By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition

Abstract The hazelnut seed skins (HSS) are by-products from roasting or blanching hazelnuts without direct second utilization. The generation of HSS creates an economic and environmental problem. The object of the study was a comprehensive analysis of the properties for reuse of HSS. Water extractio...

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Main Authors: Marcin Kruk, Alicja Ponder, Joanna Horoszewicz, Damian Popławski, Katarzyna Król, Joanna Leszczyńska, Danuta Jaworska, Monika Trząskowska
Format: Article
Language:English
Published: Nature Portfolio 2024-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-69900-8
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author Marcin Kruk
Alicja Ponder
Joanna Horoszewicz
Damian Popławski
Katarzyna Król
Joanna Leszczyńska
Danuta Jaworska
Monika Trząskowska
author_facet Marcin Kruk
Alicja Ponder
Joanna Horoszewicz
Damian Popławski
Katarzyna Król
Joanna Leszczyńska
Danuta Jaworska
Monika Trząskowska
author_sort Marcin Kruk
collection DOAJ
description Abstract The hazelnut seed skins (HSS) are by-products from roasting or blanching hazelnuts without direct second utilization. The generation of HSS creates an economic and environmental problem. The object of the study was a comprehensive analysis of the properties for reuse of HSS. Water extraction of industrial HSS was applied (water with sonication of the HSS for 10 min at 90 ℃). The extracts obtained were freeze-dried to facilitate analysis and future application. The HSS and their extracts were analysed. Polyphenols, antioxidants, allergens, antimicrobial properties and instrumental sensory analysis were examined. The total polyphenol content in the samples was 37.8–44.0 mg gallic acid equivalent g−1. Gallic acid was the major phenolic compound. The antioxidant capacity of the samples was 198.9–250.6 mg VCEAC g−1 (vitamin C equivalent) according to the ABTS method and 98.4–106.8 mg VCEAC g−1 in the DPPH method. The extracts inhibited all tested strains of pathogenic bacteria. Allergen content was reduced in HSS and the extracts. Instrumental sensory analysis showed differences between taste parameters and odour profile samples. HSS can be reused in food production as a bacteriostatic, antioxidant additive and sensory-creating factor due to various chemical compounds corresponding with taste and odour.
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spelling doaj-art-522ba366e2134459a37e1bf3e6d5bb382025-08-20T02:49:57ZengNature PortfolioScientific Reports2045-23222024-08-0114111010.1038/s41598-024-69900-8By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutritionMarcin Kruk0Alicja Ponder1Joanna Horoszewicz2Damian Popławski3Katarzyna Król4Joanna Leszczyńska5Danuta Jaworska6Monika Trząskowska7Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS)Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS)Faculty of Human Nutrition, Warsaw, University of Life Sciences (WULS)Faculty of Human Nutrition, Warsaw, University of Life Sciences (WULS)Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS)Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Łódz University of TechnologyInstitute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS)Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS)Abstract The hazelnut seed skins (HSS) are by-products from roasting or blanching hazelnuts without direct second utilization. The generation of HSS creates an economic and environmental problem. The object of the study was a comprehensive analysis of the properties for reuse of HSS. Water extraction of industrial HSS was applied (water with sonication of the HSS for 10 min at 90 ℃). The extracts obtained were freeze-dried to facilitate analysis and future application. The HSS and their extracts were analysed. Polyphenols, antioxidants, allergens, antimicrobial properties and instrumental sensory analysis were examined. The total polyphenol content in the samples was 37.8–44.0 mg gallic acid equivalent g−1. Gallic acid was the major phenolic compound. The antioxidant capacity of the samples was 198.9–250.6 mg VCEAC g−1 (vitamin C equivalent) according to the ABTS method and 98.4–106.8 mg VCEAC g−1 in the DPPH method. The extracts inhibited all tested strains of pathogenic bacteria. Allergen content was reduced in HSS and the extracts. Instrumental sensory analysis showed differences between taste parameters and odour profile samples. HSS can be reused in food production as a bacteriostatic, antioxidant additive and sensory-creating factor due to various chemical compounds corresponding with taste and odour.https://doi.org/10.1038/s41598-024-69900-8ResiduesPolyphenolsAntimicrobial propertiesAllergensInstrumental sensory analysisBioactive compounds
spellingShingle Marcin Kruk
Alicja Ponder
Joanna Horoszewicz
Damian Popławski
Katarzyna Król
Joanna Leszczyńska
Danuta Jaworska
Monika Trząskowska
By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
Scientific Reports
Residues
Polyphenols
Antimicrobial properties
Allergens
Instrumental sensory analysis
Bioactive compounds
title By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
title_full By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
title_fullStr By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
title_full_unstemmed By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
title_short By-product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
title_sort by product hazelnut seed skin characteristics and properties in terms of use in food processing and human nutrition
topic Residues
Polyphenols
Antimicrobial properties
Allergens
Instrumental sensory analysis
Bioactive compounds
url https://doi.org/10.1038/s41598-024-69900-8
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