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author:

Fu, Hong (Fu, Hong.) [1] | Yang, Lin (Yang, Lin.) [2] | Yuan, Huijun (Yuan, Huijun.) [3] | Xiao, Feiyan (Xiao, Feiyan.) [4] | Lo, Y. Martin (Lo, Y. Martin.) [5]

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EI

Abstract:

A new diaphragm electrochemical system was devised and tested for hydrogenation of soybean oil under moderate processing temperature and atmospheric pressure. With proper loading of the catalyst Pd-C, the reactor was operated successfully for 6 h and yielded hydrogenated soybean oil containing 8.62% TFAs with an IV of 88.86 g I2/100 g oil and an AV of 0.7 mg KOH/g oil. The low AV (acid value) of the hydrogenated oil, indicative of the oxidization tendency of the oil, is highly desirable from the industrial application standpoint. The low specific isomerization index was reached with 0.4 mol/L of formate ions at pH 5.0 under 60 °C using a constant applied current density (10 mA/cm2). The extent of hydrogenation was found to increase with increasing current density, formate ion concentration, reaction temperature, catalyst loading, and speed of agitation. It was characterized that the extent of hydrogenation under low pH (2.0-5.0) was controlled by the regeneration of formate ion, whereas under high pH (6.0-10.0) the hydrogenation was influenced strongly by the formate ion stability. © 2008 AOCS.

Keyword:

Atmospheric pressure Catalysts Diaphragms Fatty acids Hydrogenation Ions Potassium hydroxide Processing Soybean oil

Community:

  • [ 1 ] [Fu, Hong]College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Yang, Lin]Ocean Environment and Fish Source Monitor Center of Fujian Province, Fuzhou, Fujian 350001, China
  • [ 3 ] [Yuan, Huijun]College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Xiao, Feiyan]College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 5 ] [Lo, Y. Martin]Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, United States

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Source :

JAOCS, Journal of the American Oil Chemists' Society

ISSN: 0003-021X

Year: 2008

Issue: 11

Volume: 85

Page: 1087-1096

1 . 5 0 4

JCR@2008

1 . 9 0 0

JCR@2023

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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