An Absorption Mechanism for the Decolorization of Melanoidin byRhizoctoniasp. D-90
| Autor: | Poonsook Atthasampunna, Shinsaku Hayashida, Praphaisri Somchai, Prakitsin Sihanonth, Suntud Sirianuntapiboon |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Absorption (pharmacology)
biology fungi Organic Chemistry Melanoidin food and beverages General Medicine Fungi imperfecti equipment and supplies biology.organism_classification Rhizoctonia Applied Microbiology and Biotechnology Biochemistry Analytical Chemistry Pigment Membrane Cytoplasm visual_art Botany visual_art.visual_art_medium Food science Molecular Biology Mycelium Biotechnology |
| Zdroj: | Bioscience, Biotechnology, and Biochemistry. 59:1185-1189 |
| ISSN: | 1347-6947 0916-8451 |
| DOI: | 10.1271/bbb.59.1185 |
| Popis: | Rhizoctonia sp. D-90 decolorized molasses melanoidin medium and a synthetic melanoidin medium by 87.5% and 84.5%, respectively, under experimental growth conditions. Mycelia grown in solutions of melanoidin turned dark brown. However, the melanoidin (dark brown in color) could be eluted from the mycelia by washing in a solution of NaOH, and the maximum yield of melanoidin from mycelia reached 96.1 %. Mycelia grown in potato dextrose medium did not have any electron-dense materials in the cytoplasm or around the cell membrane, but when such mycelia were transferred to melanoidin media, abundant electron-dense material appeared in the cytoplasm and around cell membranes. Subsequently, the electron-dense materials disappeared when the mycelia were returned to the potato dextrose medium for further growth. The mechanism of decolorization of melanoidin by Rhizoctonia sp. D-90 involved absorption of the melanoidin pigment by the cells as a macromolecule and its intracellular accumulation in the cytoplasm and ar... |
| Databáze: | OpenAIRE |
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