Hydrothermal extraction of antioxidant compounds from mangosteen pericarp with low-transition-temperature mixture and sonication pretreatment

Siti Machmudah, Widiyastuti, Tantular Nurtono, Sugeng Winardi, Wahyudiono, Hideki Kanda, Motonobu Goto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Antioxidant compounds from mangosteen pericarps have been extracted with low-transition-temperature mixture (LTTM) assisted hydrothermal method. Extracted antioxidant compounds were determined as xanthone and total phenolic compounds. The effects of temperature, concentration of LTTM, and sonication pretreatment on the recovery of xanthone and total phenolic compounds were investigated. Extraction were carried out in a batch extractor at various temperatures (120 - 160°C), concentrations of LTTM (0.1 - 0.3 mg/mL), and sonication pretreatments (0 - 10 min). LTTM used for extraction was consisted of citric acid as hydrogen bond donor and alanine as hydrogen bond acceptor. Xanthone and total phenolic compounds were analyzed by spectrophotometer. In order to determine the effect of extraction condition on the antioxidant efficiency of the extract, the antioxidant efficiency of extract were analyzed by DPPH assay method. Based on the result, the recovery of xanthone increased as increasing temperature and concentration of LTTM. Inversely, the recovery of total phenolic compounds decreased as increasing temperature. The sonication pretreatment had significantly effect on the recovery of both xanthone and total phenolic compounds, however the optimum condition of sonication pretreatment was at 5 min. The antioxidant efficiency of the extract was affected by the extraction condition, and the highest antioxidant efficiency was 1.395 obtained at temperature of 120°C, LTTM concentration of 0.3 mg/mL, and sonication time of 5 min.

Original languageEnglish
Title of host publicationInternational Seminar on Fundamental and Application of Chemical Engineering 2016, ISFAChE 2016
Subtitle of host publicationProceedings of the 3rd International Seminar on Fundamental and Application of Chemical Engineering 2016
Editors Widiyastuti, Fadlilatul Taufany, Siti Nurkhamidah
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415102
DOIs
Publication statusPublished - 2017 May 24
Event3rd International Seminar on Fundamental and Application of Chemical Engineering 2016, ISFAChE 2016 - East Java, Indonesia
Duration: 2016 Nov 12016 Nov 2

Publication series

NameAIP Conference Proceedings
Volume1840
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Seminar on Fundamental and Application of Chemical Engineering 2016, ISFAChE 2016
Country/TerritoryIndonesia
CityEast Java
Period16/11/116/11/2

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