J da N Nogueira

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Objective of this research was to find alternative methods for the control of polyphenol oxidase (PPO) activity in fruits and vegetables with the purpose of reducing or eliminating the use of SO2 for this purpose. Interactions between the use of ascorbic acid, citric acid, EDTA, sodium metabisulphite and heat treatment (70 degrees C for 2 min) in the(More)
Laundry detergent pod (LDP) exposures in children have resulted in several referrals to the emergency department. Signs and symptoms can include gastrointestinal symptoms (vomiting, drooling), neurological symptoms (depressed sensorium), or metabolic changes (lactic acidosis). There is limited literature on esophageal injury following LDP ingestions. We(More)
The retention of ascorbic acid, beta-carotene and sensory properties of freeze-dried red guava pulp stored during 18 months in hermetically sealed brown glass flasks, at room temperature (ca. 25 degrees C) was studied. The results showed that the losses during freeze-drying were of 8.13% for ascorbic acid and 0.63% for beta-carotene. During storage more(More)
A study was conducted on calcium chloride treatments of canned okra acidified by adding either acetic, citric, lactic, malic or tartaric acids or by lactic fermentation. The quality of the processed okra was determined by physical, chemical, microbiological and sensory analyses after a two month storage period at room temperature. The results indicated the(More)
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