Optimisation of xanthan gum production by palm date (Phoenix dactylifera L.) juice by-products using response surface methodology

2010 ◽  
Vol 121 (2) ◽  
pp. 627-633 ◽  
Author(s):  
Riadh Ben Salah ◽  
Kacem Chaari ◽  
Souhail Besbes ◽  
Naourez Ktari ◽  
Christophe Blecker ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Xanthan Gum ◽  
Phoenix Dactylifera ◽  
Phoenix Dactylifera L ◽  
By Products

Optimization of Zinc Ions Removal by Modified Phoenix Dactylifera L. Seeds Using Response Surface Methodology

2019 ◽  
Vol 41 (1) ◽  
pp. 78-78
Author(s):  
Ainy Hafeez Ainy Hafeez ◽  
Syed Mohsin Ali Kazmi Syed Mohsin Ali Kazmi ◽  
Muhammad Sulaiman Muhammad Sulaiman ◽  
Chaudhry Haider Ali and Nadeem Feroze Chaudhry Haider Ali and Nadeem Feroze
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Contact Time ◽  
Metal Uptake ◽  
Date Palm ◽  
Phoenix Dactylifera ◽  
Zinc Ion ◽  
Ion Concentration ◽  
Design Expert ◽  
Phoenix Dactylifera L

The current study investigates the role of Phoenix Dactylifera L. (date palm) seeds as an effective biosorbent for removing Zn+2, a toxic heavy metal pollutant usually found in the waste streams of industries like fertilizer, mining and galvanizing etc. Date palm seeds were washed, dried, crushed in 170-300 um and modified by acidic treatment (0.1 MHNO3). The effect of most important parameters i.e., pH (3.5-6.1), initial zinc ion concentration (5-100mg/l), biosorbent dosage (0.1-1g) and contact time (0.5-60sec) have been studied via design expert software (version 8.0.6) of response surface methodology. The Box-Bhenken Design (BBD) was used in Response Surface Methodology (RSM) for designing the experiments and a number of 29 experiments were run. The model suggested by the design expert software was quadratic as it had maximum R2- value (0.9235) which indicated that the predicted values of quadratic model were best fitted to the experimental values. The significance of the factors was indicated by Analysis of Variance (ANOVA). The results showed that the metal uptake increased by increasing initial zinc concentration and decreasing in biosorbent dosage and pH while the contact time had negligible effect on the response surface. The parameters were numerically optimized and the optimum input parameters obtained were pH = 3.52, initial zinc ion concentration = 59.11ppm, biosorbent dosage = 0.1g and contact time = 60min with a metal uptake of 26.84mg/g. Therefore, (Phoenix Dactylifera L.) seeds substantially removed zinc ions under optimum conditions.

Optimization of ultrasound-assisted extraction of bioactive properties from date palm (Phoenix dactylifera L.) spikelets using response surface methodology

LWT ◽  
2021 ◽  
Vol 140 ◽  
pp. 110816
Author(s):  
Ibrahim A. Almusallam ◽  
Isam A. Mohamed Ahmed ◽  
Elfadil E. Babiker ◽  
Fahad Y. Al Juhaimi ◽  
Gbemisola J. Fadimu ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Date Palm ◽  
Phoenix Dactylifera ◽  
Ultrasound Assisted Extraction ◽  
Bioactive Properties ◽  
Assisted Extraction ◽  
Phoenix Dactylifera L ◽  
Ultrasound Assisted

scholarly journals Ultrasound-Assisted Extraction of Total Acetogenins from the Soursop Fruit by Response Surface Methodology

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1139 ◽  
Author(s):  
Gabriela Aguilar-Hernández ◽  
María de los Ángeles Vivar-Vera ◽  
María de Lourdes García-Magaña ◽  
Napoleón González-Silva ◽  
Alejandro Pérez-Larios ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Large Scale ◽  
Raw Material ◽  
Ultrasound Assisted Extraction ◽  
Fruit Peel ◽  
Optimal Method ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
By Products

The soursop fruit or Annona muricata (A. muricata) fruit is recognized by its bioactive compounds and acetogenins (ACG) are among the most important. The effect of ACGs, with greater importance in health, is that they present anti-tumor activity; however, the methods of extraction of ACGs are very slow and with a high expenditure of solvents. To our knowledge, there is no report of an optimal method for the extraction of acetogenins from the Annonaceae family by ultrasound-assisted extraction (UAE); therefore, the aim was to find the best UEA conditions of acetogenins from A. muricata fruit (peel, pulp, seed, and columella) by using response surface methodology. The effect of amplitude (40%, 70%, and 100%), time (5, 10, and 15 min), and pulse-cycle (0.4, 0.7, and 1 s) of ultrasound at 24 kHz was evaluated on the total acetogenin content (TAC). Optimal extraction conditions of acetogenins (ACGs) with UEA were compared with the extraction of ACGs by maceration. The optimal UEA conditions in the A. muricata pulp and by-products were dependent on each raw material. The highest TAC was found in the seed (13.01 mg/g dry weight (DW)), followed by the peel (1.69 mg/g DW), the pulp (1.67 mg/g DW), and columella (1.52 mg/g DW). The experimental TAC correlated well with the model (Adjusted R2 with values between 0.88 and 0.97). The highest effectiveness in ACG extraction was obtained in seeds and peels using UEA compared to extraction by maceration (993% and 650%, respectively). The results showed that A. muricata by-products are an important source of ACGs and that UAE could be a viable alternative, with high potential for large-scale extraction.

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