Comparison of free fatty acid conversion yields for esterification assisted by single- and dual-frequency sonication

Seithtanabutara, Varinrumpai; Sungnat, Chatuphong; Wongwuttanasatian, Tanakorn

doi:10.1007/s13399-020-00659-4

Cited by 10 publications

(22 citation statements)

References 39 publications

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“…The FFA analysis of the garlic oils was determined using the isopropyl alcohol method (Seithtanabutara et al, 2021). Briefly, 10 ml of isopropyl alcohol was added to 1 ml of oil sample.…”

Section: Methodsmentioning

confidence: 99%

A comparative study of lipid oxidation in garlic oil ( Allium sativum L.): An accelerated oxidation

Ciğeroğlu

Şahın

Kurtulbaş

2022

Food Processing Preservation

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Garlic (Allium sativum L.) has been used as folk medicine for generations. This herb strengthens the immune system due to its particularly allicin and quercetin contents. Clinical searches revealed that bioactive components in garlic reduce the cholesterol level, cardiovascular diseases, and empower the immune system owing to antioxidant, antibacterial, antimicrobial, antifungal, antihypertensive, and antidiabetic properties (Fratianni et al., 2016;Goncagul & Ayaz, 2010). Besides, this kind of herbal products diminishes the antagonist effects of viral infections (Panyod et al., 2020). On the other hand, the Covid-19, which came out at the end of 2019, is similar to SARS, so it is named as SARS-CoV-2. Millions of human beings have died from the coronavirus infections. Since Covid-19 has become the biggest problem in the world in 2020; thereby, all researchers around the world seek for a solution for diminishing this SARS-CoV-2's impact. Many clinical studies have recommended garlic oil against SARS-CoV-2 effect (Asif et al., 2020;Khubber et al., 2020;Thuy et al., 2020).Oxidation reactions occur during heat and storage conditions that give rise to changes in the structure of the oil-containing products. Besides, as a result of oxidation, undesirable flavors and bad aroma occur (Golmakani et al., 2020). Therefore, the stability of the oil against oxidation must be evaluated in terms of several respects such as induction time and prediction of shelf life (Martín-Torres et al., 2022). On the other side, many accelerated lipid oxidation methods such as differential nuclear magnetic resonance (NMR), scanning calorimetry (DSC), and Rancimat have been utilized to

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“…The FFA analysis of the garlic oils was determined using the isopropyl alcohol method (Seithtanabutara et al, 2021). Briefly, 10 ml of isopropyl alcohol was added to 1 ml of oil sample.…”

Section: Methodsmentioning

confidence: 99%

A comparative study of lipid oxidation in garlic oil ( Allium sativum L.): An accelerated oxidation

Ciğeroğlu

Şahın

Kurtulbaş

2022

Food Processing Preservation

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“…It can be only extracted by a non-polar solvent, also yielding less polar free fatty acid (FFA) content. High FFA content is not favourable for transesterification reaction due to the inhibition of biodiesel conversion; therefore, the FFA content in the feedstock should be reduced prior to esterification and transesterification (Seithtanabutara et al 2020). FFA content reported in Roschat et al (2017) (5.2 wt%) is the least by far compared to Morshed et al (2011) (17 wt%) and Ramadhas et al 2005 (45 wt%).…”

Section: Main Usagementioning

confidence: 96%

Multifunctional rubber seed biomass usage in polymer technology and engineering: A short review

Shafiq

Ismail

2021

BioRes

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Hevea brasiliensis is the most relevant source of natural rubber-based products in the world, and it is mostly found in Southeast Asia. This species is highly functional because its seeds can be utilized as a starting material for many essential applications related to polymer engineering and technology. The main practical compositions are its shell and kernel. The importance of each composition is varied based on the content of each structure. The kernel is predominantly composed of oil, where the oil can be utilized for the production of biofuel and to impart flexibility in many polymer-based composites. Furthermore, the carbon and lignocellulosic contents are heavily represented in the shell of the rubber seed, making the shell useful as a natural resource for carbon-derived applications.

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“…Accelerating processes with cavitation can assist in getting around reactant immiscibility. 24,37 The reaction mixture is subjected to high-frequency sound waves, which cause numerous cavitation bubbles to form quickly and implosively collapse. Strong bubble bursts cause the phase boundaries between the reactants to separate, creating tiny emulsions and microbubbles in the reaction mixture.…”

Section: Statement Of Noveltymentioning

confidence: 99%

“…31 Transesterification processes are sped up, and response times are decreased in emulsions with high interfacial surfaces because they maximize reaction sites. 22,24,25,27,31,32,37 Compared with traditional stirring, ultrasound-assisted operations offer quicker reaction times and greater product yields per unit of energy. Therefore, it would be advantageous to develop a new technique to increase the reaction efficacy by intensifying the process and shortening the reaction time using ultrasonic waves.…”

Section: Statement Of Noveltymentioning

confidence: 99%

Ultrasound intensification of two‐stage biodiesel production: optimization for palm empty fruit bunch oil as a palm oil industry by‐product

Seithtanabutara,

Pholsawang,

Wongwuttanasatian

2023

Biofuels Bioprod Bioref

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Palm empty fruit bunch oil (palm EFB oil) is a waste product that can be used to produce biodiesel at a low cost. However, high free fatty acid (FFA) content is the primary obstacle to biodiesel production. Before the transesterification process can begin, the oil must be esterified to reduce its acid content. This study seeks to employ dual‐frequency ultrasound at frequencies of 28 kHz (200 W) and 40 kHz (200 W) to aid in the esterification and transesterification of ZSM‐5‐38 and CaO catalysts, respectively. Central composite design and response surface methodology were used to determine the optimal conditions for the three primary parameters of methanol to oil (M:O molar ratio), catalyst loading and reaction time. A 12:1 M:O molar ratio, 11.36 wt% catalyst loading (ZSM‐5‐38) and 60 min of reaction duration were the optimal conditions for esterification to achieve a FFA conversion of 91.51%. The reusability of ZSM‐5‐38 revealed a decrease in FFA conversions of 87.36, 75.11, 67.13 and 58.68% with each reused cycle. The optimal transesterification conditions were a 3.28:1 M:O molar ratio, 4.62 wt% catalyst loading (CaO) and 64 min of reaction time, yielding 83.58% biodiesel. The viscosity value (D 445), the flash point (D 93) and the heating value (ASTM D240) of biodiesel produced under optimal conditions were evaluated. The biodiesel properties were determined to be 4.7931 mm2/s, 176°C and 40 398 kJ/kg, respectively.

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Comparison of free fatty acid conversion yields for esterification assisted by single- and dual-frequency sonication

Cited by 10 publications

References 39 publications

A comparative study of lipid oxidation in garlic oil ( Allium sativum L.): An accelerated oxidation

A comparative study of lipid oxidation in garlic oil ( Allium sativum L.): An accelerated oxidation

Multifunctional rubber seed biomass usage in polymer technology and engineering: A short review

Ultrasound intensification of two‐stage biodiesel production: optimization for palm empty fruit bunch oil as a palm oil industry by‐product

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