Conclusion: The results of this study indicate that oil palm frond extract can be utilized as a natural antibacterial source.
 
 
 
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