Fatty acid composition, squalene and elements in apple by-products: comparison between ancient cultivars and commercial varieties

The manufacturing of apple-based products leads to high volumes of apple pomace (about 25% of the fresh fruit), whose exploitation would be desirable. The aim of this study was to investigate the content of bioactive substances and elements in this waste material. Fatty acids, squalene content and m...

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Veröffentlicht in:European food research & technology 2022-06, Vol.248 (6), p.1541-1551
Hauptverfasser: Scortichini, Serena, Appignanesi, Diego, Zannotti, Marco, D’Amato, Chiara Anna, Lenti, Lucia, Maggi, Filippo, Ferraro, Stefano, Fiorini, Dennis, Giovannetti, Rita
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container_end_page 1551
container_issue 6
container_start_page 1541
container_title European food research & technology
container_volume 248
creator Scortichini, Serena
Appignanesi, Diego
Zannotti, Marco
D’Amato, Chiara Anna
Lenti, Lucia
Maggi, Filippo
Ferraro, Stefano
Fiorini, Dennis
Giovannetti, Rita
description The manufacturing of apple-based products leads to high volumes of apple pomace (about 25% of the fresh fruit), whose exploitation would be desirable. The aim of this study was to investigate the content of bioactive substances and elements in this waste material. Fatty acids, squalene content and mineral composition were determined in peel and seeds of the fruits of four commercial varieties and seven ancient cultivars. Peel lipid extract resulted to have optimal n -6/ n -3 polyunsaturated fatty acids ratio (1.5–7.6), encouraging possible exploitations in nutraceutical formulations. Squalene, a triterpene with several bioactivities, showed a content of 1.7–24.7 and 0.9–2.9 mg/100 g in fresh seeds and peels, respectively, with the highest values in commercial varieties. Regarding the mineral content, resulted to be generally higher in ancient varieties, potassium was the most abundant (56.1–91.3 and 80.0–193.1 mg/100 g, in fresh seeds and peels, respectively), followed by phosphorus (26.8–63.8 and 8.7–75.3 mg/100 g, respectively) and magnesium (24.3–47.7 and 5.3–30.8 mg/100 g, respectively). Among micronutrients, apple pomace resulted to be a good source of iron (0.32–0.98 and 0.11–0.78 mg/100 g in fresh seeds and peels, respectively), manganese (0.25–0.60 and 0.05–0.33 mg/100 g, respectively) and zinc (0.15–0.42 and 0.03–0.12 mg/100 g, respectively).
doi_str_mv 10.1007/s00217-022-03983-3
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The aim of this study was to investigate the content of bioactive substances and elements in this waste material. Fatty acids, squalene content and mineral composition were determined in peel and seeds of the fruits of four commercial varieties and seven ancient cultivars. Peel lipid extract resulted to have optimal n -6/ n -3 polyunsaturated fatty acids ratio (1.5–7.6), encouraging possible exploitations in nutraceutical formulations. Squalene, a triterpene with several bioactivities, showed a content of 1.7–24.7 and 0.9–2.9 mg/100 g in fresh seeds and peels, respectively, with the highest values in commercial varieties. Regarding the mineral content, resulted to be generally higher in ancient varieties, potassium was the most abundant (56.1–91.3 and 80.0–193.1 mg/100 g, in fresh seeds and peels, respectively), followed by phosphorus (26.8–63.8 and 8.7–75.3 mg/100 g, respectively) and magnesium (24.3–47.7 and 5.3–30.8 mg/100 g, respectively). 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subjects Agriculture
Analytical Chemistry
Apple pomace
Apples
Biological activity
Biotechnology
Chemistry
Chemistry and Materials Science
Composition
Cultivars
Fatty acid composition
Fatty acids
Food Science
Forestry
Fruits
Functional foods & nutraceuticals
Lipids
Magnesium
Manganese
Micronutrients
Mineral composition
Original Paper
Phosphorus
Polyunsaturated fatty acids
Seeds
Squalene
Waste materials
title Fatty acid composition, squalene and elements in apple by-products: comparison between ancient cultivars and commercial varieties
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