Page 31 - Biotechnology newsletter 2023-24

Field trip to Goa Dairy, Ponda-Goa

On 27th September 2023, the students of T.Y.B.Sc Biotechnology accompanied by Ms.
Jocelyn Fernandes & Ms. Swaroopa Naik visited the Goa Dairy, Ponda-Goa. The visit aimed
to provide practical knowledge & exposure about the manufacturing & processing of dairy
products.
Students were welcomed by staff member, who introduced Goa state Cooperative Milk
Producers Union Limited i.e. “Goa Dairy” having 117 rural dairy cooperative societies all over
Goa. Goa dairy manufactures 3% fat toned milk, 4.5% fat standard milk, 3.5% fat cow milk,
6% fat High fat milk and various milk products such as curd, ice cream & lassi, producing
around 50,000-53,000 milk packets per day. Nearly 7000 milk farms deliver milk to these
societies where each batch of the milk is tested for its purity by using a lactometer device.
The milk is collected from the farmers from society which has a code in which the name of
the farmers, milk quality, date & time, cow number, liters of milk collected are recorded.
There are 22 routes for milk collection from societies, where every route is connected to 10-12
societies. Upon collection, organoleptic analysis is done to check for the milk spoilage. Milk
is then passed through the process of pasteurization where the milk is heated & then quickly
cooled at a particular temperature. The chemical analysis of the milk is done to check the
presence of adulterants such as urea, sugar, starch etc, followed by packing & storage at 4ºC.
Later we entered the laboratory where the laboratory in charge informed us about the
various physical & chemical tests performed in the laboratory. One such physical test
demonstrated to us was Clot on Boiling Test (COB), where 5ml of milk is boiled in a test tube
and discarded on a smooth surface to check for the presence of flakes formation. If flakes are
present in the milk it is considered not safe for consumption. Chemical tests such as
Methylene Blue Reduction test & Phosphate test were also demonstrated. After the
laboratory visit, the staff member explained the working of Milkoscan FTI machine which
shows the details of milk contents such as fats composition, water, proteins & can also detect
the presence of 25 adulterants. The field visit was an excellent experience for us to
understand the practical aspects of dairy processing & manufacturing of milk-based
products.
-Jiselle Lysandra Carneiro
T.Y BSc Biotechnology

Students of T.Y.B.Sc.Biotechnology at a field trip visit to Goa Dairy,
Ponda - Goa
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