FOOD20003 Lecture Notes - Lecture 9: Fructooligosaccharide, Hyperglycemia, Atherosclerosis
CARBS FOOD SOURCES:
• Wholegrains food
• Vegetables, legumes and fruits
• Milk à lactose
SUGAR FOOD SOURCES
• Excessive sugar intake à obesity b/c of the development of body fat from excess energy
• BUT sugar à empty calories b/c deliver energy but has no nutrients
• Naturally occurring sugars: fruits, veggies, milk
Dental caries
• Bacteria residing in dental plaque à in contact with teeth
• Bacteria breakdown of sugar produces lactic acid which corrodes the enamel of teeth
Artificial sweeteners:
• Non-nutritive sweetener
• Benefit: does not contribute to dental carries!
• Saccharin: readily absorbed and secreted as urine, doesn’t accumulate in body
• Stevia: herbal alternative, glycoside found in leaves
• Sucralose: passed through digestive tract
• Acesulfame-k, alitame and cyclamate
Sugar replacer
• Nutritive sweetener
• Sugar alcohols and polyols
• Generally safe (no dental caries)
• Absorbed more slowly & metabolised different in the body (less sweet)
• LOW GI
DIETARY FIBRES
Regulatory roles of FSANZ, AOAC, AACC
• FSANZ: food regulation, safety standard
• AOAC: regulation of food analyses
• AACC: regulation of cereals analysis
Definitions:
• Dietary fibres: plant carbs that are resistant to mammalian digestive enzymes
• Total dietary fibres:
o Food residue remaining after removal of lipid, protein and starch
o Mainly cellulose & non-cellulose polysaccharides
Document Summary
Carbs food sources: wholegrains food, vegetables, legumes and fruits, milk lactose. Sugar food sources: excessive sugar intake obesity b/c of the development of body fat from excess energy, but sugar empty calories b/c deliver energy but has no nutrients, naturally occurring sugars: fruits, veggies, milk. Dental caries: bacteria residing in dental plaque in contact with teeth, bacteria breakdown of sugar produces lactic acid which corrodes the enamel of teeth. Artificial sweeteners: non-nutritive sweetener, benefit: does not contribute to dental carries, saccharin: readily absorbed and secreted as urine, doesn"t accumulate in body, stevia: herbal alternative, glycoside found in leaves, sucralose: passed through digestive tract, acesulfame-k, alitame and cyclamate. Sugar replacer: nutritive sweetener, sugar alcohols and polyols, generally safe (no dental caries, absorbed more slowly & metabolised different in the body (less sweet, low gi. Regulatory roles of fsanz, aoac, aacc: fsanz: food regulation, safety standard, aoac: regulation of food analyses, aacc: regulation of cereals analysis.