agar deep culture

例句：

1. 1. Agar is a natural gelling agent used in food and beverages.
   琼脂是一种在食品和饮料中使用的天然凝胶剂。
2. 2. The chef used agar to make the sauce more thick and flavorful.
   厨师使用琼脂使酱汁更浓稠、更有风味。
3. 3. Agar can also be used as a stabilizer in cosmetics and pharmaceuticals.
   琼脂也可以作为化妆品和药品中的稳定剂。