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Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique

Banana peels has been shown to possess strong antioxidant which may exhibit protective responses against reactive oxygen species through free radicals scavenging and breaking the autoxidative chain reaction and restore the ‘redox homeostasis’ state. Subcritical water extraction method was used by us...

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Main Authors: Ishak, Nur Akmal, Abdul Rashid, Muhammad Yusuf, Zabidi, Nur Athirah
Format: Article
Language:English
Published: Universiti Sains Islam Malaysia 2019
Online Access:http://psasir.upm.edu.my/id/eprint/80666/1/BANANA.pdf
http://psasir.upm.edu.my/id/eprint/80666/
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spelling my.upm.eprints.806662020-11-04T20:21:10Z http://psasir.upm.edu.my/id/eprint/80666/ Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique Ishak, Nur Akmal Abdul Rashid, Muhammad Yusuf Zabidi, Nur Athirah Banana peels has been shown to possess strong antioxidant which may exhibit protective responses against reactive oxygen species through free radicals scavenging and breaking the autoxidative chain reaction and restore the ‘redox homeostasis’ state. Subcritical water extraction method was used by using water as the solvent and increasing the temperature to between 100 and 374°C and keeping the pressure high enough to maintain the liquid state allowing the dielectric constant (ε) of water becomes like that of an organic solvent, like ethanol or methanol. The extract was collected by using temperatures of 100 °C, 150 °C, 180 °C and 200 °C with 30, 60, 90 and 120 minutes for the investigation of antioxidative compounds and antioxidant activity. The TPC ranged widely from 20.93 to 66.39 mg GAE/g for Pisang Tanduk and 43.64 to 151.40 mg GAE/g for Pisang Cavendish peel extract. While TFC of Pisang Tanduk ranged from 1.94 to 17.19 RE/g and for Pisang Cavendish it was as low from 3.80 to as high as 72.45 RE/g. Radical scavenging activities (inhibition of DPPH) of the extracts ranged from 36.96 to 85.60% for Pisang Tanduk and from 52.26 to 93.68%. Inhibition of ABST scavenging activity showed 97.14 to 99.03% inhibition for Pisang Tanduk. For Pisang Cavendish, it showed from 73.02 to 98.86% inhibition. Although both banana peel extracts appeared to have low TPC and TFC, its antioxidant activities were ranked moderate to high. This implies that antioxidative compounds other than phenolics and flavonoids were probably responsible for inhibition of DPPH. Universiti Sains Islam Malaysia 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/80666/1/BANANA.pdf Ishak, Nur Akmal and Abdul Rashid, Muhammad Yusuf and Zabidi, Nur Athirah (2019) Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique. Ulum Islamiyyah The Malaysian Journal of Islamic Sciences, 26. pp. 19-30. ISSN 1675-5936; ESSN: 2289-4799 https://oarep.usim.edu.my/ 10.33102/ulum.2019.26.03
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Banana peels has been shown to possess strong antioxidant which may exhibit protective responses against reactive oxygen species through free radicals scavenging and breaking the autoxidative chain reaction and restore the ‘redox homeostasis’ state. Subcritical water extraction method was used by using water as the solvent and increasing the temperature to between 100 and 374°C and keeping the pressure high enough to maintain the liquid state allowing the dielectric constant (ε) of water becomes like that of an organic solvent, like ethanol or methanol. The extract was collected by using temperatures of 100 °C, 150 °C, 180 °C and 200 °C with 30, 60, 90 and 120 minutes for the investigation of antioxidative compounds and antioxidant activity. The TPC ranged widely from 20.93 to 66.39 mg GAE/g for Pisang Tanduk and 43.64 to 151.40 mg GAE/g for Pisang Cavendish peel extract. While TFC of Pisang Tanduk ranged from 1.94 to 17.19 RE/g and for Pisang Cavendish it was as low from 3.80 to as high as 72.45 RE/g. Radical scavenging activities (inhibition of DPPH) of the extracts ranged from 36.96 to 85.60% for Pisang Tanduk and from 52.26 to 93.68%. Inhibition of ABST scavenging activity showed 97.14 to 99.03% inhibition for Pisang Tanduk. For Pisang Cavendish, it showed from 73.02 to 98.86% inhibition. Although both banana peel extracts appeared to have low TPC and TFC, its antioxidant activities were ranked moderate to high. This implies that antioxidative compounds other than phenolics and flavonoids were probably responsible for inhibition of DPPH.
format Article
author Ishak, Nur Akmal
Abdul Rashid, Muhammad Yusuf
Zabidi, Nur Athirah
spellingShingle Ishak, Nur Akmal
Abdul Rashid, Muhammad Yusuf
Zabidi, Nur Athirah
Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
author_facet Ishak, Nur Akmal
Abdul Rashid, Muhammad Yusuf
Zabidi, Nur Athirah
author_sort Ishak, Nur Akmal
title Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
title_short Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
title_full Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
title_fullStr Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
title_full_unstemmed Antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
title_sort antidiabetic and antioxidant capacities of local banana peels extract by using subcritical water extraction technique
publisher Universiti Sains Islam Malaysia
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/80666/1/BANANA.pdf
http://psasir.upm.edu.my/id/eprint/80666/
https://oarep.usim.edu.my/
_version_ 1683232237036765184
score 13.211869

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