Development and Performance Investigation of an Inflatable Solar Drying Technology for Oyster Mushroom
Open Access
- 10 August 2020
- Vol. 13 (16), 4122
- https://doi.org/10.3390/en13164122
Abstract
We developed an inflatable solar dryer for mushroom drying, which was adapted from the Solar Bubble DryerTM originally designed for paddy drying. The improved dryer with an added perforated elevated floor ensured the quality without any requirement of mixing or turning of the mushrooms during drying. Its drying performance and economic feasibility were evaluated through determination of the drying parameters including moisture content (MC) reduction, mushroom quality, energy efficiency, greenhouse gas emissions, and cost-benefits ratio. Mushroom MC was reduced from 90% down to 40–60% within 2–4 h, corresponding to the drying rate at this stage of 10–20% h−1. At the next stage, it took about 4–6 h corresponding to a drying rate of 2–10% h−1 to reach the required product MC of 8–10%. The color of the dried mushrooms still remained white-cream. The drying process required 4.57 MJ, emitted 0.33 kg CO2e, and required an input cost of 1.86 $US kg of dry product. For the specific case in the Philippines, this can generate a net profit of 468–1468 $US−1 year−1 and the investment will break even in 1.3–4.0 years corresponding to the selling price of dry mushroom of 10–12 $US kg−1. The study developed a solution to improve the solar bubble dryer and verified its drying process for mushroom drying at farm scale. It would add a significant value to farmers’ income as well as a diversified source of nutrient-rich food.This publication has 23 references indexed in Scilit:
- Energy efficiency of rice production in farmers’ fields and intensively cropped research fields in the PhilippinesField Crops Research, 2014
- Thin-layer modeling of convective and microwave-convective drying of oyster mushroom (Pleurotus ostreatus)Journal of Food Science and Technology, 2013
- Yield and size of oyster mushroom grown on rice/wheat straw basal substrate supplemented with cotton seed hullSaudi Journal of Biological Sciences, 2013
- Mushroom drying with solar assisted heat pump systemEnergy Conversion and Management, 2013
- Mushroom dehydration in a hybrid-solar dryerEnergy Conversion and Management, 2013
- Quality Characteristics of Bread Made from Wheat and Nigerian Oyster Mushroom (Pleurotus plumonarius) PowderPakistan Journal of Nutrition, 2011
- 2011 Compendium of Physical ActivitiesMedicine & Science in Sports & Exercise, 2011
- Design and performance evaluation of a new hybrid solar dryer for bananaEnergy Conversion and Management, 2010
- Crop drying by indirect active hybrid solar – Electrical dryer in the eastern Algerian Septentrional SaharaSolar Energy, 2009
- The World Mushroom Industry: Trends and Technological DevelopmentInternational Journal of Medicinal Mushrooms, 2006