Page 141 - SK Year 6 Science DLP
P. 141
PENGAWETAN MAKANAN
FOOD PRESERVATION
8 8 FOOD PRESERVATION
500,000 BC
Cooking food using fire is the
earliest preservation method
in human civilisation.
12,000 BC
Ancient Arab society
dried and stored food as
preparation in case
of flood.
1400 AD
1862
Humans rubbed salt into
food to avoid wastage and
shortage of food.
Present Day
Louis Pasteur discovered a method to destroy
bacteria by heating and cooling liquids.
Presently, the use of chemical
preservatives allows food to last for a
longer period of time.
Since ancient times, humans have been preserving food using various
methods. State the importance of food preservation.
133

