Definition, composition and importance of microflora Saunders Comprehensive Veterinary Dictionary (2007) cited by the online medical dictionary (2013) defines living microorganisms as that small that they can be seen only with a microscope and that maintain a more or less constant presence in a particular area that includes bacteria, viruses, protozoa and fungi. Soil microflora more specifically, consists the following microorganisms (Bhatt et al. 2013): 1. Bacteria a) Heterotrophic bacteria, eg. symbiotic and non - symbiotic N2 fixers, ammonifier, cellulose decomposers, denitrifiers b) Autrotrophic bacteria, eg. nitrosomonas, nitrobacter, sulphur oxidizers, etc; 2. Fungus; 3. Viruses 4. Actinomycetes and stretomyces; 5. Algae eg. BGA, yellow gree algae, golden brown algae. The soil microflora largely depends on the type of soil, temperature, moisture, plant growth,
14 ref to coppicing / pollarding; 15 (deciduous trees) regrow from base/ idea of rotation/ cycle; 16 standards / large trees not coppiced, as encourages biodiversity; 7 [7] 16. population; habitat; community; ecosystem; (first) trophic; R tropic producers/(photo) autotrophs/autotrophic; (primary) consumers/heterotrophs/heterotrophic/herbivore; R carnivore/other qualified consumer 7 [7] 17. 1 mark per correct row Look for both ticks and crosses. If a table consists of ticks ONLY or crosses ONLY, then assume that the blank spaces are the other symbol.
Effect of Intrinsic and Extrinsic Streptococcus thermophilus and the already Meat Characteristics on Meat mentioned Clostridium perfringens; and the Microbial Populations strict thermophiles Cl.thermosaccharolyti- Microbial communities in foods are not cum and Bacillus stearothermophilus stable; heterotrophic populations change (Zamudio 2006). with time and the presence of specific chemi- Not all preservation methods are com- cals. Meat is a very rich substrate, containing pletely efficient; generally, more than one almost all nutrients necessary to support a is applied, according to the well-known 337 338 Chapter 19 “hurdle” theory (Leistner 1985)