In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves

Hydrangea macrophylla plant, native to Japan and Korea, has been attracting scientific attention due to its potential applications in both food science and health-related research. In this investigation, dry Hydrangea leaves were utilized as the source material. Subsequent to comminution and thermal...

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Main Authors: Barbara Schmitt, Angelika Malarski, Ahlam Al-yafeai, Volker Böhm
Format: Article
Language:English
Published: International Journal of Secondary Metabolite 2024-02-01
Series:International Journal of Secondary Metabolite
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Online Access:https://dergipark.org.tr/en/download/article-file/3534628
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author Barbara Schmitt
Angelika Malarski
Ahlam Al-yafeai
Volker Böhm
author_facet Barbara Schmitt
Angelika Malarski
Ahlam Al-yafeai
Volker Böhm
author_sort Barbara Schmitt
collection DOAJ
description Hydrangea macrophylla plant, native to Japan and Korea, has been attracting scientific attention due to its potential applications in both food science and health-related research. In this investigation, dry Hydrangea leaves were utilized as the source material. Subsequent to comminution and thermal treatment at 70 °C for an 18-hour duration, followed by a 30-minute ultrasonic bath extraction and a 5-minute centrifugation at 5000 rpm, hydrangenol was isolated through preparative HPLC. The investigation involved assessing the antioxidant capacity of hydrangenol, its impact on the activity of α-amylase and α-glucosidase enzymes, and its ability to prevent enzymatic browning. Quantification of antioxidant capacity, determined through TEAC (Trolox Equivalent Antioxidant Capacity), showed values from 1.8 to 3.2 mmol TE/mmol. Likewise, the ORAC (Oxygen Radical Absorbance Capacity) values were in the range of 16.5-27.0 mmol TE/mmol. Total phenolics content (Folin-Ciocalteu test) yielded a range of 7.1-11.2 g GAE (Gallic Acid Equivalents) per 100 g. Examining α-amylase inhibition, hydrangenol demonstrated a 52% inhibition (IC50: 3.6 mg/mL), whereas acarbose (positive control) displayed a higher inhibition of 99 % (IC50: 0.51 mg/mL). Regarding α-glucosidase inhibition, hydrangenol exhibited a 51% inhibition (IC50: 0.97 mg/mL), while acarbose displayed a 46% inhibition (IC50: 2.1 mg/mL). Additionally, the activity of PPO was suppressed by 61% at hydrangenol concentrations of 1 mg/mL and 2 mg/mL, and by 46% at a concentration of 4 mg/mL.
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spelling doaj-art-dfcba70f26b6431a8ca844089ddb2daa2024-12-06T11:01:03ZengInternational Journal of Secondary MetaboliteInternational Journal of Secondary Metabolite2148-69052024-02-01111789210.21448/ijsm.1390183618In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. LeavesBarbara Schmitt0https://orcid.org/0009-0004-4823-9720Angelika Malarski1https://orcid.org/0009-0006-5986-5000Ahlam Al-yafeai2https://orcid.org/0009-0003-3095-3574Volker Böhm3https://orcid.org/0000-0002-9474-4718Friedrich Schiller University Jena, Institute of Nutrtional SciencesFriedrich Schiller University Jena, Institute of Nutrtional SciencesFriedrich Schiller University Jena, Institute of Nutrtional SciencesFriedrich Schiller University Jena, Institute of Nutritional SciencesHydrangea macrophylla plant, native to Japan and Korea, has been attracting scientific attention due to its potential applications in both food science and health-related research. In this investigation, dry Hydrangea leaves were utilized as the source material. Subsequent to comminution and thermal treatment at 70 °C for an 18-hour duration, followed by a 30-minute ultrasonic bath extraction and a 5-minute centrifugation at 5000 rpm, hydrangenol was isolated through preparative HPLC. The investigation involved assessing the antioxidant capacity of hydrangenol, its impact on the activity of α-amylase and α-glucosidase enzymes, and its ability to prevent enzymatic browning. Quantification of antioxidant capacity, determined through TEAC (Trolox Equivalent Antioxidant Capacity), showed values from 1.8 to 3.2 mmol TE/mmol. Likewise, the ORAC (Oxygen Radical Absorbance Capacity) values were in the range of 16.5-27.0 mmol TE/mmol. Total phenolics content (Folin-Ciocalteu test) yielded a range of 7.1-11.2 g GAE (Gallic Acid Equivalents) per 100 g. Examining α-amylase inhibition, hydrangenol demonstrated a 52% inhibition (IC50: 3.6 mg/mL), whereas acarbose (positive control) displayed a higher inhibition of 99 % (IC50: 0.51 mg/mL). Regarding α-glucosidase inhibition, hydrangenol exhibited a 51% inhibition (IC50: 0.97 mg/mL), while acarbose displayed a 46% inhibition (IC50: 2.1 mg/mL). Additionally, the activity of PPO was suppressed by 61% at hydrangenol concentrations of 1 mg/mL and 2 mg/mL, and by 46% at a concentration of 4 mg/mL.https://dergipark.org.tr/en/download/article-file/3534628antioxidant activityteacoracanti-diabetic potentialinhibition of enzymatic browningantioxidant activityteacoracanti-diabetic potentialinhibition of enzymatic browning
spellingShingle Barbara Schmitt
Angelika Malarski
Ahlam Al-yafeai
Volker Böhm
In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves
International Journal of Secondary Metabolite
antioxidant activity
teac
orac
anti-diabetic potential
inhibition of enzymatic browning
antioxidant activity
teac
orac
anti-diabetic potential
inhibition of enzymatic browning
title In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves
title_full In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves
title_fullStr In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves
title_full_unstemmed In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves
title_short In-Vitro Bioactivity Evaluation of Hydrangenol Extracted from Hydrangea macrophylla (Thunb.) Ser. Leaves
title_sort in vitro bioactivity evaluation of hydrangenol extracted from hydrangea macrophylla thunb ser leaves
topic antioxidant activity
teac
orac
anti-diabetic potential
inhibition of enzymatic browning
antioxidant activity
teac
orac
anti-diabetic potential
inhibition of enzymatic browning
url https://dergipark.org.tr/en/download/article-file/3534628
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AT ahlamalyafeai invitrobioactivityevaluationofhydrangenolextractedfromhydrangeamacrophyllathunbserleaves
AT volkerbohm invitrobioactivityevaluationofhydrangenolextractedfromhydrangeamacrophyllathunbserleaves