Frank Otto

Extraction of active ingredients from green tea (Camellia sinensis): Extraction efficiency of major catechins and caffeine

Amra Perva-Uzunalić, Mojca Škerget, Željko Knez et al. · Food Chemistry · 2005 · 472 citations

Agriculture, Food Science, Pharmacology +13

Reversed-phase HPLC determination of mangiferin, isomangiferin and hesperidin in Cyclopia and the effect of harvesting date on the phenolic composition of C. genistoides

Elizabeth Joubert, Frank Otto, Sabine Grüner et al. · European Food Research and Technology · 2003 · 67 citations

Life Sciences, Botany, Plant Biology +16

Determination of Extractability of Pine Bark Using Supercritical CO₂ Extraction and Different Solvents: Optimization and Prediction

Özlem Yeşil-Çeliktaş, Frank Otto, Sabine Gruener et al. · Journal of Agricultural and Food Chemistry · 2008 · 39 citations

Pharmacy, Food Science, Elemental Analysis +16

Organotransition-metal-modified sugars

Karl Heinz Dötz, Frank Otto, Martin Nieger · Journal of Organometallic Chemistry · 2001 · 30 citations

Supercritical carbon dioxide extraction of marigold at high pressures: comparison of analytical and pilot‐scale extraction

Dietmar Baumann, Sven Adler, Sabine Grüner et al. · Phytochemical Analysis · 2004 · 29 citations · Full text

Pharmacy, Plant Sciences, Chromatographic Analysis +14