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All Journal Majalah Obat Tradisional Sciences of Pharmacy
Zainab, Muhammad
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Health Professions Medicine & Pharmacology Public Health

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Phytoconstituents and In Vitro Free Radical Scavenging Potential of n-Hexane and Aqueous Fractions of Cucurbita maxima and Leptadenia hastata Dahiru, Mubarak Muhammad; Danga, James; Oni, Abdulhasib Oluwatobi; Zoaka, Hesper Alex; Peter, Rejoice Daniel; Zira, Usanye; Christopher, Patience; Alkasim, Hauwa Yahaya; Zainab, Muhammad
Sciences of Pharmacy Volume 3 Issue 4
Publisher : ETFLIN Publishing House

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/sciphar0304265

Abstract

The present study explored the phytoconstituents and radical scavenging activity of the respective n-hexane and aqueous fractions of Cucurbita maxima (CMHF and CMAF) and Leptadenia hastata (LHHF and LHAF) for potential application in oxidative stress-related ailments. The phytoconstituents were qualitatively determined and characterized using Fourier-transform Infrared (FTIR), while the antioxidant activity was determined in vitro. Alkaloids were present in only the aqueous fractions of C. maxima and L. hastata, while saponins, steroids, and flavonoids were detected in all the fractions. The FTIR revealed the presence of functional groups, including alcohols, sulfonates, alkenes, alkanes, amines, and aromatics in both plant fractions. The LHHF (35.53 ±2.11 ascorbic acid (AA) equivalent µg/mL) exhibited a significantly (p<0.05) higher total reducing power (TRP) than all the other fractions. The CMHF (69.11 ±2.56 AAE µg/mL) demonstrated a significantly (p<0.05) higher total antioxidant capacity (TAC) than all the other fractions. For the ferric thiocyanate (FTC) assay, the highest inhibition was exhibited by LHHF (79.78 ± 3.24%), significantly (p<0.05) higher than AA (26.46 ± 2.12%), CMHF (69.77 ± 3.16%), and CMAF (43.80 ± 2.12%). In the thiobarbituric acid assay, the lowest MDA concentration was exhibited by the CMHF (0.07 ±0.01 nmol/mL), significantly (p<0.05) lower than all the other fractions and ascorbic acid. Conclusively, the n-hexane fraction of both plants presents potential sources of novel antioxidant compounds with significant free radical scavenging and anti-lipid peroxidation activities, applicable in ailments linked to oxidative stress.
Fourier-transform Infrared (FTIR) Characterization and Radical Scavenging Activity Ziziphus spina-christi (Rhamnaceae) Rootbark Fractions Dahiru, Mubarak Muhammad; Hauwa, Alkasim Yahaya; Zainab, Muhammad; Pius, Pwadumadi; Yakubu, Nuhu Dangana
Majalah Obat Tradisional Vol 30, No 2 (2025)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mot.95278

Abstract

This study focused on the secondary metabolite characterization and radical scavenging activity of the chloroform (CF), ethyl acetate (EF), and aqueous fractions (AF) of Ziziphus spina-christi to ascertain its therapeutic potential against oxidative stress. Fourier-transform infrared (FTIR) characterization and determination of in vitro radical scavenging activity of the plant were carried out. Alkaloids, saponins, and flavonoids were present in all the fractions with steroids absent in the AF. The FTIR characterization detected alcohol, conjugated alkenes, and amine groups in the CF and EF. However, alkanes, aromatic amines, sulfonates, and monosubstituted alkanes were also detected in the latter. Moreover, carboxylic acid, alkane, alkene, amines, and phenols were identified in the AF. The EF (72.46 ± 0.55 µg/ml AAE) and AF (71.51± 0.46 µg/ml AAE) demonstrated a significantly (p < 0.05) higher total antioxidant capacity (TAC) than CF (50.33 ±0.27 µg/ml AAE). The AF (54.07 ± 0.97 µg/ml AAE) exhibited a significantly (p < 0.05) higher total reducing power (TRP) than the EF (42.76 ± 1.60 µg/ml AAE) and CF (30.13 ± 1.32 µg/ml AAE). A significantly (p < 0.05) higher percentage of lipid peroxidation inhibition was exhibited by the CF (71.25% ±3.41) compared to the EF (54.17% ±2.66). Moreover, all the fractions showed significantly (p < 0.05) higher inhibition than ascorbic acid (18.33% ±1.56). The CF (0.16 ±0.01 nmol/ml) and EF (0.21 ±0.01 nmol/ml) demonstrated a significantly (p < 0.05) lower MDA concentration than the AF (0.42 ±0.01 nmol/ml) and ascorbic acid (0.38 ±0.02 nmol/ml). Conclusively, the Z. spina rootbark has potential antioxidant application in oxidative stress therapy with a focus on anti-lipid peroxidation for the CF though the AF has better TAC and TRP.
Co-Authors Alkasim, Hauwa Yahaya Christopher, Patience Dahiru, Mubarak Muhammad Danga, James Hauwa, Alkasim Yahaya Oni, Abdulhasib Oluwatobi Peter, Rejoice Daniel Pius, Pwadumadi Yakubu, Nuhu Dangana Zira, Usanye Zoaka, Hesper Alex