Pu-erh tea,SEM
Bildnummer 12046397
| Dark Pu-erh (also spelled Pu'er) tea is produced in China using Aspergillus foetidus var. acidus to ferment the tea leaves. Unlike Aspergillus niger,which it resembles,A. acidus does not contain mycotoxins ochratoxin A and fumonisins B2 and B4. The production is a lengthy process: e.g. a ripened Pu'er produced in early 2004 was pressed in the winter of 2004/2005,and appeared on the market between late 2005 and early 2006. The tea has in vitro antimicrobial properties against many microorganisms. Enhanced SEM shows a stoma in a darkened tea leaf as well as fungal hyphae in the form of a web on the top of the tea leaf. Image width: 71.1 micrometers. Magnification: 1405x if the image is printed 10 cm wide | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / SciMAT |
| Bildgröße: | 3232 px × 2420 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: |
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