Search or add a thesis

Advanced Search (Beta)
Home > Development and Quality Assewssment of Low Fat Mozzarella Cheese

Development and Quality Assewssment of Low Fat Mozzarella Cheese

Thesis Info

Access Option

External Link

Author

Sattar, Muhammad Umair

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Subject

Food Science & Technology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/9880/1/Muhammad_Umair_Sattar_Food_Technology_2016_UAF_HSR_10.01.2017.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676725861084

Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.

Similar


study was planned to explore fat mimetic potential of different hydrocolloids (guar gum, xanthan gum, gum acacia and corn starch) in Mozzarella cheese and to investigate combined impact of hydrocolloids and homogenization as fat reduction strategies on the low fat Mozzarella cheeses (LFMCs) quality. Research project was conducted in three phases. In phase-I best levels while in phase-II best combinations of different hydrocolloids were selected on the basis of cheese functionality and yield. In phase-III, LFMCs were manufactured by using selected levels (Phase-I) and combinations (Phase-II) of hydrocolloids with and without cheese milk homogenization (2000 psi at 45°C). Non-homogenized (NH) and homogenized (H) milk Mozzarella cheeses (FF= Control and LFMCs included HF= Negative control; GG= 0.15% guar gum; XG= 0.15% xanthan gum; GA= 0.30% gum acacia; CS= 0.50% corn starch; G:C= 50% of the selected level of guar gum and corn starch; C:G:G= 33% of the selected levels of corn starch, guar gum and gum acacia) were analyzed for physicochemical parameters, functional attributes, texture profile, expressible serum, water activity, proteolysis, microstructure, baking performance and sensory properties during 90 days ripening. Results showed that use of hydrocolloids as fat replacer significantly (p<0.01) affected the fat, moisture, protein, ash and Ca contents in LFMCs. Cheese milk homogenization significantly (p<0.01) increased the fat contents but decreased the moisture, protein and Ca. Fat content in FF was 18.50% (NH) and 19.12% (NH) whereas it ranged between 8.20 to 10.40% in non-homogenized and 8.83 to 10.80% in homogenized milk LFMCs. Cheese ripening significantly (p<0.01) decreased the moisture and pH value but increased the protein, acidity and Ca. Highest meltability was found in FF (58.6 mm for NH and 59.8 mm for H) followed by GG (52.1 mm for NH and 53.1 mm for H) which increased significantly (p<0.01) during ripening. Addition of hydrocolloids and homogenization significantly (p<0.01) improved the cheese stretchability as all hydrocolloids containing LFMCs exhibited higher stretchability (39.8 to 43.1 cm for NH and 39.9 to 44.1 cm for H) as compared to HF (36.6 cm for NH and 36.8 cm for H). Cheese stretchability increased during ripening only up to 60 days after that significant (p<0.01) decrease was observed in all treatments. The texture profile of LFMCs differed significantly (p<0.01) due to addition of hydrocolloids and cheese ripening. FF cheese showed lower values for all textural parameters (hardness, cohesiveness, springiness, gumminess, chewiness) as compared to LFMCs. Increase in ripening period decreased the values of all textural parameters of LFMCs. Homogenization of cheese milk produces LFMCs which were soft, less in springiness, gumminess and chewiness when compared with their corresponding non-homogenized milk LFMCs. Expressible serum (ES) in LFMCs was significantly (p<0.01) affected by all variables. Addition of hydrocolloids improved the ES level in LFMCs as among all hydrocolloids containing LFMCs GG exhibited the highest ES values (18.68 g/100g for NH and 19.85 g/100g for H). The pH 4.6 and TCA soluble N increased significantly (p<0.01) with cheese ripening. Electrophoresis and reverse phase HPLC results indicated that level of intact casein in LFMCs decreased with increase in ripening period. Micrographs obtained from Electron microscopy indicated that the size of serum channels reduced and cheese structure becomes more homogenous with ripening and cheese milk homogenization. Color L* value in LFMCs increased with the addition of hydrocolloids when compared with HF and homogenization of cheese milk significantly improved the LFMCs appearance (L* value) before and after baking. Sensory evaluation based on cheese flavor, texture and appearance showed that GG, GA and G:C were very similar to FF. Homogenization of cheese milk improved all sensory attributes and cheese ripening improved the flavor and texture upto 60 days. In conclusion, use of guar gum (GG), gum acacia (GA) and combnation of guar gum and corn starch (G:C) along with cheese milk homogenization offers a perspective to reduce fat in Mozzarella cheese without compromising its quality.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

دنیا بڑی مکار

دنیا بڑی مکار
ہر دم رہیں چوکنا یار
اکھاں کھول ٹریں دلدار
کسے وی تینوں معاف نہیں کرنا
پھر توں رونا دکھڑے جرنا
خالی بھانڈا عقل دا بھرنا
فیر سوچنا اے بیکار
اس دنیا نوں سمجھ توں بھائی
اندر وڑ کے کرن صفائی
رب رسول دی بات بھلائی
ایہہ دنیا ہے بڑی مکار
ایہہ دنیا سب دھوکے بازی
عشق مجازی تلکن بازی
نہ اوہ شہید تے نہ اوہ غازی
دنیا نال جو کردا پیار
ہر پاسے ہے افراتفری
پھردی اے ابلیس دی نفری
زندگی ہر دی اوکھی بسری
نہ ملیا چین قرار
گھر گھر ہوندی پئی بدخوئی
مہر محبت اُٹھ گیوئی
ہر دم دیندا یار دھروئی
توبہ اللہ استغفار

بھانویں گھر وچ ہون نہ دانے
کیبل چلدی ، وجدے گانے
ٹر گئے یار اوہ لوگ سیانے
آوے گھنگرو دی چھنکار

رناں روز بازار نوں جاون
اوتھے جا ایہہ خوشیاں پاون
کھڑ کھڑ ہسن ناں شرماون
ہوون ناں اوتھے بیزار

شادیاں دے کیہو جئے وطیرے
داج چ منگن موتی ہیرے
کھجل ہوون سب بے پیرے
پر نہیں کر دے گفتار
کڑیاں منڈے کالج پڑھدے
ہر کوئی تکے نکلدے وڑدے
چنگے لوکی ویکھ کے سڑدے
میری توبہ ہے لکھ وار

مطلب دی ہن رہ گئی یاری
مہر محبت اٹھ گئی ساری
ہر نے جانا وارو واری
قبر کریندی نت پکار

بھرے بازار مسیتاں خالی
اُجڑے باغ تے روون مالی
ہر جا ہوئی اے بدحالی
ہووے شالا فضل غفار

مسجد نوں آباد نہ کردے
ڈیریاں دے وچ حقے دھردے
رب رسول توں مول...

The Philosophical Perspective in Case of Jihad

Here are two opposing views of scholars and different religions regarding the permission or non-permission of war on the basis of honor and lawfulness of human life. The Hindus and Jews legalize war, whereas the Buddhists and Christians consider it illegal. Islam follows the middle path and attributes the legality of war to its purpose because only the purpose tells the righteousness or wrongfulness of any deed. Islam has prevented from all those purposes that eliminate the cause of Allah Almighty from war. Islam does not legalize war for any worldly purpose so the pursuit of fame, kingship, booty, conquering another land or national or personal revenge is not legal. Jihad has been enjoined for the elimination of hurdles in the path of Allah. It clarifies the policy of Islam that war is not an end but it is a means to an end. Today the west is doing propaganda against Islam that Islam spread through sword and the concept of jihad is being related to terrorism. The purposes of jihad should be kept in mind in order to understand the philosophy of jihad. The aim of this paper is to highlight the purposes of jihad and its importance. Views of various scholars have been observed in this study along with references from Quran and Hadith.

Optimization of Dedicated Natural Gas High Comp. Spark Ignition Engine for Maximum Efficiency and Minimum Emission

All around the world the number of automobiles has increased many folds (about ten times) in the last fifty years which resulted in an enormous increase in urban pollution level especially in developing countries. Pakistan has been considered as the most urbanized country in South East Asia with about 36% of Pakistan‟s total population is residing in towns & cities. It has been estimated that an average vehicle in Pakistan emits 20 times more unburned hydrocarbons (UHCs), 24 times as much carbon monoxide (CO) & about 3.6 times more oxides of nitrogen (NOx) when compared to an average vehicle in U.S. Furthermore the scarcity of conventional fuels also propelled the world to explore alternative fuel options with same or preferably less environmental implications. Natural gas is rated as high octane alternative fuel with octane rating of 120~130 and exhibiting clean burning characteristics. It is possible to attain increased efficiency from natural gas because of its high octane value with the increase of the compression ratio of the engine. Further the improved combustion efficiency of natural gas fuel also reduces the tail pipe pollutant emission. The focus of this research is to suggest the optimum compression ratio at which the performance of dedicated natural gas engine can be optimized. A 2.5 L Diesel Engine was selected and converted to run solely on natural gas as dedicated mode by incorporating spark plugs, electronic ignition control system, and CNG fuel metering system. Different piston sets were modified to obtain selected compression ratios. Based on the literature review, compression ratios were 11, 12, 13 & 14 had been selected. The temperature gauges were installed in the cooling water circuit and exhaust manifold to measure the water & exhaust gas temperatures. The engine was then tested on dynamometer for performance & exhaust emission. The readings of NOx, CO, UHCs at 1000, 1500, 2000, 2500 and 3000 rpm at selected compression ratios were taken by using 5-gas exhaust gas analyzer. For emission testing, steady-state test profile was generated. Exhaust gas temperatures were also recorded at different rpm settings at selected compression ratios. The results have been plotted and normalized by power. Based on the engine performance, the compression ratio of 13 has been selected as optimum compression ratio for dedicated CNG engine. For further reduction of engine exhaust emission Three-Way Catalytic simulation through Chemkin software has been carried out and the performance parameters were also predicted through simulation using single-zone thermodynamic model.