【食品色素睇真啲】不少食品都會添加人造色素來提升色澤,長期進食人造色素可能會對身體造成許多危害。不知道大家挑選產品時又有沒有留意呢?
人造色素是由化學物質合成的著色劑,主要來自煤焦油和石油等原料加工而成。由於其制作成本低、比天然色素更穩定和鮮艷而常被食品行業使用。某些被允許使用的人造色素可能會對兒童造成注意力不足;部分敏感人士也可能會受到人造色素內的化學成分刺激,而出現過敏反應和影響健康。
天然色素則主要從植物中提取,對人體較無負擔。常在食品包裝上見到的E編號,是代表受到歐盟認可使用的食品添加物編號,常見如色素、甜味劑和防腐劑等。但並非所有含有E編號的色素都不能食用,以本港准許的天然染色料為例(圖右),則屬於對人體較為無害的色素。
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【A closer look at food colouring】Artificial food colourings are often used in prepackaged food products to enhance their colour and visuals. Long-term consumption of artificial food colouring may be harmful to our health. Are you aware when purchasing food products?
The artificial food colouring agents are synthesized from chemical substances, mainly from raw materials such as coal tar and petroleum. Because of its low production cost, and more stable and brighter than natural pigments, it is often used in the commercial food industry. Yet, certain artificial food colourings that are approved may cause insufficient attention to children. Individuals who are susceptible to sensitivity may also be stimulated by the chemical components in artificial pigments, which may cause allergic reactions and affect their health.
The natural pigments are mainly extracted from plants, which are less burdensome to the human body. The “E number” that are often seen on food packaging represents the number of food additives approved by the European Union, including coloring, sweeteners and preservatives. However, not all pigments with an E number are not edible. Taking natural coloring materials permitted in Hong Kong as an example (pictured on the right), they are relatively harmless to the human body.
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