A food colour is a food additive used or intended to be used primarily for adding or restoring colour to a food.

食用染料是主要为食物增加或恢复颜色而使用或打算使用的食品添加剂。

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You could also try adding pure lemon extract and a drop of yellow food colour in place of the rosewater and pink colouring.

你也可以尝试添加纯柠檬香精和一滴黄色食用色素，而不是玫瑰水和粉色色素。

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"Food additive" means any synthetic compound or natural substance put into food to improve its quality, colour, fragrance or taste, or for the sake of preservation or processing.

食品添加剂：指为改善食品品质和色、香、味，以及为防腐和加工工艺的需要而加入食品中的化学合成或者天然物质。

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Shops are flooded with cherry blossom merchandise and food, the colour pink suddenly popping up in decorative garlands and flower-shaped sweets.

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It does everything from breeding new seeds and cattle, to creating ultra-thin edible wrapping paper for foodstuffs that changes colour when the food goes off, to running a nanotechnology laboratory creating biodegradable ultra-strong fabrics and wound dressings.

ECONOMIST: Brazilian agriculture

And, indeed, the majority of fast-food restaurants feature red prominently in their colour schemes.

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