ANALISIS KADAR KALSIUM DALAM SUSU KAMBING MURNI MENGGUNAKAN METODE TITRASI KOMPLEKSOMETRI

Authors

Abstract

Pure goat milk is an important source of minerals, particularly calcium, which plays a

crucial role in maintaining bone and dental health. Calcium content in milk may vary

due to biological factors of livestock and processing methods; therefore, an accurate

analytical method is required to determine calcium content quantitatively. This study

aimed to determine the calcium content in pure goat milk using the complexometric

titration method and to evaluate the application of this method for calcium analysis.

The research was conducted experimentally in an analytical chemistry laboratory by

titrating pure goat milk samples with a standard EDTA solution using Eriochrome

Black T as an indicator at optimal pH conditions. The results showed that the calcium

content in pure goat milk was 122.4 mg/100 mL. This value indicates that pure goat

milk has a relatively high calcium content, although slightly lower than that of UHT

goat milk. The complexometric titration method proved to be eﬀective and reliable for

the determination of calcium content in pure goat milk and can be applied as a simple

method for quality control of dairy products.

Keywords: pure goat milk, calcium, complexometric titration, EDTA