Optimization of palmitic acid extraction from palm oil with betaine-based natural deep eutectic solvent using response surface methodology

2019 ◽  
Author(s):  
Kamarza Mulia ◽  
Elgusta Masanari ◽  
Ida Zahrina ◽  
Bambang Susanto ◽  
Elsa Anisa Krisanti
Keyword(s):  
Response Surface Methodology ◽  
Palmitic Acid ◽  
Response Surface ◽  
Palm Oil ◽  
Deep Eutectic Solvent ◽  
Acid Extraction ◽  
Natural Deep Eutectic Solvent

scholarly journals Development of a colorless Centella asiatica (L.) Urb. extract using a natural deep eutectic solvent (NADES) and microwave-assisted extraction (MAE) optimized by response surface methodology

RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8741-8750
Author(s):  
Suppalak Phaisan ◽  
Fonthip Makkliang ◽  
Waraporn Putalun ◽  
Seiichi Sakamoto ◽  
Gorawit Yusakul
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Deep Eutectic Solvent ◽  
Centella Asiatica ◽  
Microwave Assisted Extraction ◽  
Green Process ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Natural Deep Eutectic Solvent

This study outlines a green process for Centella asiatica (L.) Urb. (CA) extraction.

scholarly journals OPTIMASI METODE EKSTRAKSI BERBANTU MIKROWAVE DENGAN PELARUT HIJAU (ASAM SITRAT-GLUKOSA) TERHADAP KADAR POLIFENOL TOTAL DARI DAUN KADAMBA (Mitragyna speciosa Korth. Havil) MENGGUNAKAN RESPONSE SURFACE METHODOLOGY

2020 ◽  
Vol 24 (1) ◽  
pp. 11-16
Author(s):  
Islamudin Ahmad ◽  
Wisnu Cahyo Prabowo
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Scale Up ◽  
Deep Eutectic Solvent ◽  
Box Behnken Design ◽  
Design Expert ◽  
Mitragyna Speciosa ◽  
Natural Deep Eutectic Solvent

Kadamba (Mitragyna speciosa Korth Havil) merupakan salah satu tumbuhan endemik di Asia Tenggara, di Indonesia, tumbuhan ini banyak di jumpai di pulau Kalimantan. Tumbuhan ini dipercaya oleh masyarakat dapat mengobati berbagai macam penyakit. Namun, karena kandungan alkaloidnya, tumbuhan ini dilarang digunakan sebagai bahan baku obat herbal oleh Badan Pengawas Obat dan Makanan. Oleh karena itu, perlu dilakukan pengembangan metode ekstraksi untuk menarik senyawa metabolit sekunder target dan meminimalkan senyawa yang tidak diinginkan yaitu dengan menggunakan metode ekstraksi berbantu mikrowave dengan pelarut hijau (Natural Deep Eutectic Solvent) yang dioptimasi menggunakan response surface methodology (RSM). Simplisia kering daun Kadamba diekstraksi menggunakan metode ekstraksi berbantu mikrowave dengan pelarut hijau (asam sitrat-glukosa) dengan berbagai kondisi ekstraksi dengan empat faktor dan tiga level (Box Behnken Design) yang dioptimasi menggunakan RSM dengan aplikasi perangkat lunak Design Expert versi 12 berlisensi. Penetapan kadar polifenol total dilakukan menggunakan reagen Folin-Ciocalteau dan diukur absorbansinya pada spektrofotometer UV-Vis pada panjang gelombang 770 nm, serta asam gallat sebagai standar. Berdasarkan hasil penelitian, diperoleh kondisi optimum pada perbandingan rasio pelarut NADES (asam sitrat : glukosa) 5:1 g/g, rasio pelarut-sampel sebesar 1:20 g/mL, waktu ekstraksi selama 20 menit dan kekuatan gelombang mikro sebesar 30% dengan kadar polifenol total prediksi sebesar 314,924 ±35,95 mg GAE/g sampel, sedangkan dari hasil proses verifikasi (scale-up confirmation) yaitu dengan meningkatkan jumlah sampel yang digunakan sebanyak sepuluh kali lipat dengan Kadar polifenol total diperoleh  sebesar 427,12 ±35,95 mg GAE/g. Penelitian ini merupakan langkah awal dalam pengembangan metode ekstraksi untuk memperoleh senyawa target secara cepat, mudah, efisien, dan ramah lingkungan.

Optimization of biodiesel synthesis under simultaneous ultrasound-microwave irradiation using response surface methodology (RSM)

2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Seyed Mohammad Safieddin Ardebili ◽  
Teymor Tavakoli Hashjin ◽  
Barat Ghobadian ◽  
Gholamhasan Najafi ◽  
Stefano Mantegna ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Microwave Irradiation ◽  
Response Surface ◽  
Palm Oil ◽  
Catalyst Concentration ◽  
Irradiation Time ◽  
Operating Conditions ◽  
Molar Ratio ◽  
Reaction Conditions ◽  
Biodiesel Synthesis

AbstractThis work investigates the effect of simultaneous ultrasound-microwave irradiation on palm oil transesterification and uncovers optimal operating conditions. Response surface methodology (RSM) has been used to analyze the influence of reaction conditions, including methanol/palm oil molar ratio, catalyst concentration, reaction temperature and irradiation time on biodiesel yield. RSM analyses indicate 136 s and 129 s as the optimal sonication and microwave irradiation times, respectively. Optimized parameters for full conversion (97.53%) are 1.09% catalyst concentration and a 7:3.1 methanol/oil molar ratio at 58.4°C. Simultaneous ultrasound-microwave irradiation dramatically accelerates the palm oil transesterification reaction. Pure biodiesel was obtained after only 2.2 min while the conventional method requires about 1 h.

scholarly journals Optimization of the Novel Bisulfite Steeping Method by Response Surface Methodology for Natural Starch Synthesis From Oil Palm Trunk Biomass

2020 ◽  
Author(s):  
Zaber Ahmed ◽  
Mohd Suffian Yusoff ◽  
Nurul Hana Mokhtar Kamal ◽  
Hamidi Abdul Aziz
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Palm Oil ◽  
Pure Water ◽  
Starch Synthesis ◽  
Type Model ◽  
The Novel ◽  
Mixing Ratio ◽  
Ultra Pure Water ◽  
Oil Export

Abstract Malaysia is the 2nd largest in palm oil export, and after overcoming economic age (average 25 years), the palm oil trees entail to replace usually. Therefore, a massive quantity of palm oil trunk biomass, containing a significant amount of starch, is available as bio-waste annually. The efficient extraction of this starch (carbohydrate polymer) would be worthwhile concerning the environment, economy, conversion of biowaste to bioresources, and waste dumping challenges. Central composite design executed an experimental model design, evaluated the impacts of process variables and their interaction through response surface methodology to optimize the novel bisulfite steeping method for starch synthesis. Design-Expert software performed the data analysis. The developed quadratic models for four factors (Strength of Sodium bisulfite solution, steeping hour, mixing ratio with the bisulfite solution and ultra-pure water) and one response (%Yield), demonstrated that a significant starch yield (13.54%) is achievable utilizing 0.74% bisulfite solution, 5.6 steeping hours, for 1.6 and 0.6 mixing ratio with the bisulfite solution and ultra-pure water respectively. Experimental outcomes were quite consistent with the predicted model, which eventually sustains the significance of this method. Malvern Zetasizer test revealed a bimodal granular distribution for starch, with 7.15µm of hydrodynamic size. Starch morphology was determined by scanning electron microscopy. X-ray diffraction investigation exhibits an A-type model, specifying persistent characteristics of extracted starch.

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