R. Ahmad

Publications74
h-index13
Citations567
Highly Influential Citations16
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Antioxidant, radical-scavenging, anti-inflammatory, cytotoxic and antibacterial activities of methanolic extracts of some Hedyotis species.
The antioxidant, radical-scavenging, anti-inflammatory, cytotoxic and antibacterial activities of methanolic extracts of seven Hedyotisspecies were investigated. The antioxidant activity was… Expand
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Evaluation of antioxidant potential of Artocarpus heterophyllus L. J33 variety fruit waste from different extraction methods and identification of phenolic constituents by LCMS.
Artocarpus heterophyllus J33 (AhJ33) fruit is a popular and valuable jackfruit variety in Malaysia. For export, the pulp has to be separated from the skin which is usually discarded. Hence, the… Expand
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Evaluation of antioxidant potential of medicinal plants from Malaysian Rubiaceae (subfamily Rubioideae )
This paper evaluates the antioxidant potential of 22 species of medicinal plants from Malaysian  Rubiaceae . The ferric thiocyanate (FTC), thiobarbituric acid (TBA), total phenolic content (TPC) and… Expand
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Radical scavenging and neurotoxicity of four varieties of Ficus deltoidea
Ficus deltoidea or locally known as ‘Mas Cotek’ is a very common herb found throughout the tropics is available in many varieties. In Malaysia, traditional practitioners use this plant in herbal… Expand
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Malaysianol A, a new trimer resveratrol oligomer from the stem bark of Dryobalanops aromatica.
A new resveratrol trimer, malaysianol A (1), five known resveratrol oligomers: laevifonol (2), ampelopsin E (3), α-viniferin (4), ε-viniferin (5), diptoindonesin A (6), and bergenin (7) have been… Expand
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Anthraquinones with Antiplasmodial Activity from the Roots of Rennellia elliptica Korth. (Rubiaceae)
Dichloromethane root extract of Rennellia elliptica Korth. showed strong inhibition of Plasmodium falciparum growth in vitro with an IC50 value of 4.04 µg/mL. A phytochemical study of the… Expand
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Antioxidant activity, NMR, X-ray, ECD and UV/vis spectra of (+)-terrein: Experimental and theoretical approaches
Abstract Fungal metabolite terrein isolated from Aspergillus terreus is endowed with diverse biological and antioxidant activities. To determine the stereochemistry of the isolated terrein, we… Expand
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FLAVONOID DISTRIBUTION IN FOUR VARIETIES OF Ficus deltoidea (JACK)
We have previously reported the antioxidant and neuroprotective activities of the aqueous extract of four varieties of Ficus deltoidea ( Fd ) (Moraceae) namely var kunstleri ( Fdvk ), var… Expand
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Phytochemical Studies and Pharmacological Activities of Plants in Genus Hedyotis/Oldenlandia
ABSTRACT: This paper attempts to present a review on the study of phytochemical and pharmacological activities of plants from the genus Hedyotis (Rubiaceae) in the last seven decades, which include… Expand
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Flavanones from the Flower of Macaranga triloba
Macaranga triloba belongs to the family of Euphorbiaceae. Investigation on the dichloromethane extract of flower of Macaranga triloba collected at Hulu Terengganu, Malaysia has yielded four flavanone… Expand
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