Evaluation of the Effect of Biological Coating Containing Zinc Oxide Nanoparticles and Button Mushroom Extract on Increasing the Shelf Life of Strawberries During Storage
Paper ID : 1398-NICAME1402
Authors:
sedna salimi nejad *1, kimia askari2, asal tavajjoh1, setayesh nasri1
1farzanegan 1 highschool karaj
2farzanegan 3 highschool tehran
Abstract:
Strawberry is a valuable product that is highly perishable due to high humidity, and
during the short storage period, most of it spoils by 5-50%. Soft texture and microbial
contamination (bacterial and fungal) are among the effective factors in reducing this
valuable product's edible quality and shelf life during cold storage. So far, many studies
have been conducted with the aim of increasing its durability. One of the ways to increase
shelf life is by using chemical compounds and fungicides, which adversely affect the
health of consumers and the environment. In recent years, edible coatings have expanded
as a safe method. The strawberry fruit was prepared and synthesized with an edible film
composed of hydroxypropyl methylcellulose with different percentages (0.0, 0.2, 0.4,
0.6%) of zinc oxide nanoparticles. Then button mushroom extract was prepared and with
microbial contamination (number of mold and total aerobic mesophilic bacteria),
physicochemical characteristics (weight reduction, firmness and color) of strawberry
fruits coated with zinc oxide nanoparticles were synthesized. Also, button mushroom
extract was compared to the control on the 5th and 14th days of storage.
The results showed that biological coatings containing zinc oxide nanoparticles
synthesized with button mushroom extract in strawberry samples delayed the growth of
microorganisms. They also prevent weight loss and better color and maintain firmness
compared to control samples up to 14 days after the beginning of storage
Keywords:
biological coating durability nanoemulsion button mushroom extrasct strawberry
Status : Paper Accepted