Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea
Shiitake mushroom (<i>Lentinula edodes</i>) is commonly consumed worldwide and is cultivated in many farms in Korea using Chinese substrates owing to a lack of knowledge on how to prepare sawdust-based substrate blocks (bag cultivation). Consequently, issues related to the origin of the...
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MDPI AG
2020-09-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/9/9/1210 |
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| author | Ill-Min Chung So-Yeon Kim Jae-Gu Han Won-Sik Kong Mun Yhung Jung Seung-Hyun Kim |
| author_facet | Ill-Min Chung So-Yeon Kim Jae-Gu Han Won-Sik Kong Mun Yhung Jung Seung-Hyun Kim |
| author_sort | Ill-Min Chung |
| collection | DOAJ |
| description | Shiitake mushroom (<i>Lentinula edodes</i>) is commonly consumed worldwide and is cultivated in many farms in Korea using Chinese substrates owing to a lack of knowledge on how to prepare sawdust-based substrate blocks (bag cultivation). Consequently, issues related to the origin of the Korean or Chinese substrate used in shiitake mushrooms produced using bag cultivation have been reported. Here, we investigated differences in fatty acids (FAs) and stable isotope ratios (SIRs) in shiitake mushrooms cultivated using Korean and Chinese substrates under similar conditions (strain, temperature, humidity, etc.) and depending on the harvesting cycle. The total FA level decreased significantly by 5.49 mg∙g<sup>−1</sup> as the harvesting cycle increased (<i>p</i> < 0.0001); however, no differences were found in FAs between shiitake mushrooms cultivated using Korean and Chinese substrates. Linoleic acid was the most abundant FA, accounting for 77–81% of the total FAs during four harvesting cycles. Moreover, the SIRs differed significantly between the Korean and Chinese substrates, and the harvesting cycles resulted in smaller maximum differences in SIR values compared to those of the cultivation substrate origins. Our findings contribute to the identification of the geographical origin of shiitake mushrooms and may have potential applications in international shiitake-mushroom markets. |
| first_indexed | 2024-03-10T16:39:17Z |
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| id | doaj.art-efd90c151e3a4ab394ae70ed62e6e1e6 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T16:39:17Z |
| publishDate | 2020-09-01 |
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| series | Foods |
| spelling | doaj.art-efd90c151e3a4ab394ae70ed62e6e1e62023-11-20T12:11:22ZengMDPI AGFoods2304-81582020-09-0199121010.3390/foods9091210Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in KoreaIll-Min Chung0So-Yeon Kim1Jae-Gu Han2Won-Sik Kong3Mun Yhung Jung4Seung-Hyun Kim5Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, KoreaDepartment of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, KoreaNational Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 27709, KoreaNational Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 27709, KoreaDepartment of Food Science and Biotechnology, Graduate School, Woosuk University, Wanju-gun 55338, KoreaDepartment of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, KoreaShiitake mushroom (<i>Lentinula edodes</i>) is commonly consumed worldwide and is cultivated in many farms in Korea using Chinese substrates owing to a lack of knowledge on how to prepare sawdust-based substrate blocks (bag cultivation). Consequently, issues related to the origin of the Korean or Chinese substrate used in shiitake mushrooms produced using bag cultivation have been reported. Here, we investigated differences in fatty acids (FAs) and stable isotope ratios (SIRs) in shiitake mushrooms cultivated using Korean and Chinese substrates under similar conditions (strain, temperature, humidity, etc.) and depending on the harvesting cycle. The total FA level decreased significantly by 5.49 mg∙g<sup>−1</sup> as the harvesting cycle increased (<i>p</i> < 0.0001); however, no differences were found in FAs between shiitake mushrooms cultivated using Korean and Chinese substrates. Linoleic acid was the most abundant FA, accounting for 77–81% of the total FAs during four harvesting cycles. Moreover, the SIRs differed significantly between the Korean and Chinese substrates, and the harvesting cycles resulted in smaller maximum differences in SIR values compared to those of the cultivation substrate origins. Our findings contribute to the identification of the geographical origin of shiitake mushrooms and may have potential applications in international shiitake-mushroom markets.https://www.mdpi.com/2304-8158/9/9/1210shiitake mushroomcultivation substrateharvesting cyclefatty acidstable isotope ratio |
| spellingShingle | Ill-Min Chung So-Yeon Kim Jae-Gu Han Won-Sik Kong Mun Yhung Jung Seung-Hyun Kim Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea Foods shiitake mushroom cultivation substrate harvesting cycle fatty acid stable isotope ratio |
| title | Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea |
| title_full | Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea |
| title_fullStr | Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea |
| title_full_unstemmed | Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea |
| title_short | Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (<i>Lentinula edodes</i>) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea |
| title_sort | fatty acids and stable isotope ratios in shiitake mushrooms i lentinula edodes i indicate the origin of the cultivation substrate used a preliminary case study in korea |
| topic | shiitake mushroom cultivation substrate harvesting cycle fatty acid stable isotope ratio |
| url | https://www.mdpi.com/2304-8158/9/9/1210 |
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