Page 149 - SK Year 6 Science DLP
P. 149

FOOD PRESERVATION
                                                                                          FOOD PRESERVATION
                                                                                          PENGAWETAN MAKANAN

                                                       Heating at boiling temperature kills
                                                       most bacteria that are active without
 Canning and bottling                                  affecting much the taste and nutritional

                                                       value of the food.

                             Can is filled with sauce,                          Cans are cooled
                             oil or sugar solution.  3        Cans are heated in   by immersing
                                                              a pressure cooker to   into water or   Cans are labelled
                                                              kill most bacteria.  spraying water.  and packed for
                                                                                               marketing.
                          1           2
                                                                  4              5              6



                   Food is filled                Can is sealed to
                   into the can.                 make it airtight.




                      Pasteurisation is the process of heating food to a certain
                      temperature for some time and followed by rapid cooling.

                                               pasteur pipe








                           heating                                             instant
                                                                               cooling         pasteurised milk
 milking cows



                                                       CLICK          Louis Pasteur was the scientist who
                                                                      discovered that the method of heating
                                                                      followed by rapid cooling kills most
                                                                      bacteria. The method known as
                                                                      pasteurisation is named after him.


                           smoked fish                        TASK
                                                              TASK


                                                   Using your creativity, create a new type of
                                                   preserved food innovatively using a preservation
                                                   method that you have learnt.

                        smoked banana
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