Determination of Optimal Conditions for Extraction of Alcohol-soluble Eugenol Containing Material from Cloves

Myint, San and Wan Daud, Wan Ramli and Mohamad, Abu Bakar (1995) Determination of Optimal Conditions for Extraction of Alcohol-soluble Eugenol Containing Material from Cloves. Pertanika Journal of Science & Technology, 3 (1). pp. 96-106. ISSN 0128-7680

[img] PDF
2616Kb

Abstract

Clove oleoresin (total soluble extract matter) contains an antioxidant compound eugenol. Extraction of eugenol from cloves was studied using 95% ethanol.Trials varying in particle size, extraction temperature, extraction time and solvent to solid ratio were performed and optimal conditions were evaluated. Refractive index was used to monitor the extraction parameters. Extraction patterns of ground clove fractions with size of 500 pm, 355 pm, 250 pm and less than 250 pm with solvent to solid ratio of 4: 1 at room temperature were studied. Agitation was ensured by a reciprocating shaker. Optimal size for the extraction at room temperature was 250 pm. Trials on extraction temperature were varied from 30°C to 70°C with the same solvent to solid ratio for particle size of 250 pm and 355 pm. Optimal tempel-atures for 250 Fll1 and 355 pm were 50°C and 60°C respectively.

Item Type:Article
Keyword:eugenol, extraction, cloves, process optimization
Publisher:Universiti Putra Malaysia Press
ID Code:3835
Deposited By: Farhana Yusof
Deposited On:02 Dec 2009 01:34
Last Modified:27 May 2013 07:11

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 02 Dec 2009 01:34.

View statistics for "Determination of Optimal Conditions for Extraction of Alcohol-soluble Eugenol Containing Material from Cloves"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.