UPM Institutional Repository

Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging


Wan Mohtar, Wan Abd Al Qadr Imad and Klaus, Anita and Cheng, Acga and Aiga Salis, Shardana and Abdul Halim-Lim, Sarina (2019) Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging. British Food Journal, 121 (8). pp. 1871-1883. ISSN 0007-070X


Purpose–The purpose of this paper is to identify the strain of oyster mushroom (OM) Pleurotus sapidus cultivated in a local (commercial) farm, and to generate a total quality index (TQI) on the strain using different modified atmosphere packaging (MAP) gas mixtures.Design/methodology/approach–A phylogenetic tree was constructed using the MEGA software to identify the specific strain ofP. sapidus grown in a local farm. The effects of MAP on fresh fruiting bodies of the identified strain were determined under three conditions: high carbon dioxide packaging (HCP: 20 per centCO2, 15 per cent O2), low carbon dioxide packaging (LCP: 2 per cent CO2, 30 per cent O2) and high nitrogen packaging (HNP: 85 per cent N2, 15 per cent O2). All samples were stored at 4oC for up to ten days, and subjected to total phenolic content (TPC), colour retention (CR) and sensory analysis. Quality parameters such as chewiness and odour were used to obtain the TQI.Findings–From the phylogenetic analysis, a new strain (P. sapidusstrain QDR) with 99 per cent similarity to P. sapidus was identified. Among the three MAP treatments, HCP recorded the highest TPC (2.85 mg GAE/g)and CR (60.36) after ten days, although only its CR was significantly different (po0.05) from the control.Feedback from 30 sensory panellists indicated that both HCP and LCP were generally more effective inretaining the colour–odour of OM. The optimum TQI for HCP was obtained based on the observed parameters,which is useful for the large-scale packaging of OM.Originality/value–Scientific evidence has revealed that packaging trend for commercially grown OM affects consumer’s acceptance.

Download File

[img] Text (Abstract)
Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging.pdf

Download (65kB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
DOI Number: https://doi.org/10.1108/BFJ-06-2018-0408
Publisher: Emerald Publishing Limited
Keywords: Modified atmosphere packaging; Oyster mushroom; Phylogenetic analysis; Pleurotus sapidus; Total quality index
Depositing User: Mr. Sazali Mohamad
Date Deposited: 16 Oct 2020 09:41
Last Modified: 16 Oct 2020 09:41
Altmetrics: http://www.altmetric.com/details.php?domain=psair.upmedu.my&doi= 10.1108/BFJ-06-2018-0408
URI: http://psasir.upm.edu.my/id/eprint/82656
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item