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Study of Fatty Acid Composition in Oils & Fats by Ft-Ir and Gc-Ms Techniques

Thesis Info

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External Link

Author

Kandhro, Aftab Ahmed

Program

PhD

Institute

University of Sindh

City

Jamshoro

Province

Sindh

Country

Pakistan

Thesis Completing Year

2010

Thesis Completion Status

Completed

Subject

Chemistry

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/1264

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727372594

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The dramatic rise in coronary heart disease, high blood pressure, stroke, hypertension, diabetes, obesity certain cancers, rates among every aged men particularly adults and children over the past two decades has become a major public health concern. Its is observed that these changes occurred due to unbalanced diet, food containing high amount of saturated and trans fatty acids, re-using of frying oils in restaurant, fast food shops, stuff frying in low quality oils and fats, high consumption of cereal based food, mayonnaise, butter, margarine, biscuits, chips, snacks, ice-cream, etc. these like products containing high level of saturated fat and trans fats. A monitoring, treatment and labeling of oil quality is one most important job for the controlled or the resolved these problems. As well as a special techniques and method should be developed for to overcome these healths related problem, in present work, a rapid Fourier transform infrared (FTIR) spectroscopic trans fat (TFA) method was developed assessed for monitoring and analytical purpose. The application of Fourier transform infrared (FTIR) spectroscopy and Gas chromatography coupled with mass spectroscopy in the assessment for the quality, stability and the determination of the and type saturation and unsaturation of oils, fats and some selected food samples was investigated. In fact, Fourier-transform infrared (FTIR) represents an important tool used for quality control and monitoring process in the food industry due to the cost effectiveness, improved performance and ease of use compared to other methods. It offers a powerful, rapid, reliable method of identifying the quality and origin of foods, detecting contaminated or adulterated products, or discriminating between different types of foods. Because FT-IR analysis is a physical, nondestructive method, no reagents are required and no chemical waste is produced. Various kinds of sampling accessories are available for FT-IR measurements in the transmission, transflection, or reflection mode, and thus a broad range of solid and liquid samples can be analyzed with minimal or no sample preparation. Using this system, an FTIR and GC-MS qualitative and quantitative determination of fatty acid composition and including trans fatty acid, in the fats and oils. The obtained results compared with GC-MS. the FTIR developed methods shown the similar in accuracy, and reproducibility to the GC-MS obtained results. Determination of fatty acid composition, trans fatty acids, Free fatty acids and fat contents of some selected Pakistani product such as margarines, biscuits, potato chips and cereal based foods were also analyze by gas chromatography-mass spectroscopy in present work for the obtaining of true value of oil and fats stability and purity. It is observed that samples contains high amount of saturated and trans fat in maximum variety of the samples. On the other hand there was no labeling on the product.
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اک کلاس فیلو کی فرمایش پر

اک کلاس فیلو کی فرمایش پر

میں کتنا پاگل لڑکا ہوں
پیار جو تم سے کر بیٹھا ہوں

پیار تو نیند چُرا لیتا ہے
پیار تو چین چُرا لیتا ہے
پیار میں درد ہی بس ملتا ہے
پیار میں اور نہیں کچھ رکھا

میں کتنا پاگل لڑکا ہوں
پیار جو تم سے کر بیٹھا ہوں

کون جو پیار میں جیت سکا ہو
پیار تو دھوکا ہی دھوکا ہے
پیار بھی وہ جو یک طرفہ ہو

میں کتنا پاگل لڑکا ہوں
پیار جو تم سے کر بیٹھا ہوں

تفسیر الدر المنثور فی التفسیر با لماثور میں بعض موضوعی روایات کا علمی اور تحقیقی جائزہ: سورۃ النساء تا سورۃ المائدہ

Jalal-ud-Din Abdur  Al Rahman ibn Bakr-Suyuti who has written a well-known Tafseer Al-Durr Al-Man’thur  fi al-tafsir Bil-Ma’thur. This is a big treasurer of explanatory traditions but unfortunately he has quoted some fabricated narrations in this tafseer which caused doubt about the validity of his commentary. This article deals with the some fabricated report.

An Analysis of Procedural Justice in Performance Management System of Private Sector Firms

Procedural justice in performance management system is meant or creating and maintaining a comfortable and productive working environment for all the employees where they could perform to the optimum level with a perception of fairness and balance in the effort and reward structure within the overall context of performance management system. `In general, procedural justice means fairness / honesty in different functions of a system-. Procedural justice in performance management system has been a key area of interest for the researchers and practitioners. A lot of research has been carried out in this area and some of it has been in the recent years. This is even more important in today's volatile business world where the absence of justice in performance management system can cause a negative word of mouth, decrease in motivation, high turnover ratio, conflicts and intra- organizational politics including introduction of worker unions etc. Non availability of procedural justice in performance management system is also one of the main areas of concern for the employees and especially for those in the private sector of Pakistan where economic downturn and political instability of the country has contributed to the employees' insecurity in the workplace especially in the private sector. Managers have their own perspective about performance management which is equally important and needs proper understanding. This research was aimed at understanding the perspective of both the employees and managers in the private sector. Two hypotheses were proposed for creating a model and for proving the significance of relationship among important variables. One of the hypothesis which was taken from the proposed new model on procedural justice identified few important components for creating and delivering a procedurally just performance management system. The second hypothesis was taken from the work of (Taylor, Renard and Tracy, 1998) which was linked with the new model for it partial replication. This research was conducted under the parameters of a professional research methodology. Initially the managers and business owners of private enterprises were contacted for the initial interviews for having a need analysis of this research. Data collection was done through two separate questionnaires where one of the questionnaires was for the employees of private organizations and the other one was for the managers of the private organizations. Similarly the questionnaire that was for the employees was constructed from the variables of first hypothesis and the questionnaire that was for the managers was constructed from the variables of the second hypothesis. This was done by the proper operationalization of the research concept and by identifying all the related research dimensions. It was a cross sectional and generalizable study with an overall population sample of two hundred. Data was collected from fifty managers and one hundred and fifty employees who were all from private sector of Pakistan. Pilot Test was conducted at an earlier stage for finding acceptable values of Cronbach Alpha for all the items of two questionnaires. Five Point Likert Scale was used for the proper coding of data on SPSS. Chi Square Test was applied on the collected data of both the questionnaires for proving the research concept through quantitative means. Frequency distributions and bar charts for each item have been given as well. Findings of this research work have identified the potential obstacles for the implementation of a justice based performance management system in private firms. The results of this research match with the practical observations and also with the past research. In the overall perspective, this research recommends the use of new research based model on procedural justice proved in this research for both the practitioners and academia. So this fact has been established that a positive contribution of the factors like willingness of top management, pre appraisal training of assessors, representing the post appraisal voice of employees, periodic performance feedback and accountability of assessors will surely enhance the procedural justice in the performance management system. This procedurally just system can be helpful for the organizations for better satisfaction with the system, improved working conditions and lesser distortion of appraisal results. Finally some useful recommendations have been given for the benefit of ractitioners and academia. It can be useful for the practitioners to have a gap analysis for the current and required level of procedural justice for their organization. This research puts a clear emphasis of the use of those variables which make a procedurally just system with its distinct benefits for an organization.