DEDICATED DRYING MACHINES MANUFACTURER
Conventional air drying is one of the most frequently used methods for mushroom dehydration,
which involves thermal and/or chemical pretreatment and drying at temperature maintained
between 50 and 70 0 C. Due to long drying time and overheating of surface during hot air drying,
the problems of darkening in colour, loss in flavour and decrease in rehydration ability occur .
Freeze drying produces a high quality product, but being an expensive process, its application
for mushroom drying is limited.
Recently, vacuum drying (VD) has been developed as an alternative to dry heat-sensitive
products since it can combine the advantages of drying at reduced temperature. The low
temperature and fast mass transfer conferred by vacuum combined with rapid energy transfer
by heating generates very rapid, low temperature drying and thus it has the potential to
improve energy efficiency and product quality.
The acceptance of a dehydrated product by consumers depends on important characteristics of
the product such as structural, textural, sensory, microbiological and rehydration properties.
DRYING MATHODS:
PHASE DIAGRAM OF WATER
Mushroom slices of 7.5 mm thickness as well as whole button mushrooms were dried to a final
moisture content of about 6% using vacuum drying and hot-air drying method.
Dedicated Analytical Solutions
Corporate Office
KDM Analytical
B-2/41 First Floor, Rohini
Sector-16, Delhi-110089
India
Tel
+91-9643480893
+91-9540666954
Fax
+91- 22612722
E -mail [email protected]
Application Lab
D-198, Mundka Industrial Area
Delhi-110081
web www.kdmanalytical.com