Related Experiment Video
Updated: Jun 7, 2026
05:45
Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality
Published on: April 7, 2023
Development and application of a processing model for the Irish dairy industry
U Geary1, N Lopez-Villalobos, D J Garrick
1Livestock Systems Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland. una.geary@teagasc.ie
Journal of Dairy Science
|October 23, 2010
Summary
A new model evaluates milk processing, estimating milk value based on composition and product mix. Jersey milk consistently yielded higher milk values across different processing scenarios.
Area of Science:
- Dairy Science
- Agricultural Economics
- Food Processing Engineering
Background:
- Milk processing involves complex steps from collection to product manufacture.
- Optimizing milk value requires understanding the interplay of milk composition, product portfolio, and market prices.
- Previous models may not fully capture the economic impact of diverse milk compositions on processing outcomes.
Purpose of the Study:
- To develop and apply a processing-sector model for simulating milk collection, standardization, and product manufacture.
- To estimate milk product yield, net milk value, and component values based on various inputs.
- To analyze the economic impact of different milk compositions and product portfolios on milk's net value.
Main Methods:
- Developed a simulation model incorporating milk collection, standardization, and diverse product manufacturing (cheese, butter, powders).
- Quantified volume-related and product-related costs, including fixed operating costs.
- Estimated net milk value and component values (fat, protein) using marginal rate of technical substitution.
- Evaluated two product portfolio scenarios (2000 and 2008 Irish milk pool) with three distinct milk compositions (Irish Holstein-Friesian, Jersey, New Zealand Holstein-Friesian).
Main Results:
- The model successfully estimated product yield, net milk value, and component values under different scenarios.
- Jersey milk consistently demonstrated a higher value per liter compared to Irish and New Zealand Holstein-Friesian milk in both scenarios.
- Scenario 2 (2008 product mix) generally resulted in higher milk values per liter than Scenario 1 (2000 product mix).
Conclusions:
- Milk composition significantly impacts processing costs, product yield, and overall milk value.
- The product portfolio plays a crucial role in determining the economic returns from milk processing.
- The developed model provides a valuable tool for dairy processors to optimize operations and assess the economic implications of milk sourcing and product diversification.
Related Concept Videos
01:27Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
01:27Microorganisms in Agriculture and Food industry
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
01:08Cloning of Dolly the Sheep
The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter telomeres than other...
01:28Pasteurization and Food Preservation
Pasteurization is a widely employed thermal processing technique designed to enhance the safety and shelf life of perishable food and beverages. By subjecting products to specific high temperatures for controlled durations, this method effectively inactivates pathogenic microorganisms and spoilage enzymes without significantly compromising sensory qualities. The technique has been pivotal in food safety management, especially for consumables susceptible to microbial contamination such as milk,...
01:30Production of Pharmaceuticals
Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under sterile, tightly...