Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed

Three different extraction methods - hot water (HWE), ethanol (EE) and ultrasonic-assisted water extraction (UAE) - were evaluated for extraction of phenolic compounds in longan (cultivar Edor) seed. The findings indicated that longan seed extracts contained three major phenolic compounds, analyzed...

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Main Authors: Yanisa Chindaluang, Sujinda Sriwattana
Format: Journal
Published: 2018
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937554524&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/45333
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-453332018-01-24T06:08:43Z Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed Yanisa Chindaluang Sujinda Sriwattana Three different extraction methods - hot water (HWE), ethanol (EE) and ultrasonic-assisted water extraction (UAE) - were evaluated for extraction of phenolic compounds in longan (cultivar Edor) seed. The findings indicated that longan seed extracts contained three major phenolic compounds, analyzed by HPLC, including gallic acid, corilagin and ellagic acid. The content of total polyphenolic compounds and antioxidant activities was determined using the Folin-Ciocalteu method and the DPPH assay, respectively. Longan seed extraction by HWE contained the highest yield, total polyphenol content and antioxidant activities (42.80%, 41.250mg gallic acid/g and IC < inf > 50 < /inf > = 0.017 mg/ ml, respectively). UAE produced a higher yield than EE, but lower than HWE, with the lowest extraction time. Moreover, gallic acid content (16.55 mg/g) and corilagin content (35.62 mg/g) extracted by UAE were higher than those of HWE and EE. Ellagic acid content obtained from UAE was significantly (P < 0.05) higher than that from EE, but not significantly different from that of HWE. The application of UAE could provide an alternative method for extraction of photochemical from longan seeds. 2018-01-24T06:08:43Z 2018-01-24T06:08:43Z 2014-01-01 Journal 16851994 2-s2.0-84937554524 10.12982/cmujns.2014.0047 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937554524&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45333
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description Three different extraction methods - hot water (HWE), ethanol (EE) and ultrasonic-assisted water extraction (UAE) - were evaluated for extraction of phenolic compounds in longan (cultivar Edor) seed. The findings indicated that longan seed extracts contained three major phenolic compounds, analyzed by HPLC, including gallic acid, corilagin and ellagic acid. The content of total polyphenolic compounds and antioxidant activities was determined using the Folin-Ciocalteu method and the DPPH assay, respectively. Longan seed extraction by HWE contained the highest yield, total polyphenol content and antioxidant activities (42.80%, 41.250mg gallic acid/g and IC < inf > 50 < /inf > = 0.017 mg/ ml, respectively). UAE produced a higher yield than EE, but lower than HWE, with the lowest extraction time. Moreover, gallic acid content (16.55 mg/g) and corilagin content (35.62 mg/g) extracted by UAE were higher than those of HWE and EE. Ellagic acid content obtained from UAE was significantly (P < 0.05) higher than that from EE, but not significantly different from that of HWE. The application of UAE could provide an alternative method for extraction of photochemical from longan seeds.
format Journal
author Yanisa Chindaluang
Sujinda Sriwattana
spellingShingle Yanisa Chindaluang
Sujinda Sriwattana
Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed
author_facet Yanisa Chindaluang
Sujinda Sriwattana
author_sort Yanisa Chindaluang
title Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed
title_short Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed
title_full Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed
title_fullStr Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed
title_full_unstemmed Comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (Euphoria longana Lamk.) seed
title_sort comparison of ultrasonic extraction with conventional extraction methods of phenolic compounds in longan (euphoria longana lamk.) seed
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937554524&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/45333
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