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Relevant bibliographies by topics / Glycerol esterification

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Journal articles

Academic literature on the topic 'Glycerol esterification'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Glycerol esterification"

1

Zappaterra, Federico, Daniela Summa, Bruno Semeraro, et al. "Enzymatic Esterification as Potential Strategy to Enhance the Sorbic Acid Behavior as Food and Beverage Preservative." Fermentation 6, no. 4 (2020): 96. http://dx.doi.org/10.3390/fermentation6040096.

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Sorbic acid is the most commonly used preservative in the food industry. The antimicrobial inhibition of sorbic acid could be influenced by its lipophilic nature, which reduces its use in hydrophilic food formulations. Reactions between sorbic acid and glycerol catalyzed by lipases were studied in order to develop a novel sorbic acid derivate with a promising hydrophilic profile. The esterification reaction between sorbic acid and glycerol in a solvent-free system were performed with an immobilized lipase B from Candida antarctica (CALB). The glycerol sorbate product has been tested against S.

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2

Kaya Ekinci, Emine, and Nuray Oktar. "Production of value-added chemicals from esterification of waste glycerol over MCM-41 supported catalysts." Green Processing and Synthesis 8, no. 1 (2019): 128–34. http://dx.doi.org/10.1515/gps-2018-0034.

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Abstract A series of active and selective MCM-41 supported catalysts have been successfully prepared and used for bioderived glycerol esterification with acetic acid to produce fuel additives. In the synthesis of MCM-41, an acidic hydrothermal synthesis route was used, and silicotungstic acid (STA) and zirconia (ZrO2) were added to the catalyst structure by wet impregnation. X-ray diffraction, nitrogen adsorption-desorption methods, scanning electron microscopy with energy-dispersive spectroscopy, and inductively coupled plasma-mass spectrometry analysis were used for characterizations of the

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3

Mutiara Valentina M, Ekelesia Martina, and Zuhrina Masyithah. "PEMBUATAN GLISEROL TRIBENZOAT DENGAN PROSES ESTERIFIKASI MENGGUNAKAN KATALIS H-ZEOLIT TERAKTIVASI OLEH ASAM KLORIDA DAN ASAM SULFAT." Jurnal Teknik Kimia USU 5, no. 1 (2016): 58–64. http://dx.doi.org/10.32734/jtk.v5i1.1526.

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Esterification is one method that is often used in converting glycerol. Glycerol tribenzoate is a derivative product of glycerol which used as a plasticizer for polymer industry, food additives, water repellent material on printer ink, and many more. This research aims to study the making of glycerol tribenzoate through esterification process by using natural zeolit catalyst which is activated with hydrochloric acid, in order to obtain the optimum catalyst % weight (w/w glycerol), and also to see the potential of recycling the zeolit. Zeolit is activated by 4M for 6 hours, and then calcined in

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4

Setyaningsih, Lucky, Fahmi Siddiq, and Aqila Pramezy. "Esterification of glycerol with acetic acid over Lewatit catalyst." MATEC Web of Conferences 154 (2018): 01028. http://dx.doi.org/10.1051/matecconf/201815401028.

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Tri Acetyl Glycerol or triacetin is one of the glycerol derivative products which can be used as additives in liquid fuels (octane boosters) to reduce knocking on the machine. The use of triacetin as octane booster is considered very promising because it comes from renewable and environmentally friendly raw materials. The resulting glycerol-based additives are suitable for gasoline, biodiesel and diesel. In this study glycerol esterification with acetic acid over Lewatit catalyst was investigated. The effects of various parameters, such as reaction temperature, weight of catalyst and molar rat

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5

Dali, Seniwati, Firdaus Firdaus, and Hendra J. Rusman. "Produksi DAG Dari Virgin Coconut Oil (VCO) Melalui Reaksi Trans-Esterifikasi Menggunakan Enzim Lipase Dedak Padi (Oryza Sativa L.) Spesifik C18-20 Terimobilisasi Karbon Aktif Sebagai Biokatalis." Indo. J. Chem. Res. 5, no. 1 (2017): 37–46. http://dx.doi.org/10.30598//ijcr.2017.5-sen.

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This research aims to produce DAG of the VCO through the substrate reaction of trans-esterification using lipase enzymes specifically C18-20 from rice bran (Oryza Sativa L.) immobiled of activated carbon as a catalyst. Phases of this research starts with the enzyme lipase do immobile using activated carbon; next enzymes of immobile used to produce DAG through the trans-esterification reaction using a VCO as a substrate and methanol as ko-substrate; DAG and methyl ester produced identified using FTIR instrument and GC-MS instruments. The results showed that there were three compounds DAG and th

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6

Sandesh, Swetha, Pandian Manjunathan, Anand B. Halgeri, and Ganapati V. Shanbhag. "Glycerol acetins: fuel additive synthesis by acetylation and esterification of glycerol using cesium phosphotungstate catalyst." RSC Advances 5, no. 126 (2015): 104354–62. http://dx.doi.org/10.1039/c5ra17623a.

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Glycerol acetylation and esterification reactions with acetic anhydride and acetic acid respectively give acetins, in which di and tri acetins are commercially important products used as fuel additives.

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7

Banu, Ionut, Grigore Bozga, Gheorghe Bumbac, et al. "A Kinetic Study of Glycerol Esterification with Acetic Acid Over a Commercial Amberlyst-35 Ion Exchange Resin." Revista de Chimie 70, no. 7 (2019): 2325–29. http://dx.doi.org/10.37358/rc.19.7.7332.

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The increased quantities of glycerol available on the market initiated research efforts oriented to new valorization technologies, particularly by its conversion into medium tonnage chemicals, replacing petroleum derivatives. In this work it was investigated the valorization of glycerol by its transformation in glycerol acetates, by direct esterification with acetic acid, over a commercial Amberlyst-35 resin. Experiments were carried out batch-wise, in an autoclave reactor under controlled working conditions, at temperatures between 95 and 112 oC and initial acetic acid to glycerol molar ratio

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8

Ramadhan, Anggara Diaz, Nindya Carolina C.S, Nuryoto Nuryoto, and Teguh Kurniawan. "The Use of Natural Zeolite as A Catalyst for Esterification Reaction Between Glycerol and Oleic Acid." Reaktor 19, no. 4 (2019): 172–79. http://dx.doi.org/10.14710/reaktor.19.4.172-179.

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Natural zeolite in Indonesia generally divided into 2 types, which are mordernite and clinoptilolite. As far the use of zeolites is very limited. This experiment tries to use both types of natural zeolites to find out its work. The purpose of this experiment is testing the performance of mordenite natural zeolite from Bayah-Indonesia and clinoptilolite from Lampung- Indonesia in the esterification reaction between glycerol and oleic acid integrated by several variable that affect the reaction. The experiment will be done by using three-neck rounded flask batch reactor. The result showed that m

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9

Popova, Margarita, Hristina Lazarova, Agnes Szegedi, et al. "Renewable glycerol esterification over sulfonic-modified mesoporous silicas." Journal of the Serbian Chemical Society 83, no. 1 (2018): 39–50. http://dx.doi.org/10.2298/jsc170306071p.

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SO3H-functionalised mesoporous materials with different pore structures (SBA-15 and SBA-16) were prepared by the post-synthesis surface modification. The materials were thoroughly characterized by X-ray powder diffraction, nitrogen physisorption, temperature-gravimetric analysis, elemental analysis and solid state NMR spectroscopy. The acidic properties were investigated by the temperature-programed desorption of ammonia. The catalytic performance of SO3H-functionalised mesoporous materials was studied in glycerol esterification with acetic acid.The different amount of silanol groups in the in

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10

Wang, Shifa. "Synthesis of light-colored rosin glycerol ester." Holzforschung 61, no. 5 (2007): 499–503. http://dx.doi.org/10.1515/hf.2007.103.

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Abstract A light-colored rosin glycerol ester was synthesized from gum rosin and glycerol in the presence of a highly effective decolorizing agent. The effects of the type and dosage of the decolorizing agent and the reaction temperature and time on the yield, softening point, color, and acid number of the rosin glycerol ester were investigated. Experimental results showed that 4,4′-thio-bis(6-tert-butyl-3-methyl phenol) was the best decolorizing agent. It promoted esterification at an optimal dosage of 0.5% (based on the weight percentage of starting material rosin). Suitable conditions for e

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