HNF 101 LEC

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Cards (872)

  • This module will discuss about two food groups namely, sugars and beverages. It will focus on properties, classification, selection and preparation/cookery of sugar and non-alcoholic beverages. This module will also cover topics on food gels and seasonings.
  • Types of sugars according to source
    • Cane
    • Beet
    • Maple
    • Corn hydrolysis
    • Sugar palm
  • Types of sugars according to chemical form
    • Monosaccharides: Glucose, Fructose, Galactose
    • Disaccharides: Sucrose, Lactose, Maltose
  • Market forms of sugar
    • Crystalline or granulated
    • Washed sugar
    • Lump sugar
    • Brown sugar
    • Raw brown sugar
    • Panutsa
    • Superfine sugar
    • Powdered or confectioner's sugar
    • Sugar crystals
  • Types of syrups
    • Cane syrup
    • Maple syrup
    • Corn syrup (Dark, Light, High fructose)
    • Molasses (Light, Black-strap)
    • Honey (Section comb, Strained)
    • Refiner's syrup
  • Sugars
    • Simple carbohydrates classified as monosaccharides or disaccharides
    • Contain 99.9% carbohydrates
  • Monosaccharides
    Simplest sugars; carbohydrate molecules that cannot be broken down by hydrolysis into simpler carbohydrate molecules
  • Disaccharides
    Composed of two monosaccharide units
  • Sucrose
    Disaccharide made of glucose and fructose
  • Sweetness
    Different sugars have different degrees of sweetness, with fructose being the sweetest and lactose as the least sweet
  • Solubility
    Inversely related to crystallization; directly related to hygroscopicity and intensity of sweetness
  • Factors affecting solubility
    • Nature of sugar
    • Degree of fineness
    • Temperature
    • Concentration of sugar
    • Agitation
  • Crystallization
    Formation of crystals from concentrated sugar solutions; important in candy making; inversely related to ease of solubility
  • Factors affecting crystallization
    • Nature of sugar
    • Nature of solution
    • Interfering substance
    • Agitation
  • Hygroscopicity
    Ability to absorb moisture from air; has a dehydrating effect on microorganisms that is useful in food preservation; directly related to sweetness
  • Inversion or hydrolysis
    Hydrolysis of sucrose in the presence of acid, enzyme invertase, or alkalis gives equal amounts of glucose and fructose (invert sugar); hastened by high temperatures
  • Maillard browning
    Reaction of the carbonyl group of a reducing sugar with the amine group of an amino acid, occurs with low temperature heat, a high pH, and low moisture
  • Caramelization
    Browning of sugar/sugar solutions when heated above melting point at 210°C or 410°F causing removal of water from glucose and fructose producing caramel, a noncrystalline product
  • Fermentation
    Glucose is highly fermentable by yeast but not lactose
  • Creaming
    Ability to incorporate air within crystals when beaten ("creamed") with plastic fat
  • Effect on temperature
    Raises boiling point and lowers freezing point of liquids
  • Effect on microorganisms
    In small amounts, favor their growth; in high concentrations, have preservative effect
  • Functions of sugars
    • Sweetening agent
    • Main ingredient in candy making
    • Volume and structure improver
    • Leavening agent
    • Peptizing agent
    • Tenderizing agent
    • Preservation agent
    • Gives desirable color
    • Inversion results in moister product
    • Undesirable effects (loss of crispness, melting, shrinkage, crystallization)
  • Types of candy according to method of production
    • Crystalline candies
    • Non-crystalline (Amorphous) candies
  • Types of candy according to predominant characteristics
    • Soft
    • Hard
    • Aerated
    • Jellies, gums and marzipans
  • Non-crystalline (Amorphous) candies

    Made from thick syrups that do not flow at room temperature; crystallization is prevented by vigorous stirring and by ingredients like acids, cream of tartar, and corn syrup called interfering agents
  • Non-crystalline candies

    • taffy (tira-tira)
    • caramel
    • hard candies
  • Types of candy according to predominant characteristics
    • Soft
    • Hard
    • Aerated candies
    • Jellies, gums and marzipans
  • Soft candies
    Chewable; often soft enough to be broken or cut by finger pressure alone
  • Soft candies
    • caramels
    • fudge
    • pastillas
  • Hard candies
    Not chewable; usually sucked rather than chewed, except the brittle types, which are crisp and easy to break
  • Aerated candies
    Characterized by sponginess and fluffiness that are derived from ingredients like egg whites or a synthetic foam
  • Aerated candies

    • marshmallow
    • nougat
  • Jellies, gums and marzipans

    Soft candies with added ingredients to give them distinct characteristics
  • Jellies, gums and marzipans
    • jellybeans
    • gum drops
    • marzipan de pili
  • Types of sugar
    • Sucrose (granulated)
    • Pulverized sugar
    • Confectioner's, powdered, or icing sugar
    • Invert sugar
    • Honey
  • Pulverized sugar
    Granules are of varying fineness
  • Confectioner's, powdered, or icing sugar
    Ultra-fine particles; suitable for sugar flowers used to decorate cakes
  • Invert sugar
    Useful in preventing unwanted crystallization of sugar in candies like candied fruit; contains fructose, which is the hardest to crystallize among sugars
  • Honey
    Has properties similar to invert sugar (presence of equal amounts of glucose and fructose)