35. Food Irradiation and Its Safety

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  • Опубликовано: 30 июл 2024
  • MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016
    Instructor: Michael Short
    View the complete course: ocw.mit.edu/22-01F16
    RUclips Playlist: • MIT 22.01 Introduction...
    The use of ionizing radiation to sterilize and preserve the freshness of food is explained using topics from the course. Beneficial effects and required doses of food irradiation are introduced, alongside some reductions in nutritional content under certain circumstances. Costs vs. benefits are shown to be quite skewed towards benefits in terms of food safety vs. slightly diminished nutritional content only in certain cases.
    License: Creative Commons BY-NC-SA
    More information at ocw.mit.edu/terms
    More courses at ocw.mit.edu

Комментарии • 49

  • @mitocw
    @mitocw  3 года назад +4

    To report potential content errors, please use this form: forms.gle/8B2zcUvfCtgJdTdE7

  • @robertkennion9020
    @robertkennion9020 2 года назад +24

    Great nod to the worlds best MRE consumer. Steve1989, we salute you

  • @danridesbikes7183
    @danridesbikes7183 Месяц назад +3

    I've slowly been watching this course over a year. In that time I've quit my job in automotive design and joined the nuclear industry as a mechanical engineer. I've also applied and been accepted to the University of Texas masters' of nuclear engineering program for this Fall. Thanks Dr. Short for the inspiration and your amazing teaching skills. I hope our paths cross one day.

    • @ehfik
      @ehfik Месяц назад +1

      thats great. one of the few useful applications of the internet xD

  • @tacticoolrick5562
    @tacticoolrick5562 2 года назад +3

    The attention he takes to guide his students to good sources, vs junk sources is fantastic.

  • @rupeshknn
    @rupeshknn 3 года назад +12

    MIT Thank you for this amazing course. Please plan to make a video series for 22.02, I am looking forward to it. @MIT OpenCourseWare

    • @DDDelgado
      @DDDelgado 6 месяцев назад

      Yeah, I can't find that play list. 😢

  • @nikolaoschatzisavvas8548
    @nikolaoschatzisavvas8548 3 года назад +8

    Dear Sir God Bless you, i watched your entire Lesson, thank you so much, very nice work ! Hope you can continue in the future !

  • @NormReitzel
    @NormReitzel 2 года назад +2

    ‪A good reference on what things smell or taste like is "Common Fragrence and Flavor Materials" by Bsauer, Garbe, and Surburg. Wilwy, 4td ed, 2001.

  • @jessevelez
    @jessevelez 2 года назад +2

    This course is thoroughly educational and a joy to watch.

  • @nathanielthomas4437
    @nathanielthomas4437 Месяц назад

    An excellant conclusion to a fantastic course. Looking forward to more nuclear courses from OCW!

  • @dancooper8551
    @dancooper8551 2 года назад +3

    Absolutely loved this class!!

  • @brainstormingsharing1309
    @brainstormingsharing1309 3 года назад +2

    Absolutely well done and definitely keep it up!!! 👍👍👍👍👍

  • @DoktorDevious
    @DoktorDevious 2 года назад +1

    Thanks for the course, really good.

  • @daveb5041
    @daveb5041 2 года назад +4

    35:59 I GET TO BE SMART!: Fats in foods are long carbon chains to a triglyceride backbone and not aromatic like benzene. Flavors on the other hand are often aromatic hence where the original latin or greek comes from (always mix the two up, should have paid more attention in english) those can be smelt in ppb and would screw up taste.

  • @chigennucketgames1689
    @chigennucketgames1689 Год назад +2

    Is it safe to work with products irradiated with x-rays

  • @eswad007
    @eswad007 4 года назад

    Thank you for this course

  • @renex8434
    @renex8434 2 года назад +4

    As a german i have to say it sounds cute how he pronounce „Bremsstrahlung“.

  • @johndavid5618
    @johndavid5618 10 месяцев назад +1

    "Very intresting presentation. Thank you.

  • @idontneedaname85
    @idontneedaname85 2 года назад +2

    Congrats to the 6k that made it to the end.

  • @CharlotteMimic
    @CharlotteMimic 2 года назад +1

    This is so cool!

  • @akshonclip
    @akshonclip 2 года назад +4

    Steve1989MREInfo is the you tube channel of the guy that eats MRE’s from the civil war.

  • @markheller8646
    @markheller8646 2 года назад +1

    Thank you professor. Grad of The Culinary Inst of America/ SUNY Stonybrook.

  • @AlChemicalLife
    @AlChemicalLife 2 года назад +3

    Noooooo.... it's the end of the course... I need more nuclear brain food !! 😩

  • @DDDelgado
    @DDDelgado 6 месяцев назад

    Thank you Lecturer , I watched the entire play list 📃, excellent information. I published an article in a magazine from this information, cheers 🥂.

  • @Bdix1256
    @Bdix1256 2 года назад +1

    I wonder about the creation of prions through irradiation of proteins ?

  • @tacticoolrick5562
    @tacticoolrick5562 2 года назад +2

    "yeah it's gross but that's why we do food irradiation" haha. Yes!

  • @freaki0734
    @freaki0734 2 года назад +2

    lol when my parents took me to a finer restaurant than I am used to and I did order pork I felt like the meat tasted like it had a little bit of shit in it glad to find out that I may have well been right or not glad I guess lol

  • @chrisbrown6677
    @chrisbrown6677 2 года назад +1

    This is tremendous content, loved this series. As a product designer though now I can't unsee that insane looking app being used that I am pretty sure was designed by a color blind engineer.

  • @edward4467
    @edward4467 2 года назад +1

    Does the food have any food value afterwards?

  • @usandmexico
    @usandmexico 2 года назад

    Regarding the topic of poop contributing to pleasant smells, guess what is expensive and used in fragrances? It's Ambergris.

  • @trcostan
    @trcostan 2 года назад +1

    My modern physics professor literally read from a book!

  • @APU290
    @APU290 2 года назад

    Does Irradiation damage the molecules of Vitamins?

    • @Yodavid1
      @Yodavid1 2 года назад +1

      yes

    • @APU290
      @APU290 2 года назад +1

      @@Yodavid1 To a greater extent or negligible?
      A number of people eat fruits for vitamin C, which is so unstable that gets destroyed simply by heating process.

    • @pathfinderwotr747
      @pathfinderwotr747 2 года назад

      You can read for yourself in the link below. Scroll down for effects on meat and fruits. In short it does reduce the vitamins you get out your food.
      www.scielo.br/j/babt/a/VdyBWQztGhTG9CC6z9yQ5xL/?lang=en#:~:text=Water%20soluble%20vitamins%20are%20less,with%20the%20cooking%2Dirradiation%20combination.

  • @harrywhittaker7563
    @harrywhittaker7563 2 года назад

    16:21 There's a fourth and cheapest way, mash an alpha emmiter with Beryllium

  • @Talon3000
    @Talon3000 2 года назад +1

    Huh. I've never heard of irradiation of food.
    Turns out it's simply forbiddon in my home country. interesting. xD

  • @superkalafragilistic8289
    @superkalafragilistic8289 Год назад +1

    If it kills bugs, bacteria and reproductive cells and we consume it, what does it kill or damage in our bodies?

    • @ernestchadwell9069
      @ernestchadwell9069 11 месяцев назад

      Your nuts, it makes them into stone and they won't work. This is basic and proven science as according to the Bible

    • @paulanderson7796
      @paulanderson7796 10 месяцев назад

      Nothing. The radiation is not absorbed by the food.

    • @nathanielthomas4437
      @nathanielthomas4437 Месяц назад

      The food is irradiated, not you. If you were irradiated that heavily, it would kill you, naturally. However, if you pay attention at around 10:00, he goes over which types of radiation are safe for food irradiation and won't leave any radioactivity in the food. Gamma radiation generally does not create radioisotopes at below 5 MeV.

  • @fallenslave6684
    @fallenslave6684 4 года назад

    37

  • @sultanofsick
    @sultanofsick 4 года назад +14

    Watching this after covid-19, "If there's any organization you think you can trust about health, it's the World Health Organization."
    ooof.

  • @esteban19h08m
    @esteban19h08m 2 года назад +1

    Professor, you armpit is full of this heat!, watch out with your radioactive
    deodorant!... I am just teasing, i would have been a nightmare with you if i were your student x´3
    Thank you very much for all your interesting classes. greetings from Costa Rica and the pineapples plague,... i dont eat them at all... :'c

  • @pronelason
    @pronelason 4 года назад +8

    Not today's WHO