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VOL. 8, ISSUE 4 (2023)
Effect of different harvest period on the yield, proximate, mycochemical Composition of Pleurotus pulmonarius
Authors
Ndugbu M N, Onuegbu N C, Omeire G C, Nwokeke B C
Abstract
Mushrooms are cultivated
for their nutritional attributes and potential application in industries
especially in the food and pharmaceutical industry. Pleurotus pulmonarius
is an edible mushroom with a high nutritive value and flavour. The effect of
different harvest period (day 2, 3 & 4) on the yield, proximate, aroma and
mycochemical composition of Pleurotus pulmonarius was determined. The
mushroom was cultivated on three agro-waste materials in three replicates,
harvested, and prepared for analysis. A total number of 42, 63 and 65 fruit
bodies were harvested from the three groups (days 2, 3 and 4) respectively. Cap
diameter (cm) of fruit bodies were in the range of 2.54 to 4.43 and increased
with development. Fruit body weight followed a similar trend at 2.61g for fruit
bodies from day 2, 4.62g for those of day 3 and 9.17g for day 4. Mean number of
fruit bodies (NFB) from the three growth stages were not significantly
different at p≥0.05, while significant differences (p ≤ 0.05) were observed in
the mean Cap Diameter and weight. The result of proximate analysis showed that
the nutrient content of the samples varied. Total dietary fibre (TDF) of fruit
bodies decreased with time from day 2(13.5%), day 3(12.54%), and day 4(11.29%).
Carbohydrate also showed similar decrease with time 46.36 to 50.77%. The
protein contents increases with developmental stages 21.05, 23.28 and 25.60%
respectively. Ash and moisture content of fresh sample also increased with time
from 8.46, 9.20 to 10.75%and 87.74, 88.66 and 87.83% for ash and moisture
respectively.. Fat content of fruit bodies were not significantly
different (p≥0.05) across the various time treatment levels. The result of the
mycochemical analysis showed that alkaloid, flavonoid, phenol, saponin and
tannin content increases significantly (p≤0.05) with increase in developmental
stages. Aroma intensity was highest with 6.38 for day 3, 5.03 for day 4 and
3.96 for day 2.The results obtained from this study revealed that mushrooms (Pleurotus
pulmonarius) harvested at different developmental stages showed significant
difference (p≤0.05) in their physical properties, nutrient and mycochemical
contents.
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Pages:34-39
How to cite this article:
Ndugbu M N, Onuegbu N C, Omeire G C, Nwokeke B C "Effect of different harvest period on the yield, proximate, mycochemical Composition of <i>Pleurotus pulmonarius</i>". International Journal of Food Science and Nutrition, Vol 8, Issue 4, 2023, Pages 34-39
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