1. Valorization of post-distillation Helichrysum italicum biomass for functional beverage infusions : aSaša Kenig, Alenka Baruca Arbeiter, Alena Stupar, Aleksandra Mišan, Ana Zugic, Ivana Nesić, Vanja Tadić, Dunja Bandelj, Zala Jenko Pražnikar, Ana Petelin, 2026, original scientific article Abstract: Helichrysum italicum (HI) is an aromatic plant primarily cultivated for essential oil production, though its water extracts also have known health effects. Distillation produces large amounts of plant residue that still contains water-soluble bioactive polyphenols. This study compared the chemical composition of infusions prepared from HI before and after distillation and evaluated their short-term physiological effects. To improve sensory acceptability, HI was blended with the herbal mixture Vitalplant. HPLC analysis showed that most water-soluble polyphenols remain extractable from the post-distillation residue, resulting in comparable compositions of the infusions and antioxidative potential. In a crossover trial, participants consumed either Vitalplant alone (N = 20) or mixtures with distilled (N = 21) or undistilled HI (N = 22) for one week. The beverages were well accepted, with the distilled HI formulation showing higher score than the one containing undistilled HI. All beverages were well tolerated, with no gastrointestinal or adverse biochemical effects. These findings support the feasibility of reusing post-distillation HI biomass for beverage production, providing a potential approach for biomass valorization in line with circular bioeconomy principles.
Keywords: Helichrysum italicum, distillation, polyphenols, functional beverage, sensory evaluation, tolerability, circular economy
Published in RUP: 15.10.2026; Views: 81; Downloads: 0
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2. Extraction and identification of polyphenols from spruce bark using HPLC-DAD-ESI-MS/MSEsakkiammal Sudha Esakkimuthu, Ana Miklavčič Višnjevec, Petra Jenuš, Aleksander Učakar, Črtomir Tavzes, David Brian DeVallance, Andreja Kutnar, Kelly Peeters, 2021, published scientific conference contribution abstract Keywords: polyphenols, spruce bark, paper industry
Published in RUP: 26.10.2021; Views: 4017; Downloads: 15
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3. Helichrysum italicum ssp. italicum infusion promotes fat oxidation in hepatocytes and stimulates energy expenditure and fat oxidation after acute ingestion in humans : a pilot studySaša Kenig, Katja Kramberger, Ana Petelin, Dunja Bandelj, Alenka Baruca Arbeiter, Ana Miklavčič Višnjevec, Kelly Peeters, Nina Mohorko, Karin Šik Novak, Zala Jenko Pražnikar, 2021, original scientific article Keywords: Helichrysum italicum, infusion, polyphenols, energy expenditure, fat oxidation, blood pressure, pilot study
Published in RUP: 30.07.2021; Views: 3595; Downloads: 87
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4. Optimization of polyphenols extraction from spruce barkEsakkiammal Sudha Esakkimuthu, Kelly Peeters, Ana Miklavčič Višnjevec, Črtomir Tavzes, David Brian DeVallance, Andreja Kutnar, 2021, published scientific conference contribution abstract Keywords: bark, polyphenols, extraction, HPLC-DAD-ESI-MS/MS
Published in RUP: 24.06.2021; Views: 3762; Downloads: 63
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