Myrtaceae family, natively distributed from southern Mexico to eastern Venezuela and
Ecuador and commonly known as" Cas''," Costa Rican guava" or “Sour Guava”. The “Cas”
produces a fruit with a rather distinctive acidic flavor and has bioactive compounds with
biological potential equal or greater than common Guava; is considered an indigenous crop
in Costa Rica with characteristics as a functional food untapped. This species has not been …