Page 73 - APS(2022)_TG5 _Edisi Guru

Sains Tingkatan 5 Bab 2
Tarikh:

AKTIVITI Bahan Kimia dalam Pemprosesan Makanan
Perbincangan 2.13 Chemicals in Food Processing
Masteri

1. Lengkapkan jadual yang berikut tentang bahan kimia yang digunakan dalam pemprosesan makanan. TP 1
Complete the following table on the chemicals used in food processing.
2
asid benzoik gelatin penstabil asid askorbik
benzoic acid gelatine stabiliser ascorbic acid BAB
pengemulsi antioksidan pemanis perisa
emulsifier antioxidant sweetener flavouring
lesitin peluntur bahan pengawet benzoil peroksida
lecithin bleach preservative benzoyl peroxide
pewarna aspartam mononatrium tartrazin
colouring aspartame glutamat (MSG) tartrazine
monosodium
glutamate (MSG)

Bahan kimia Fungsi Contoh
Chemical Function Example

(a) Bahan pengawet Menjadikan makanan tahan lebih lama dengan Asid benzoik
Preservative membunuh mikroorganisma Benzoic acid
Makes food last longer by killing microorganisms
(b) Pewarna Membuatkan makanan kelihatan lebih menarik Tartrazin
Colouring Makes food more attractive Tartrazine

(c) Peluntur Meluntur warna asal makanan supaya kelihatan Benzoil peroksida
Bleach bersih dan tulen Benzoyl peroxide
Decolourises the original food colour so that the food looks
clean and pure

(d) Perisa Menambah rasa makanan Mononatrium glutamat (MSG)
Flavouring Enhances the flavour of food Monosodium glutamate (MSG)

(e) Penstabil Mengekalkan tekstur makanan Gelatin
Stabiliser Maintains the texture of food Gelatine

(f) Pemanis Memaniskan makanan Aspartam
Sweetener Sweetens the food Aspartame

(g) Antioksidan Mencegah pengoksidaan makanan Asid askorbik
Antioxidant Prevents the oxidation of food Ascorbic acid

(j) Pengemulsi Mengemulsikan campuran minyak dan air Lesitin
Emulsifier Emulsifies the mixture of oil and water Lecithin

2. Tandakan (3) pernyataan yang betul mengenai kesan bahan kimia dalam makanan. TP 1
Tick (3) the correct statements about the effects of chemicals in food.

(a) Pengunaan MSG dalam makanan adalah digalakkan.
The use of MSG in food is encouraged.

(b) Makanan yang mengandungi perasa dan pewarna yang berlebihan boleh menyebabkan sakit
perut, muntah-muntah dan cirit-birit. 3
Foods that contain excessive flavors and dyes can cause abdominal pain, vomiting and diarrhoea.

(c) Bahan pengawet yang terdapat dalam makanan haiwan peliharaan memberi kesan buruk
kepada haiwan tersebut. 3
Preservatives found in pet food cause adverse effects on the animal.

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02 BAB 2.indd 49 7/28/21 3:01 PM