By Anna McElhatton, Richard J. Marshall
Nutrients protection: a pragmatic and Case examine method, the 1st quantity of the ISEKI-Food e-book sequence, discusses how nutrition caliber and protection are attached and the way they play an important position within the caliber of our day-by-day lives. subject matters contain equipment of nutrition protection, foodstuff packaging, merits and dangers of microorganisms and procedure protection.
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Additional info for Food Safety: A Practical and Case Study Approach (Integrating Safety and Environmental Knowledge Into Food Studies towards European Sustainable Development)
A reduction in temperature below the minimum necessary for microbial growth extends the generation time of microorganisms and prevents or retards reproduction. There are four broad categories of microorganisms based on the temperature range for growth, as follows: ● ● ● ● Thermophilic (minimum 30-40˚C, optimum 55-65˚C); Mezophilic (minimum 5-10˚C, optimum 30-40˚C); Psychrotrophic (minimum <0-5˚C, optimum 20-30˚C); Psychrophilic (minimum <0-5˚C, optimum 12-18˚C). Chilling prevents the growth thermophilic and many mesophilic microorganisms.
Moulds are more resistant than vegetative bacteria, while yeast differ less from bacteria in this respect. Dark pigmented spores are more resistant to UV irradiation than non-pigmented. This type of radiation affects bacteria and fungi such as Penicillium and Aspergillus in grapes and oranges. Onion that had been UV irradiated showed the greatest percentage of marketable product and reduction in post-harvest rot compared with gamma rays and electron beams. Sprouting is also controlled. 50 × 10−3 J/mm2 controls soft and dry rot diseases of potato tubers in short term storage of 3 months (Gould, 1995).
Identifications of fungal biocontrol agents to ensure they prevail FUNGAL 3. Collection of non-mycotoxigenic IDENTIFICATIONS strains for biocontrol, food, and Mycotoxin system biotechnology 1. Identify mycotoxigenic fungi Socio-econimic System 2. Identify interacting fungi 1. g. funds, equipment, culture collections, training and research 2. Revenue from identifications 3. Costs and consequences from inaccurate identifiations or none FIGURE 4. Relevance of mycotoxigenic fungi identification to the control of mycotoxins.
Food Safety: A Practical and Case Study Approach (Integrating Safety and Environmental Knowledge Into Food Studies towards European Sustainable Development) by Anna McElhatton, Richard J. Marshall