Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2006 | Volume: 6 | Issue: 14 | Page No.: 2944-2947
DOI: 10.3923/jas.2006.2944.2947
Study on Grape Seeds Extraction and Optimization: An Approach
Dalia Youssef and Hala El-Adawi

Abstract:
The efficient methods for extracting phenolics from grape seeds have shown broad range of pharmacological activities, due to the special health promoting and disease preventing effects of polyphenols. In this research, red grape seeds were subjected to different extraction conditions. The effect of single factor such as the concentration of solvent, the ratio of liquid to solid (L/S), extraction temperature and extraction time were studied. Total phenol was measured by the 4-ammonium antipyrine method to monitor the efficiency of the extraction under different experimental conditions. High Pressure Liquid Chromatograph (HPLC) analysis was applied to identify and quantify some specific dimeric and trimeric phenolics in grape seeds. The extract with highest total phenolics was obtained with ethanol when the ratio of ethanol to water was 1:1 to 3:2 (v/v). A higher extraction yield was obtained at higher temperature. In most cases, when ratio of liquid to solid was 7-8: 1 and extraction time was around 3 h resulted in the best yield.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Development of Vitamin C Rich Value Added Beverage
  •    Phytochemical Properties of Some Grapevine (Vitis vinifera L.) Hybrids
How to cite this article:

Dalia Youssef and Hala El-Adawi , 2006. Study on Grape Seeds Extraction and Optimization: An Approach. Journal of Applied Sciences, 6: 2944-2947.

DOI: 10.3923/jas.2006.2944.2947

URL: https://scialert.net/abstract/?doi=jas.2006.2944.2947

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

       

       

Curve Bottom