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Class Notes (1,030,061)
AUS (35,043)
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CHEM (72)
CHEM215 (24)

Class Notes for CHEM215 at University of Wollongong

Food Chemistry

CHEM215 Lecture Notes - Lecture 23: Chronic Toxicity, Nyctalopia, Xerophthalmia
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Lecture 23 Vitamins 2 Fatsoluble vitamins: have nonpolar structures and can therefore accumulate in fatty body tissues. Diet deficiencies do not manifest themselves immediately (as opposed to water soluble vitamins in whic...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 24: Osteoporosis, Iron(Iii) Oxide, Myoglobin
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Lecture 24 Minerals Minerals are nutritionally significant elements > composed of only one kind of atom. Minerals are inorganic > do not contain carbon Bulk minerals > higher quantities ne...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 22: B Vitamins, Atrophic Gastritis, Vitamin K
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Lecture 23 Vitamins 1 Term vitamin comes from the Latin words vita which means life, and amine as it was thought that they contained an amino group. They were discovered in connection with the abi...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 21: Aflatoxin B1, Aspergillus Flavus, Tetraodontidae
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Lecture 21 Food Toxicology 2 Endogenous toxins in animal foods: Puffer fish toxins: powerful toxin tretrodoxin found in organs of puffer fish, mostly liver and ovaries. All 120 species of puffer fish ma...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 20: Acetylcholinesterase, Solanine, Solanaceae
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Lecture 20 Food Toxicology 1 Classes of food toxins: Endogenous toxins in plant foods > plants that produce secondary metabolites that are toxic to humans. Endogenous toxins in animal foods Mycotoxins Bacterial toxins > li...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 19: Food Additive, Phytol, Olive Oil
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Lecture 19 Food Additives 2 Chlorophyll: Composed of two molecules: Phytyl chain Porphyrin The phytyl chain of chlorophyll is a long hydrocarbon chain that makes it insoluble in water. Porphorin has has a ring system that ...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 15: Surface Tension, Heat Treating, Pasteurization

Lecture 15 Food Preservation 1 Traditional methods of food preservation: Cooking - kills microorganisms/limits their growth Drying - reduces water content thus inhibits the growth of microorganisms ...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 12: Theaflavin, Food Processing, Flavan-3-Ol

Lecture 12 Food processing 1 Why are tea and coffee important? part of our everyday life > social importance Has a large economic importance Caffeine is extracted and used as a starting compound ...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 13: Alkaloid, Sympathetic Nervous System, Coffee Production

Lecture 13 Food Processing 2 Coffee processing: Methods of processing coffee can have large affects on taste and aromas (ie quality). 1. Picking the fruit (cherries): usually picked by hand, so is labour intensive...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 16: Electric Field, Lipid Bilayer, Electrical Resistance And Conductance

Lecture 16 Food Preservation 2 Hurdle Technologies: This involves using multiple mild methods of food processing (as opposed to a single harsh method) to ensure adequate preservation of foodstuff whilst ...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 17: Plant Cell, Food Irradiation, Atmospheric Pressure

Lecture 17 Food Preservation 3 Sterilisation vs Pasteurisation: Refers to complete destruction of microorganisms and spores Food is heated at 121C for 15mins > this is quite hot and will turn a lot of f...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 18: Baking Powder, Chlorophyll, Clostridium

Lecture 18 Food Additives 1 Types of food additives: Preservatives > shelf life and safety Colouring agents > improve appearance Taste, odour and texture modifiers Processing agents > fac...

Chemistry
CHEM215
Aaron Oakley
CHEM 215 Lecture 14: Lec 14 - Food Processing 3

Lecture 14 Food Processing 3 Tea quality assessment 1 tasting: Tea is exported to major distribution centres for quality assessment Tea tasters determines the qualityprice of teas by studying various characteristics and d...

Chemistry
CHEM215
Aaron Oakley
CHEM215 Lecture Notes - Lecture 11: Lignin, Attention Deficit Hyperactivity Disorder, Dietary Fiber

Carbohydrates and Health: Common misconceptions: carbohydrates cause obesity bread and bananas are fattening low carb diets help you lose fat fast sugar causes diabetes, heart disease and behaviour problems in children fi...

Chemistry
CHEM215
Aaron Oakley
CHEM 215 Lecture 10: Lec 10 - Carbohydrates 3

Structural polysaccharides: Seaweed: consists of structural polysaccharides including alginates and agar. Alginates: linear polymers of 2 different monosaccharide units which are joined by 1,4links. These alginates join to...

Chemistry
CHEM215
Aaron Oakley
Inorganic Chemistry - Reference Guides

This Guide provides invaluable reference material to anyone who requires readily accessible information concerning the basic principles that underlie this complex science. The Guide carefully references the Periodic Table ...

Chemistry
CHEM 30100
All Professors
Permachart - Marketing Reference Guide: Iupac Nomenclature Of Inorganic Chemistry, Lithium Aluminium Hydride, Polyatomic Ion

p e r m a c h a rt s MT I n o r g a n i c C h e m i s t r y N o m e n c l a t u r e ...

Chemistry
CHEM 30100
All Professors
Permachart - Marketing Reference Guide: Locant, Parent Structure, Substituent

permacharts TM O r g a n icC h e m is t ryN o m e n c la t u r e Nam...

Chemistry
CHEM 22700
All Professors
Permachart - Marketing Reference Guide: Beta Particle, Beta Decay, Atomic Number

permacharts TM Periodic Table of the Elements ...

Chemistry
CHEM 11100
All Professors
Permachart - Marketing Reference Guide: Carnot Heat Engine, Carnot Cycle, Isentropic Process

permacha srtM PHYSICAL CHEMISTRY Basics Adiabatic process in which no heat is transferred into or out Internal energy The total kinetic and potent...

Chemistry
CHEM 11100
All Professors
Introductory Chemistry - Reference Guides

This Guide serves as a well organized and effective point of entry for anyone embarking upon the study of Chemistry. All fundamental terms are clearly organized in chart form, with illustrative graphics. More complex conce...

Chemistry
CHEM 11100
All Professors

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