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العنوان
Attempts to Reliquify Coagulated Milk /
المؤلف
Nabeel Basyoni El-Gaml
هيئة الاعداد
باحث / نبيل بسيونى الجمل
مشرف / H. M. غالب
مناقش / لطفى عبد المطلب
مناقش / M. خليفه
الموضوع
Dairying.
تاريخ النشر
2000.
عدد الصفحات
262 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الزراعية والعلوم البيولوجية (المتنوعة)
تاريخ الإجازة
1/1/2000
مكان الإجازة
جامعة طنطا - كلية الزراعة - Dairying
الفهرس
Only 14 pages are availabe for public view

from 283

from 283

Abstract

Thousands of years ago, man grew cattles to benefit them in his own primitive living. Even at those eras, milk enjoyed tile most striking features in these benefits, as being a satisfactory delicious food which can be simply afforded daily. Thus, he adhered to keep that benefit unspoiled, but his incapable hcilities did not enable him, by aii the means. By the progress of long times later, man’s intuition led him to process some simple arrays of miik products, as a means to save milk before spoilage. Yet, his problem of unspoiled milk usage for longer periods was still unsolved. The nut became harder to be cracked when populations were increased and milk was transported to some neighbouring districts as an exchanging commodity. A quick wide jump in episodes to those of the nineteenth century, it was the first time in 184 I to reveal by FUCHS that the development of acidity and other undesirable changes in raw milk occur by microorganisms. In our temporary age, the application of 3 Cs (cleaning, cooling and control) has almost solved the problem of spoiled raw milks in developed countries, however. In developing countries, like Egypt, the image is fairly different. The application of the above systems is already adopted in big ~airieasn d farms. Yet, such dairies or farms do not represent the majority in this country. The realistic situation gives the majority to those thousands of small or medium dairies and farms; where this system is relatively absent. Even all raw milk assembling points in Egyptian countryside, many milk collecting centers, most retail raw milk shops, and most retail milk bicycle retailers ; do not possess refrigeration facilities at least and the third C (control) is not practised as it should be. Accordingly, thousands of produced raw millt are completely coagulated and, thus, spoiled ; to be disposed as wastes. The matter aggravates much in summer season, which occupies a good deal of months all over the year in a subtropical country like Egypt. It may be worthy to state here that ambient temperature in such months may frequently reach 40•‹C (1 04OF) and sometimes above. The disposal of such huge amounts of coagulated millts in municipal sewerage networlts, drains, waterway, seas, lakes, ..... . . . . etc ; is not certainly restricted to those lost millions of Egyptian ltilogralns anually, but extends to those anlazing quantities of added BOD to such receivers of disposal. Injuring water lives (fish, sponge, algea, .... etc), ecological pollution, more costs for municipal waste treatment stations; are amongst the injuries of such added BOD. The above shown dimensions essentially embodies the problem of spoiled coagulated milk as a national dramatic problem, at any rate, which should attract the attention of dairy reachers to inevitably find a solution through an integrated plan. Such a solution should be simple to match the modest experience of those facing the problem in a developing country equally to their available equipment. It shoilld not be costing enough in application, as well. The work reported hereill is an initiation to the contributions proferred to that plan. In the map of this plan, attempts are extended to fluidicate that spoiled coagulated millt, whether buffaloes or cows, to be used again as unspoiled raw inilks as far as possible, witl~in the above indicated realms of the sought solution. Backing again the precipated casein to its original colloidal statement through raising its low pH, which was resulted from the progressed acidity, to The pH of normal milk; is the pillars of those current attempts. The usage of some selected weak alltalis was thought in this regard. Informant analytical data will decide for or against the prosperity of those thought attempts. Within the pondering limits of the above portrayed image, present work was arranged to be executed as hereunder : Part (I) : Individual Alltaii Trials in Buffalo’s and Cow’s Milks. Part (11): Combined Alltali Trials. (Part (111): Modified Combined Alltali Titres Trials.