• Materials Science
  • Published 2012

Study on the colorimetry determination conditions of pectin in fruits and derived products

@inproceedings{Fengkui2012StudyOT,
  title={Study on the colorimetry determination conditions of pectin in fruits and derived products},
  author={Wu Fengkui},
  year={2012}
}
In order to research the determination method of pectin content in fruits and derived products,coloring conditions of sulfuric acid-carbazole colorimetry including absorption wavelength,amount of carbazole-ethanol solution and sulfuric acid,temperature,reaction time,and stabilization time after coloring were optimized using galacturonic acid as standard substance.The results showed that the optimum coloring conditions were adding 0.25 mL 0.1% carbazole-ethanol solution and adding 5.0 mL… CONTINUE READING