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Food Preservation methods

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Struggling with Food Microbiology? Stop wasting hours reading dense textbooks. Master the complex topics of Irradiation and Biopreservation in minutes with this high-yield lecture deck. ‍ Who made these notes? These slides were designed by an M.Phil Microbiologist with University Lecturing experience. Unlike random student notes, these are professional, accurate, and structured specifically for university-level exams. What’s Included (20 Slides): This presentation covers the two modern pillars of food safety in clear, bulleted formats: 1. Food Irradiation (The "Cold Pasteurization"): Difference between Radurization, Radicidation, and Radappertization. Ionizing vs. Non-ionizing radiation sources (Gamma, X-ray, E-beam). Mechanism of action (DNA damage). Applications & Safety regulations. 2. Biopreservation (The "Natural" Way): Use of Lactic Acid Bacteria (LAB) and their metabolites. Bacteriocins: Nisin, Pediocin, and Reuterin explained. Bacteriophages in food safety. Controlled acidification. Why buy this deck? Exam-Focused: Highlights the specific definitions and differences professors ask about. Visual & Clear: Perfect for quick revision before a test. Trustworthy: written by an expert in the field. Perfect for: Food Technology & Safety Students General Microbiology & Biology Modules Nutrition & Dietetics Majors Download now to ace your Food Microbiology module!

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Preservation of Food
Irradiation Method and Biopreservation

,“The irradiation process is another nonthermal technology that involves
exposure of food to ionizing or nonionizing energy and is known as cold
pasteurization”.

, IRRADIATION OF FOOD

 It is the exposure to ionizing radiations

 E.g. Beta particles and gamma rays

 AKA, Cold pasteurization

 Kills bacteria, molds , insects and pests

 Reduces the ripening and spoiling of foods

 Approx 500,000 tons of food is irradiated/year worldwide in 40 countries

 Mainly spices and condiments, with an increasing segment of fresh fruits
are irradiated for fruit fly quarantine.

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