Extraction of Phenolic Compounds from Cosmos caudatus Using Pulse Electric Field (PEF)

Izza, Ni’matul; Dewi, Shinta Rosalia; Putranto, Angky Wahyu; Yuneri, Dian Rahmat; Dachi, Maria Yeniaska S.

doi:10.21776/ub.jtp.2016.017.02.2

Cited by 12 publications

(10 citation statements)

References 16 publications

(16 reference statements)

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“…[1][2] Aktivitas biologik dari berbagai ekstrak bagian tanaman kenikir dan senyawa metabolit sekundernya juga telah banyak dipublikasikan. Salah satu aktivitas yang telah ditunjukkan antara lain antioksidan karena adanya senyawa-senyawa golongan flavonoid dan fenolik yang diperoleh dengan berbagai cara ekstraksi [3][4] [5] , pada bagian daun maupun bunganya. [6][7] [8] Aktivitas biologik lainnya meliputi antidiabetes, antihiperlipidemia dan sitotoksik.…”

Section: Pendahuluanunclassified

AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN KENIKIR (Cosmos caudatus Kunth) DENGAN BERBAGAI METODE EKSTRAKSI (ANTIOXIDANT ACTIVITY OF LEAVES EXTRACT OF KENIKIR (Cosmos caudatus Kunth) WITH VARIOUS EXTRACTION METHODS)

Widiyantoro

Harlia

2021

indonesian

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Cosmos caudatus Kunth is a vegetable plant that is often used as a food ingredient and traditional medicine. This study aims to determine the antioxidant activity of C. caudatus Kunth leaves extract obtained by a variety of extraction methods. The antioxidant activity test was carried out using the DPPH method. The results showed that the yield of C. caudatus Kunth leaves extract by maceration method (10.98%) was higher than the percolation (7.28%) and soxhletation (8.22%). The antioxidant activity (IC50) of the macerated extract (12.5 ± 0.3 µg/mL) was also higher than the percolated extract (16.8 ± 0.2 µg/mL) and soxhletation (18.8 ± 0.2 µg/mL). The macerated extract showed the highest antioxidant activity because it contained many secondary metabolites such as flavonoids and phenolics.

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Section: Pendahuluanunclassified

AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN KENIKIR (Cosmos caudatus Kunth) DENGAN BERBAGAI METODE EKSTRAKSI (ANTIOXIDANT ACTIVITY OF LEAVES EXTRACT OF KENIKIR (Cosmos caudatus Kunth) WITH VARIOUS EXTRACTION METHODS)

Widiyantoro

Harlia

2021

indonesian

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“…This is also supported by the application of low electric field strength (9 kV/cm). The higher electric field strength application (above 35 kV/cm) is suitable for bacterial inactivation process, while the application of low electric field strength (1-10 kV/cm) is suitable for increasing mass transfer in the extraction of important antioxidant compounds (carotenoids, phenolics, and anthocyanins) from agricultural materials and biomass pretreatment processes (Donsi et al, 2010;Putranto et al, 2014;Izza et al, 2016;Putranto et al, 2018;Dewi et al, 2019). The low specific input energy will positively also affect cheaper production costs, so the pretreatment process with PEF has the potential to be applied on an industrial scale.…”

Section: Energy Analysis During Pretreatmentmentioning

confidence: 99%

Lignocellulosic Analysis of Corncob Biomass by Using Non-Thermal Pulsed Electric Field-NaOH Pretreatment

Putranto

Abida

Adrebi

et al. 2020

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In recent years, the second-generation bioethanol and advanced bio-based material production from biomass are focused on the pretreatment process by separating cellulose components from other components such as lignin and hemicellulose. Therefore, a physicochemical pretreatment method is needed by applying a non-thermal pulsed electric field (PEF) and alkali methods to increase the cellulose availabilities with a short process and low energy input. The aim of this study was to analyze the lignocellulose content of corncob biomass by using non-thermal pulsed electric fields (PEF) and NaOH pretreatment. The pretreatment factors used were the electric field strength of PEF and the pretreatment time. Analysis of the structure and elements of the lignocellulose based on the characteristics of the gravimetric method and SEM-EDX for untreated and treated samples. The results showed that pretreatment of corncobs biomass by using PEF optimally at an electric field strength of 9 kV/cm and pretreatment time of 60 seconds that was increasing cellulose of 40.59% when compared with the control and also decreasing the hemicellulose and lignin content of 12.9% and 2.02%, respectively. Under these conditions, the energy per pulse and specific input energy of PEF required 0.0205 J and 8.72 kJ/L, respectively. The microstructure analysis by using SEM-EDX showed significantly visual differences and was an increase in the percentage of C and O atoms between untreated and treated corncob biomass. Furthermore, the corncob biomass treated by using non-thermal PEF and alkali can become effective and efficient for the next process into cellulose-derived products.Keywords: corncob biomass; pulsed electric field; NaOH; pretreatment; cellulose

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“…Also, heat extraction at a certain temperature was reported to decrease the extract yield because some phenolic compounds are degraded by the high temperature [15], [16]. To reduce the energy consumption that affected by heat, some novel extraction methods such as electric-assisted extraction [17]- [19], ultrasound-assisted extraction (UAE) [20], [21], and microwave-assisted extraction (MAE) were applied [22]- [25].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Phenolic Compounds from Coleus amboinicus Leaves by Microwave-assisted Extraction: Optimization of the Operating Condition

Izza¹,

Sumarni²,

Pramesi³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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Torbangun (Coleus amboinicus L) leaf is one of the herbs from Indonesia that has been reported to have many bioactive compounds for human health. These phytochemicals are predominantly incorporated into phenolics, such as flavonoids. An extraction process is needed to obtain all the valuable compounds, and conventional solvent extraction, such as heating and maceration, could be easily applied because of its simplicity. However, this method requires high energy, a longer extraction time, and a large amount of solvent. To overcome these limitations, in this study, microwave-assisted extraction (MAE) was utilized to extract phenolic compounds, including flavonoids from torbangun leaves. Three factors (solvent to feed ratio, microwave power, and extraction time) were evaluated to affect the three responses (extract volume, TPC, and TFC). The extraction process optimization was carried out to get a higher response. The Box-Behnken experiment design and Response Surface Methodology (RSM) determined the optimal operating condition.The result shows 30 ml/g of solvent to feed ratio, 300 W of microwave power, and 4.6 minutes of extraction time as the optimum condition. Applying those conditions, the extract is expected to reach 10.13 ml of extract volume, 9.17 mg GAE/ ml extract of total phenolic, and 3.62 mg QE/ ml extract of total flavonoid. In sum, MAE was useful for extracting phenolic compounds from torbangun leaves and could be an alternative method due to its high efficiency.

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Extraction of Phenolic Compounds from Cosmos caudatus Using Pulse Electric Field (PEF)

Cited by 12 publications

References 16 publications

AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN KENIKIR (Cosmos caudatus Kunth) DENGAN BERBAGAI METODE EKSTRAKSI (ANTIOXIDANT ACTIVITY OF LEAVES EXTRACT OF KENIKIR (Cosmos caudatus Kunth) WITH VARIOUS EXTRACTION METHODS)

AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN KENIKIR (Cosmos caudatus Kunth) DENGAN BERBAGAI METODE EKSTRAKSI (ANTIOXIDANT ACTIVITY OF LEAVES EXTRACT OF KENIKIR (Cosmos caudatus Kunth) WITH VARIOUS EXTRACTION METHODS)

Lignocellulosic Analysis of Corncob Biomass by Using Non-Thermal Pulsed Electric Field-NaOH Pretreatment

Extraction of Phenolic Compounds from Coleus amboinicus Leaves by Microwave-assisted Extraction: Optimization of the Operating Condition

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