Home > Inter-Provenance Variations in the Physicochemical and Antioxidant Attributes of Various Varieties of Cotton Gossypium Hirsutum L. Seed Oil from Punjab, Pakistan
Inter-Provenance Variations in the Physicochemical and Antioxidant Attributes of Various Varieties of Cotton Gossypium Hirsutum L. Seed Oil from Punjab, Pakistan
In the present work, the seeds of six local varieties (CIM-496, N-121, Z-33, AA-802, Desi, and CIM-534) of cotton (Gossypium hirsutum L.) harvested from three different provenances of Punjab (Bahawalpur, Bahawalnagar and Rahim Yar Khan districts) were investigated to characterize and compare their proximate composition as well as physicochemical and antioxidant characteristics. The amount of oil and protein in the tested seeds varied from 13.11 to 18.35% and 20.13-28.04%, respectively, revealing significant (p< 0.05) differences among varieties analyzed. While the contents of fiber (20.29-21.53%), ash (3.45-5.08%) and moisture (6.36-8.44%) did not vary notably. The physicochemical properties includingdensity (24 ºC) 0.9019-0.9208 (g mL-1), refractive index (40 °C) 1.4601-1.4632, saponification value 177.01-190.28 (mg of KOH/g of oil), free fatty acids 3.35-4.41%, iodine value 100.54-109.54 (mg KOH/g oil), unsaponifiable matter 0.49-0.58% (w/w) , and color (1-in.cell) 12.01-13.04 R + 63.61-68.11Y of the extracted cottonseed oils (CSOs) were recorded. The oxidation parameters of CSOs, as assessed by estimation of conjugated dienes, conjugated trienes, peroxide value, para-anisidine and induction period (Rancimat, 20 L h-1, 120 °C), were noted to be 2.11 to 2.61, 0.91-0.99 , 1.71-2.07 (meq kg-1 of oil), 2.00-2.31and 3.19-3.62 h, respectively. The CSOs were found to contain mainly linoleic acid (48.94 to 50.46%), followed by palmitic acid (24.42-25.86%), oleic acid (17.81-23.15%) and stearic acid (2.49-2.81%). The contents of α, γ and δ tocopherols in the CSOs were 125.47-296.20, 195.20-364.25 and 2.10-5.81 (mg kg-1), respectively. Total phenolic contents (TPC) and DPPH radical scavenging capacity of CSOs was recorded to be 1.32-0.94 (mg GAE/100g of dry matter) and IC50-1.00-2.18 (µg mL-1), respectively. A number of physicochemical and antioxidant parameters of the tested oils varied significantly (p<0.05) among the varieties analyzed that might be attributed to agro climatic variations and the genetic makeup of the cotton plants. Moreover, different solvent extracts produced from defatted cotton seeds (oilseed residues) were evaluated for antioxidant attributes in terms of measurements of TPC (0.94-3.80 mg GAE/100g), total flavonoids (TF) (0.62-2.45 CE mg/100g), DPPH radical scavenging capacity (IC50) (1.03-2.15 µg mL-1), percent inhibition of linoleic acid peroxidation (39.82-88.05%) and reducing potential (0.14-0.48 mg mL-1). These data demonstrated the defatted cotton seeds to be a potential source of natural antioxidants. Generally, the aqueous alcoholic extracts of the oilseed residues exhibited superior antioxidant activity and phenolic amounts advocating the selection of these extraction solvents for optimum recovery of cottonseed antioxidants. The results of the present analytical study can be helpful to select appropriate cotton varieties for harvesting under local agroclimatic conditions so as to explore their functional food and nutraceutical applications.
ترجمہ کی اہمیت ترجمہ : ایک زبان میں لکھی ہوئی تحریر کو دوسری زبان میں منتقل کرنا ترجمہ کہلاتا ہے۔ ترجمہ کی اہمیت: ترجمے کی روایت ہی ہمیں دوسری قوموں اور ممالک کے احوال و حالات سے آگاہی ہوتی ہے۔مثلا پہلی اور دوسری جنگ عظیم کے دوران ہونے والے واقعات ترجمہ نگاری کے بعد ہی ہم تک پہنچے ہیں۔ موجودہ زمانے میں پریس ریلیز کے ذریعے بیان جاری کیے جاتے ہیں اور ہمارے صحافی ان کو ہماری زبان میں ترجمہ کرتے ہیں۔ ترجمے ہی کے ذریعے سے دوسرے ممالک کے حالات حاضرہ کے بارے میں ہم جان پاتے ہیں۔ موسم، کھیلوں، تفریح اور کاروبار کے بارے میں جان پاتے ہیں۔عالمی سطح کی علمی و ادبی سرگرمیاں جو بین الاقوامی سطح پر وقوع پذیر ہوتی ہیں وہ بھی ترجمہ نگاری کی وجہ سے ہم تک پہنچتی ہیں۔ادب کی مختلف اصناف اور دنیا میں ہونے والی مختلف ادبی سرگرمیوں کے بارے میں آگاہی بھی ترجمہ نگاری کے ذریعے ہی ممکن ہو پاتی ہے۔ تنقید کی وجہ سے ادب میں آنے والی تبدیلیوں کی وجہ یہ ہے کہ ہم نے غیر ملکی ادب کو ترجمہ کرنے کے بعد پڑھا۔ترجمہ نگاری کے لیے تنقید کی اہمیت بہت زیادہ ہے۔ اسی طرح تحقیق کے لیے استعمال ہونے والے آلات کی وجہ سے ترجمہ نگاری کی اہمیت روز افزوں بڑھتی چلی جاتی ہے۔ کسی بھی علاقے اور معاشرے کے مزاج کے حوالے سے آگاہی بھی ترجمہ کیذریعے ہوتی ہے۔ ترجمہ کے ذریعے سے ہی کسی علاقے کی تاریخ کے بارے میں جانکاری حاصل ہوتی ہے۔ معاشرے کے رسم و رواج ، معمولات کا پتہ بھی ترجمہ نگاری سے چلتا ہے۔ ترجمہ نگاری کے ذریعے سائنسی ایجادات اور نت نئے تجربات سے واقفیت ہوتی ہے۔ مسلمان سائنسدانوں کی تحقیقات کا نچوڑ یعنی ان کی کتب کا ترجمہ کرکے اہل یورپ نے ان سے بھرپور...
Although the contribution of Ahmad Shoq┘ to Arabic literature, particularly to its poetry which is praised everywhere, which made him an authority and gained him the honor, yet there is a great contradiction between his fames and opposition; the fames accept him as lord of the poets while the opposition deny this status and title him as the poet of the lords. These contradictions made an unsatisfactory condition amongst the scholars about his personality and the contributions he added. The question is that; how much reality has the opinion of the denier? This article provides the evidences taken from his poetry and proves the realities about the blames raised by the opposition, and then solves the matter. It also makes a reader convinced to accept it, but not to forget the contribution made by this great poet of a great language with a huge literature.
The paper examines the effect of Corporate Governance and Corporate Social Responsibility on firm’s performance in the listed companies of Pakistan Stock Exchange in the presence of Corporate Philanthropy. The study employs yearly data spanning over the period of 2004 to 2017. Variables such as Corporate Governance, Corporate Social Responsibility and Firm Specific Variables serve as independent variables, Corporate Philanthropy as a moderating variable and firm’s performance proxies by Earning Yield, Tobin’s Q, Return on Assets and Return on Equity as dependent variables in the model. Data has been extracted from Annual reports of the firms, Security &Exchange Commission of Pakistan, Pakistan Stock Exchange and Pakistan Center of Philanthropy. Results deduced that Corporate Governance and Corporate Social Responsibility have significant effect on firm’s performance. The data has been analyzed with a view to check cause and effect relationship by using Multivariate Panel Data Analysis. Generalized Method of Movement (GMM) / Dynamic Panel Method (DPM) method is used to ensure that there are no issues of Reverse Causality, Feedback affect, Endogeneity and Simultaneity. Firm Age, Leverage, Board Independence, CEO Duality, Miscellaneous Project of Social Responsibility, Cash Donation, Earthquake and Natural Disaster have negative impact on firm’s performance i.e. Earning Yield, Tobin’s Q, Return on Assets and Return on Equity. However, Firm Size, Education Sector, Infrastructure Development, Charity in shape of material and Miscellaneous Project of Philanthropy have positive impact on firm’s performance. Mixed results were found in case of Board Size and Corporate Social Responsibility. While considering the Earning Yield and Return on Assets as a firm’s performance, Board Size has negative and Corporate Social Responsibility has positive impact on Earning Yield and Return on Assets. The role of Corporate Philanthropy as moderator between Corporate Governance and firm’s performance is also significant. Corporate Philanthropy represents negative significant moderating effect in relation with Firm Age, Firm Size and Leverage; moreover, it has positive significant moderating effect in relation to Board Independence and Board Size. Results also reveal that Cash Donation, Infrastructure Development and Natural Disaster show significant positive moderating effect on Board Independence with firm’s performance. Similarly, Infrastructure Development and Miscellaneous Project of Philanthropy have also shown positive moderating impact on Board Size and Firm Size with firm’s performance. After using the GMM / DPM technique, three out of five different settings of Corporate Governance, Corporate Social Responsibility and Firm Specific Variables on firm’s performance in the presence of Corporate Philanthropy encountered problem of Reverse Causality, Feedback’s influence, endogeneity and simultaneity. These results showed no variation from previous findings except Corporate Social Responsibility has positive significant impact on firm’s performance. Results confirmed that Corporate Philanthropy moderates the relation between Corporate Governance and firm’s performance. Results reveal that Market based measures (Earning Yield and Tobin’s Q) are more dynamic in nature. Nonexistence of standard format for reporting philanthropy data poses difficulty in making rational analysis and developing uniformity basis for all the firms. The philanthropic contribution of any organization is attributed towards the enhancement of firm’s performance. Results unfold that this study will be a guideline for regulatory bodies to formulate a comprehensive policy framework to Pakistan Stock Exchange so that uniformity of reporting philanthropy should be adhered.