Chemical composition, FTIR Studies and Antibacterial Activity of Passiflora edulis f. edulis (Fruit)

Rizwana, Humaira; Otibi, Fatimah Al; Al-malki, Nouf

doi:10.22207/jpam.13.4.64

Cited by 14 publications

(6 citation statements)

References 27 publications

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“…Both were then ground into a fine powder separately with a mixer grinder and subjected to extraction with solvents. Methanol and aqueous extracts of the pulp and seeds were prepared as described by Rizwana et al (2019) . Briefly, 20 g of powdered pulp and seeds were soaked separately in methanol and distilled water and placed in a rotary shaker (Max Q-2000; Thermo Fisher Scientific) for 24 h. Then, the extracts were filtered and dried on a rotary evaporator and reconstituted with the extracting solvents to the desired concentrations (0.5%, 1%, 2%, 4% and 6% w/v).…”

Section: Methodsmentioning

confidence: 99%

Postharvest disease management of Alternaria spots on tomato fruit by Annona muricata fruit extracts

Rizwana

Bokahri

Alsahli

et al. 2021

Saudi Journal of Biological Sciences

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The aim of this study was to assess Annona muricata L. fruit extracts as an alternative to synthetic fungicide against Alternaria alternata (Fries) Keissler, the causative agent of black spots of tomato fruit. Antifungal activities of A. muricata pulp and seed extracts were tested both in vitro and in vivo. The seed extracts were more potent at inhibiting A. alternata than the pulp extracts. The in vitro assay showed maximum inhibition of radial mycelial growth of A. alternata (90%) by methanol seed extracts, at the highest concentration of 6%. Similarly, the in vivo assay showed marked reduction in lesion diameter (2.1 mm) and consequent disease inhibition (84%) on the tomato fruit treated with methanol seed extracts. Scanning electron microscopy showed that A. muricata extracts significantly damaged the morphology of hyphae and conidial structures. The FT-IR spectrum obtained from methanol extracts showed bands representing important bioactive compounds that possess antifungal activity. Based on our findings, Annona muricata fruit extracts can be further explored as a potential, excellent alternative approach to control the postharvest Alternaria spots of tomato fruit.

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Section: Methodsmentioning

confidence: 99%

Postharvest disease management of Alternaria spots on tomato fruit by Annona muricata fruit extracts

Rizwana

Bokahri

Alsahli

et al. 2021

Saudi Journal of Biological Sciences

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“…The peak of 1050 cm -1 was C-O stretching coupled with C-O bending of the C-OH of carbohydrates. The peak at 784 cm -1 was produced by =CH-H or C-H bending (alkenes and aromatics) (Namani et al, 2016;Nnorom & Onuegbu, 2019;Rizwana et al, 2019;Talari et al, 2017). The FTIR results for cocona spray dried powders maintained the characteristic peaks of pulp at 1725 cm -1 in MD:HC 100:0 powder (Figure 2, curve D), and 1082 cm -1 in MD:HC powder 0:100 (Figure 2, curve F).…”

Section: Ftir Spectroscopymentioning

confidence: 92%

Influence of combined hydrolyzed collagen and maltodextrin as carrier agents in spray drying of cocona pulp

Vargas-Muñoz

Kurozawa

2020

Braz. J. Food Technol.

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This work aimed to evaluate the effect of carrier agents containing maltodextrin and protein, represented by hydrolyzed collagen on the spray drying process of cocona (Solanum sessiliflorum Dunal), and on the properties of the resulting powders. We used pre-established proportions between the solids of cocona pulp and the carrier agents (P:CA), and among carrier agents themselves, maltodextrin and hydrolyzed collagen, (MD:HC). The process was carried out in a spray dryer at an inlet air temperature of 120 ºC. We prepared twelve feed solutions containing 20% of total solids, with P:CA ratios of 1:3, 1:4, 1:5 and 1:6, and MD:HC ratios of 0:100, 50:50, and 100:0. Solids recovery was obtained for the evaluation of the spray drying process. The cocona pulp powders were analyzed for moisture content, water activity, particle size distribution, mean particle diameter, chemical structure (FTIR) and color. For a P:CA of 1:6, for the sample formulated with hydrolyzed collagen only, solids recovery (96.2%) was much higher than that of the sample with maltodextrin only (39.2%). The chemical structure of cocona powders can be considered a sign of a good encapsulation process. The color of the cocona pulp powder was similar to that of the carrier agents. The formulation with highest content of hydrolyzed collagen improved the recovery of solids, guaranteed the cocona pulp encapsulation, and obtained fruit powders with bioactive properties.

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“…The spectrometer (Nicolet-6700, Thermo Fisher Scientific Inc., Waltham, MS, USA) enjoying a ray splitter and a sensor (DTGS) equipped with OMNIC software was used to collect and dissect the diapason in the checkup range of 500-4000 cm −1 . The obtained IR spectra were used to interpret the functional groups present according to the guidelines of LibreTexts libraries https://chem.libretexts.org/ (Accessed on 31 December 2022) [67].…”

Section: Gas Chromatography-mass Spectrometry (Gc-ms)mentioning

confidence: 99%

Silver Nanoparticles of Artemisia sieberi Extracts: Chemical Composition and Antimicrobial Activities

Al-Otibi,

Alshammry,

Alharbi

et al. 2023

Plants

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Background: Artemisia sieberi (mugwort) is a member of the daisy family Asteraceae and is widely propagated in Saudi Arabia. A. sieberi has historical medical importance in traditional societies. The current study aimed to assess the antibacterial and antifungal characteristics of the aqueous and ethanolic extracts of A. sieberi. In addition, the study investigated the effect of silver nanoparticles (AgNPs) synthesized from the A. sieberi extract. Methods: The ethanolic and aqueous extracts and AgNPs were prepared from the shoots of A. sieberi. The characteristics of AgNPs were assessed by UV–visible spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS). The antibacterial experiments were performed against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa. The fungal species used were Candida parapsilosis, Candida krusei, Candida famata, Candida rhodotorula, and Candida albicans. The antibacterial and antifungal characteristics were evaluated by measuring the diameter of growing organisms in Petri dishes treated with different concentrations of either extracts or AgNPs compared to the untreated controls. Furthermore, TEM imaging was used to investigate any ultrastructure changes in the microbes treated with crude extracts and AgNO3. Results: The ethanolic and aqueous extracts significantly decreased the growth of E. coli, S. aureus, and B. subtilis (p < 0.001), while P. aeruginosa was not affected. Unlike crude extracts, AgNPs had more substantial antibacterial effects against all species. In addition, the mycelial growth of C. famata was reduced by the treatment of both extracts. C. krusei mycelial growth was decreased by the aqueous extract, while the growth of C. parapsilosis was affected by the ethanolic extract and AgNPs (p < 0.001). None of the treatments affected the growth of C. albicans or C. rhodotorula. TEM analysis showed cellular ultrastructure changes in the treated S. aureus and C. famata compared to the control. Conclusion: The biosynthesized AgNPs and extracts of A. sieberi have a potential antimicrobial characteristic against pathogenic bacterial and fungal strains and nullified resistance behavior.

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Chemical composition, FTIR Studies and Antibacterial Activity of Passiflora edulis f. edulis (Fruit)

Cited by 14 publications

References 27 publications

Postharvest disease management of Alternaria spots on tomato fruit by Annona muricata fruit extracts

Postharvest disease management of Alternaria spots on tomato fruit by Annona muricata fruit extracts

Influence of combined hydrolyzed collagen and maltodextrin as carrier agents in spray drying of cocona pulp

Silver Nanoparticles of Artemisia sieberi Extracts: Chemical Composition and Antimicrobial Activities

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