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259 articles for “activity concentration”
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Research ArticleOpen accessIn the abstractAnalysis of Constituents and Bacteriostatic Activity of Essential Oil Extracted from Sea Buckthorn Seeds by Different MethodsHepeng Zhao, Fuyin Zhao, Qian Xiao et al.Sea buckthorn is a homologous plant listed in Chinese pharmacopoeia. The Essential Oils (EOs) of Sea Buckthorn Seeds (SBTS) are widely used in medicine and health products in China, Russia and other countries. The extraction methods of SBTS with advantages of low cost, high yield and high activity have attracted considerable attention. In this study, the extraction rate, chemical compositions … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 2 · 4 Jun 2021 · 7,483 accessesView PDFCite
Research ArticleOpen accessIn the abstractChemical Constituents, Antibacterial and Coagulation Activity of the Essential Oil from the Stem of Artemisia argyle H. Lév.Jiale Shan, Hongli ZhouArtemisia argyle H. Lév. (A. argyle) is a plant of historical importance known as the "mother of herbs" in the Middle Ages. As the leaves of A. argyle have been studied more, but the stems has not been reported. This paper explores the chemical constituents, antibacterial and coagulation activities of the Essential Oil from the Stems of A. argyle (EOSAA) … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 2 · 31 May 2021 · 6,433 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy of Chemical Composition of Extract from Beta Vulgaris Seeds and its Cytotoxic ActivityAiman Konkabayeva, Margarita Ishmuratova, Gulmira Tykezhanova et al.Nowadays, a variety of plants is being investigated with the aim of developing new medicines with improved properties and expanding the range of efficient and safe preparations. Modern studies of representatives of the family Amaranthaceae (Beta vulgaris) have revealed medicinal properties in plants that were used previously only as food. Many medicinal properties are due to the presence of betalains … …OnLine Journal of Biological Sciences, Vol. 21, Issue 2 · 27 May 2021 · 6,225 accessesView PDFCite
Research ArticleOpen accessIn the abstractSafe Ulvan Silver Nanoparticles Composite Films for Active Food PackagingHadear Hanie AminProtecting food from the corruption caused by different microbes is a big problem, as we need safe methods for food packaging. In this study, Ulvan (U), edible sulfated polysaccharide extracted from Ulva lactuca, was mediated for the first time non-toxic biosynthesized silver nanoparticles (Ag-NPs) to produce new and safe bio-nanocomposite films called (U/Ag-NPs) films for active food packaging. Ulvan was … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 1 · 28 Jan 2021 · 7,748 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntioxidant and Antibacterial Properties of Essential Oils from Citrus reticulata cv. Shatangju Peel for the Preservation of Chilled PorkYao Dong, Xintong Zou, Hongli Zhou et al.Citrus reticulata cv. Shatangju peel essential oil (CrspEo), with three major components D-limonene (88.15%), γ-terpinene (4.59%) and β-myrcene (2.62%), possessed antioxidant activities with DPPH and ABTS+ radical scavenging with the IC50 (concentration of CrspEo scavenging 50% of radical) of 9.87±0.12% and 0.48±0.02%, respectively. Meanwhile, CrspEo showed antimicrobial activity in suppressing the growth of Bacillus pumilus, Bacillus subtilis, Candida albicans, Escherichia … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 3 · 31 Jul 2024 · 4,758 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimization of Chelating Process of Polysaccharides of Lyophyllum decastes with Zinc and Its Antioxidant ActivityBing Xu, Yi Dai, Jing Hong, Yiyong ChenIn this study, polysaccharides of Lyophyllum decastes (LDS) were used as raw material. The chelating rate was set as the index, the effect of chelating time, mass ratio and initial mass concentration on chelating rate was investigated. Response surface method was used to optimize the preparation technology of LDS and Zinc (Ⅱ) chelate (LDS-Zn) based on single factor experiments. LDS-Zn … …Current Research in Bioinformatics, Vol. 9, Issue 1 · 26 Aug 2020 · 11,769 accessesView PDFCite
Research ArticleOpen accessIn the abstractTotal Phenolic, Resveratrol Content, Antioxidant and Antimicrobial Activity in Five Cultivars of Peanut SproutsQing Liu, Shaoqi Li, Yao Zhang et al.Peanut sprout is one of the potential natural sources of bioactive substances. In this study, five different peanut cultivars were conducted to germination, the change in total phenolic compounds, resveratrol content, antioxidant and antimicrobial activity were investigated. The sprouts of five peanut cultivars (Fuhua, Silihong, Dabaisha, Xiaobaisha and Huayu) were extracted using 75% ethanol for 3 h and the crude … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 12 Feb 2020 · 8,555 accessesView PDFCite
Research ArticleOpen accessIn the abstractSafety Assessment of Indigenous Probiotic Strain Lactobacillus plantarum Dad-13 Isolated from Dadih Using Sprague Dawley Rats as a ModelEndang S Rahayu, Ilzamha H Rusdan, Armita Athennia et al.Lactobacillus plantarum Dad-13 is a probiotic candidate from dadih, a traditional fermented buffalo milk from West Sumatera, Indonesia. This study aimed to evaluate safety aspects of L. plantarum Dad-13 in high dose consumption on Sprague Dawley rats. Two treatment groups were fed with 1011 CFU/mL/day of L. plantarum Dad-13 for 14 and 28 days respectively. Two placebo groups were fed … …American Journal of Pharmacology and Toxicology, Vol. 14, Issue 1 · 12 Nov 2019 · 10,142 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimization of Hydrolysis Conditions for Obtaining Antithrombotic Peptides from Tenebrio Molitor LarvaeFangyuan Chen, Han Jiang, Yini Gan et al.Tenebrio molitor larvae was hydrolyzed by pepsin and trypsin for preparing high antithrombotic activity hydrolysate. The significant variables were selected according to the Plackett-Burman design and further optimized by the Response Surface Methodology (RSM). Four factors, including substrate concentration, pepsin digestion time, pepsin amount and trypsin amount, respectively, influenced significantly on the hydrolysis effectiveness. The best hydrolysis conditions obtained using … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 2 · 20 May 2019 · 8,725 accessesView PDFCite
Research ArticleOpen accessIn the abstractModulation of Aging in Yeast Saccharomyces cerevisiae by Roselle Petal Extract (Hibiscus sabdariffa L.)Sarima, Rika Indri Astuti, Anja MeryandiniCellular aging drives diseases. Free radicals are called the main cause of cellular aging. Antioxidants can protect the body from free radical attack by reducing its negative effects. An antioxidant source can be obtained from plants, such as roselle (Hibiscus sabdariffa. L). This research was conducted to analyze the ability of roselle petals extract to increase the life span of … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 1 · 6 Apr 2019 · 9,651 accessesView PDFCite