Green extraction process of tannins obtained from Moroccan Acacia mollissima barks by microwave: Modeling and optimization of the process using the response surface methodology RSM

Rhazi, Naima; Hannache, Hassan; Oumam, Mina; Sesbou, Abdessadek; Charrier, Bertrand; Pizzi, A.; Bouhtoury, Fatima Charrier–El

doi:10.1016/j.arabjc.2015.04.032

Cited by 57 publications

(39 citation statements)

References 45 publications

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“…Arvindekar and Laddha (2016) state that in MAE, the use of water mixed with other organic solvents increases dipole momentum, dipole orientation and ionic conductivity, and it is recommended in the extraction of bioactive compounds compared to the use of pure organic solvents. Rhazi et al (2015), in the MAE separation with different concentrations of organic solvents (20%, 50%, and 80% methanol), found that the lower the concentration of methanol used, the higher were the separation yields of condensed and hydrolyzed tannins from Acacia Mollissima .…”

Section: Resultsmentioning

confidence: 99%

Extraction of bioactive compounds fromAraucaria angustifoliabracts by microwave‐assisted extraction

Dorneles

Noreña

2020

J Food Process Preserv

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This study proposed the separation of the phenolic compounds from the bracts by microwave‐assisted extraction at 700, 800, and 1,000 W power, in times of 10, 15, and 20 min using water as a solvent. The results showed that the power and time were significant on the yields of phenolic, tannin, and radical scavenging assay. The best extraction condition was obtained at 1,000 W for 20 min, with contents of 47.61, 27.09, and 779.95 mg/g, for total phenolic compounds, total tannins, and condensed tannins; and 427.28 and 467.79 μmol/g for radical scavenging capacity by ABTS·+ and DPPH·, respectively, and it did not present a significant difference with the exhaustive extraction using acetone as a solvent. The colorimetric parameters Hue angle and Chroma showed values of 62.28° and 31.20, respectively. The maximum predicted responses by response surface methodology were also reached at 1,000 W and 20 min. Practical applications Araucaria angustifolia bracts are a source of phenolic compounds, mainly condensed tannins, which are related to potential health benefits, such as antioxidant capacity and antimicrobial, antimutagenic and anticarcinogenic properties. The extract containing these molecules was obtained by microwave‐assisted extraction using water as a solvent, thus employing green separation technologies, which resulted in shorter residence times at high temperatures and lower losses of thermally sensitive components as well as energy consumption. The results obtained from the recovery of phenolic compounds in the extract demonstrated the feasibility of the method to be applied on the industrial scale for its use in food formulations.

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Section: Resultsmentioning

confidence: 99%

Extraction of bioactive compounds fromAraucaria angustifoliabracts by microwave‐assisted extraction

Dorneles

Noreña

2020

J Food Process Preserv

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“…Extraction techniques such as Ultrasonic extraction, Microwave-assisted extraction (MAE), Extraction with magnetic stirrer or highpressure extraction have been applied to increase extraction efficiency, shorten extraction time, etc. [6,7]. However, these techniques are costly.…”

Section: Introductionmentioning

confidence: 99%

Study on Extraction of Tannins From the Garcinia Mangostana Linn Peel in Vietnam

Hien¹

2018

JST

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Garcinia mangostana Linn is known as the "queen of fruit" in Vietnam, which is grown in the provinces of the Mekong Delta and the South Eastern area. Many researches showed that the pericarp of this fruit has many active components, such as xanthones, anthocyanins, tannins, etc. Tannin content of Gacinia mangosteen Linn peel of four regions (Can Tho, Tra Vinh, Bình Duong and Vinh Long provinces) in Vietnam was investigated. It was 13.80% (Vinh Long), 13.91% (Can Tho), 14.15% (Binh Duong), 14.50 % (Tra Vinh). This study focused on the extraction of the tannins compound from the Garcinia mangostana Linn for applications in the food industry, especially in the wine-producing industry.The pericarp of mangosteen was treated with Termamyl SC and Pectinex Ultra SP-L enzymes, then mixed with 60% ethanol at the ratio of 1/20 (material /solvent) and heating for 120 minutes at 60°C. The extracts then were obtained after centrifugation at 5000 rpm for 10 minutes and vacuum filtered. The extraction efficiency was more than 90%, higher than without enzyme pretreatment (87.35%).

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“…Penggunaan pelarut air juga menyebabkan tingginya kadar tanin, dimana tanin merupakan senyawa yang bersifat polar sehingga pelarut yang digunakan adalah pelarut polar seperti air. Menurut Rhazi et al (2014) penggunaan pelarut yang dapat menyerap gelombang mikro dapat melarutkan senyawa yang diinginkan sehingga pengaruh terhadap kadar tanin yang diperoleh.…”

Section: Rendemenunclassified

Studi awal tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. dari hutan tanaman industri untuk bahan penyamak kulit

Mutiar¹,

Kasim²,

Emriadi³

et al. 2019

MKKP

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Studi awal tanin dari kulit kayu A.auriculiformis …….. (Mutiar et al.) 41 Majalah Kulit, Karet, dan Plastik, 34(2), 41-48, 2018 ©Author(s), https://doi.org/10. 20543/mkkp.v34i2.3967 Studi awal tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. dari hutan tanaman industri untuk bahan penyamak kulit ABSTRACT This study aims to determine the tannin content and extraction method of the content and levels of tannin from the bark of Acacia auriculiformis A. Cunn. ex Benth. The bark is obtained from PT. Arara Abadi. The extract methods are water bath, ultrasonic bath, autoclave, reflux, and microwave. The tannin extract produced was applied as a vegetable tanning agent. The extract which is the best yield of the method used. The results showed that the highest yield was obtained by the autoclave method which was 29.65%. The results of chemical analysis of the extract produced were 52.79% tannin content, 62.40% water soluble materials. Application of the tannin extract as a vegetable tanning agent on goat skin was carried out chemical analysis, observation of physical and organoleptic properties. The quality of tanned skin was seen from the chemical properties, i.e. water content of 15.02%, 3.20% fat content, 3.44% ash content, 3.57% water soluble substances, 43.79% raw skin substances, 30.98% bonded tannins, 70.74% degree of tannage. Observation of physical properties of tanned skin were tensile strength 254.21 kg/cm 2 , 63.95% elongation at break, 9.27 mm zwik resistance/crack (non-broken nerf), thickness 0.9 mm, and brown color. A. auriculiformis bark extract contains tannins and potential as tanning agent. ABSTRAKPenelitian ini bertujuan untuk mengetahui kandungan tanin dan metode ekstraksi terhadap karakteristik dan kadar tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. Kulit kayu diperoleh dari HTI PT. Arara Abadi. Metode ekstrak yang digunakan water bath, ultrasonic bath, autoclave, refluks dan microwave. Ekstrak tanin yang dihasilkan diaplikasikan sebagai bahan penyamak nabati. Ekstrak yang digunakan adalah rendemen tertinggi dari metode yang digunakan. Hasil penelitian menunjukkan bahwa rendemen tertinggi diperoleh dengan metode autoclave yaitu 29,65%. Hasil analisis kimia dari ekstrak yang dihasilkan kadar tanin adalah 52,79%, bahan larut air 62,40%. Aplikasi ekstrak tanin sebagai bahan penyamak nabati menggunakan kulit kambing dilakukan analisis kimia, pengamatan sifat fisik dan organoleptis. Kualitas kulit tersamak ditinjau dari sifat kimia diantaranya kadar air 15,02%, kadar lemak 3,20%, kadar abu 3,44%, kadar zat larut air 3,57%, kadar zat kulit mentah 43,79%, kadar tanin terikat 30,98% dan derajat penyamakan 70,74%. Pengamatan sifat fisik kulit tersamak yaitu kekuatan tarik 254,21 kg/cm 2 , kemuluran 63,95%, ketahanan zwik/keretakan 9,27 mm (nerf tidak pecah), ketebalan 0,9 mm, warna coklat. Ekstrak kulit kayu A. auriculiformis mengandung tanin dan berpotensi untuk digunakan sebagai bahan penyamak kulit.

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Green extraction process of tannins obtained from Moroccan Acacia mollissima barks by microwave: Modeling and optimization of the process using the response surface methodology RSM

Cited by 57 publications

References 45 publications

Extraction of bioactive compounds fromAraucaria angustifoliabracts by microwave‐assisted extraction

Extraction of bioactive compounds fromAraucaria angustifoliabracts by microwave‐assisted extraction

Study on Extraction of Tannins From the Garcinia Mangostana Linn Peel in Vietnam

Studi awal tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. dari hutan tanaman industri untuk bahan penyamak kulit

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