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Comparative Study of Microbiological and Chemical Pretreatments on Arundo Donax Their Impact on Bioethanol Yield

Thesis Info

Author

Muhammad Tariq Khan

Supervisor

Mhuammad Umer

Department

Department of Biosciences

Program

RMI

Institute

COMSATS University Islamabad

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2017

Thesis Completion Status

Completed

Subject

Biosciences

Language

English

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676719667282

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قانون کے ساتھ بڑے لوگوں کا کھلواڑ

قانون کے ساتھ بڑے لوگو ں کا کھلواڑ

                مصنف نے  ایسے طبقے کا ذکر کیا ہے جو ان لوگوں کو راضی رکھنا فرض سمجھتے ہیں جن سے ان کو کام رہتا ہے۔زیادہ تر گورنمنٹ کو راضی کرنے کے لیے گاؤں کے لوگوں کو نواب اور ذیلدار خود ہی اپنے طور طریقے سے سنبھال لیتے ہیں اور اس بات کی خبر بھی گورنمنٹ کو لگنے نہیں دیتے۔ اس طرح کچھ کو تو انصاف مل جاتا مگر زیادہ تر لوگ اپنی بات کو دل میں ہی دبا کر صبر کرلیتے ہیں۔ نواب اور ذیلدار بھی اپنی اپنی ذات میں اتنے مگن ہوتے ہیں کہ اپنے ماتحت کام کرنے والوں کے سپرد اپنی رعایا کردیتے ہیں۔ اس طرح غریب کی آواز گورنمنٹ تو کیا خود نواب تک بھی نہیں پہنچ پاتی۔ مصنف نے اس درد کو محسوس کیا کہ لوگ کس طرح اپنے حق کے لیے بھی آواز نہیں اٹھا پاتے اور اپنے حق سے دستبردار ہو جاتے ہیں۔معاشرے میں مختلف طبقات کا ہونا بھی ایک حقیقت ہے۔ یہ ایک بہت بڑی سچائی ہیکہ دنیا اختلاف رائے  پر قائم ہے۔ہر کوئی مختلف ہے رنگ، نسل،  زبان، عقائد، امیر، غریب، چھوٹا، بڑا، مختلف رنگ و نسل سے تعلق رکھنے والے مختلف قبائل کے لوگ ریگستانوں، دریاؤں، پہاڑوں،میدانوں کے باسی اور سب سے اہم مختلف نظریات  اور گروہوں کی شکل میں مختلف سیاسی پارٹیوں اور مختلف قائدین سے وابستہ لوگ۔اس سب کے باوجود ان کو جو چیز آپس میں ایک رکھتی ہے وہ ہے ان کاآپس میں اعتمادو یقین، اداریاور ملکی حکومت اس چیز کی ضامن ہوتی ہے کہ رویے انصاف پر مبنی ہوں اور یہی  انصاف پر مبنی رویے ہی مضبوط  معاشرے کی بنیاد بنتے ہیں۔ مگر وہاں جہاں کوئی ایک گروہ سرکش ہو جاتا ہے تو وہ اپنی اجارہ داری کی صورت میں سارا نظام...

Effect of Microwave Power and Time on Total Phenolic Contents and Antioxidant Characteristics of Microwave Assisted Extracts of Watermelon Rind Powder Microwave Assisted Extracts of Watermelon Rind Powder

Watermelon is gaining importance as a functional food due to its therapeutic effect. The therapeutic effect of watermelon has been reported and has been attributed to antioxidant constitutes. The major component in watermelon rind is citrulline that has a strong antioxidant effect which protect body from free-radical damage. Objective: This study was conducted to investigate the effect of microwave powers (150 W, 300 W & 450 W) and time intervals (1, 3 & 5 minutes) on total phenolic content (TPC) and total flavonoid content (TFC) and antioxidant characteristics i.e. DPPH and ferric reducing antioxidant potential (FRAP) of microwave assisted extracts of watermelon rind powder. Methods: The extracts collected after Microwave assisted extraction (MAE) of watermelon rind wereanalyzed for their antioxidant potential through different tests including total phenolic contents (TPC), total flavonoid content (TFC), DPPH assayand FRAP. Results: Microwave assisted extraction by using ethanol as a solvent at different microwave powers and various time intervals showed that total antioxidant potential was significantly higher at low microwave power such as TPC ranges obtained at 150W for 1, 3 & 5 minutes of time intervals show ranges (159.84, 160.04 & 169.71 mg GAE/100 g). While TFC ranges at 150W for time 1, 3 & 5 minutes were (21.31, 24.15 & 42.20 mg CEQ/100g) whereas DPPH ranges at 150W for time 1, 3 & 5 minutes were (53.14, 54.87 & 68.17 % ascorbic acid inhibition) and FRAP values at 150W for time 1, 3 & 5 minutes were (201.71, 221.50 & 326.43 mg FE/100g). While high microwave power 450W can result in disruption of some antioxidants at various time intervals. Conclusions: Watermelon rind is a rich source of many antioxidants andmicrowave assisted extraction technique should be implemented in the food and nutraceutical industries and microwave assisted extracts of watermelon rind should be utilize for the development of new functional food to combat many health related problems

The Impact of Existing Laws on Marine Pollution in Karachi Harbour a Critical Analysis

Obviously pollution hampers badly to prosper and develop the economy of any nation. This thesis explores the applications of existing laws to control marine pollution specifically in Karachi Harbour/its adjoining & generally in the coastal areas of the country and the difficulties faced in application of existing laws of marine pollution as well as Land Based Sources of Marine Pollution in national waters. Environmental degradation of Karachi & its coastal area is a long standing issue and pollution created by a number of sources is the major contributing factor. It identifies the sources and effects of LBSMP in addition to the problems and associated issues in controlling marine pollution. Amongst all, the deteriorating environment at Karachi Harbour warrants immediate corrective actions in order to curtail further destruction by this menace. Many steps both at Governmental as well as at private level have been taken however, improvement is much awaited that there is no shortage of laws on the pollution control but accomplishment of the same by all concerned agencies and cooperation by public in true letter and spirit is a dream. The prevailing environment cannot be improved without enforcement of existing laws in their true perspective by removing all obstacles and difficulties with creating strong political will, a dire need of time. While investigating major issues of Karachi Harbour & its surrounding coastal areas has been studied critically to found actual facts and figures on pollution related activities/problems causing environmental degradation. A close analysis of the existing laws and many conventions/ has been carried out for correct understanding as non-implementation of laws is held responsible of current alarming situation. It is envisaged that performance based regulation is best suited for the purpose of regulating marine pollution. As per the Global findings 80% of marine pollution instigates from land-based sources and it is naturally trans-boundaries. Many legal and policy based initiatives at international level have been taken to incorporate and to manage the principles to establish international regimes to control the environment of marine as of Land Based Sources of Marine Pollution. However, they have yet not been implemented. This analysis gives an unambiguous and broad picture for correct understanding of the major issues related to the Marine Pollution in Karachi Harbour & its adjoining coastal areas and implementation of existing laws for its mitigation in a true letter and spirit as merits.