138 results for “phenol”

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Research ArticleOpen accessIn the keywordsEffect of Water Bath Heating on Tannin Content and Quality Improvement Potential of Gambier (Uncaria gambir Roxb.)Daimon Syukri, Bastian Nova, Rina Yenrina et al.Gambir (Uncaria gambir Roxb.) is a source of natural phenolic compounds rich in catechins and tannins and has potential as a sustainable industrial raw material. During heating, phenolic compounds may undergo structural changes, including possible oxidation and polymerization, which can affect gambier quality beyond its catechin content. This study evaluated the effect of indirect heating duration using a water bath … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 23 Sep 2026 · 704 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsPhytochemical Content and Antioxidant Potential of Leaf Extract Berchermia discolour (Munie Tree) For Goats in The Limpopo Province, South AfricaMosima Molepo, Grace Manyelo, Busisiwe GunyaThe study aims to investigate the phytochemical content and antioxidant potential of leaf extract Berchermia discolour (Munie tree) for goats. Plant leaves were ground, and their powder was mixed with reagents and chemicals to attain the concentration level of phytochemicals and other bioactive compounds found in these plant's properties. Most of the phytoconstituents were present (shown by the change of … …OnLine Journal of Biological Sciences, Vol. 25, Issue 2 · 29 Mar 2025 · 5,357 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsPotential of Fig Leaf (Ficus carica L.) as Immunomodulatory Agent in vitro and in SilicoAnita Dewi, Fitri Rahmayanti, Haidar Bagir et al.Natural remedies are increasingly being used as alternatives to conventional medicine, and their popularity is growing. The fig plant (Ficus carica L.), which is known to contain secondary metabolites such as alkaloids, flavonoids, phenolics, terpenoids, steroids, and saponins, has the potential to act as an immunomodulator. The purpose of this study was to determine the content of flavonoid compounds based … …OnLine Journal of Biological Sciences, Vol. 23, Issue 1 · 19 Jan 2023 · 6,232 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAqueous Extracts of Bay Leaf (Laurus nobilis) and Rosemary (Rosmarinus officinalis) Inhibit Iron-Induced Lipid Peroxidation and Key-Enzymes Implicated in Alzheimer’s Disease in Rat Brain-in VitroAyodeji O. Falade, Goodness I. Omolaiye, Kayode E. Adewole et al.Neurological disorders remain a global health challenge, with Alzheimer’s Disease (AD) as the most famous cause of dementia in old people. Nevertheless, culinary spices and herbs have shown promising potentials in the management of neurological diseases. This study aimed at investigating the neuroprotective property of aqueous extracts of bay leaf (Laurus nobilis) and rosemary (Rosmarinus officinalis) by assessing the antioxidant … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 1 · 25 Jan 2022 · 7,955 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsCharacterization of Biochemical Compositions, Volatile Compounds and Sensory Profiles of Cabernet Sauvignon Wine in Successive Vintages (2008-2017)Yufeng Ding, Yanli Ma, Suping Li et al.Cabernet Sauvignon grape is an emblematic cultivar of Huailai region, China, allowing obtaining wines accounts for a large proportion of national consumption. This work aimed to determine the differences in basic parameters, organic acids, phenolics, volatile compounds and sensory profiles of Cabernet Sauvignon wines of successive vintages (2008-2017). The total organic acids content ranged from 7.03 to 42.33 g L-1, … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 3 · 17 Aug 2020 · 6,972 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsEffects of Oak Chip Treatments on Quality of Dry White Wines During AgingRongbin Li, Xiaofang Liang, Chunhua Song et al.The objective of the research was to evaluate the effect of different oak chip treatments on quality of Longyan dry white wine during aging. Phenolic substances, antioxidant activity and Cu2+ reduction force were measured. The results showed that wines treated with French oak chips (6 g/L) had significantly higher contents of total phenols (0.083 mg/mL) and flavonoids (0.063 mg/mL), also … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 26 Feb 2020 · 7,235 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsEffect of Climate Change on Sal (Shorea robusta Gaertn. f.) Forest of Kumaun HimalayaSanjay Kumar, Neha ChopraPhenophase of three common co-occuring woody plant species that varied in stature (tree Vs shrub) were examined in a sal forest of Kumaun Himalaya. The significance of phonological research lies in the fact that it constitutes a synthetic approach to evaluating plant response to the local environment. Monthly counts of leaves, flowers, fruits and shoot measurement were made on 150 … …American Journal of Environmental Sciences, Vol. 14, Issue 4 · 27 Mar 2018 · 8,609 accessesView PDF Cite

InvestigationOpen accessIn the keywordsFreeze Drying of Grape Raw Materials in Red WinemakingGennadiy Vyacheslavovich Semenov, Gennadiy Ivanovich Kasyanov, Ivan Ivanovich Petkov, Irina Stanislavovna KrasnovaThe aim of this research was the development of technology, which is based on the winemaking from freeze dried grape raw materials. Results of research on the drying of Cabernet Sauvignon grapes were shown. The regimes of preparation of grape raw materials and its subsequent freeze-drying are offered, providing the possibility of successful use in the dried state in the … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 3 Aug 2017 · 7,410 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAntioxidant and Antimutagenic Activities of Taif Grape (Vitis vinifera) CultivarsAbdelmegid Ibrahim Fahmi, Mohamed Ahmed Nagaty, Ahmed Mohamed El-ShehawiExtract of grape Vitis vinifera has been reported to exhibit antioxidant and antimutagenic activities and the phenolic compounds play a vital role in determining these activities. Therefore; the objective of the present study was to evaluate the antioxidant and anti-mutagenic activities as well as the phenolic composition of different grape cultivar extracts collected from Taif region. The grape cultivars namely; … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 2 · 20 Jun 2013 · 8,010 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAntioxidant Activity of Brown Algae Sargassum species Extract from the Coastline of Java IslandSiti A. Budhiyanti, Sri Raharjo, Djagal W. Marseno, Iwan Y.B. LelanaThe coastlines with rocky shores at Java Island Indonesia, Gunung Kidul (Yogyakarta) and Jepara (Central Java), have abundant resources of brown algae Sargassum sp. Little effort, however, has been made to explore the antioxidant potential of the algae harvested from these area. Tropical brown algae have proven to produce a very effective antioxidant defence system due to the strong UV … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 30 Aug 2012 · 9,901 accessesView PDF Cite