Optimizing Process Conditions for Phosphoric Acid-assisted Degumming of Tephrosia vogelii Hook f. Seed Oil

doi:10.7506/spkx1002-6630-201108019

Abstract

Abstract: Objective: To optimize process conditions for the degumming of Tephrosia.vogelii Hook f. seed oil such as acid kind and amount, water amount, temperature and stirring time for maximizing degumming rate. Methods: On the basis of single factor experiments, phosphoric acid amount, water amount, temperature and stirring time were optimized by response surface analysis. Results: Phosphoric acid was found to be the best degumming agent for T.vogelii Hook f. seed oil. The optimum degumming conditions were determined as follows: stirring at 62 ℃ for 45 min in the presence of 2.47 g/kg phosphoric acid and 4.1% water. Under these conditions, the actual degumming rate was 92.48 % (the degummed oil contained 0.095% phosphatide), close to the predicted value of 91.5256%. Conclusion: The phosphoric acid aided degumming process can effectively remove phospholipid from T.vogelii Hook f. seed oil.

Key words: Tephrosia vogelii Hook f. seed, phosphoric acid, degumming, response surface methodology

CLC Number:

TS224.6

HU Lin-zi，LI Xin-hua，MA Yong-quan，YU Xin. Optimizing Process Conditions for Phosphoric Acid-assisted Degumming of Tephrosia vogelii Hook f. Seed Oil[J]. FOOD SCIENCE, 2011, 32(8): 83-87.

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Optimizing Process Conditions for Phosphoric Acid-assisted Degumming of Tephrosia vogelii Hook f. Seed Oil

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