Fatty Acids and Stable Isotope Ratios in Shiitake Mushrooms (Lentinula edodes) Indicate the Origin of the Cultivation Substrate Used: A Preliminary Case Study in Korea
| Autor: | Won-Sik Kong, Ill-Min Chung, So-Yeon Kim, Jae-Gu Han, Mun Yhung Jung, Seung-Hyun Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Health (social science)
Linoleic acid cultivation substrate Plant Science lcsh:Chemical technology 01 natural sciences Health Professions (miscellaneous) Microbiology Article chemistry.chemical_compound harvesting cycle 0404 agricultural biotechnology lcsh:TP1-1185 Food science shiitake mushroom chemistry.chemical_classification Mushroom biology Stable isotope ratio 010401 analytical chemistry Fatty acid Substrate (chemistry) 04 agricultural and veterinary sciences biology.organism_classification 040401 food science 0104 chemical sciences stable isotope ratio Lentinula chemistry visual_art visual_art.visual_art_medium Sawdust fatty acid Food Science Shiitake mushrooms |
| Zdroj: | Foods Volume 9 Issue 9 Foods, Vol 9, Iss 1210, p 1210 (2020) |
| ISSN: | 2304-8158 |
| DOI: | 10.3390/foods9091210 |
| Popis: | Shiitake mushroom (Lentinula edodes) 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&minus 1 as the harvesting cycle increased (p < 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&ndash 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. |
| Databáze: | OpenAIRE |
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