In this study, guava fruits cv. Paluma were cut in two parts and submitted to different processing condition before storage at -20ºC. In the first process the fruit pulp were tritured and conditioned in polyethylene bags with 40µm of thickness, frozen and stored at -20ºC in refrigerated chamber; and in the second process the slices of the pulp fruit were treated with hot-water at 98ºC by four minutes, dried and conditioned in polyethylene bags with 40µm of thickness, frozen and stored at -20ºC. The pulp quality was avaliable throught the pH, ascorbic acid content, total soluble solids, titrable acidity, general appearance, firmness and color. The two process used were able to preserve the pulp with good aspect until 18 week. The content of ascorbic acid decreased, principally, in the tritured pulp fruits. The texture and flavor was affected by the storage time. The two procedures studied as a technique for the preservation of pulp of guava fruits by food industry can be used during harvest time being an alternative to avoid postharvest loses.
Psidium guajava; storage; quality and shelf life
