Catalytic Reduction of 4-Nitrophenol Using Biogenic Silver Nanoparticles Derived from Papaya (Carica papaya) Peel extract

Prasad, C. V. R. K.; Srinivasulu, K.

doi:10.4172/2469-9764.1000104

Cited by 16 publications

(4 citation statements)

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“…and other biomolecules in the papaya peel extract that might have acted as capping and stabilizing agents in the VPPE-AuNP synthesis process. Similar results were also reported previously [30,73,74]. The deviations in the VPP extract absorption peak values and the VPPE-AuNPs might be attributed to the VPPE-AuNP synthesis, reducing, capping, and stabilizing procedure [75].…”

Section: Vppe-aunp Manufacture and Analysissupporting

confidence: 90%

“…In addition, there is also evidence that spherical nanoparticles showed a greater photocatalytic degradation effect [56,107]. The catalytic degradation of by silver nanoparticles synthesized using papaya peel extract has been reported by Prasad et al [74]. In another study, the photocatalytic degradation of palm oil mill effluents by copper oxide nanoparticles synthesized by papaya peel aqueous extract was also reported [73].…”

Section: Photocatalytic Dye Degradation Effect Of Vppe-aunpsmentioning

confidence: 78%

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Sustainable Utilization of Food Biowaste (Papaya Peel) Extract for Gold Nanoparticle Biosynthesis and Investigation of Its Multi-Functional Potentials

Patra,

Shin,

Yang

et al. 2024

Antioxidants

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Papaya contains high amounts of vitamins A, C, riboflavin, thiamine, niacin, ascorbic acid, potassium, and carotenoids. It is confirmed by several studies that all food waste parts such as the fruit peels, seeds, and leaves of papaya are potential sources of phenolic compounds, particularly in the peel. Considering the presence of numerous bioactive compounds in papaya fruit peels, the current study reports a rapid, cheap, and environmentally friendly method for the production of gold nanoparticles (AuNPs) employing food biowaste (vegetable papaya peel extract (VPPE)) and investigated its antioxidant, antidiabetic, tyrosinase inhibition, anti-inflammatory, antibacterial, and photocatalytic degradation potentials. The phytochemical analysis gave positive results for tannins, saponins, steroids, cardiac steroidal glycoside, protein, and carbohydrates. The manufactured VPPE-AuNPs were studied by UV–Vis scan (with surface plasmon resonance of 552 nm), X-ray diffraction analysis (XRD) (with average crystallite size of 44.41 nm as per the Scherrer equation), scanning electron microscopy–energy-dispersive X-ray (SEM-EDS), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), particle size, zeta potential, etc. The mean dimension of the manufactured VPPE-AuNPs is 112.2 d.nm (PDI—0.149) with a −26.1 mV zeta potential. The VPPE-AuNPs displayed a significant antioxidant effect (93.24% DPPH scavenging and 74.23% SOD inhibition at 100 µg/mL); moderate tyrosinase effect (with 30.76%); and substantial α-glucosidase (95.63%) and α-amylase effect (50.66%) at 100 µg/mL. Additionally, it was found to be very proficient in the removal of harmful methyl orange and methylene blue dyes with degradation of 34.70% at 3 h and 24.39% at 5 h, respectively. Taken altogether, the VPPE-AuNPs have been proven to possess multiple biopotential activities, which can be explored by the food, cosmetics, and biomedical industries.

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Section: Vppe-aunp Manufacture and Analysissupporting

confidence: 90%

Section: Photocatalytic Dye Degradation Effect Of Vppe-aunpsmentioning

confidence: 78%

Sustainable Utilization of Food Biowaste (Papaya Peel) Extract for Gold Nanoparticle Biosynthesis and Investigation of Its Multi-Functional Potentials

Patra,

Shin,

Yang

et al. 2024

Antioxidants

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“…The results here indicate that the degradation of 4-NP start immediately with addition of AgNPs and after 10 min, a significant decrease in the intensity of 4-NP was observed. Along with the reduction of 4-NP peak, there was emergence of a new peak at 296 nm which indicates the conversion of 4-NP to 4-AP [36,37]. So, these data indicates the catalytic potential of synthesised ANL-AgNPs.…”

Section: Evaluation Of Catalytic Activity Of Agnpsmentioning

confidence: 57%

Evaluation of antibiofilm and catalytic activity of biogenic silver nanoparticles synthesized from Acacia nilotica leaf extract

Arya

Kumari

Sharma

et al. 2018

Adv. Nat. Sci: Nanosci. Nanotechnol.

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In the current research of bacteriology, the biofilm infections are becoming serious issues. The biofilm has potential resistant towards antibiotics, even at higher concentration, due to the protective covering that enable unavailability of these antibiotics towards bacteria residing inside. Thus to combat these problems, biogenic silver nanoparticles (AgNPs) of spherical shape were synthesized having potential against biofilm forming bacteria. Here, we focused on the green synthesis owing to its inherent features such as simplicity, eco-friendliness, cheap rate and rapidity. We have synthesized AgNPs using the aqueous extract of Acacia nilotica leaf. The bioactive compounds present in the extract are responsible for the reduction of to . The synthesis conditions were optimized using critical parameters and the optimized one was then characterized via UV-Vis spectroscopy, dynamic light scattering, transmission electron microscopy, x-ray diffraction and Fourier transform infrared spectroscopy. Further, synthesized AgNPs were used to evaluate strong antibacterial activity and catalytic potential that was assessed against degradation of anthropogenic pollutant 4-NP and azo dyes: methylene blue and congo red.

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“…Error! Bookmark not defined.The peel extracts function for bio-reduction of silver ions to yield metallic nanoparticles [35] ( Figure 12).  Papaya peel extracts showed antibacterial properties anti-oxidant activity, anti-cancer activity and induced apoptosis [36][37][38].…”

Section: Therapautic and Medicinal Valuesmentioning

confidence: 99%

Medicinal Uses of Carica Papaya

Basalingappa¹

2018

JONAM

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ObjectiveMedicinal plants have been used for various diseases traditionally in many countries, because of its advantages like easy availability, effective and economical in therapeutics. Carica papaya, also called as pawpaw is traditionally cultivated for fruit. Carica papaya belonging to the genus Carica. It contains the enzyme papain, chymopapain which is biologically active and has medicinal and nutritional values. All parts of the plant like leaves, fruits, seeds, flowers and roots can be used by humans as food and medicinal purposes. This plant has therapeutic uses like anti-amoebic, anti-microbial, anti fertility activity, anti-ulcerogenic, anti-fungal, antitumor, hypolipidaemic and employ in wound -healing activity, free radical scavenging activity, diuretic activity, uterotonic activity. In this review we have discussed details about papaya plant parts and its uses.

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Catalytic Reduction of 4-Nitrophenol Using Biogenic Silver Nanoparticles Derived from Papaya (Carica papaya) Peel extract

Cited by 16 publications

References 0 publications

Sustainable Utilization of Food Biowaste (Papaya Peel) Extract for Gold Nanoparticle Biosynthesis and Investigation of Its Multi-Functional Potentials

Sustainable Utilization of Food Biowaste (Papaya Peel) Extract for Gold Nanoparticle Biosynthesis and Investigation of Its Multi-Functional Potentials

Evaluation of antibiofilm and catalytic activity of biogenic silver nanoparticles synthesized from Acacia nilotica leaf extract

Medicinal Uses of Carica Papaya

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