Avaliação físico-química de polpas de frutas comercializadas no município de Cuité - Paraíba.

Abstract

Currently it has been observed a large consumption of fruit pulp studies are needed that can evaluate the quality of these foods presenting greater safety for human consumption. The present study aimed to evaluate the quality of frozen fruit pulp traded in Cuité-PB, verifying the adequacy of the same Quality and identity standards (PIQ) currently in force in the brazilian legislation, and whether they are in accordance with the compulsory labelling, checking the content of vitamin C also present. Physical-chemical analyses were carried out of the pulps and the labels of five different samples of frozen fruit pulp of a single trade mark; Acerola, hog plum, cashew, mango and passion fruit. The analyses performed were: pH, total soluble solids (SST), total titratable acidity (ATT), SST/ATT, vitamin C, total solids (ST) and humidity, being all in triplicate. All the pulps are according to the established by the RDC No. 259/2002, which regulates the labelling of packaged foods and the RDC No. 360/2003 governing nutrition labelling. The pH of the pulp of acerola, hog plum, cashew, mango and passion fruit presented in accordance with the regulated values for PIQ. With respect to vitamin C all samples were evaluated according to the PIQ. The fruit pulp that showed higher levels of vitamin C were those of acerola and cashews, with 1.183,00mg/100g and 261,21mg/100 g respectively. The ST and ATT of acerola pulp, hog plum, cashew and mango are according to minimum and maximum standard required by the MAPA. The SST of the pulp of acerola, cashew and mango are according to the required standards, but the passion fruit puree and hog plum didn't obey the established minimum content. The study indicated that some samples are at odds regarding the SST, ATT and ST, presenting lower values than those recommended.