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31 Cards in this Set

  • Front
  • Back

Microbes in food

Ansnnd

Control microbes in food preservation

Pg 182-186


191 and 795-798

Micro organism dairy products

Milk: sterile in udder


Cheese:


Separate whey (liquid) from protein curd(casein)


enzyme: rennin under low pH


Use S. lactis and S. cremoris to produce lactic acid


Cheese classified according to hardness



Inoculayed with additional mocrobes to produce various types of cheese


(Blue or bleu, Roquefort, Camembert, Swiss)

Food microbiology


butter

Fat globules


Leuconstoc sp.


Requires


Ncfkkdndnddn


Buttermilk


Bdkdkdk



Yogurt



Kefir and kumiss

Food Micro


Nondairy

Bread: yeast


Co2 bread rises



Sauerkraut pickles olives


Made with


leuconstoc


Lactobacillus



Soy sause:


Made with aspergillus oryzae

Food micro


Beverages

Cider apples contain sugar and yeast



Vinegar


Acetobacter or glyconobacter


Made from cider or wine


Convertsethanol to acetic acide

Food micro alcoholic

Bear barley or other carnohydrates



Wine grapes


Sake rice


Rum sugar cane


Vodka potatos


Tequila agave

Food micro


single celled protien


SCP

Microbes are high in protein·


Supplement diet with microbes Used In: animal fodderTorula sp. (yeast) and certain bacteria used

Industrial micro


Amino acid production


Glutamic acid

1 million tons yearFood condiment


Msg food allergies


Produced by micrococcus and corynebacterium glutamicum

Industrial microAmino acid production


Lysine


250,000 tons a year


Cornebacterium glutamicum

Industrial microAmino acid production


Citric acid

1.6 mil tons a year


Aspergillus niger:


converts molasses to citric acid



70% used in food industry


30% used for industrial purpose

Industrial micro


Enzymes


Protease

Breaks down proteins


Aspergillus sp. And Bacillus sp.



Detergents meat tenderizer


leather production, chill proofing bear

Industrial microEnzymes


Amylase

Breaks down starches


Aspergillus and Bacillus sp.

Industrial microEnzymes


Lactase

Breaks down lactos


Yeast

Industrial micro


Vitamin production


Steroids transformation


Vaccines toxoids

Whshdjdkdkdjdj


Pg 804


Pg 812

Industrial microAntibiotics


Fungal sources

Penlclllium & Cephalosporlum:


Penlcillin, cephalothins, griseofulvin

Industrial microAntibiotics


Bacterial sources

Bacillus sp: Streptomyces, : Streptomycin, tetracycline, amphotericin, chIoramphenicol

Industrial micro


Agricultural uses


Rhizobium

Nitrogen fixer



Symblotlc relation with: legumesMixed with peat moss to retain moisture and then seeded with legumes to ensure Infection of the plant

Industrial microAgriculteral


Bacillus thuringiensis

Microbe eats mosquito larvae



Municipal control program and by gardeners

Biomass

Organic matter produced by living organisms


crops, waste ,trees

Bioconversion

Using microbes to convert biomass into energy

Biofuels

Ethanol from agriculture crops



Methane from landfills

Genetic engineering


Terms


Recombiant DNA

Any artificial manipulation of genes



From within a species between different species

Genetic engineering


Terms


Restiction enzymes

Enzymes that cut DNA into pieces that are easy to recombine in-vitro

Genetic engineering


Terms Vector

Transports forien dna into a cell


Plasmid or virus that inserts genes into a cell

Genetic engineering


Terms Clone

Generically identical

Medical therapy


Human insulin

E. Coli carries human gene that makes this hormone

Medical therapy


Human growth hormone


Hepatitis b vaccine

Yeast carries viral gene

Genetic engineering


Gene therapy

Replace defective or mutated gene



Cystic Flbrosls: Inhalation of a harmless cold virus that carries the healthy gene that the person lacks


Under research Investigation

Genetic engineering


Agammaglobulinemia

Inability to produce antibodies


Addition of genetically engineered virus to the bone marrow

Genetic engineering


Agricultural uses

Bovine growth hormone


BGH


E.coli carries gene



Gene for pest resistance


Inserted into plants



Insertion of nitrogen-fixation genes into plants using: rhizobium