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171 articles for “Antioxidant activity”
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Research ArticleOpen accessPhrase in the titleUltrasonic Microwave Assisted Extraction, Chemical Characterization and Antioxidant Activity of Polysaccharides from Fig LeavesBaikangzhe Zheng, Yang Miao, Yi Zhou et al.This study employed ultrasonic-microwave-assisted extraction (UMAE) to isolate water-soluble polysaccharides from fig (Ficus carica L.) leaves (FLPs). Polysaccharide yield was used as the primary index to evaluate extraction efficiency. The effects of material-liquid ratio, microwave power, extraction temperature, and extraction time on polysaccharide yield were systematically investigated through single-factor experiments, followed by response surface methodology optimization. Structural characterization and antioxidant … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 4 · 3 Mar 2026 · 1,671 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleOptimization of Preparation Procedures of Phlorizin-Zn (Ⅱ) Complex and Its Antioxidant Activity Study in vitroYuqing Zhang, Yaping Li, Guorui Yang et al.Flavonoid metal complexes possess more effective antioxidant properties than flavonoids. However, the preparation of the phlorizin-Zn (Ⅱ) complex and its antioxidant activity has not been reported. In this research, the preparation procedures of the phlorizin-Zn (Ⅱ) complex were enhanced using by single factor test and Response Surface Methodology (RSM). The optimal preparation procedures of the phlorizin-Zn (II) complex were as … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 4 · 3 Apr 2024 · 4,758 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePreparation of Rose Vinegar Rich in Gamma-Linolenic Acid and Analysis of its Nutritional Composition and Antioxidant ActivityYao Zhang, Qing Liu et al.Despite the rapid development of various types of fruit vinegar or nutrient-fortified vinegar, the weakened functions or high cost is still the main limiting factor for healthy vinegar. In the present study, a new type of rose vinegar was obtained from raw grain supplemented with natural extract of roses through the cooperative fermentation of multiple microorganisms by adding Mucor circinelloides … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 3 · 8 Aug 2023 · 6,388 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleTetrastigma hemsleyanum Diels et Gilg Roots from Different Origins: Pharmacognostical Identification, Content Determination of Functional Composition and in vitro Antioxidant ActivityGuang Mei Li, Jian Ge, Yongli Zheng et al.Tetrastigma hemsleyanum Diels et Gilg (T. hemsleyanum) is a unique and rare Chinese medicinal herb mainly distributed in the south of the Yangtze River in China. In the present study, T. hemsleyanum roots from seven different sites in the south of the Yangtze River (Guangxi [Baise, Guilin, and Hechi], Hunan [Fenghuang], and Zhejiang [Hangzhou, Taizhou, and Wenzhou] provinces) were collected, … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 1 · 23 Feb 2023 · 5,722 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleOptimization of Purification Technology and Antioxidant Activity of Total Flavonoids from Sea Buckthorn LeavesJiale Shan, Yang Liu, Pu Zhao et al.China is rich in sea buckthorn (Hippophae rhamnoides L.)resources and a large amount of sea buckthorn fruit is used to extract oil andjuice every year. However, Sea Buckthorn Leaves (SBL), which are full offlavonoids, are discarded as waste. To make full use of resources and turn waste into valuables, theoptimal purification process of flavonoids from SBL was studied and theantioxidant … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 3 · 27 Aug 2022 · 6,073 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePreparation of Low-Sugar Herbal Buccal Tablet and its Antioxidant ActivityYuqing Wang, Mingjie Sun, Rui Xu et al.In this study, in order to prepare a low-sugar Herbal Buccal Tablet (HBT), Response Surface Methodology (RSM) was used to optimize the formula of HBT. HBT was prepared by wet granulation and tableting process on the basis of formula optimization. The in vitro antioxidant activity, glycemic index and particle microstructure of HBT were evaluated. The results showed that the optimal … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 1 · 8 Mar 2022 · 6,357 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleEffect of Ultra-High Pressure Technology on Isomerization and Antioxidant Activity of Lycopene in Solanum LycopersicumSiqun Jing, Zainixi Lasheng, Saisai Wang, Hui ShiTo evaluate the influence of the Ultra-High Pressure processing (UHP) on the isomerization and antioxidant activity of lycopene in tomatoes (Solanum lycopersicum), High Performance Liquid Chromatography (HPLC) and Ultraviolet-Visible Spectroscopy (UV-Vis) were used to separate and identify the isomer of lycopene. The scavenging activities against DPPH∙and∙OH present samples with and without UHP treatment were tested with ascorbic acid as positive … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 2 · 21 Jun 2020 · 7,225 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleAntioxidant Activity, Anti-Inflammatory and Analgesic Effects of Caralluma europaea (Eddaghmouss) in MiceAaziz Kebbou, Mehdi Ait Laaradia, Sara Oufquir et al.The aim of the current study is to evaluate the anti-inflammatory, antioxidant and analgesic properties of ethanolic (100 and 200 mg/kg, p.o.) and ethyl acetate extracts (100 and 200 mg/kg, p.o.) of Caralluma europaea. Formalin-induced paw licking test, Acetic Acid induced Writhing Test and Hot-PlateTest were used to assess the analgesic activity. Xylene-induced ear edema test was used to evaluate … …OnLine Journal of Biological Sciences, Vol. 19, Issue 4 · 24 Dec 2019 · 7,598 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleAntioxidant 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 PDFCite
Research ArticleOpen accessPhrase in the titleAntioxidant Activity of Leaves of Calophyllum rubiginosumMuhammad Taher, Nissad Attoumani, Deny Susanti et al.Problem statement: Calophyllum species have been used in traditional medicine for their therapeutic values for many years. This use was explained by several previous studies where antimicrobial, antifungal, anti-HIV and anti-cancer and antioxidant compounds were isolated from several Calophyllum species. Approach: The leaves were extracted with n-hexane (hexane), dichloromethane (DCM) and methanol using soxhlet apparatus. Total phenolic contents of each … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 7,623 accessesView PDFCite