Adsorptive Separation Studies of β‐Carotene from Methyl Ester Using Mesoporous Carbon Coated Monolith

Muhammad, M.; Khan, Moonis Ali; Choong, Thomas Shean Yaw

doi:10.1155/2013/235836

Cited by 10 publications

(14 citation statements)

References 18 publications

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“…The value of the activation energy could provide information on the type of adsorption -either physical or chemical. The activation energy for physical adsorption is not more than 42 kJ mol −1 [34,35], because the forces involved in physical adsorption are weak. Chemical adsorption is specific and involves forces much stronger than physical adsorption.…”

Section: Resultsmentioning

confidence: 99%

Adsorption kinetics of Cr(VI) ions from aqueous solutions onto black rice husk ash

Georgieva

Tavlieva

Genieva

et al. 2015

Journal of Molecular Liquids

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Section: Resultsmentioning

confidence: 99%

Adsorption kinetics of Cr(VI) ions from aqueous solutions onto black rice husk ash

Georgieva

Tavlieva

Genieva

et al. 2015

Journal of Molecular Liquids

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“…β-karoten yaitu bagian dari karotenoid sebesar (60-65%) [11]. β-karoten merupakan bagian dari karotenoid yang paling umum dijumpai sebagai pigmen dan sumber vitamin A, hal ini disebabkan oleh aktivitas vitamin A yang sangat tinggi dalam β-karoten, yakni 100 % [8].…”

Section: Teoriunclassified

“…Faktor terdesorpsi dinyatakan sebagai nilai fraksi yang dapat didesorpsi dalam reaksi tersebut [5]. Nilai faktor terdesorpsi yang fluktuatif disebabkan karena terhambatnya proses difusi adsorbat melalui adsorben melewati pori karbon aktif yang disebabkan proses difusi intrapartikel yang berjalan lambat [11].…”

Section: Kinetika Desorpsi Konstanta Laju Desorpsiunclassified

“…Nilai koefisien korelasi model isoterm Langmuir sebesar 0,993 mendekati nilai 1 yang menunjukkan bahwa pendekatan model isoterm Langmuir pada desorpsi β-karoten dari karbon aktif menggunakan isopropanol lebih baik. Penggunaan model isoterm Langmuir menunjukkan bahwa suatu daerah yang homogen terlibat dalam proses desorpsi [11].…”

Section: Gambar 6 Kurva Desorpsi Isoterm Freundlichunclassified

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DESORPSI Β-Karoten MINYAK KELAPA SAWIT (CRUDE PALM OIL) DARI KARBON AKTIF MENGGUNAKAN ISOPROPANOL

2017

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The aim of the research is to study the ability of isopropyl alcohol in the desorption of β-carotene and to obtain kinetic model and desorption isoterm which is suitable in β-carotene desorption. The main material used were isopropyl alcohol and activated carbon containing β-carotene. The variabels used in this research are desorption temperature, activated carbon concentration and parameter observed is concentration of β-carotene in isopropyl alcohol. In the desorption process, activated carbon which adsorp β-carotene was soaked in isopropyl alcohol. To review the desorption kinetics, this research was carried out in various temperature such as 40 oC, 50 oC, and 60 oC. In desorption isoterm process is, various mass of activated carbon was used. Desorption process will be analyzed at spesified time. This research used the first order of desorption kinetics model. The desorption constant rate obtained for 40 oC, 50 oC, and 60 oC are 0,013, 0,014, and 0,036 minute-1 with activation energy is 0,226 kkal/mol. The maximum desorption percentage obtain is 41,94 %. The desorption isoterm model which fit with the β-carotene desorption was Langmuir isoterm model with constanta value 1,2077 L/mg and -0,2218.

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“…This transesterification of palm oil produces ecofriendly diesel or commonly known as biodiesel [7]. Indonesia has a huge potential CPO where Indonesian CPO production in the last 2 years increased 6.85% in 2015 and 6.62% in 2016 with a production capacity of 33,500,691 tons in 2016 [8].…”

Section: Introductionmentioning

confidence: 99%

Vitamin E extraction from red palm biodiesel by using K2CO3 based deep eutectic solvent with glycerol as hydrogen bond donor

Manurung

Hutauruk

Arief

2018

AIP Conference Proceedings

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Abstract. Vitamin E has essential role in human body and it has high avalability in red palm biodiesel which encourages the development of separation technology to obtain this material. Deep Eutectic Solvent (DES) is the latest advancement in separation technology to extract vitamin E from it's source. in this research, Potassium carbonate (K2CO3) based DES with hydrogen bond donor (HBD) of glycerol was used to extract vitamin E from red palm biodiesel. The DES was synthesized at 80 o C for 1 hour at 300 rpm and K2CO3 to glycerol molar ratio was varied at 1:5, 1:6 and 1:7. Red palm biodiesel was synthesized by degumming CPO with 85% Posfat Acid followed by transesterification with etanol at 70 o C for 1.5 hours. Etanol to DPO molar ratio was fixed at 9:1 and catalyst concentration was 1.2%. The produced biodiesel was washed with aqudest. The liquid-liquid extraction was performed to extract vitamin E by mixing biphasic system between DES and CPO at stirring rate of 400 rpm for 3. Biodiesell : DES mass ratio was viaried at 1:2; 1:2.5, 1:3, 1:3.5, and 1:4. Recovery of vitamin E was performed by using water-hexan in ratio of 4:1 (v/v). The characterization of DES was performed by analyzing the form and measuring the freezing point, density and viscisity of DES. Vitamin E concentration was analyzed by using High Performance Liquid Chromatography (HPLC). Extraction using DES K2CO3 to glycerol molar ratio of 1:6 and biodiesel to DES mass ratio of 1:3 gave the highest vitamin E concentration at 801.23 ppm. The higher fraction in extracted vitamin E from red palm biodiesel is tocotrienol and especialy γ-Tocotrienol by using DES6 at biodiesel to DES ratio of 1:3. Tocotrienol is the vitamin E fraction which has highest anticancer activity.

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Adsorptive Separation Studies of β‐Carotene from Methyl Ester Using Mesoporous Carbon Coated Monolith

Cited by 10 publications

References 18 publications

Adsorption kinetics of Cr(VI) ions from aqueous solutions onto black rice husk ash

Adsorption kinetics of Cr(VI) ions from aqueous solutions onto black rice husk ash

DESORPSI Β-Karoten MINYAK KELAPA SAWIT (CRUDE PALM OIL) DARI KARBON AKTIF MENGGUNAKAN ISOPROPANOL

Vitamin E extraction from red palm biodiesel by using K2CO3 based deep eutectic solvent with glycerol as hydrogen bond donor

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