Umbilicaria_esculenta
Umbilicaria esculenta
Species of lichen
Umbilicaria esculenta, the rock tripe or Iwa-take, is a lichen of the genus Umbilicaria that grows on rocks.
| Umbilicaria esculenta | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Umbilicariales |
| Family: | Umbilicariaceae |
| Genus: | Umbilicaria |
| Species: | U. esculenta |
| Binomial name | |
| Umbilicaria esculenta (Miyoshi) Minks (1900) | |
| Synonyms | |
| |
Two different types of polysaccharides are known to be the structural components, both a heteroglycan from the fungus and a glucan from the alga.[1] U. esculenta lichens have a thallus attached to the substrate with a central holdfast.[2] The thallus is also heteromerous (parts that are different in quality and number) and fully corticated (has a cortex and bark). Many of the Umbilicaria species are characterized by a veined or rugose thalline surface.[2]
Umbilicaria esculenta is a saxicolous lichen; it grows on rocks and is known widely as the "rock tripe". It is usually found on at high altitude in East Asia.[3]
U. esculenta is considered a delicacy in China, Korea, and Japan where it is eaten in dishes, soups, or in salads.[4]
It has been used as starvation food by Native Americans and early settlers.[4]
- Iwatake gathering at Kumano in Kishū, by Hiroshige II
- Korean pan-fried Umbilicaria esculenta
- Sone, Y., Isoda-Johmura, M., & Misaki, A. (1996). Isolation and chemical characterization of polysaccharides from Iwatake, Gyrophora esculenta Miyoshi. Bioscience, biotechnology, and biochemistry, 60(2), 213-215.
- Watson, R. R. (n.d.). Polyphenols in plants isolation, purification and extract preparation. Academic press, an imprint of Elsevier.
- Sun, Yanhong, et al. “The Polysaccharide Extracted from Umbilicaria Esculenta Inhibits Proliferation of Melanoma Cells through ROS-Activated Mitochondrial Apoptosis Pathway.” Biological and Pharmaceutical Bulletin, The Pharmaceutical Society of Japan, 1 Jan. 2018, https://www.jstage.jst.go.jp/article/bpb/41/1/41_b17-00562/_doc/-char/ja.
- Zhao, Y., Wang, M., & Xu, B. (2021). A comprehensive review on secondary metabolites and health-promoting effects of edible lichen. Journal of Functional Foods, 80, 104283
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