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Utilization of Industrial Waste Cheese Whey for the Biosynthesis of B-Galactosidase.

Thesis Info

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Author

Naqvi, Syeda Um-E-Kalsoom

Program

PhD

Institute

Lahore College for Women University

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Environmental Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/12752/1/Syeda_um_e_Kalsoom_Naqvi_Enviro_Science_HSR_2018_LCWU_Lahore_17.10.2018.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676725162483

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The dairy industry is associated with the production of contaminated waste water. The whey disposal remains a serious pollution problem for dairy industry, particularly in developing countries. Direct disposal of whey in the environment creates serious pollution problems, it destroys the physical and chemical structure of soil which decreases the crops yield and if discarded in water bodies, it reduces the aquatic life. The best solution to this environmental problem is the enzymatic hydrolysis of whey by using β-galactosidase which catalyses the hydrolysis of lactose (main constituent of whey) into its basic monomers, glucose and galactose. β-galactosidase can be obtained from different sources like plants, animals and microorganisms whereas bacterial β-galactosidase is generally regarded as safe. The basic aim of present research is to investigate the utilization of dairy industrial waste (cheese whey) as a substrate for the biosynthesis of β-galactosidase to convert environmental waste into useful biomaterial from a noval β-galactosidase producing bacterial isolate from Antarctica. Two hundred and thirty five isolates were obtained from five samples (ice, water and microbial mats) collected from different sites of Antarctica and screened for their ability to produce β-galactosidase by using X-gal. A total of 61 bacterial isolates which turned blue on X-gal were then cultured in R2 medium and Marine medium aseptically at 10˚C for one month. The most potent bacterial isolates were identified using a polyphasic taxonomical approach. Cells were found strictly aerobic, Gram negative, rod shaped, motile and formed creamy white, half transparent colonies. Growth occurred at 4°C to 28°C with an optimum at 20°C, with 0 – 5.0 % (w/v) NaCl (optimum at 0 - 1.0 %) and at pH 4.0 – 11.0 (optimum at pH 7.0 - 9.0). The major fatty acid was C18:1 ω7c. Respiratory quinone was ubiquinone 10 (Q-10). The DNA G+C content was 60.7 %. The polar lipids were phosphatidylglycerol, phosphatidylethanolamine and phosphatidylmethanolamine in addition to three unidentified lipids, one unknown glycolipid, and five unidentified phospholipids. Comparative analysis of 16S rRNA gene sequences showed highest sequence similarity (98.1 %) to Pararhizobium giardinii H152T, P. herbae CCBAU 83011T, and “P. polonicum” F5.1T. In silico average nucleotide identity (ANI) and genome-to-genome distance calculator (GGDC) showed 81.1 % identity (ANI) and 22.6 % identity (GGDC) to the closest relative, “P. polonicum” F5.1T. On the basis of phenotypic, phylogenetic, genomic and chemotaxonomic data, the two strains represent a novel species of the genus Pararhizobium, for which the name Pararhizobium antarcticum sp. nov. is proposed. The type strain is NAQVI 59T LSRP00000000 (=DSMZ 103442T = LMG29675T). Strains NAQVI-58 and NAQVI-59T showed the highest enzyme production (0.21 U/ml) for strain NAQVI-58 and (0.33 U/ml) for strain NAQVI-59 with cheese whey as a substrate at pH (7), 28 ˚C and after 48 hours of incubation respectively. In this study, a new Pararhizobium sp. is discovered by using dairy industrial waste cheese whey as a substrate which is further used for the production of β-galactosidase.
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اسرار احمد آزاد

اسرار احمد آزاد
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اسلام اورہندومت میں احترام انسانیت ایک تقابلی جائزہ Respect for Humanity in Islam and Hinduism A Comparative Review

Every person in the world is respectable because he is a human being. All religions of the world have taught respect for humanity. It will not be wrong if we say that respect is the common heritage of humanity living in the world. Mutual respect is the secret and distinction of the development of nations. How many nations and cultures became enviable simply because they respected each other? In the present era, the dignity of humanity is being trampled everywhere. The murder market is hot everywhere. The standards of human respect are changing, sincerity, truth, human equality, and values ​​are being replaced by deceit, greed, envy, and selfishness. And it is done according to the resources. Man is the best of creation and legitimate respect and honor is his basic right. Therefore, no one can see his self-respect being undermined. That's why it has become very important to bring up topics like respect for humanity and explain the position and status of human beings in the light of religious books so that the respect and dignity of human beings are being trampled underfoot today, people should be made aware of the true status and status of human beings should be informed so that the importance of human blood can be estimated. An attempt will be made in this paper to present a comparative review regarding the respect and reverence that human has for Islam and Hinduism. Keywords: Respect for Humanity, Superior to all creatures, Religion, Islam, Hinduism, Respect, Self-respect

Comparative Study on Different Markers of Metabolic Syndrome in Young Population of Sindh Pakistan

Metabolic Syndrome is an entity characterized by central obesity, fasting raised glucose, lipid disorders, raised blood pressure and insulin resistance. All these features coexist together and lead to diabetes mellitus and cardiovascular complications. Rapid urbanization, modernization and growth in population in developing countries have led to an increase in non-communicable diseases including Metabolic Syndrome. Over the last 20 years, there has been prominent increase in subjects with Metabolic Syndrome. High prevalence is a worldwide trend and available data indicates that 28% to 30% of adult population in most countries can be labeled as having Metabolic Syndrome. The prevalence in Pakistan is between 18% and 46%. This study was conducted on 300 subjects (150 control and 150 having Metabolic Syndrome according to International Diabetes Federation criteria) including males and females aged from 20 to 40 years to detect Metabolic Syndrome with different easily available routine markers like anthropometric (body mass index, hip circumference, waist hip ratio, body fat percentage, visceral fat level and neck circumference), biochemical (serum uric acid, serum insulin, total cholesterol, low density lipoprotein cholesterol and glycated hemoglobin), inflammatory and adipokine including white blood cell count,high sensitivity C reactive protein and serum chemerin. The objective of current study was to find out significant marker for prediction of Metabolic Syndrome. The data were analyzed on SPSS version 22.0. The results of this study showed significantly increased levels of body mass index, waist circumference, hip circumference, waist hip ratio, neck circumference, systolic blood pressure, diastolic blood pressure, body fat percentage and visceral fat level in subjects with Metabolic Syndrome when compared to controls, both in males and females with p value < 0.0001. Biochemical parameters like total cholesterol, low density lipoprotein cholesterol, triglycerides, serum uric acid, glycated hemoglobin, fasting blood glucose, serum insulin and homeostasis model assessment Insulin resistance were also found significantly increased in subjects of Metabolic Syndrome when compared with controls while high density lipoprotein cholesterol was found significantly decreased in Metabolic Syndrome subjects compared to controls. Adipokine and inflammatory parameters like chemerin, white blood cell count and high sensitivity C reactive protein were significantly increased in Metabolic Syndrome subject when compared with controls. Anthropometric measurements like body mass index, hip circumference, waist hip ratio and visceral fat level were highly correlated with components of Metabolic Syndrome. Furthermore, among Inflammatory, adipokine and Biochemical Parameters, serum uric acid, chemerin, high sensitivity C reactive protein and white blood cell counts were highly correlated with component of Metabolic Syndrome. When correlation analysis was further carried on gender basis, it was found that body mass index, hip circumference and visceral fat level among males were more correlated with components of Metabolic Syndrome as compared to females, whereas, waist hip ratio among females was more correlated with Metabolic Syndrome. Moreover, serum uric acid, high sensitivity C reactive protein and white blood cell count were more correlated with Metabolic Syndrome among males as compared to female. However, chemerin was highly correlated among both male and female. Among anthropometric parameters body mass index, neck circumference and visceral fat level were most prominent risks for Metabolic Syndrome. And among inflammatory, adipokine and biochemical parameters except white blood cell count all parameter were good risks for Metabolic Syndrome. When logistic regression analysis was applied gender-wise it was observed that odds ratio of female body mass index (5.037, p<0.0001) was higher than body mass index (4.59, p<0.0001) of male participants. Whereas, neck circumference and visceral fat level odds ratio were higher for males as compared to females. Moreover, for serum uric acid and serum insulin odds ratio were higher among female and for chemerin and high sensitivity C reactive protein odds ratio among males were higher. Among anthropometric measurements on Receiver Operating Characteristic curve analysis body mass index (Area Under Curve, 98.90%) and visceral fat level (Area Under Curve, 99.70%) were shown as best predictors and among inflammatory, adipokine and biochemical markers chemerin (Area Under Curve, 99.98%), serum insulin (Area Under Curve, 99.20%) and high sensitivity C reactive protein (Area Under Curve, 98.50%) were most highlighted markers. Moreover, gender-wise it was identified that there was not much difference among sensitivity, specificity and cut off values of body mass index, hip circumference and visceral fat level, however, cut off value for body fat percentage for females were higher than males and cut off value of neck circumference for male was higher than female. Moreover, cut off values of serum uric acid, chemerin and serum insulin among female were higher than male. After correlation, regression and receiver operating characteristic curve analysis it was concluded that body mass index (cut-off 24.3 kg/m2 in males and 24.01 kg/m2 in females) and visceral fat level (9.5 in males and 8.5 in females) are the most prominent markers while chemerin ( cut-off 40.05 ng/dl in males and44.3 ng/dl in females) and high sensitivity C reactive protein (cut-off 4.45 mg/L in males and 3.5 mg/L in females) were the most prominent predictors for development of Metabolic Syndrome in both sexes. Further Research is needed with inclusion of more and newly introduced anthropometric, adipokine and inflammatory markers on large scale to cope with rising number of Metabolic Syndrome subjects to reduce the cost of health expenses.