unripe

In early July, after he shared the news with a reporter from a local newspaper — which ran a story headlined “Not in Southeast Asia but in Seoul… Banana plant bears fruit at a weekend farm” — the unripe bananas became a small sensation overnight.

On a hot morning in mid-July at the community farm, a patch of lush green ringed by high-rise apartments, Oh inspected his bananas’ progress: still unripe but noticeably fatter.

Some Chinese consumers have complained that durians are arriving unripe.

"For example, an unripe, hardened banana contains a high concentration of resistant starches, which is very difficult for humans to break down. However, ripened bananas are soft in texture due to their higher concentration of sugars and easier for humans to chew."

Leaves, twigs and unripe berries contain toxins that can cause nausea, vomiting or diarrhea.