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Tegnologie

Graad 7

Prosessering: voedseltegnologie

Module 19

Voedseltegnologie

  1. Inleiding

In die vorige twee modules is die stappe van ‘n tipiese tegnologiese proses breedvoerig verduidelik en daar is ook geleentheid gebied om ‘n produk/stelsel in verband met elektrisiteit te ontwerp.

Die doel van hierdie module is om ‘n inleiding tot die wêreld van voedseltegnologie te bied, asook aan die leerders ‘n kans te bied om ‘n produk onder hierdie tema te vervaardig en uit te toets.

  1. Wat is voedseltegnologie?

Voedseltegnologie behels ‘n breë veld van studie, maar dit het beslis te make met die verwerking van rou materiale na voedselprodukte. Rou materiale sluit onder andere items soos piesangs, vis, koringkorrels en aartappels in. Sommige van hierdie rou materiale kan net so geëet word, byvoorbeeld piesangs. Ander rou materiale moet egter verwerk word alvorens dit smaaklik aangebied kan word. Dit is nodig om te onderskei tussen twee kernwoorde: primêre prosessering en sekondêre prosessering. Primêre prosessering behels ‘n proses waarvolgens rou materiaal tot ‘n bruikbare produk verwerk word (koringkorrels word byvoorbeeld tot meel verwerk). Indien die meel dan gebruik word om ‘n brood mee te bak, praat ons van sekondêre prosessering.

opdrag:

Illustreer nou jou eie voorbeelde van primêre en sekondêre voedselprosessering in die tabel hieronder.

LU/AS 2.2

Wanneer ons die proses van voedseltegnologie toepas, sal ons noodwendig oor bepaalde kennis en vaardighede moet beskik. Ons sal leer van verskillende bestanddele en hul voedingswaardes. Om voedselprodukte te vervaardig sal ons sekere gereedskap en toebehore effektief moet kan gebruik en ons moet ook die noodsaaklikheid van veiligheidmaatreëls en higiëne verstaan. Om ‘n produk wat werklik gewild sal wees te vervaardig sal ons die toepaslike navorsing moet doen en dit vereis weer kennis in verband met die benutting van rekenaars en toepaslike sagteware. Somtyds behels die proses van voedseltegnologie die ontwerp van bepaalde resepte en dikwels ook om instruksies noukeurig te kan navolg. Elke suksesvolle onderneming, dus ook die toepassing van voedseltegnologie, gaan gepaard met kwaliteitskontrole. Is die bestanddele wat ek in my produk gebruik het in alle gevalle veilig? is maar ‘n enkele vraag wat die voedseltegnoloog moet vra.

opdrag 1:

Beantwoord die volgende vrae:

  1. Maak ‘n lysie van ‘n paar voedselsoorte wat rou geëet kan word sonder enige verdere verwerking daarvan.
  1. Verduidelik hoe twee voedselsoorte verwerk kan word na ander produkte toe. Voorbeeld: Vleis (rou materiaal) word gedroog om biltong (verwerkte produk) te maak.
LU/AS 2.2
  1. Higiëne en veiligheid
  1. Voelselhigiëne en persoonlike higiëne

Voordat jy jou voedselproduk ontwerp, moet jy jou kennis oor voedselhigiëne verbreed, anders kan jy dalk ‘n voedselproduk vervaardig wat onveilig is vir mense om te eet!

Voedselhigiëne is ‘n stel reëls wat daarop gemik is om kos skoon te hou. Die vernaamste metode om kossoorte skoon te hou is:

  • om voedsel te beskerm teen bakterieë;
  • om bakterieë te verhoed om in voedsel te vermeerder; en
  • om bakterieë te vernietig deur dit te kook.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Tegnologie graad 7. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11031/1.1
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