Enterococcus faecalis and Pseudomonas aeruginosa behaviour in frozen watercress (Nasturtium officinale) submitted to temperature abuses

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Enterococcus faecalis and Pseudomonas aeruginosa behaviour in frozen watercress (Nasturtium officinale) submitted to temperature abuses

Watercress is an herb traditionally co consumers. However, pathogenics re new product. In this study watercr aeruginosa ATCC 27853 and Enterococ after blanching, frozen storage and blanching caused a reduction of abo (TVC) and about 1.7 and 1.3 log cfu respectively. P. aeruginosa seemed t faecalis. After 3 months, TVC was stil of product. At the end of the study, injury of the microorganisms. T...

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Effect of cold chain temperature abuses on the quality of frozen watercress (Nasturtium officinale R. Br.)

* Corresponding author. Tel.: +351 22 5580058; fax E-mail addresses: [email protected] (R.M.S. Cruz), m [email protected] (C.L.M. Silva). t of temperature abuses on the colour and vitamin C conturtium officinale R. Br.). c (AA) and dehydroascorbic (DHAA) acids, and colour, evaluated along a plan of temperature abuses, based on e period. A comparison between the hue angle and AA kinetic parameters ...

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Biochemical and colour changes of watercress (Nasturtium officinale R. Br.) during freezing and frozen storage

The effects of water blanching, freezing, and frozen storage during 400 days at three different temperaress (N ntent l on colo l value. es in co degrad and hu cessfull kept c tures ( 7, 15 and 30 C), on waterc chlorophyll degradation, vitamin C co blanching induced significant changes activity was reduced 85% from its initia however, promoted significant differenc age, ascorbic acid (AA) and PO...

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Investigation of antioxidant properties of Nasturtium officinale (watercress) leaf extracts.

The objective of this study was to examine the in vitro and in vivo antioxidative properties of aqueous and ethanolic extracts of the leaf of Nasturtium officinale R. Br. (watercress). Extracts were evaluated for total antioxidant activity by ferric thiocyanate method, total reducing power by potassium ferricyanide reduction method, 1,1-diphenyl-2-picrylhydrazyl (DPPH*) radical scavenging activ...

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Watercress (Nasturtium officinale R. Br.) Minimally Processed: Effect of Storage Temperature and Different Films of Packaging

Watercress is a leafy vegetable of the family Brassicaceae that grows in and around water, it has a short shelf life (approximately seven days) and it is consumed raw or steamed. The objective of this work was to study the effect of packaging film and different storage temperature on the postharvest quality of watercress minimally processed. Treatments were: packed with plain film (PD961EZ, 31m...

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ژورنال

عنوان ژورنال: International Journal of Refrigeration

سال: 2009

ISSN: 0140-7007

DOI: 10.1016/j.ijrefrig.2008.08.002