This work aimed at evaluating the influence of enzyme concentration, temperature, and reaction time in the lactose hydrolysis process in milk, cheese whey, and whey permeate, using two commercial β-galactosidases of microbial origins. We used Aspergillus oryzae (at temperatures of 10 and 55°C) and Kluyveromyces lactis (at temperatures of 10 and 37°C) β-galactosidases, both in 3, 6, and 9 U/mL c...

BACKGROUND Microbial milk-clotting enzymes are valued as calf rennet substitutes in the cheese industry. The worldwide increase of cheese production coupled with a reduced supply of calf rennet has prompted a search for calf rennet substitutes, including microbial and plant rennets. However, most plant rennets have proved unsuitable because they impart a bitter taste to the cheese. Microbial re...

Milk protein concentrate (MPC) manufacture utilizes ultrafiltration to produce partially or completely delactosed high protein dairy ingredients. A variety of products are available in the liquid or dried form and range in protein content on a dry basis from 56 to 85%. The protein in MPC is a mixture of native casein and whey protein at a concentration of 80 and 20% of the total protein, respec...

in this study, the optimum combination of major factors affecting the acceptability of whey-based ricotta cheese i.e. fat at three levels (0, 5, 10%), salt at three levels (0, 1, 2%), and starter culture at two levels (0, 3%) was determined in a complete randomized design method with a factorial experiment. ricotta cheese trials made by mixing whey and milk in a ratio of 5:1 were then organ...

A concentrated form of cell free extract (CFE) derived from attenuated Lactococcus lactis supsb. lactis 303 CFE was encapsulated in liposomes prepared from two different proliposome preparations (Prolipo Duo and Prolipo S) using microfluidization. Entrapment efficiencies of 19.7 % (Prolipo S) and 14.0 % (Prolipo Duo) were achieved and the preparations mixed in the ratio 4 (Prolipo Duo):1 (Proli...

Our objective was to determine if annatto color or bleaching had any influence on ultrafiltration (UF) flux during production of 80% whey protein concentrate (WPC) or 80% serum protein concentrate (SPC). Cheddar cheese whey (18 vats using 900 kg of whole milk each) and microfiltration (MF) permeate of skim milk (18 processing runs using 1000 kg of skim milk each) were produced. The 18 runs were...

Objective: Whey protein is a byproduct of dairy industry, where cheese and casein are manufactured.This is the major protein content which is loss during the formation of yogurt and cheese. Methods: If this is added to the diet then that can enhance the nutritioal value for the diet, which will be very usefull. Results: In this study we try to find it out that the whey protein has the antibioti...

 Background: Plastic and polymeric materials remain in the soil given the fact that they are derived from petroleum resources. However, such pollution has created a special challenge for human societies. The use of biodegradable packaging has received more attention. The general purpose of this study was to investigate the use of a mixture film of whey protein concentrate and reinforced hydroxy...

Cheese is the most complex of the dairy products, involving chemical, biochemical and microbiological processes. The steps in all cheesemaking include milk acidification, milk coagulation, whey removal, packaging and storage. Most cheesemaking also includes heating the cheese curd and salting the curd. Even slight changes in these processes can lead to significant differences in the final chees...