CU-Boulder IPHY 2420 - Providing protein for an expanding human population (3 pages)

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Providing protein for an expanding human population

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Providing protein for an expanding human population


Lecture number:
Lecture Note
University of Colorado at Boulder
Iphy 2420 - Nutrition for Health and Performance
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IPHY 2420 1st Edition Lecture 35 Outline of Last Lecture December 5 2014 1 2 3 4 5 6 Obesity and Surgery Obesity Exacerbating Conditions Other Issues With Obesity Gut Microbiota What can you do to lose Weight What if you can t loose Weight Outline of Current Lecture December 8 2014 Providing protein for an expanding human population Current Lecture 1 2 3 4 5 6 7 AQUACULTURE COMMERCIALLY FARMED FISH THE BLUE REVOLUTION OTHER TYPES OF FISH FARMING WHY FISH INSECTS AS FOOD SOURCE ISSUES The Pro s and Con s Providing protein for an expanding human population Increasing Demand By 2050 we will need to feed 2 billion more people HOW 1 AQUACULTURE a The world now produces more farmed fish than beef b 14x increase since 1980 now at 70 million tons c Population Growth lot more people are getting rich china and India they are asking for protein when they haven t before d Income Growth e Seafood s heart healthy reputation omega 3 f Additional 35 increase projected in next 20 years 2 COMMERCIALLY FARMED FISH a Global catch of wild fish stagnant we overfished b We need more protein but not from wild fish These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 3 4 5 6 7 c Concerns about feedlot industry in ocean THE BLUE REVOLUTION a 90 of farmed fish seafood are from Asia b Tropical Mangroves destroyed shrimp farms c Agricultural pollution Nit phos dead fish d Densities antibiotics and pesticides e Banned for use in the U S f U S imports 90 of seafood 2 is inspected found numerous banned substances Like g Tilapia carp catfish fast growing often grown in unhealthy way h Ancient art of aquaculture thousands of years i Density and intensification lower quality of fish j Feeding the Fish to grow quickly vs omega 3 s corn meal is the cheapest this causes them to have 0mega 6 which is bad k Grains vs fish anchovies fish oil sardines then produces omega 3 l 70 of the worlds fish mean and 90 is fish oil goes to feeding fish so they produce omega 3 OTHER TYPES OF FISH FARMING a Atlantic Salmon Industry densely packed pens in oceans b Norway Scotland Chile Patagonia c Parasites pollution disease sea lice oil spills d Open water best option temp wash away poo vs tanks southeast us must be by lake for fresh water vs on land worry about oxygen and parasites e NO GOOD WAY TO GROW FISH WHY FISH a Fish need fewer calories to create a pound of food than other species efficient b Cold blooded don t have to keep them warm food equals muscle c Buoyant environment not working against gravity d 1lb food 1lb fish 3lb pork 7lb beef e Aquaponics use nitrogen as link between aquatic and terrestrial systems through symbiotic interaction Using nitrogen from poop to raise plants Scale size problem INSECTS AS FOOD SOURCE a 1900 edible insects on earth b 2 billion people eat them daily raw or cooked c Only the West has the ick factor eating bugs is gross d ENTOMOPHOLOGY The consumption of insects as food New United Nations report urges their consumption e 36 Africa 23 Americans 29 Asia 11 Europe WHY INSECTS a Rising cost of animal protein b Environmental pressures c Population growth d e f g h Efficient conversion of energy Increased demand for protein among middle class MEALWORMS protein mineral and vitamin content similar to fish GRASSHOPPERS As much protein as beef but less fat BEETLES More protein then other insects Native Americans eat them like popcorn over coals i BUTTERFLIES AND MOTHS Pupil stage full of protein and iron so eaten by children and pregnant women j ANTS 100G 14 g protein more than eggs also high in calcium and iron k AVALIBILTY Insect powder clean pressure cooked bugs to create Cricket Flour each bag has 70g of protein as much as beef as much calcium as milk as much Vitamin B12 as salmon and 17 amino acids including Lysine Toasty nutty flavor 8 ISSUES The Pro s and Con s a PRO Less water less pollution methane cows burp out methane which is bad for ozone level most of the methane in the world is by cows land use b CON Cleanliness cooking spoilage eggs spoil easy pesticides and insecticides toxicity c OTHER PROTIEN SOURCES Soybeans tofu quinoa only complete beans lentils and seitan

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