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Know More about Cross-Border e-Commerce of Food in China

中國跨境電商食品知多少

Can Hairy Crabs with Trace Amounts of Dioxins be Sold ?

含微量二噁英的大閘蟹可以出售嗎?

黑心肉再次降臨香港?

把食品品質安全監管作為市場供應重點

黑心食品

食品安全管理系統認證 – 有必要嗎?

Food Safety Management System Certification – Is it Necessary?

實現“藏糧於技”關鍵在於提質增效

水質和大氣品質較差的城市或重合

何謂“天然”食物?

What is “Natural” Food?

What Can Go Wrong with Sea Cucumbers?

海參有問題?

農業部給出轉基因產業化路線圖:口糧作物繼續被“雪藏”

「有機食品」也出事?

Aren’t Organic Foods Safer?

中國需要什麼樣的食品安全戰略?

Puffer Fish and Fish Maw

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“食品摻偽” 知多少

“食品摻偽” 知多少

曾耀源

(廠商會檢定中心)





除了食物的品質和安全性外,消費者亦關注食物的真偽。沒有人希望購入的貴價食品摻雜便宜假貨,亦不接受食品標籤所示的成份、來源地和食物源性(動物或植物)與事實不符。


14a.png

http://oceana.org/sites/default/files/reports/Bait_and_Switch_report_2011.pdf



食物摻偽的例子


“食物摻偽” 一般指有人刻意以摻假手段欺騙食物買家,從而牟取利益。這是一個全球性問題,近年食物造假個案亦有上升趨勢。食物摻偽不單止影響消費者,亦會影響食物供應鏈上的其他持份者 (例如農戶、食物生產商、分銷商和零售商等)。在歐洲,最經典的 “食物摻偽” 例子當然是2013年發生的“馬肉冒充牛肉” 事件; 至於中國在2008年亦曾發生的 “三聚氰胺毒奶粉” 事件。 其他食物摻偽例子包括但不限於:


14Cb.jpg


食物摻偽帶來的問題


有些食物摻偽事件 (例如以養殖石斑魚假冒野生石斑魚) 只造成金錢損失,但並不會損害人體健康。然而,像三聚氰胺事件這一類食物摻偽便曾造成嚴重的食品安全問題 (約三萬名中國兒童不適和至少六名兒童死亡)。


此外,消費者可能因為宗教信仰原因而特別關注食物是否真實。以標示為清真食品的牛肉批為例,假如它被摻入豬肉成份,穆斯林人士誤食該假清真食品後便會違反教規。



食物摻偽資料庫


在美國,美國藥典委員會(USP) 根據過往多份科學文章和媒體對食物摻偽的報導,建立了一個食品造假數據庫1.

1http://www.usp.org/food-ingredients/food-fraud-database


在歐洲,消費者亦可透過歐盟食品和飼料快速預警系統(RASFF) 2得悉造假食品。一些歐盟國家(例如英國) 亦已建立適用於其國家的食品造假數據庫。

2http://ec.europa.eu/food/safety/rasff/index_en.htm


有鑑於此,筆者認為香港政府亦應考慮建立一個食品造假數據庫。這有助分析食物摻偽在本港發生的情況和趨勢,從而更有效保障本港市民的健康。



食品摻偽的檢測


現時有多種檢測方法被廣泛用作辨別食品真偽。例如,色層分析法 (包括氣相色譜法-質譜法聯用GCMS) 可用作分離和辨識食品中的成份; 穩定同位數分析法可確認食品的來源地; 而以脫氧核糖核酸(DNA)為本的檢測方法(例如即時聚合酶鏈鎖反應Real time PCR) 越來越常用於物種鑑定 (包括確認清真食物內是否含有豬肉成份)。食品檢測有助核實食品標籤上資料的真確性 (例如成份和來源)。



解決食物摻偽問題


當食品摻偽事件發生後,可能需要很長時間和資源才能恢復消費者和市場的信心。為了打擊食品摻偽問題,政府有需要加強監控食物供應鏈的各個環節 (例如定期突擊到訪以找出摻偽行為)、加重對行騙者的罰則,以及加強檢測一些較常造假的食物 (包括牛奶、菜油、香料和海產等)。


#食品檢驗最新資訊

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香港食品安全協會