The paper is presented in Ukrainian. Similar articles [Mycobiota of Quercus robur L. from the oak forest in the Zhytomyr region]. Kurchenko IM, Sokolova OV, Orlov OO, Iur'ieva OM, Ivaniuk TM. Kurchenko IM, et al. [pubmed.ncbi.nlm.nih.gov]

* More information on oak side effects Oak toxicity and hazards Oak leaves and fruits (acorns) Toxic principles : rich in tannins The major toxicity of oak is given by the high tannin content of the bark (up to 20%), which is present in smaller proportions [botanical-online.com]

• Alternaria

  Cosmopolitan and non-specific species Acremonium sp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma harzianum, T. viride and specific ones - Phoma sp. and Phomopsis sp. were isolated from inner acorn tissues. [pubmed.ncbi.nlm.nih.gov]

Treatments for internal use should not be prolonged for more than 4 days. External use application should not continue more than 15 to 20 days. Essential oil baths should not be performed when the patient has infections, fever or heart problems. [botanical-online.com]

These preparations should be taken after meals to prevent digestive problems, while respecting the patterned dose. Oak should never be taken in case of gastritis or digestive ulcers. [botanical-online.com]