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Effect of chain lengths of alcohol as precipitating agent on extraction of pectin from Citrus nobilis peels

  • Eny Kusrini
  • , Dwi Aprillia Wulandari
  • , Nur Alfin Hidayati
  • , Mazidah Mamat
  • , Anwar Usman

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

3 Citations (Scopus)

Abstract

In this study, pectin was extracted from Citrus nobilis peels using hydrochloric acid, followed by precipitation process using three different types of alcohols (methanol, ethanol, and 1-propanol). The optimum condition for pectin extraction was obtained at pH 1.5 using 0.5 M HCl, temperature of 95 °C and for 60 minutes. The effect of precipitation solvent on yield and purity of pectin was investigated. The yield of pectin was obtained at 19.8, 18.8, and 12.7% using methanol, ethanol, 1-propanol as precipitated agents, respectively. Citrus nobilis pectin obtained has a high level of purity and methoxyl content. The methoxyl content values of Citrus nobilis peels was obtained of 7.21% using methanol as precipitating agent. Based on the above analysis, the use of methanol as precipitating agents in pectin extraction has a very significant effect compared to other alcohols.

Original languageEnglish
Title of host publication4th International Tropical Renewable Energy Conference, i-TREC 2019
EditorsEny Kusrini, I. Gde Dharma Nugraha
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420144
DOIs
Publication statusPublished - 3 Sept 2020
Event4th International Tropical Renewable Energy Conference 2019, i-TREC 2019 - Bali, Indonesia
Duration: 14 Aug 201916 Aug 2019

Publication series

NameAIP Conference Proceedings
Volume2255
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Tropical Renewable Energy Conference 2019, i-TREC 2019
Country/TerritoryIndonesia
CityBali
Period14/08/1916/08/19

Keywords

  • Alcohols
  • Citrus nobilis peels
  • Extraction
  • Pectin
  • Precipitating agent

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