Search Results for : secondary metabolites
Impact of harvesting time and geographical region on total phenolics, flavonoids and antioxidant activity of olive (Olea ferruginea Royle) leaves, district Zhob
Study area of district Zhob is well known for its naturally occurring population of Olea ferruginea .There was emerging need to unveil status of pharmaceutically active compounds in leaves of this locally used abundant species. Present study was conducted to evaluate influence of some geological parameters and harvesting time on concentration of few secondary metabolites […]
Antibacterial efficacy of essential oil from leaf of Uvariodendron molundense (Annonaceae), medicinal plant of Gabon
Increasing bacterial resistance to antibiotics is a serious global problem that has led research to identify new biomolecules with strong antibacterial activity. In nature, essential oils (Eos) contain a wide variety of secondary metabolites that can inhibit or slow down the growth of bacteria in the plant kingdom. The objective of this study is to […]
Effects of the thermic treatment of the retam honey in the El- Oued region on some physical and chemical properties
The purpose of this study is to study the effect of heat treatment on the physiochemical characteristics of the honey sample of the plant retam taken from Oued Souf region for the season 2018 , In this we have studied the properties of ( acidity, Colour, hydroxy methyl forural (HMF), total phenols and flavonoids, anti-oxidant […]
Phytochemical screening and proximate composition of the sea grasses Enhalus acoroides and Thalassia hemprichii in the Coastal Waters of Carmen, Agusan Del Norte, Philippines
Knowledge of the chemical composition of seagrass is important both for the assessment of the nutritional value of marine invertebrate or vertebrate herbivores and for the evaluation of potential sources of protein, carbohydrates, and lipids for commercial use or for possible human consumption. While phytochemical screening provides basic information about the medicinal importance of the […]
Detection of mycotoxins through nanobiosensors based on nanostructured materials: A review
Mycotoxins are secondary metabolites produced by fungi which can affect a variety of feedstuffs.These compounds elicit toxicological effects which represent risk for both humans and animals. Several sensitive methods for detection of mycotoxins based on chromatographic or immunochemical techniques are currently commercially available. The toxicity of mycotoxins occurs at very low concentrations, consequently there is […]
The brine shrimp toxicity of the philippine marine sponges Axinyssa sp., Plocamionida sp., Forcepia sp., Pachymatisma sp., and Placospongia sp.
Marine sponges have been considered as a gold mine with respect to the diversity of their secondary metabolites and biological activities. Five marine sponges were collected off Agusan del Norte, Philippines and taxonomically identified as Axinyssa sp., Plocamionida sp., Forcepia sp., Pachymatisma sp., and Placospongia sp. Nonpolar and polar extracts of the marine sponges were […]
Evaluation of phenolic content of common bean (Phaseolus vulgaris L.) in association to bean fly (Ophiomyia spp.) infestation
Common bean is the most important pulse crop in Kenya, though small scale farmers have limited access to pest resistant seeds. This has therefore made common bean yields remain below 1000kgha-1, while the potential is 2000kgha-1. However phenolics are secondary metabolites present in plants and this could be an attribute contributing to common beans resistance […]
Evaluation of potential cytotoxicity of the extracts from soft corals collected from the Philippine Sea of Mindanao: Sarcophyton glaucum, Lobophytum pauciflorum, Sinularia flexibilis and Lobophytum crassum
Soft corals have been shown to possess a rich variety of marine secondary metabolites and are considered an extremely diverse group of marine organisms. This study explored the potential cytotoxicity of soft corals collected from the Philippine Sea of Mindanao namely Sarcophyton glaucum (Sg), Lobophytum pauciflorum (Lp), Sinularia flexibilis (Sf) and Lobophytum crassum (Lc). Polar […]
Growth, phytochemical profile, and antioxidant activity of cultivated tabat barito (Ficus deltoidea Jack) under drought stress
Tabat barito (Ficus deltoidea Jack.) is one of the most important medicinal plants in Kalimantan. The growth, phytochemical profile, and antioxidant activity were assessed in Ficus deltoidea growing under four different water field capacity (FC) condition, namely: W1 (40% FC), W2 (60% FC), W3 (80% FC), and W4 (100% FC-control), and investigated for 9 months. […]
Yields, zoochemical profiles, and antioxidant activities of extracts from freshwater clam (Corbicula fluminea) using different solvents
Freshwater clam is among the many aquatic organisms that possessed many medical and biological effects. Several factors may affect the growth of phytoplankton, and so will likewise affect the secondary metabolites present. The study aimed to determine the crude extract yields, zoochemical profiles, and the antioxidant activities of the freshwater clam (Corbicula fluminea) using ethanol, […]