Simultaneous extraction and separation of flavonoids and alkaloids from Crotalaria sessiliflora L. by microwave-assisted cloud-point extraction

Tang, Xunyou; Zhu, Dan; Huai, Wenbei; Zhang, Wei; Fu, Chujun; Xie, Xiujuan; Quan, Sisi; Fan, Huajun

doi:10.1016/j.seppur.2016.11.038

Cited by 66 publications

(22 citation statements)

References 31 publications

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“…Thus, at the end of the process, hydrophobic molecules are present in the surfactant-rich phase, and hydrophilic molecules are suspended in the aqueous phase. Unlike the microwave-assisted aqueous two-phase extraction process, microwave-assisted cloud-point extraction is a two-step process characterized by higher selectivity and higher extraction yield (601.4 μg/g for vitexin and 386.7 for isovitexin μg/g) [78].…”

Section: Extraction Of Flavonoidsmentioning

confidence: 99%

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Belwal

Ezzat

Rastrelli

et al. 2018

TrAC Trends in Analytical Chemistry

312

182

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Plant extracts have been long used by the traditional healers for providing health benefits and are nowadays suitable ingredient for the production of formulated health products and nutraceuticals. Traditional methods of extraction such as maceration, percolation, digestion, and preparation of decoctions and infusions are now been replaced by advanced extraction methods for increased extraction efficiency and selectivity of bioactive compounds to meet up the increasing market demand. Advanced techniques use different ways for extraction such as microwaves, ultrasound waves, supercritical fluids, enzymes, pressurized liquids, electric field, etc. These innovative extraction techniques, afford final extracts selectively rich in compounds of interest without formation of artifacts, and are often simple, fast, environmentally friendly and fully automated compared to existing extraction method. The present review is focused on the recent trends on the extraction of different bioactive chemical constituents depending on the nature of sample matrices and their chemical classes including anthocyanins, flavonoids, polyphenols, alkaloids, oils, etc. In addition, we review the strategies for designing extraction, selection of most suitable extraction methods, and trends of extraction methods for botanicals. Recent progress on the research based on these advanced methods of extractions and their industrial importance are also discussed in detail.

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Section: Extraction Of Flavonoidsmentioning

confidence: 99%

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Belwal

Ezzat

Rastrelli

et al. 2018

TrAC Trends in Analytical Chemistry

312

182

View full text Add to dashboard Cite

show abstract

“…Hence, the ultrasonic microwave-assisted method was chosen in this study to extract bioactive substances from Clinacanthus nutans. This technology combines the ultrasonic vibration cavitation with a high-energy effect of microwaves and completes the process under the conditions of low temperature and atmospheric pressure (Liu et al 2014;Tang et al 2017). Employing a sequential ultrasonic-microwave extraction could potentially minimise or prevent the degradation of extract (Shan et al 2016).…”

mentioning

confidence: 99%

Ultrasonic microwave-assisted extraction of polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans

Yu¹,

Li²,

Duan³

et al. 2017

Czech J. Food Sci.

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Yu Q., Chuan L., Duan Z., Liu B., Duan W., Shang F. (2017): Ultrasonic microwave-assisted extraction of polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans. Czech J. Food Sci., 35: 89-94.Polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans were extracted by an ultrasonic microwave-assisted method. The optimal extraction conditions were established in distilled water, solid-liquid ratio 1 : 55 g/ml, irradiation power 90 W, and extraction cycle with 75 seconds. Results revealed that the solid-liquid ratio exerted a significant effect on polyphenols, whereas the irradiation power played a key role in the extraction of flavonoids, triterpenoids, and vitamin C. Under these conditions the extraction yield of each component was: polyphenols 8.893, flavonoids 25 936, triterpenoids 16 789, and vitamin C 0.166 mg/g. These results showed that the ultrasonic microwave-assisted extraction was an efficient technology to extract bioactive substances from Clinacanthus nutans and Clinacanthus nutans could potentially be a source of natural antioxidants.

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“…Metode MAE, merupakan metode ekstraksi dengan mengguanakan bantuan gelombang mikro. Metode MAE banyak diterapkan oleh peneliti untuk mengekstrak alkaloid diantaranya seperti ekstraksi alkaloid pada Sthepanica sinicav (Xie et al, 2014), Crotalaria sessiliflora L (Tang et al, 2017). Pemilihan MAE dipilih karena memiliki kelebihan yaitu waktu ekstraksi relatif lebih singkat, lebih selektif serta jumlah rendemen yang relatif lebih banyak.…”

Section: Pendahuluanunclassified

Penentuan Kadar Alkaloid Total pada Ekstrak Bunga Pepaya (Carica papaya L) dengan Metode Microwave Assisted Extraction

Mukhaimin

Latifahnya

Puspitasari

2018

CHEESA

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Bunga pepaya (Carica papaya L) mengandung senyawa bioaktif alkaloid seperti carpaine, pseudocarpaine dan dehydrocarpaine. Alkaloid tersebut dipercaya bermanfaat untuk sebagai obat antidengue, anticancer, antimicrobial, antiparasitic, anti-inflammatory, antioxidant, antidiabetic activities. Pada penelitian ini, bunga pepaya diekstrak menggunakan metode ekstraksi padat-cair menggunakan metode Microwave Assisted Extraction (MAE) dan ekstraksi cair-cair. Sebelum proses ekstraksi, bunga pepaya dikeringkan dan dikecilkan hingga memiliki ukuran partikel sebesar 0,125 mm. Bunga pepaya yang telah kering diekstraksi menggunakan metanol 80% (v/v untuk menentukan pengaruh waktu ekstraksi (1-5 menit), daya microwave (40, 120, 200, 280 Watt), dan rasio sampel terhadap pelarut ( 1:10 ; 1:15 ; 1:20 b/v) terhadap kadar alkaloid total. Hasil ekstrak menunjukkan hasil positif adanya alkaloid setelah diuji dengan pereaksi Mayer dengan terbentuknya endapan berwarna putih kekuningan. Adapun kadar alkaloid total terbesar adalah 0,02981 mg/g sampel dengan kondisi operasi ekstraksi waktu ekstraksi 3 menit, rasio sampel terhadap pelarut 1:10 (m/v) serta daya microwave 40 Watt.

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Simultaneous extraction and separation of flavonoids and alkaloids from Crotalaria sessiliflora L. by microwave-assisted cloud-point extraction

Cited by 66 publications

References 31 publications

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Ultrasonic microwave-assisted extraction of polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans

Penentuan Kadar Alkaloid Total pada Ekstrak Bunga Pepaya (Carica papaya L) dengan Metode Microwave Assisted Extraction

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