Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging
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 p...
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Emerald
2019
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| author | Wan-Mohtar, Wan Abd Al Qadr Imad Klaus, Anita Cheng, Acga Salis, Shardana Aiga Abdul Halim-Lim, Sarina |
| author_facet | Wan-Mohtar, Wan Abd Al Qadr Imad Klaus, Anita Cheng, Acga Salis, Shardana Aiga Abdul Halim-Lim, Sarina |
| author_sort | Wan-Mohtar, Wan Abd Al Qadr Imad |
| collection | UM |
| description | 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 of P. 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 cent CO2, 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 4 oC 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. sapidus strain 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 (p<0.05) from the control. Feedback from 30 sensory panellists indicated that both HCP and LCP were generally more effective in retaining 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. © 2019, Emerald Publishing Limited. |
| first_indexed | 2024-03-06T05:59:06Z |
| format | Article |
| id | um.eprints-23180 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:59:06Z |
| publishDate | 2019 |
| publisher | Emerald |
| record_format | dspace |
| spelling | um.eprints-231802019-12-02T09:13:40Z http://eprints.um.edu.my/23180/ Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging Wan-Mohtar, Wan Abd Al Qadr Imad Klaus, Anita Cheng, Acga Salis, Shardana Aiga Abdul Halim-Lim, Sarina Q Science (General) QH Natural history QR Microbiology 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 of P. 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 cent CO2, 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 4 oC 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. sapidus strain 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 (p<0.05) from the control. Feedback from 30 sensory panellists indicated that both HCP and LCP were generally more effective in retaining 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. © 2019, Emerald Publishing Limited. Emerald 2019 Article PeerReviewed Wan-Mohtar, Wan Abd Al Qadr Imad and Klaus, Anita and Cheng, Acga and Salis, Shardana Aiga 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, DOI https://doi.org/10.1108/BFJ-06-2018-0408 <https://doi.org/10.1108/BFJ-06-2018-0408>. https://doi.org/10.1108/BFJ-06-2018-0408 doi:10.1108/BFJ-06-2018-0408 |
| spellingShingle | Q Science (General) QH Natural history QR Microbiology Wan-Mohtar, Wan Abd Al Qadr Imad Klaus, Anita Cheng, Acga Salis, Shardana Aiga Abdul Halim-Lim, Sarina Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging |
| title | Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging |
| title_full | Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging |
| title_fullStr | Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging |
| title_full_unstemmed | Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging |
| title_short | Total quality index of commercial oyster mushroom Pleurotus sapidus in modified atmosphere packaging |
| title_sort | total quality index of commercial oyster mushroom pleurotus sapidus in modified atmosphere packaging |
| topic | Q Science (General) QH Natural history QR Microbiology |
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