One pot synthesis and characterization of gold nanocatalyst using Sacha inchi (Plukenetia volubilis) oil: Green approach

Kumar, Brajesh; Smita, Kumari; Cumbal, Luis; Debut, Alexis

doi:10.1016/j.jphotobiol.2016.02.023

Cited by 40 publications

(19 citation statements)

References 34 publications

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“…The FTIR analysis shows that the Sacha inchi oil contains Omega fatty acids and proteins. The FTIR results of this study were similar to the findings by other researchers (Kumar, Smita, Cumbal, & Debut, ; Vicente et al, ).…”

Section: Resultssupporting

confidence: 92%

Screw press extraction of Sacha inchi seeds: Oil yield and its chemical composition and antioxidant properties

Muangrat

Veeraphong

Chantee

2018

J Food Process Preserv

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In this work, the effects of operating parameters, such as drying temperature (60, 75, 90 °C) and press head temperature (60, 75, 90 °C), on oil yields from Sacha inchi (Plukenetia volubilis L.) seeds were studied using a single screw press machine. It is found that non‐dried Sacha inchi samples gave a high oil yield compared to dried samples for all press head temperatures. These Sacha inchi oils contained high content of polyunsaturated fatty acids, mainly α‐linolenic and linoleic acids. The total content of phenolic compounds in these oils ranges from 30.46 to 120.32 mg GAE/100g oil, DPPH IC50 value 317.33 to 663.54 mg/mL, and ABTS IC50 value 215.48 to 301.75 mg/mL. Additionally, these oil samples have peroxide (1.94–2.27 meq O2/kg oil), iodine (102.66–104.05 g I2/100g oil), saponification (182.18–195.11 mg KOH/g oil) and acid (1.94–5.90 mg KOH/g oil) values, as well as the free fatty acid percentages (0.97–2.97%). Practical applications Screw press extraction is a cost‐efficient method, requiring a shorter extraction time than solvent extraction process and leaving no solvent residues in the oil product. Here, a single screw press machine at different press head temperatures was used to extract oil from Sacha inchi seeds. The various Sacha inchi oil extracts had differences in their fatty acid levels. Additionally, the Sacha inchi oil was found to contain total phenolic compounds, which can be potentially used as an alternative source of natural antioxidants in pharmaceutical or food industries.

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Section: Resultssupporting

confidence: 92%

Screw press extraction of Sacha inchi seeds: Oil yield and its chemical composition and antioxidant properties

Muangrat

Veeraphong

Chantee

2018

J Food Process Preserv

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“…C 0 /C t is measured from the relative intensity of absorbance (A 0 /A t ). The linear relationship of ln (A 0 /A t ) versus time indicates that the photodegradation of MB follows first-order kinetics [ 35 , 36 ].…”

Section: Methodsmentioning

confidence: 99%

“…Thus, the utilization of these lost crops in nanotechnology and green chemistry has been continued by our group: SI leaves for the synthesis of silver nanoparticles [ 34 ], SI oil for the synthesis of silver [ 35 ] and gold nanoparticles [ 36 ] and SI shell biomass for the synthesis of silver nanoparticles [ 37 ] and removal of Cu 2+ /Pb 2+ [ 38 ]. Our research on the SI plant may support an additional source of revenue for farmers on the western and northern edges of South America, such as Colombia, Ecuador, Venezuela, Peru, Bolivia, Brazil and Suriname, and in the Lesser Antilles [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

“…This nanoparticle is used in the degradation of methylene blue (MB), one of the most common organic pollutants in wastewater from the dye industry ( Figure 1 ). It is environmentally undesirable at a trace level and excessive usage of MB causes serious diseases in human beings [ 35 , 36 ]. Hence, the development of an ecofriendly method for the removal of MB from wastewater is necessary.…”

Section: Introductionmentioning

confidence: 99%

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Andean Sacha Inchi (Plukenetia Volubilis L.) Leaf-Mediated Synthesis of Cu2O Nanoparticles: A Low-Cost Approach

et al. 2020

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In this work, Andean sacha inchi (Plukenetia volubilis L.) leaves were used to prepare monodispersed cuprous oxide (Cu2O) nanoparticles under heating. Visual color changes and UV-visible spectroscopy of colloidal nanoparticles showed λmax at 255 nm, revealing the formation of copper oxide nanoparticles. Transmission electron microscopy and dynamic light scattering analysis indicated that the prepared nanoparticles were spherical with an average size of 6–10 nm. The semi-crystalline nature and Cu2O phase of as-prepared nanoparticles were examined by X-ray diffraction. Fourier-transform infrared spectroscopy confirmed the presence of polyphenols, alkaloids and sugar in the sacha inchi leaf, allowing the formation of Cu2O nanoparticles from Cu2+. Additionally, as-synthesized Cu2O nanoparticles exhibited good photocatalytic degradation activity against methylene blue (>78%, 150 min) with rate constant 0.0219106 min−1. The results suggested that the adopted method is low-cost, simple, ecofriendly and highly selective for the synthesis of small Cu2O nanoparticles and may be used as a nanocatalyst in the future in the efficient treatment of organic pollutants in water.

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“…65-2870. Gold which has a miller index (111), (200), (220) and (311) and 2θ is 38.18; 44.39; 64,65; 77.54 respectively [22]. Based on calculations using Scherrer equation obtained an average crystallite size of gold nanoparticles is ± 15.47 nm.…”

Section: Effect Of Concentration Of Imperata Cylindrica L Leaf Extracmentioning

confidence: 98%

Effect of Concentration of Imperata Cylindrica L Leaf Extract on Synthesis Process of Gold Nanoparticles

Saputra¹,

Yulizar

Sudirman

2018

JUSAMI

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EFFECT OF CONCENTRATION OF IMPERATA CYLINDRICA L LEAF EXTRACT ON SYNTHESIS PROCESS OF GOLD NANOPARTICLES.Gold Nanoparticles (GoldNPs) successful was performed using HAuCl 4 precursor as Au 3+ ion source with 7x10 -4 M concentration. The research aims to knows effect of concentration variation of Imperata cylindrica L leaf extract on synthesis process of gold nanoparticles. The research used of green synthesis method. Colloid of nanoparticles which is formed in analyzed using UV-Vis Spectrophotometer, FT-IR Spectroscopy, PSA, PZC, XRD and TEM. The results of synthesis showed the best concentration of Imperata cilyndrica L leaf extract at 3,46%, happen a shift of wavelength at UV-Vis from 216 nm to 530 nm with 1.779 absorbance value. The PSA analysis showed a particle size of 51.87 nm and a PZC value of -19.2 mV. The result of FT-IR indicated a shift of wavenumber in the hidroxyl group from 3354 cm -1 to 3390 cm -1 and showed a interaction of hydroxyl group at imperata cylindrica L leaf extract with Au 3+ ion. TEM analysis shows the morphology of GoldNPs that spherical shape with a particle size of 20 nm. XRD calculation results show crystallite size of gold nanoparticles is 15.47 nm.Keywords: Imperata cylindrica L, Gold Nanoparticles (GoldNPs), Green Synthesis ABSTRAK PENGARUH KONSENTRASI EKSTRAK DAUN ILALANG (IMPERATA CYLINDRICA L) DALAM PROSES SINTESIS NANOPARTIKEL EMAS. Nanopartikel Emas (GoldNPs) berhasil dilakukan menggunakan prekursor HAuCl 4 sebagai sumber ion Au3+ dengan konsentrasi 7x10 -4 M. Tujuan penelitian ini yaitu ingin mengetahui pengaruh variasi konsentrasi ekstrak daun ilalang dalam proses pembentukan nanopartikel emas. Metode yang digunakan pada penelitian ini yaitu metode green synthesis. Koloid nanopartikel yang terbentuk di karakterisasi menggunakan Spektrofotometer UV-Vis, Spektroskopi FT-IR, PSA, PZC, XRD dan TEM. Hasil penelitian menunjukkan konsentrasi ekstrak daun ilalang yang terbaik yaitu 3,46% terlihat adanya pergeseran panjang gelombang pada UV-Vis dari 216 nm menjadi 530 nm dengan nilai absorbansi tertinggi yaitu 1,779. Analisis PSA menunjukkan ukuran rata-rata nanopartikel emas sebesar 51,87 nm dan nilai PZC sebesar -19,2 mV. Hasil FT-IR menunjukkan adanya interaksi pada gugus hidroksil pada ekstrak daun ilalang dengan ion Au 3+ , terlihat adanya pergeseran bilangan gelombang dari 3354 cm -1 menjadi 3390 cm -1 . Berdasarkan analisis TEM menunjukkan morfologi nanopartikel emas berbentuk sphere dengan ukuran partikel rata-rata 20 nm. Hasil perhitungan XRD menunjukkan ukuran kristalit nanopartikel emas sebesar 15,47 nm.

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One pot synthesis and characterization of gold nanocatalyst using Sacha inchi (Plukenetia volubilis) oil: Green approach

Cited by 40 publications

References 34 publications

Screw press extraction of Sacha inchi seeds: Oil yield and its chemical composition and antioxidant properties

Screw press extraction of Sacha inchi seeds: Oil yield and its chemical composition and antioxidant properties

Andean Sacha Inchi (Plukenetia Volubilis L.) Leaf-Mediated Synthesis of Cu2O Nanoparticles: A Low-Cost Approach

Effect of Concentration of Imperata Cylindrica L Leaf Extract on Synthesis Process of Gold Nanoparticles

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