Anti‐cholinesterase and antioxidant properties of alkaloid and phenolic‐rich extracts from pawpaw ( Carica papaya ) leaf: A comparative study

2020 ◽  
Vol 36 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Bukola C. Adedayo ◽  
Sunday I. Oyeleye ◽  
Bathlomew M. Okeke ◽  
Ganiyu Oboh
Keyword(s):  
Comparative Study ◽  
Carica Papaya ◽  
Antioxidant Properties

scholarly journals Beneficial Role of Carica papaya Extracts and Phytochemicals on Oxidative Stress and Related Diseases: A Mini Review

Biology ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 287
Author(s):  
Yew Rong Kong ◽  
Yong Xin Jong ◽  
Manisha Balakrishnan ◽  
Zhui Ken Bok ◽  
Janice Kwan Kah Weng ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Signaling Pathways ◽  
Chronic Diseases ◽  
Carica Papaya ◽  
Antioxidant Properties ◽  
Natural Antioxidants ◽  
The Body ◽  
Health Conditions ◽  
Chemical Components ◽  
Impaired Wound Healing

Oxidative stress is a result of disruption in the balance between antioxidants and pro-oxidants in which subsequently impacting on redox signaling, causing cell and tissue damages. It leads to a range of medical conditions including inflammation, skin aging, impaired wound healing, chronic diseases and cancers but these conditions can be managed properly with the aid of antioxidants. This review features various studies to provide an overview on how Carica papaya help counteract oxidative stress via various mechanisms of action closely related to its antioxidant properties and eventually improving the management of various oxidative stress-related health conditions. Carica papaya is a topical plant species discovered to contain high amounts of natural antioxidants that can usually be found in their leaves, fruits and seeds. It contains various chemical compounds demonstrate significant antioxidant properties including caffeic acid, myricetin, rutin, quercetin, α-tocopherol, papain, benzyl isothiocyanate (BiTC), and kaempferol. Therefore, it can counteract pro-oxidants via a number of signaling pathways that either promote the expression of antioxidant enzymes or reduce ROS production. These signaling pathways activate the antioxidant defense mechanisms that protect the body against both intrinsic and extrinsic oxidative stress. To conclude, Carica papaya can be incorporated into medications or supplements to help manage the health conditions driven by oxidative stress and further studies are needed to investigate the potential of its chemical components to manage various chronic diseases.

In vitro and in vivo antioxidant properties of ferulic acid: A comparative study with other natural oxidation inhibitors

2009 ◽  
Vol 114 (2) ◽  
pp. 466-471 ◽  
Author(s):  
S ITAGAKI ◽  
T KUROKAWA ◽  
C NAKATA ◽  
Y SAITO ◽  
S OIKAWA ◽  
...  
Keyword(s):  
Comparative Study ◽  
Ferulic Acid ◽  
Antioxidant Properties ◽  
Oxidation Inhibitors

scholarly journals A comparative study of extraction techniques for maximum recovery of bioactive compounds from Ganoderma lucidum spores

2020 ◽  
Vol 49 (1) ◽  
Author(s):  
Diana Carolina Saavedra Plaza ◽  
Carlos Ricardo Soccol ◽  
Miguel Daniel Noseda ◽  
Valcineide Oliveira de Andrade Tanobe ◽  
Oranys Marin ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Antioxidant Activity ◽  
Comparative Study ◽  
Ganoderma Lucidum ◽  
Antioxidant Properties ◽  
Extraction Techniques ◽  
Microwave Exposure ◽  
Vis Spectroscopy ◽  
Spore Walls ◽  
Microwave Heat

This study aimed at evaluating effective methods for breaking the hard and insoluble spores of Ganoderma lucidum to recover functional biomolecules. Rupture techniques were evaluated such as manual maceration (RM), maceration with spheres of various materials (BR), and microwave exposure plus maceration with steel/chrome spheres (MBR1). Spore rupture was evaluated using UV-Vis spectroscopy, which showed vibrations of 2955, 1642, 1240, 1080 and 1746 cm-1 corresponding to changes in spore walls. The MBR1 extract contained the largest amounts of carbohydrates (19.80 mg.g-1 spores) and polyphenols (2.21 mg.g-1 spores), whereas the BR extract had higher antioxidant activity (57.22%Inb DPPH). The MBR1 and BR extracts contained 62.2 and 73.5% glucose, respectively. Both methods also involved significant extraction of carbohydrates and proteins. The best way to extract biomolecules from spore walls is to perform a microwave heat treatment and break the walls with steel/chrome spheres; this produces large quantities of carbohydrates with antioxidant properties.

scholarly journals A Comparative Study on Antioxidant Properties of Two Phyllanthus Species Growing in Bangladesh

2013 ◽  
Vol 11 (2) ◽  
pp. 191-197 ◽  
Author(s):  
Ishrat Nimmi ◽  
Ismet Ara Jahan ◽  
M Hemayet Hossain ◽  
Mohammad Burhan Uddin ◽  
M Sohel Rana ◽  
...  
Keyword(s):  
Comparative Study ◽  
Methanol Extract ◽  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Test Methods ◽  
Total Phenolic ◽  
Solvent Volume

A comparative study of antioxidant properties on two varieties of Phyllanthus (Phyllanthus niruiri L. & Phyllanthus urinaria L. leaves) growing in Bangladesh was done in the present study. Five complimentary test methods namely DPPH free radical scavenging activity, reducing power assay, total antioxidant capacity, total phenolic and flavonoid contents determination were used for the evaluation of antioxidant properties of two species of Phyllanthus. In the present investigation for the evaluation of antioxidant activities the concentration is expressed by the ratio of crude sample per solvent volume instead of extract weight per solvent volume. Based on these concentrations the investigated P. niruri L. and P. urinaria L. leaves extracts exhibited significant results. At 2 mg/ml concentration DPPH radical scavenging capacity of the methanol extract of both the plants was found to show significant (>90%) activity which is comparable to Ascorbic acid and BHA. In case of reducing power tests for both the extract, the activity of P. urinaria is comparable to that of BHA and AA and that of P. niruiri is comparable to BHA. P. niruiri showed better antioxidant potential than that of P. urinaria based on the observed results of their corresponding methanol extract. DOI: http://dx.doi.org/10.3329/dujps.v11i2.14579 Dhaka Univ. J. Pharm. Sci. 11(2): 191-197, 2012 (December)

Phytochemical profiles, phototoxic and antioxidant properties of eleven Hypericum species – A comparative study

2018 ◽  
Vol 152 ◽  
pp. 162-173 ◽  
Author(s):  
Edoardo Napoli ◽  
Laura Siracusa ◽  
Giuseppe Ruberto ◽  
Alessandra Carrubba ◽  
Silvia Lazzara ◽  
...  
Keyword(s):  
Comparative Study ◽  
Antioxidant Properties ◽  
Phytochemical Profiles ◽  
Hypericum Species

Antioxidant properties, radical scavenging activity and biomolecule protection capacity of flavonoid naringenin and its glycoside naringin: a comparative study

2010 ◽  
Vol 90 (7) ◽  
pp. 1238-1244 ◽  
Author(s):  
Monica Cavia-Saiz ◽  
Maria D Busto ◽  
Maria Concepción Pilar-Izquierdo ◽  
Natividad Ortega ◽  
Manuel Perez-Mateos ◽  
...  
Keyword(s):  
Comparative Study ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Scavenging Activity

Comparative Study on the Phenolic Content, Antioxidant Properties and HPLC Fingerprinting of Three Varieties of C elosia Species

2014 ◽  
Vol 38 (6) ◽  
pp. 575-583 ◽  
Author(s):  
O.R. Molehin ◽  
S.A. Adefegha ◽  
G. Oboh ◽  
J.A. Saliu ◽  
M.L. Athayde ◽  
...  
Keyword(s):  
Comparative Study ◽  
Phenolic Content ◽  
Antioxidant Properties
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