protocevine

例句：

1. 1. The protocevine in the grapes is believed to have anti-aging benefits.
   葡萄中的原花青素被认为具有抗衰老的好处。
2. 2. The protocevine in red wine has been shown to reduce inflammation.
   红酒中的原花青素已被证明可以降低炎症。
3. 3. Studies have found that protocevine may help protect against certain types of cancer.
   研究发现，原花青素可能有助于预防某些类型的癌症。