Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves

To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols....
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Peyman Ebrahimi [verfasserIn] Dasha Mihaylova [verfasserIn] Christine Mayr Marangon [verfasserIn] Luca Grigoletto [verfasserIn] Anna Lante [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	food by-products ultrasound-assisted extraction (UAE) lyophilization green technologies polyphenol oxidase enzymatic browning

Übergeordnetes Werk:	In: Molecules - MDPI AG, 2003, 27(2022), 22, p 8110
Übergeordnetes Werk:	volume:27 ; year:2022 ; number:22, p 8110

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/molecules27228110

Katalog-ID:	DOAJ085792861

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520			\|a To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products.
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allfields_unstemmed	10.3390/molecules27228110 doi (DE-627)DOAJ085792861 (DE-599)DOAJd8c35c458e6d4620b894af841ec4b692 DE-627 ger DE-627 rakwb eng QD241-441 Peyman Ebrahimi verfasserin aut Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products. food by-products ultrasound-assisted extraction (UAE) lyophilization green technologies polyphenol oxidase enzymatic browning Organic chemistry Dasha Mihaylova verfasserin aut Christine Mayr Marangon verfasserin aut Luca Grigoletto verfasserin aut Anna Lante verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8110 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8110 https://doi.org/10.3390/molecules27228110 kostenfrei https://doaj.org/article/d8c35c458e6d4620b894af841ec4b692 kostenfrei https://www.mdpi.com/1420-3049/27/22/8110 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8110
allfieldsGer	10.3390/molecules27228110 doi (DE-627)DOAJ085792861 (DE-599)DOAJd8c35c458e6d4620b894af841ec4b692 DE-627 ger DE-627 rakwb eng QD241-441 Peyman Ebrahimi verfasserin aut Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products. food by-products ultrasound-assisted extraction (UAE) lyophilization green technologies polyphenol oxidase enzymatic browning Organic chemistry Dasha Mihaylova verfasserin aut Christine Mayr Marangon verfasserin aut Luca Grigoletto verfasserin aut Anna Lante verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8110 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8110 https://doi.org/10.3390/molecules27228110 kostenfrei https://doaj.org/article/d8c35c458e6d4620b894af841ec4b692 kostenfrei https://www.mdpi.com/1420-3049/27/22/8110 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8110
allfieldsSound	10.3390/molecules27228110 doi (DE-627)DOAJ085792861 (DE-599)DOAJd8c35c458e6d4620b894af841ec4b692 DE-627 ger DE-627 rakwb eng QD241-441 Peyman Ebrahimi verfasserin aut Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products. food by-products ultrasound-assisted extraction (UAE) lyophilization green technologies polyphenol oxidase enzymatic browning Organic chemistry Dasha Mihaylova verfasserin aut Christine Mayr Marangon verfasserin aut Luca Grigoletto verfasserin aut Anna Lante verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8110 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8110 https://doi.org/10.3390/molecules27228110 kostenfrei https://doaj.org/article/d8c35c458e6d4620b894af841ec4b692 kostenfrei https://www.mdpi.com/1420-3049/27/22/8110 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8110
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callnumber-first	Q - Science
author	Peyman Ebrahimi
spellingShingle	Peyman Ebrahimi misc QD241-441 misc food by-products misc ultrasound-assisted extraction (UAE) misc lyophilization misc green technologies misc polyphenol oxidase misc enzymatic browning misc Organic chemistry Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves
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topic_title	QD241-441 Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves food by-products ultrasound-assisted extraction (UAE) lyophilization green technologies polyphenol oxidase enzymatic browning
topic	misc QD241-441 misc food by-products misc ultrasound-assisted extraction (UAE) misc lyophilization misc green technologies misc polyphenol oxidase misc enzymatic browning misc Organic chemistry
topic_unstemmed	misc QD241-441 misc food by-products misc ultrasound-assisted extraction (UAE) misc lyophilization misc green technologies misc polyphenol oxidase misc enzymatic browning misc Organic chemistry
topic_browse	misc QD241-441 misc food by-products misc ultrasound-assisted extraction (UAE) misc lyophilization misc green technologies misc polyphenol oxidase misc enzymatic browning misc Organic chemistry
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title	Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves
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title_full	Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves
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title_sort	impact of sample pretreatment and extraction methods on the bioactive compounds of sugar beet (<i<beta vulgaris</i< l.) leaves
callnumber	QD241-441
title_auth	Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves
abstract	To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products.
abstractGer	To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products.
abstract_unstemmed	To find the most optimal green valorization process of food by-products, sugar beet (<i<Beta vulgaris</i< L.) leaves (SBLs) were freeze-dried and ground with/without liquid nitrogen (LN), as a simple sample pretreatment method, before ultrasound-assisted extraction (UAE) of polyphenols. First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. Thus, combining freeze-drying with the aqueous UAE method could be proposed as a sustainable strategy for extracting bioactive compounds from food by-products.
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container_issue	22, p 8110
title_short	Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves
url	https://doi.org/10.3390/molecules27228110 https://doaj.org/article/d8c35c458e6d4620b894af841ec4b692 https://www.mdpi.com/1420-3049/27/22/8110 https://doaj.org/toc/1420-3049
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First, the water activity, proximate composition, amino acid (AA) and fatty acid (FA) profiles, and polyphenol oxidase (PPO) activity of dried and fresh SBLs were evaluated. Then, conventional extraction (CE) and UAE of polyphenols from SBLs using water/EtOH:water 14:6 (<i<v</i</<i<v</i<) as extracting solvents were performed to determine the individual and combined effects of the sample preparation method and UAE. In all the freeze-dried samples, the specific activity of PPO decreased significantly (<i<p</i< ≤ 0.05). Freeze-drying significantly increased (<i<p</i< ≤ 0.05) the fiber and essential FA contents of SBLs. The FA profile of SBLs revealed that they are rich sources of oleic, linoleic, and α-linolenic acids. Although freeze-drying changed the contents of most AAs insignificantly, lysine increased significantly from 7.06 ± 0.46% to 8.32 ± 0.38%. The aqueous UAE of the freeze-dried samples without LN pretreatment yielded the most optimal total phenolic content (TPC) (69.44 ± 0.15 mg gallic acid equivalent/g dry matter (mg GAE/g DM)) and excellent antioxidant activities. 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Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (<i<Beta vulgaris</i< L.) Leaves

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