Leaves of Yellow Gentian (Gentiana lutea) as an Alternative Source of Bitter Secoiridoid Glycosides

Article Chemistry, Applied

An easy way for the hydrolysis, pre-concentration, and chemical stabilization of crocetin from saffron powder

Serena Fiorito et al.

Summary: Four synthetic clays were found to selectively retain crocetin from saffron powder aqueous solutions, demonstrating its chemical stabilization over time. The established method provides a means to extract pure crocetin for potential applications in food, pharmaceutical, and cosmetic industries.

FOOD CHEMISTRY (2022)

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Article Chemistry, Applied

A novel and efficient concentration of pomegranate juice with enhanced antioxidant activity

Salvatore Genovese et al.

Summary: This study investigated the performance of various solid sorbents in the concentration of pomegranate juice. The results showed that magnesium-containing clays effectively bleached and enhanced the antioxidant capacity of pomegranate juice. The antioxidant activity of pomegranate concentrate supported on clays remained stable for 4 days.

FOOD CHEMISTRY (2022)

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Article Food Science & Technology

Solid-Phase Adsorption of Curcumin from Turmeric Extracts by Lamellar Solids and Magnesium Oxide and Hydroxide

Serena Fiorito et al.

Summary: Solid-phase extraction and solid-phase adsorption are convenient experimental techniques employed for concentration and purification of secondary metabolites. In this study, 16 solid sorbents were screened for their ability to selectively concentrate curcumin from turmeric extract, with magnesium oxide showing the highest adsorption percentage of 96.6%. Other sorbents also demonstrated varying degrees of effectiveness in concentrating curcumin.

FOOD ANALYTICAL METHODS (2021)

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Review Plant Sciences

Genus Gentiana: A review on phytochemistry, pharmacology and molecular mechanism

Min Jiang et al.

Summary: The Gentiana genus has a long tradition of medicinal uses in Europe and Asia, with main bioactive components including iridoids, xanthones, and flavonoids showing various protective activities. Plants from this genus have potential therapeutic targets in treating certain diseases, with natural products showing no significant toxicity.

JOURNAL OF ETHNOPHARMACOLOGY (2021)

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Article Chemistry, Applied

An improved method for the isolation of amarogentin, the bitter principle of yellow gentian roots

Serena Fiorito et al.

Summary: The study aimed to establish a convenient method for isolating amarogentin, a highly bitter natural compound, from Gentiana lutea root extract. The process involved treatment with various solid sorbents followed by HPLC analysis, with materials containing Mg+2 showing the best adsorption yields. This method may be useful for obtaining a pure nature-derived food additive to impart bitterness to foods and beverages.

FOOD CHEMISTRY (2021)

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Article Chemistry, Analytical

Pre-concentration of active principles from different varieties of Camellia sinensis extracts by solid sorbents

Salvatore Genovese et al.

Summary: This study investigated the phytochemical composition of leaves extracts of Camellia sinensis(L.) Kuntze treated with 16 selected solid sorbents. The pre-concentration and selective adsorption of main active principles were studied, revealing different adsorption patterns for each phytochemical depending on the type of leaves extract. The method outlined in this study may be useful for obtaining tea extracts enriched in selective active principles for industrial purposes.

JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS (2021)

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Article Chemistry, Applied

Pre-concentration of capsaicinoids from different cultivars of Capsicum annuum after extraction in heterogenous mixtures

Salvatore Genovese et al.

Summary: Capsaicinoids from hot peppers were analyzed using various heterogeneous supports, with one specific variety showing the highest concentrations. Solid phase extraction with hydrotalcite and bentonite yielded the best extractive yields. This study provides insights for industrial processes to obtain nutraceuticals and food additives enriched in capsaicinoids.

JOURNAL OF FOOD COMPOSITION AND ANALYSIS (2021)

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Article Plant Sciences

A Novel Auraptene-Enriched Citrus Peels-Based Blend with Enhanced Antioxidant Activity

Serena Fiorito et al.

Summary: The study established a convenient process for obtaining auraptene-enriched blends from lemon peel powder with high enrichment and antioxidant properties, demonstrating superior antioxidant and radical scavenger activities compared to traditional food samples.

PLANT FOODS FOR HUMAN NUTRITION (2021)

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Article Green & Sustainable Science & Technology