Jul 2026· Journal of Fish Health· Vol 6, pp. 348-354· 0 citations· 19 references
Abstract
The green seaweed from the genus Halimeda is a marine biological resource that holds promise as a source of bioactive compounds, such as antioxidant compounds. The antioxidant activity may differ based on the assay technique since each technique relies on a unique reaction mechanism. This research intended to assess the antioxidant properties of crude Halimeda sp. extract from the Seribu Islands employing three techniques: DPPH, CUPRAC, and FRAP. The sample was obtained through maceration with methanol and subsequently assessed for free radical scavenging activity and metal ion reduction capability. The findings indicated that the CUPRAC method yielded the greatest antioxidant activity, scoring 147.91 µmol Trolox/g extract, while the FRAP method followed with 83.61 µmol Trolox/g extract. The DPPH method generated an IC₅₀ value of 226.09 mg/L. These varying values suggest that the chemical properties of the compounds in the extract react differently to each testing principle. Consequently, employing several antioxidant assays is essential for a more thorough assessment of the antioxidant capacity of Halimeda sp. seaweed extract.
One of the most commonly used culinary spices, black pepper (
Piper nigrum L.
) is also a rich source of bioactive phytochemicals. The present study aims to investigate the oleoresin extracted from black and white pepper using a Soxhlet extraction system and describe its physicochemical characterization, GC-MS anal...
Shaimaa A. M. Abdelmohsen, Arooj Anees, M. Javed et al.· Frontiers in Bioengineering...· 0 citations
The aim of the study is to evaluate the effect of solvent polarity and extraction technique on the recovery of antioxidants from rhubarb (Rheum rhabarbarum) by-products with single-step – maceration, and ultrasound assisted extraction, and two-step extraction methods - Soxhlet extraction with ethyl acetate, followed...
D. Konrade, I. Mieriņa· WSEAS Transactions on Enviro...· 0 citations
The plant Saussurea costus (Falc.) Lipsch. is recognised as an endangered plant species and is well recognized in the Indian system of traditional medicine. The goal of this study was to comparison phytochemical, antimicrobial, phenolic, flavonoid, and antioxidant analyses of root extracts of S. costus (SC) growing in...
S. Sofi· Natural Resources for Human...· 0 citations
This study investigated the antioxidant potential and bioactive compounds of a methanolic fraction
from the stem bark of Balanites aegyptiaca, a traditionally used medicinal plant from Nigeria's
Sudan Savanna ecological zone. The primary goal was to validate its traditional use and identify
the specific compounds respo...
M. A. Ibrahim· Research Journal of Pure Sci...· 0 citations
Rhodophyta is rich of bioactive compounds that exhibit significant potential as natural antioxidants. The potential underscores the need for further investigation of
Eucheuma
sp. as a promising alternative source of natural antioxidants to mitigate oxidative stress, which is closely associated with various degenera...
Hasna Aliifah Fitria, Yuneva Purnamasari, M. D. N. Meinita et al.· BIO Web of Conferences· 0 citations
. As a traditional medicinal plant that has been used for generations by the Baduy community to treat various ailments, Melastoma malabathricum L. ( harendong ) leaves represent a promising source of bioactive compounds, particularly phenolic constituents that contribute to antioxidant activity. This study aimed to det...
