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  • Open Access

    ARTICLE

    Bioactivity of Nanohybrid: Comprising of Metallosalen Incorporated into Lacunary Polyoxometalate and Encapsulated with Chitosan Biopolymer

    SHIVA ARUNa, VINAY KUMAR SINGHa,#, PRABHA BHARTIYAb, PRADIP KUMAR DUTTAc,*

    Journal of Polymer Materials, Vol.40, No.1-2, pp. 19-31, 2023, DOI:10.32381/JPM.2023.40.1-2.2

    Abstract Biocompatible polymer chitosan has note-worthy applications in biomedical science. Nanohybrids synthesized by using chitosan as an encapsulating unit for polyoxometalates (POMs) and study of its biomedical applications is a fast-emerging field. In this research work, a lacunary polyoxometalate (α-K8SiW11O39) has been synthesized and then alkylsilane has been inserted into its lacunary position. It has been then reacted with 2-hydroxy-1-naphtaldehyde followed by copper metalation and finally encapsulated into chitosan by using the ionotropic gelation technique, in which the chitosan and the POM served as cation and anion, respectively. The bands in UV-Vis spectra at characteristic wavelength indicate that the organosilane is… More >

  • Open Access

    ARTICLE

    Comprehensive Assessment of the Safety of Eucommia ulmoides Leaf Extract for Consumption as a Traditional Chinese Health Food

    Huiling Fu1, Mijun Peng2, Qiuwen Tang2, Haojun Liang2, Yanli Liang2, Jiali Fang2,*, Xuesong Wang2,*

    Journal of Renewable Materials, Vol.11, No.7, pp. 3091-3114, 2023, DOI:10.32604/jrm.2023.026689

    Abstract To ensure the export quality of Eucommia ulmoides leaf extract (ELE) and facilitate E. ulmoides leaf inclusion in the directory of traditional Chinese health foods, an overall safety assessment of ELE was performed, including genotoxicity and long-term toxicity, according to the national food safety standards of China. No variations in the reverse mutation number of the nominal bacterial strains were observed under ELE treatment in comparison with the solvent control. Additionally, the micronucleus rates of in vivo mammalian erythrocytes and in vitro mammalian cells under ELE treatment were equivalent to or significantly lower than those of the solvent control. The… More > Graphic Abstract

    Comprehensive Assessment of the Safety of <i>Eucommia ulmoides</i> Leaf Extract for Consumption as a Traditional Chinese Health Food

  • Open Access

    REVIEW

    Research Progress on Structure and Bioactivity of Longan Polysaccharide

    Xiaolong Ji1,#, Shuli Zhang1,#, Xueyuan Jin2, Xin Yuan1, Siqi Zhang1, Xudan Guo3,*, Fengcheng Shi4,*, Yanqi Liu1

    Journal of Renewable Materials, Vol.11, No.4, pp. 1631-1642, 2023, DOI:10.32604/jrm.2023.025844

    Abstract Longan originates from southern China and has high nutritional and health value. Recent phytochemistry and pharmacology studies have shown that polysaccharides are a main bioactive component of longan. Longan polysaccharides possess antioxidant, anti-aging, anti-tumor, immunomodulatory, and other bioactivities. Hot-water extraction, ethanol precipitation, and ultrasonic extraction are generally used to extract water-soluble longan polysaccharides. However, the relationship between the structure and bioactivity of longan polysaccharides remains unclear, requiring further investigation. The aim of this review is to evaluate the current literature focusing on the extraction, purification, structural characterization, and biological activity of longan polysaccharides. We believe that this review would provide… More >

  • Open Access

    ARTICLE

    In silico assessment of human health risks caused by cyanotoxins from cyanobacteria

    JIA-FONG HONG1, BAGHDAD OUDDANE2, JIANG-SHIOU HWANG3,4,5, HANS-UWE DAHMS1,6,7,*

    BIOCELL, Vol.45, No.1, pp. 65-77, 2021, DOI:10.32604/biocell.2021.014154

    Abstract Harmful algal blooms (HABs) that are formed by cyanobacteria have become a serious issue worldwide in recent years. Cyanobacteria can release a type of secondary metabolites called cyanotoxins into aquatic systems which may indirectly or directly provide health risks to the environment and humans. Cyanotoxins provide some of the most powerful natural poisons including potent neurotoxins, hepatotoxins, cytotoxins, and endotoxins that may result in environmental health risks, and long-term morbidity and mortality to animals and humans. In this research, we used the chemcomputational tool Molinspiration for molecular property predictions, Pred-hERG 4.2 web software for cardiac toxicity prediction, and Pred-Skin 2.0… More >

  • Open Access

    REVIEW

    Biomolecules of Interest Present in the Main Industrial Wood Species Used in Indonesia-A Review

    Resa Martha1,2, Mahdi Mubarok1,2, Wayan Darmawan2, Wasrin Syafii2, Stéphane Dumarcay1, Christine Gérardin Charbonnier1, Philippe Gérardin1,*

    Journal of Renewable Materials, Vol.9, No.3, pp. 399-449, 2021, DOI:10.32604/jrm.2021.014286

    Abstract As a tropical archipelagic country, Indonesia’s forests possess high biodiversity, including its wide variety of wood species. Valorisation of biomolecules released from woody plant extracts has been gaining attractive interests since in the middle of 20th century. This paper focuses on a literature review of the potential valorisation of biomolecules released from twenty wood species exploited in Indonesia. It has revealed that depending on the natural origin of the wood species studied and harmonized with the ethnobotanical and ethnomedicinal knowledge, the extractives derived from the woody plants have given valuable heritages in the fields of medicines and pharmacology. The families… More >

  • Open Access

    REVIEW

    Biological and Functional Properties of Wedelolactone in Human Chronic Diseases

    Ramachandran Vinyagam1, Pradeep Kumar2, Kyung Eun Lee1,3, Baojun Xu4, Muhammad Nurul Matin5,*, Sang Gu Kang1,3,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 1-15, 2021, DOI:10.32604/phyton.2020.013388

    Abstract Medicinal herbs are well known and studied over the past millennia in most of the developing countries as a rational means of treatment against various diseases and disorders. Wedelolactone (WDL), a major bioactive compound in Eclipta prostrata L (Eclipta alba L), has been reported with potential benefits in human health against chronic diseases. However, a comprehensive study on WDL pharmacological benefits in various ailments, to the best of our knowledge, is not yet reported. Thereof, the present review provides the recent therapeutic applications in reference to biological and functional activities against major human chronic diseases, including cardiovascular, cancer, diabetes mellitus,… More >

  • Open Access

    ARTICLE

    Phytochemical and pharmacological studies on Mikania micrantha H.B.K. (Asteraceae)

    Pérez-Amador1 MC, V Muñoz Ocotero1, R Ibarra Balcazar1, F García Jiménez2

    Phyton-International Journal of Experimental Botany, Vol.79, pp. 77-80, 2010, DOI:10.32604/phyton.2010.79.077

    Abstract Asteraceae is one of the largest families of Angiospermae, and contains the Mikania genus. Several species of this family contain polyacetylenic and thiophenic compounds which are used as taxonomic markers. Also, their phototoxic activity acts as plant defense mechanism. In this paper we report the absence of these compounds in Mikania micrantha. We also describe the composition of the volatile oil from the seeds and inflorescence in the species. Linalool and α-pinene were the main components of this M. micrantha’s essential oil. This study tested the ability of extracts of Mikania micrantha to inhibit the mouse ear inflammation in response… More >

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