Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts

In order to explore the nutritional value and active function of Akebia trifoliata pericarp, the main nutritional components contents of protein, fat, total sugar, reducing sugar, 8 mineral elements, total flavonoids, total phenols and total saponins were determined by using Kjeldahl method, acid hy...

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Main Authors: Mengqin ZHANG, Lu XU, Junbo ZHANG, Genyou OU, Yuan XIANG
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2022-05-01
Series:Shipin gongye ke-ji
Subjects:
Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2021090348
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author Mengqin ZHANG
Lu XU
Junbo ZHANG
Genyou OU
Yuan XIANG
author_facet Mengqin ZHANG
Lu XU
Junbo ZHANG
Genyou OU
Yuan XIANG
author_sort Mengqin ZHANG
collection DOAJ
description In order to explore the nutritional value and active function of Akebia trifoliata pericarp, the main nutritional components contents of protein, fat, total sugar, reducing sugar, 8 mineral elements, total flavonoids, total phenols and total saponins were determined by using Kjeldahl method, acid hydrolysis, phenol sulfuric acid method, 3,5-dinitrosalicylic acid method, ICP-AES method, NaNO2-AlCl3 method, Folin-ciocalten and vanillin-perchloric acid. The antioxidant capacity of pericarp extracts was also evaluated. The results showed that the contents of protein (8.16%±0.11%), reducing sugar (19.31%±0.21%) and total sugar (32.61%±0.18%) in the peel of Akebia trifoliata were high, and the pectin content determined by gravimetric method was (20.08%±0.20%). Among the eight nutrient elements measured, K content was the richest (14061.17 μg/g DW), followed by Ca (4959.28 μg/g DW). The orders of the contents of eight mineral elements were K>Ca>Mg>Fe>Mn>Na>Cu>Zn. The contents of total flavonoids, polyphenolics and saponins were (20.58±0.12), (31.53±0.18) and (45.20±12.04) mg/g DW, respectively. The scavenging capabilities of extraction on the free radicals of DPPH and ABTS+ were also investigated. When the scavenging rate reached to 50%, the IC50 values on DPPH and ABTS+ free radicals scavenging were 0.049, 0.052 mg/mL, respectively. The scavenging ability of extracts in Akebia trifoliata pericarp was dose-dependent. The contents of total flavonoids, total polyphenols and total saponins had strong and positive correlations with antioxidant activity (P<0.01). In summary, Akebia trifoliata pericarp should be new resources with high nutritional values and strong antioxidant activities worth for in-depth development.
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spelling doaj.art-c339adeb1a6649189d947f3ef0846af72022-12-22T03:39:43ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062022-05-01431038839410.13386/j.issn1002-0306.20210903482021090348-10Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its ExtractsMengqin ZHANG0Lu XU1Junbo ZHANG2Genyou OU3Yuan XIANG4College of Material and Engineering, Tongren University, Tongren 554300, ChinaCollege of Material and Engineering, Tongren University, Tongren 554300, ChinaCollege of Material and Engineering, Tongren University, Tongren 554300, ChinaTongren Academy of Agricultural Sciences, Tongren 554300, ChinaCollege of Material and Engineering, Tongren University, Tongren 554300, ChinaIn order to explore the nutritional value and active function of Akebia trifoliata pericarp, the main nutritional components contents of protein, fat, total sugar, reducing sugar, 8 mineral elements, total flavonoids, total phenols and total saponins were determined by using Kjeldahl method, acid hydrolysis, phenol sulfuric acid method, 3,5-dinitrosalicylic acid method, ICP-AES method, NaNO2-AlCl3 method, Folin-ciocalten and vanillin-perchloric acid. The antioxidant capacity of pericarp extracts was also evaluated. The results showed that the contents of protein (8.16%±0.11%), reducing sugar (19.31%±0.21%) and total sugar (32.61%±0.18%) in the peel of Akebia trifoliata were high, and the pectin content determined by gravimetric method was (20.08%±0.20%). Among the eight nutrient elements measured, K content was the richest (14061.17 μg/g DW), followed by Ca (4959.28 μg/g DW). The orders of the contents of eight mineral elements were K>Ca>Mg>Fe>Mn>Na>Cu>Zn. The contents of total flavonoids, polyphenolics and saponins were (20.58±0.12), (31.53±0.18) and (45.20±12.04) mg/g DW, respectively. The scavenging capabilities of extraction on the free radicals of DPPH and ABTS+ were also investigated. When the scavenging rate reached to 50%, the IC50 values on DPPH and ABTS+ free radicals scavenging were 0.049, 0.052 mg/mL, respectively. The scavenging ability of extracts in Akebia trifoliata pericarp was dose-dependent. The contents of total flavonoids, total polyphenols and total saponins had strong and positive correlations with antioxidant activity (P<0.01). In summary, Akebia trifoliata pericarp should be new resources with high nutritional values and strong antioxidant activities worth for in-depth development.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2021090348akebia trifoliata pericarpnutritional componentstotal flavonoidstotal polyphenolstotal saponinsantioxidant activity
spellingShingle Mengqin ZHANG
Lu XU
Junbo ZHANG
Genyou OU
Yuan XIANG
Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts
Shipin gongye ke-ji
akebia trifoliata pericarp
nutritional components
total flavonoids
total polyphenols
total saponins
antioxidant activity
title Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts
title_full Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts
title_fullStr Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts
title_full_unstemmed Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts
title_short Determination of Contents of the Main Nutritional Components, Functional Components of Akebia trifoliata Pericarp and the Antioxidant Activity of Its Extracts
title_sort determination of contents of the main nutritional components functional components of akebia trifoliata pericarp and the antioxidant activity of its extracts
topic akebia trifoliata pericarp
nutritional components
total flavonoids
total polyphenols
total saponins
antioxidant activity
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2021090348
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