Effect of solvents and extraction methods on total anthocyanins, phenolic compounds and antioxidant capacity of Renealmia alpinia (Rottb.) Maas peel

Vega-Arroy, D.J.; Ruíz-Espinosa, H.; Luna-Guevara, Juan José; Luna-Guevara, María Lorena; Hernández‐Carranza, Paola; Ávila‐Sosa, R.; Ochoa‐Velasco, C.E.

doi:10.17221/316/2016-cjfs

Cited by 40 publications

(11 citation statements)

References 36 publications

(41 reference statements)

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“…Pulse signal on the generator in the form of a meander shows the best effect increasing the size of the extractor and the amount of raw material by 5 times not leading to a decrease in the acoustic effect. The frequency is ultrasonic, but the power of the exposure does not exceed 1.5 mV in contrast to the known methods of using ultrasound for extracting of vegetable raw materials, where the power of the action is from 20 W to a 1 kW [15][16][17][18]. In these cases, the factors contributing to the intensification are: an increase in the speed of flow; acceleration of solid particles impregnation of a solid; an increase in the coefficient of internal diffusion; cavitation effect, affecting the structure of porous bodies and leading to the appearance of microcracks.…”

Section: Discussionmentioning

confidence: 99%

Resonant Acoustic Effect on Extraction of Birch Inner Bark With Alkali Solution

Bobkova

Kostukevich

Vedernikov³

2019

JCPRM

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The article describes the option of intensification extraction process from the birch inner bark. The influence of acoustic action (tensile-pulse modulation) on an increase in the yield of extractive substances on an aqueous solution of alkali (1% NaOH) is discussed. The extraction results were evaluated by the solid residue, the optical density of the solution, and the content of tannins. The yield of extractive substances is increased in 1.5 time with the help of a certain generator signal (meander) with a certain frequency (in the range of 170–190 kHz) and amplitude (2.7–2.9 V). The acoustic effect makes it possible to increase the yield of extractive substances by 17% if compared with the yield with mechanical stirring. The purity of tannin can be improved by adding ethyl alcohol to the extractant. The effect of background regulation with signal power less than 1.5 mW, exceeds the effect of mechanical mixing. A meander has the greatest effect in a series of electromagnetic signals: a meander, a sine, a triangle, a rectangle. The extraction time is determined. All counterparts taken into consideration the effect occurs. The cause of this phenomenon is examined. An explanation of the results is given.

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Section: Discussionmentioning

confidence: 99%

Resonant Acoustic Effect on Extraction of Birch Inner Bark With Alkali Solution

Bobkova

Kostukevich

Vedernikov³

2019

JCPRM

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“…mass peel show that solvent mixture compost with high methanol gave higher phenolic extract compare to anthocyanin [11]. While methanol content without other organic solvent gave higher anthocyanin and antioxidant compound [11]. This show that polarity of the extraction medium plays an important role in extraction yield for the targeted bioactive compound.…”

Section: B Response Surface Analysis Of Bcbmentioning

confidence: 91%

“…A study was done by Javier et al (2016) on effect different solvent on anthocyanin and phenolic compounds of Renealmia Alpinia (Rottb.) mass peel show that solvent mixture compost with high methanol gave higher phenolic extract compare to anthocyanin [11]. While methanol content without other organic solvent gave higher anthocyanin and antioxidant compound [11].…”

Section: B Response Surface Analysis Of Bcbmentioning

confidence: 91%

Central Composite Design as a Tools for Optimization of Antioxidant Activity on Cocoa Shell Extract

Yusof¹,

Gani²,

Zaidan³

et al. 2019

IJEAT

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This study seeks to analyze and optimize the antioxidant activity thru beta carotene bleaching assay influenced by different extraction condition on extracts obtained from Malaysia Cocoa Shell. The condition was optimized by response surface methodology with five levels of the model. There are three variables involved in this study, namely: ethanol concentration (70-90 v/v %), temperature (45-65 ºC), and ultrasound irradiation time (30-60 min). The optimum condition obtains for temperature, duration of extraction and solvent concentration were 55 ºC, 45 minutes and 63.18% respectively at a constant frequency of 40 kHz. In this condition, the antioxidant activity experimental was 98.91±0.5% and predicted 98.44%. The ANOVA shows the coefficient of determination (R2 ) and the lack of fit test was 0.9846 and 0.6105 respectively. The desirability function from T-test data, modeled equation fits the data, reveals that the design can be used to predicting future observation within the design range.

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“…Hasil rendemen ekstrak umbi dengan pelarut etanol 96 % ini masih lebih rendah jika dibandingkan dengan menggunakan air suling yang dibantu dengan pengadukan selama 24 jam (27,4 %) (11) . Hal ini disebabkan oleh adanya proses pengadukan selama 24 jam secara terus-menerus sehingga akan lebih memudahkan dalam melarutkan (meningkatkan kelarutan) senyawa yang ada pada simplisia (12) . Hasil rendemen ekstrak daun dengan pelarut etanol 96 % ini lebih tinggi jika dibandingkan ekstraksi menggunakan pelarut metanol (80%) yang menghasilkan rendemen 4,87±0,20% (13) .…”

Section: Hasil Dan Pembahasanunclassified

Antibacterial Activity of Allium ascalonicum Linn Fractions A562275sal from the Palu Valley against Shigella dysenteriae

Khumaidi¹,

Maulina²,

Nugrahani³

2019

jifi

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Shallot (Allium ascalonicum Linn.) is one of the typical plants of Central Sulawesi which is used as traditional medicine such as to treat infectious diseases. This study aims to determine the fractions that have high activity from bulbs and leaves in inhibiting the growth of Shigella dysenteriae bacteria and determining the organic compounds that have antibacterial activities. Extraction was carried out by maceration method using ethanol 96% for both samples. Liquid-liquid fractionation was used as a fractionation method using n-hexane, ethyl acetate and water solvents, sequenly. The antibacterial activity test used the diff usion method with the pile technique and TLC-bioautography. The results showed that ethyl acetate fraction gave the highest activity of bulbs samples, while in leaves samples ethyl acetate fraction and n-hexane fraction were able to provide good inhibitory activity. The organic compounds were identifi ed by thin layer chromatography method. Flavonoids compounds have identifi ed for bulbs samples (Rf 0.18). In the leaves samples, steroids compounds were identifi ed in the ethyl acetate fraction (Rf 0.62) and terpenoid compounds (Rf 0.48) in the n-hexane fraction. Based on the result, the shallot is potentially be developed as an antibacterial material.Abstrak: Bawang merah (Allium ascalonicum Linn.) dari lembah Palu merupakan salah satu tanaman khas Sulawesi Tengah yang digunakan sebagai obat tradisional seperti untuk mengobati penyakit infeksi. Penelitian ini bertujuan untuk mengetahui fraksi yang mempunyai aktivitas tinggi dari sampel umbi dan daun bawang merah dari lembah Palu dalam menghambat pertumbuhan bakteri Shigella dysenteriae dan menentukan golongan senyawa yang memiliki aktivitas tersebut. Penelitian dengan ekstraksi bawang merah menggunakan metode maserasi dengan etanol 96% terhadap kedua sampel. Fraksinasi cair-cair digunakan sebagai metode fraksinasi menggunakan pelarut n-heksan, etil asetat dan air secara berurutan. Uji aktivitas antibakteri menggunakan metode difusi dengan teknik sumuran dan KLT Bioautografi . Hasil penelitian menunjukkan bahwa fraksi etil asetat memberikan aktivitas tertinggi dari sampel umbi, sedangkan pada sampel daun fraksi etil asetat dan fraksi n-heksan mampu memberikan aktivititas penghambatan yang baik. Golongan senyawa yang teridentifi kasi dengan metode kromatografi lapis tipis adalah senyawa fl avonoid untuk sampel umbi (Rf 0,18). Pada sampel daun teridentifi kasi senyawa steroid pada fraksi etil asetat (Rf 0,62) dan senyawa terpenoid (Rf 0,48) pada fraksi n-heksan. Berdasarkan hal tersebut Bawang merah dari lembah Palu berpotensi dapat dikembangkan sebagai bahan antibakteri.Kata kunci: Allium ascalonicum Linn, fraksi, umbi, daun, antibakteri, KLT bioautografi .

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Effect of solvents and extraction methods on total anthocyanins, phenolic compounds and antioxidant capacity of Renealmia alpinia (Rottb.) Maas peel

Cited by 40 publications

References 36 publications

Resonant Acoustic Effect on Extraction of Birch Inner Bark With Alkali Solution

Resonant Acoustic Effect on Extraction of Birch Inner Bark With Alkali Solution

Central Composite Design as a Tools for Optimization of Antioxidant Activity on Cocoa Shell Extract

Antibacterial Activity of Allium ascalonicum Linn Fractions A562275sal from the Palu Valley against Shigella dysenteriae

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