南方周末:肖赛结束后,你是不是几乎一直在路上?
Guar gum, a plant colloid, costs less than agar and is better suited for growing thermophilic bacteria, but is also more difficult to handle, being more viscous and less transparent. The bacterial polysaccharide xanthan is cheaper as well but forms weaker jellies that, as with carrageenan, might result in puncturing its surface. Other colloids, like alginate (from brown seaweed) and gellan gum (from a bacterium), don’t set solely based on temperature and require additives for gelation. These additives might interfere with microbial growth and make the preparation of those jellies less handy than agar plates.
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在美國生活的四年間,關恆形容自己過著比較低調的生活,家人不在身邊,也沒有太多認識的朋友,很多時候都是一個人獨自生活、處理各種問題與狀況。
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FT Edit: Access on iOS and web
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