Effect of Pre-Treatments and Drying Methods on the Chemical Quality and Microbial Density of Wild Edible Oyster Mushroom
Journal Title: Archive of Food and Nutritional Science - Year 2017, Vol 1, Issue 1
Abstract
This study was carried out to evaluate the effect of pretreatments and drying methods on the chemical quality and microbial density of wild edible oyster mushroom. The mushroom samples were pretreated by steeping in 0.5% citric and sodium metabisulphite at room temperature for 10 minutes before being subjected to sun and cabinet drying until a constant weight was reached. The dried samples including the control samples (Samples not pretreated with chemicals) were evaluated for proximate, mineral composition and microbial density. The proximate analysis (protein, ash, fat, moisture and fibre) showed that untreated mushroom samples (both sun and cabinet dried) had the overall best results followed by samples pretreated with 0.5% sodium metabisulphite while samples pretreated with 0.5% citric acid had the lowest values. The mineral analysis (calcium, sodium, magnesium and potassium) of the mushroom samples followed the same trend as the proximate analysis. The microbial density of the samples showed that samples pretreated with 0.5% citric acid had the lowest count followed by samples pretreated with 0.5% sodium metabisulphite while the untreated samples had the highest microbial density. This implies that pretreatment with citric acid and sodium metabisulphite reduced the microbial density which may invariably extend the storage life of the edible oyster mushroom.
Authors and Affiliations
TA Ibrahim, KM Adaramola-Ajibola, AT Adesuyi, SO Olanrewaju, EB Akinro
Keywords
Related Articles
- EP ID EP542061
- DOI 10.29328/journal.afns.1001007
- Views 84
- Downloads 0
Effect of drying methods on the physicochemical properties and Fatty Acid composition of Moringa Seeds Oil
Effect of drying methods (sun-drying and cabinet oven drying) on the physicochemical properties and fatty acid composition of oils extracted from moringa seeds was investigated. Oil from the seeds was extracted using sol...
Lemongrass tea consumption and changes in Acid-Base Balance and Electrolyte homeostasis
The consumption of dietary herbs and supplements may be associated with several physiological consequences including, but not limited to disturbances of acid-base homeostasis, minerals and electrolytes wasting, gastroint...
Evaluation of Clupeids and Danish fish meal based diets on the growth of African catfish, Clarias gariepinus fingerlings
Two experimental feeding trials were conducted concurrently to study the growth response of African catfish Clarias gariepinus fingerlings to graded levels (0, 5, 10, 15 or 20%) of clupeids in Danish fish meal (DFM) base...
Development and quality evaluation of Jam from Watermelon (Citrullus Lanatus) and Pawpaw (Carica Papaya) juice
The seasonal nature of most fruits available in the market coupled with inadequate storage and processing facilities has limited their consumption by majority of the people in the country. Jams made from fruits are good...
Nutritional and structural evaluation of selected Black gram varieties for preparation of Fermented Thick Pancake (Dosa)
The quality characteristics of selected black gram varieties viz., VBN 5, VBN 7, ADT 3, T9 and CO 6 and were evaluated for their suitability for the preparation of thick pancake. The foaming stability and foaming capacit...