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Physicochemical properties and colour stabilities of different icing types with<br />

the addition of anthocyanin extract from Butterfly pea flower<br />

Nurul Izzati Binti Abdul Ghani<br />

Supervisor Name: Dr Yusnita Binti Hamzah<br />

Bachelor of Food Science (Food Technology)<br />

School Of Food Science and Technology<br />

Butterfly pea flower (BPF) contains high anthocyanin which commonly applied as natural<br />

blue colourant in traditional Kueh and Nasi Kerabu. Meanwhile, synthetic blue colourant<br />

(Brilliant blue) is frequently used as food colourant in confectionary product such as icing<br />

as it is more stable through processing and storage. However, it is reported to have health<br />

effect such as skin sensitivity, nausea and breathing problems. Therefore, this study will<br />

be carried out to determine the physicochemical properties and colour stabilities of<br />

different icing types with the addition of anthocyanin extract from BPF during chilled<br />

storage. The anthocyanin from BPF (Clitoria ternatea) will be extracted using distilled<br />

water and applied in the formulation of buttercream, whipping cream and glaze icing.<br />

Physical and chemical properties including viscosity, thermal properties, pH, colour,<br />

microstructure observation moisture, anthocyanin and fat content will also be<br />

determined. The colour stabilities will be analysed for every 4 days for 30 days of chilled<br />

storage. It is expected that glaze icing will show the highest colour intensity, anthocyanin<br />

content and melting point as compared to buttercream and whipping cream icing.<br />

Besides, all the icing will experience colour degradation through storage with the least<br />

showed by glaze icing. As conclusion, anthocyanin extract from BPF has potential to be<br />

used and applied as natural blue colourant in icing.<br />

1285 | UMT UNDERGRADUATE RESEARCH DAY

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