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Bananas That Stay Yellow for Longer Move Closer to UK Supermarkets

切開後更久不變黃的香蕉 距離英國超市上架更進一步

#gene editing#food waste#bananas#technology#UK
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Bananas that do not turn brown after peeling could soon be available in UK supermarkets. A British biotechnology company named Tropic has developed gene-edited bananas that keep their yellow color, taste, and texture for an extra day or two after being sliced.

an extra day or two= 額外的一兩天

Bananas usually turn brown quickly once exposed to air, which causes many consumers to throw them away. To solve this issue, scientists used a gene-editing tool called CRISPR-Cas9 to alter a single gene in the banana plant. This edit reduces the production of an enzyme responsible for browning. Because the process only makes changes that could occur naturally or through traditional breeding, officials classify the fruit as a "precision-bred" crop rather than a genetically modified organism containing foreign DNA.

once exposed to= 一旦暴露於……rather than= 而不是

The UK Department for Environment, Food and Rural Affairs has officially confirmed the banana's precision-bred status. Before the fruit can be sold to British consumers, the Food Standards Agency must complete a full safety review. According to Tropic, the longer-lasting bananas could help prevent food waste in the UK, where about 1.4 million edible bananas are discarded every day. The company has already secured regulatory approval for the fruit in ten other countries, including Japan and Brazil.

secure approval for= 成功獲得……的官方批准

學習筆記

文法整理

句型意思
move closer to距離達成或實現更進一步
an extra day or two額外的一兩天
once exposed to一旦暴露於……
rather than而不是
secure approval for成功獲得……的官方批准

詞彙整理

單字意思
gene-edited經過基因編輯技術改造的;指利用基因編輯技術,對生物的遺傳物質進行特定修改的
precision-bred以精準育種方式培育的;透過選擇性地調整生物本身可能自然產生或可用傳統育種方式產生的特徵,而培育出來的
enzyme酵素:由細胞製造、能加速特定生化反應的複雜蛋白質。
discarded被丟棄的;被當成無用而扔掉的
food waste被丟棄或未被食用的食物;也指食物在生產、運送、販售、烹調或食用過程中所造成的浪費。

延伸學習

  • •「精準育種(precision-bred)」這個詞彙用來區分透過基因編輯進行的精準改變與會插入外來物種 DNA 的傳統基因改造(GMO);精準育種只進行自然界或傳統育種中可能發生的改變。
  • •CRISPR-Cas9 被稱為「分子剪刀」,能夠精確地關閉或修改特定基因(例如引發褐變的 polyphenol oxidase 酵素基因),而無需引進外來基因。

練習

測試你剛學到的內容。

  1. A British biotechnology company named Tropic has developed   bananas that keep their yellow color, taste, and texture for an extra day or two after being sliced.

  2. Why are these gene-edited bananas classified differently from typical genetically modified organisms (GMOs)?

  3. In the title, what does the expression 'move closer to' mean?

Source: The Guardian Science