Root yield and resveratrol content of Fallopia japonica grown in Finland

vokMTT Mikkel

Variation in concentration of oenothein B in different samples of cultivated Epilobium angustifolium L.

vokMTT Mikkel

Comparative analysis of European and Russian Rhodiola rosea samples

vokEKO/Karila, PA

Phytochemical analysis of fruit of Russian sort Hippophae rhamnoides, cultivated in Finland and food products, containing them

vokMTT Mikkel

Comparative stability of dimeric and monomeric pigments extracted from sea urchin Strongylocentrotus droebachiensis

Ultraviolet–visible spectroscopy and UPLC–DAD–MS were used for analysis of stability of ethanol solutions of ethylidene-6,6′-bis(2,3,7-trihydroxynaphthazarin) (ENZ), spinochrome dimer (SDM) and spinochrome D (SD) that were isolated from Strongylocentrotus droebachiensis. In the freshly prepared solution, the concentration of ENZ at pH 6.0 was at 6 fold less comparing to pH 1.6. The increase of pH up to 4.0 resulted to increase of SD concentration and to decrease of SDM concentration. After 48 h storage, both dimers showed the highest stability at pH 1.6, while the elevation of the pH solution up to 6.0 activates degradation of SDM and ENZ at 1.3 and 3.6 fold correspondingly. The concentration of SD after 48 h storage at the pH 1.6 was at two-fold less comparing to the initial concentration, and at the pH 6.0–at 4 fold less. This study contributes to increasing the knowledge on the stability of the spinochrome pigments. © 2017 Informa UK Limited, trading as Taylor & Francis Group

Experiences with fermentation on Epilobium angustifolium shoots

vokMTT Mikkel

Biomass production of Epilobium parviflorum and Epilobium hirsutum in cultivation

vokMTT Mikkel