title: Detection of calcium based neutralizers in milk and milk products by AAS.
abstract: Current study was carried out with the intent to standardize detection and estimation method for calcium (Ca) based neutralizers in milk and milk based indigenous products (khoa and paneer) using atomic absorption spectroscopy (AAS). Neutralized milk, khoa and paneer samples were prepared using milk with developed acidity to which calculated quantity of neutralizer (Ca based) was added. Rosalic acid test results get masked at times due to developed acidity which neutralizes the alkalinity imparted by neutralizer and hence gives false result with time in neutralizer added samples. Atomic absorption spectroscopy proved to be an accurate estimate which could detect the abnormal rise in mineral concentration even with slight addition of neutralizers in comparison with control milk and milk products. Formalin, which is a commonly used preservative in milk samples for chemical analysis, did not have any significant impact on estimation of calcium in the neutralized milk during storage.
authors.affiliation: Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India PIN-132001.
authors.forename: R
authors.initials: R
authors.lastname: Sowmya
authors.affiliation: Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India PIN-132001.
authors.forename: K P
authors.initials: KP
authors.lastname: Indumathi
authors.affiliation: Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India PIN-132001.
authors.forename: S
authors.initials: S
authors.lastname: Arora
authors.affiliation: Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India PIN-132001.
authors.forename: V
authors.initials: V
authors.lastname: Sharma
authors.affiliation: Dairy Chemistry Division, National Dairy Research Institute, Karnal, Haryana India PIN-132001.
authors.forename: A K
authors.initials: AK
authors.lastname: Singh
keywords: AAS; Formalin; Indigenous products; Khoa; Neutralizer; Paneer