Plant Secondary Metabolites in some Medicinal Plants of Mongolia Used for Enhancing Animal Health and Production

Tropicultura 01/2009; 27(3).
Source: DOAJ


The levels and activities of a number of plant secondary metabolites (PSMs) are known to increase in response to increase in stress. The Mongolian plants considered to possess medicinal properties may contain novel compounds since they are exposed to severe conditions; such plants could become good candidates for modern drug discovery programmes. Information on distribution, palatability to livestock and opinion of local people on their nutritive and medicinal values was compiled for 15 plant materials from 14 plant species considered important for medicinal purposes. These plants were evaluated for nutritive value and PSMs: tannins, saponins, lectins, alkaloids and cyanogens. High levels of tannins were found in roots of Bergenia crassifolia and in leaves of B. crassifolia, Vaccinium vitisidaea and Rheum undulatum. High lectin activity (haemagglutination) was present in B. crassifolia roots, and leaves of R. undulatum, Iris lacteal and Thymus gobicus contained weak lectin activity. Tanacetum vulgare, Serratula centauroids, Taraxacum officinale and Delphinum elatum leaves contained saponin activity (haemolysis). Alkaloids and cyanogens were not present in any of the samples. The paper discusses the known medicinal uses of these plants in light of the PSMs levels, and identifies plant samples for future applications in human and livestock health, welfare and safety.

Download full-text


Available from: Harinder P. S. Makkar, Mar 29, 2014
  • Source
    • "Fax: +662-253-3545. Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License phytopharmacology, phytomedicine and phytotherapy during the last decade (Makkar et al., 2009). Thus, more recently such folklore-based plants and their extracts are being evaluated for the chemical basis behind the treatment for adaptation to more conventional pure drug approaches or bioinformatic based modification, as well as for optimization of cultivar/cultivation conditions in agricultural rearing of the plants or biotechnological based mass production of the active component(s) (Chattopadhyay et al., 2004). "

    Preview · Article · Mar 2014 · Journal of medicinal plant research
  • Source
    • "Flavonoid has anti-allergic, anti-inflammatory, anti-oxidative, antimicrobial, anti-diarrhoea and anticancer activities [16]. Saponin has been revealed to possess antinematicidal, molluscicidal, insecticidal and antioxidant [17,18]; anti-cancer [19][20]; aphrodisiac [21,22]; anti-protozoal [23]; antibiotic, antifungal, antiviral, hepatoprotective, anti-inflammatory and anti-ulcer properties [24,25,26].Tannin has been reported to be potentially used as an antiviral, antibacterial and anti-parasitic [15,27] and anti-diarrhoeal agent [28,29]. Antibacterial and antineoplastic functions of terpenoids have been reported [30]. "

    Full-text · Article · Jan 2014
  • Source
    • "In 2006 the European Union banned use of antibiotics in livestock feeds due to risk to human health of antibiotic resistance being passed to human pathogens (OJEU, 2003). The EU Directive EC 1831/2003 provided an opportunity to exploit plants, plant extracts and plant secondary metabolites (i.e., essential oils, tannins, saponins, flavonoids) as natural alternatives to improve livestock productivity and reduce their impact on the environment by reducing environment pollutants such as CH 4 in fermentation gases, as well as P and N in manure (Makkar et al., 2009). Tannins are water-soluble polyphenolic compounds with high molecular weights, which have a potentially wide range of effects on rumen fermentation, such as reducing protein degradation in the rumen, decreasing CH 4 production, preventing bloat and increasing conjugated linoleic acid concentrations in ruminant derived foods. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Four rumen cannulated Polish Holstein-Friesian dairy cows were used in a crossover study to determine effects of source of tannins on rumen microbial fermentation. Cows were in their 4th month of lactation at the initiation of the study and were fed 20kg/d of DM of a 600:400 forage:concentrate diet. Treatments were either no supplemental tannin or supplemental Vaccinium vitis idaea (VVI). The dose of VVI was 140g of extract containing the equivalent of 2g of tannins/kg dietary DM. The VVI reduced rumen CH4 production (P=0.006), ammonia concentration (P<0.001) and protozoa microbial populations (P<0.001) (protozoa and methanogens), respectively by 8, 46, and 35 and 21%, while tending (P<0.001) to reduce the acetate to propionate ratio although the proportion of total VFA was not affected. The tannin sources used demonstrated antimicrobial activity by decreasing protozoal numbers thereby reducing rumen CH4 production and ammonia concentration. Results suggest that Vaccinium vitis idaea, as a source of tannins, has the potential to reduce rumen CH4 production and ammonia concentration.
    Full-text · Article · Sep 2012 · Animal Feed Science and Technology
Show more