What quality does the unripe or green version of the rose apple possess that makes it an excellent candidate for sharp preparations like pickles?

Answer

Astringent quality

The unripe or green version of the fruit carries an astringent quality, which suits its use in sharp, tangy preparations such as pickles and chutneys.

What quality does the unripe or green version of the rose apple possess that makes it an excellent candidate for sharp preparations like pickles?
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