The endophytic fungi of Salvia miltiorrhiza Bge.f. alba are a potential source of natural antioxidants

Plant species are fundamental source of nectar in beekeeping since bees access nectar and pollen from flowers. Consequently, bee products are strongly linked to the bee foraging flora source, and, depending on this, they acquire defined features, including their health and medicinal properties. Medicinal plants contribute greatly to increase the beneficial properties of bee products, such as honey, pollen, royal jelly, and propolis. Bee products represent a potential source of natural antioxidants that can counteract the effects of oxidative stress underlying the pathogenesis of many diseases. The antioxidant properties of bee products have been widely studied and there is an abundance of information available in the literature. Notwithstanding, the uniqueness of the presented perspective is to provide an updated overview of the antioxidant properties of bee products derived from medicinal plants as beekeeping sources. This topic is divided and discussed in the text in different sections as follows: (i) beekeeping and the impacts of environmental factors; (ii) an overview of the role of medicinal plants for bee products; (iii) definition and categorization of the main medicinal bee plants and related bee products; (iv) the study approach of the antioxidant properties; (v) the conventional and innovative assays used for the measurement of the antioxidant activity; and (vi) the antioxidant properties of bee products from medicinal plants.

Download Full-text

Sea buckthorn (Hippophae rhamnoides L.) as a potential source of nutraceutics and its therapeutic possibilities - a review

Acta Veterinaria Brno ◽

10.2754/avb201584030257 ◽

2015 ◽

Vol 84 (3) ◽

pp. 257-268 ◽

Cited By ~ 22

Author(s):

Jana Krejcarová ◽

Eva Straková ◽

Pavel Suchý ◽

Ivan Herzig ◽

Kateřina Karásková

Keyword(s):

Natural Antioxidants ◽

Sea Buckthorn ◽

Hippophae Rhamnoides ◽

Animal Nutrition ◽

Animal Products ◽

Positive Effects ◽

Hippophaë Rhamnoides ◽

Potential Source ◽

Whole Plant ◽

Active Substances

Sea buckthorn (Hippophae rhamnoides L.) is in the focus of interest mainly for its positive effects on health of both human and animal organisms. The whole plant of sea buckthorn and especially its berries are a source of a large number of different bioactive compounds. The greatest attention has been drawn to its high content of vitamins, minerals, natural antioxidants, n-3 and n-6 fatty acids, and proteins. Sea buckthorn is valued for its antioxidant, cardioprotective, antiatherogenic, antidiabetic, hepatoprotective, anti-carcinogenic, immunomodulatory, antiviral, antibacterial, anti-inflammatory and vasorelaxant effects. Due to these and other positive effects, the plant is included in both human and animal nutrition, in the latter case to increase the biological value of animal products. This review summarises the botanical characteristics of sea buckthorn, lists the bio-active substances contained in individual parts of the plant, their effects in the prevention of a number of different diseases and their possible utilisation in human and animal nutrition.

Download Full-text

PHYSICOCHEMICAL AND PHYTOCHEMICAL ANALYSIS OF Mangifera indica linn.( AAMRA KERNEL )

November 2020 - International Ayurvedic Medical Journal ◽

10.46607/iamj05p4052020 ◽

2020 ◽

Vol p4 (05) ◽

pp. 2394-2400

Author(s):

Pooja Dogra ◽

A. Rama Murthy ◽

Sumit Nathani

Keyword(s):

Mangifera Indica ◽

Natural Antioxidants ◽

Water Soluble ◽

Phytochemical Analysis ◽

Tropical Regions ◽

Potential Source ◽

Mango Kernel ◽

Phytochemical Constituents ◽

Phytochemical Studies

Introduction: Mangifera Indica Linn., Anacardiaceae family, is a large evergreen tree of tropical and sub-tropical regions of the world. Mango kernel can be used as a potential source for functional food ingredi-ents, animal feeds, antimicrobial compounds and cosmetic due to its high quality of fat and protein as well as high levels of natural antioxidants. Aim: The aim of the present study was to evaluate the physicochemical and phytochemical analysis of Mangifera Indica Linn. Methods Aamra Kernel were collected, cleaned, dried and powdered. Aqueous and alcoholic extracts of Aamra kernel were analyzed for physicochemical and phytochemical constituents. The study was conduct-ed as per the guidelines of Ayurvedic pharmacopeia of India. Results: The result of physicochemical parameters (moisture content: 10.2%, total ash: 2.12%, acid insolu-ble ash: 0.3%, water soluble ash: 1.42%, aqueous extractive value: 14.67% and alcoholic extractive value 12.98%). The phytochemical studies revealed the presence of active constituents, carbohydrates, amino acid, steroids, proteins, saponins, alkaloids, glycosides, tannins in aqueous and alcoholic extracts. Conclusion: All studies standardization parameters like physicochemical and phytochemical screening pa-rameters provide the knowledge in the identification, authentication of kernel of Mangifera Indica Linn. Hence it is concluded that this drug supposed to be great beneficial and boon for our society.

Download Full-text

Aqueous Extract of Wild Cyclamen Tubers (Cyclamen Purpurascens L.) - A Potential Source of Natural Antioxidants and Antimicrobial Agents

Quality of Life (Banja Luka) - APEIRON ◽

10.7251/qol1801013s ◽

2018 ◽

Vol 16 (1-2) ◽

Author(s):

Ljiljana P. Stanojević ◽

Milorad D. Cakić ◽

Jelena S. Stanojević ◽

Dragan J. Cvetković ◽

Bojana R. Danilović

Keyword(s):

Staphylococcus Aureus ◽

Antimicrobial Activity ◽

Aqueous Extract ◽

Antimicrobial Agents ◽

Natural Antioxidants ◽

Diffusion Method ◽

Total Phenolic ◽

Dry Extract ◽

Potential Source ◽

Total Flavonoids Content

Wild cyclamen tubers (Cyclamen purpurascens Mill.) (mountain Kukavica, Southeast Serbia) were used as material for extraction in this study. Aqueous extract was obtained by reflux extraction on boiling temperature with hydromodulus 1:20 m/v during 180 minutes. The total phenolic content was determined spectrophotometrically by the method of Folin-Ciocalteu, and the total flavonoids content by method with AlCl3. The antioxidant activity of extract was investigated spectrophotometrically by DPPH and ABTS test. Disc-diffusion method was used for antimicrobial activity investigation on the following pathogenic microorganisms: Staphylococcus aureus, Bacillus cereus, Enterococcus faecalis, Pseudomonas aeruginosa and Klebsiella pneumoniae. The content of total phenols was 8.27 mg GAE/g dry extract while the total flavonoid content was 11.51 mg RE/g dry extract. The extract concentrations required to neutralize 50% of the initial concentration of DPPH radicals (EC50) after 20 minutes incubation and immediately after adding DPPH radical solution were 0.413 and 2.0 mg/ml, respectively, while concentrations of extract required to neutralize 50% of the initial ABTS radicals concentration is 0.743 mg/ml. The extract showed the highest antimicrobial activity on bacteria Staphylococcus aureus. The presented results indicate that cyclamen tubers extract is a potential source of natural antioxidants and antimicrobial agents.

Download Full-text

Endophytic fungi as a potential source of cytotoxic drugs: a fungal solution to cancer

Volatiles and Metabolites of Microbes ◽

10.1016/b978-0-12-824523-1.00015-8 ◽

2021 ◽

pp. 305-323

Author(s):

H.C. Yashavantha Rao ◽

D. Sruthi ◽

Subban Kamalraj ◽

Ramalingam Parthasarathy ◽

Chelliah Jayabaskaran

Keyword(s):

Endophytic Fungi ◽

Cytotoxic Drugs ◽

Potential Source

Download Full-text

Endophytic Fungi: A Potential Source of Bioactive Compounds for Commercial and Therapeutic Applications

Endophytes ◽

10.1007/978-981-15-9371-0_12 ◽

2021 ◽

pp. 247-272

Author(s):

K. Preethi ◽

V. Manon Mani ◽

N. Lavanya

Keyword(s):

Bioactive Compounds ◽

Endophytic Fungi ◽

Therapeutic Applications ◽

Potential Source

Download Full-text

Antioxidant metabolites from riparian fungal endophytes improve the tolerance of rice seedlings to flooding

10.21203/rs.3.rs-239567/v1 ◽

2021 ◽

Author(s):

Yanhong Xue ◽

Chengxiong Liu ◽

Xiaoxuan Bai ◽

Fan Cheng ◽

Jianfeng Chen ◽

...

Keyword(s):

Nadph Oxidase ◽

Endophytic Fungi ◽

Fungal Endophytes ◽

Morphological Characteristics ◽

Natural Antioxidants ◽

Flooding Tolerance ◽

Separation And Purification ◽

Rice Seedlings ◽

Rdna Its ◽

Antioxidant Metabolites

Abstract Endophytic fungi have the potential to enhance plant resistance to various stresses and promote the ecological adaptation of the hosts. To evaluate the effects of the riparian endophytes on rice seedlings to flooding tolerance, here we screened out two endophytes from the plant Myricaria laxiflora growing in the Yangtze River zone. Through morphological characteristics and rDNA ITS (internal transcriber region) sequence, the two strains were respectively identified as Aspergillus fumigatus and Chaetomium globosum. Metabolites derived from both fungi were capable of increasing tolerance to flooding. Systematic separation and purification coupled to bioassays revealed that two natural antioxidants, Z-N-4-hydroxystyryl formamide (NFA) and chaetoglobosin A (CheA), were effective for alleviating flooding stress. Both NFA and CheA inhibited the production of factors such as malondialdehyde, superoxide dismutase, ethanol dehydrogenase, and NADPH oxidase that are associated with oxidative stress induced by flooding. Gene expression analyses of NADPH oxidase families indicated that OsRbohB could be involved in conferring flooding tolerance mediated by the two natural antioxidants. These findings contribute to understanding the role of the natural antioxidants in riparian endophytic fungi, and providing a basis for improvement of flooding tolerance of rice and other crop plants through the antioxidants of the fungal endophytes.

Download Full-text