Impact of Substrate Disinfection on Yield and Efficiency of Drying Methods for Quality Preservation of Elm Oyster Mushroom Hypsizygus ulmarius (Agaricomycetes) and Its Medicinal Value
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引用次数: 0
Abstract
This paper evaluated the effect of different substrate disinfection methods viz. hot water treatment, autoclaving and steam pasteurization at 100°C, 121°C and 65°C respectively on yield of Hypsizygus ulmarius and effects of sun drying, oven drying and cabinet drying techniques at 25±2°C, 40±2°C and 50±2°C respectively on nutritional qualities of H. ulmarius. Hot water treated substrate gave higher yield (215.36±1.49 g) and biological efficiency (71.78 %) as compared to autoclaved (194.45±3.36 g and 64.81 %) and steam pasteurized substrate (194.45±3.36 g and 65 .28 %). The different drying methods used for drying the fruit bodies significantly influenced the nutrient profile of H. ulmarius. Highest moisture (6.95 %), fiber (16.94 %) and protein content (22.49 %) was retained in sun dried fruit bodies whereas ash content (5.52 %) was highest for oven dried fruit bodies. Cabinet dried fruit bodies showed significantly higher percentage of fats (1.82 %) and carbohydrates (53.58 %). In the DPPH assay the cabinet dried fruit bodies showed the highest antioxidant activity followed by sun dried and oven dried fruit bodies with respective IC50 values as 104.21±0.14, 117.17±0.07 and 163.57±0.02. The drying methods proved to be effective in controlling the bacterial growth for a period of two months after which significant bacterial growth was noted.
期刊介绍:
The rapid growth of interest in medicinal mushrooms research is matched by the large number of disparate groups that currently publish in a wide range of publications. The International Journal of Medicinal Mushrooms is the one source of information that will draw together all aspects of this exciting and expanding field - a source that will keep you up to date with the latest issues and practice. The International Journal of Medicinal Mushrooms published original research articles and critical reviews on a broad range of subjects pertaining to medicinal mushrooms, including systematics, nomenclature, taxonomy, morphology, medicinal value, biotechnology, and much more.