Study on Determination of Titratable Acidity in Fruits Using Automatic Potentiometric Titrator

doi:10.7506/spkx1002-6630-200904055

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (4): 247-249.doi: 10.7506/spkx1002-6630-200904055

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Study on Determination of Titratable Acidity in Fruits Using Automatic Potentiometric Titrator

LI Wen-sheng，FENH Xiao-yuan*，WANG Bao-gang，GUO Zhen-zhong，YANG Jun-jun，ZHANG Chang-song

Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China

Received:2008-05-08 Revised:2008-06-18 Online:2009-02-15 Published:2010-12-29
Contact: FENH Xiao-yuan E-mail:liwenshenglgs@sohu.com

Abstract

Abstract:

The determination of titratable acidity in apple, grape, strawberry was conducted by monotonic titration (MET) using automatic potentiometric titrator. The recovery and relative standard deviation (RSD) of the method are 92.85% to 96.65% and 0.64% to 1.84% respectively. The determination result is not affected by the color of sample, and the accuracy and precision are high. This method can be used in the determination of fruit quality.

Key words: automatic potentiometric titration, titratable acidity, recovery

CLC Number:

O652.9

LI Wen-sheng，FENH Xiao-yuan*，WANG Bao-gang，GUO Zhen-zhong，YANG Jun-jun，ZHANG Chang-song. Study on Determination of Titratable Acidity in Fruits Using Automatic Potentiometric Titrator[J]. FOOD SCIENCE, 2009, 30(4): 247-249.

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Study on Determination of Titratable Acidity in Fruits Using Automatic Potentiometric Titrator

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