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Bharathiraja B, Ranjith Kumar R, PraveenKumar R, Chakravarthy M, Yogendran D, Jayamuthunagai J. Biodiesel production from different algal oil using immobilized pure lipase and tailor made rPichia pastoris with Cal A and Cal B genes. Bioresour Technol 2016; 213:69-78. [PMID: 26906444 DOI: 10.1016/j.biortech.2016.02.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 06/05/2023]
Abstract
In this investigation, oil extraction was performed in marine macroalgae Gracilaria edulis, Enteromorpha compressa and Ulva lactuca. The algal biomass was characterized by Scanning Electron Microscopy and Fourier Transform-Infra Red Spectroscopy. Six different pre-treatment methods were carried out to evaluate the best method for maximum oil extraction. Optimization of extraction parameters were performed and high oil yield was obtained at temperature 55°C, time 150min, particle size 0.10mm, solvent-to-solid ratio 6:1 and agitation rate 500rpm. After optimization, 9.5%, 12.18% and 10.50 (g/g) of oil extraction yield was achieved from the respective algal biomass. The rate constant for extraction was obtained as first order kinetics, by differential method. Stable intracellular Cal A and Cal B lipase producing recombinant Pichia pastoris was constructed and used as biocatalyst for biodiesel production. Comparative analysis of lipase activity and biodiesel yield was made with immobilized Candida antarctica lipase.
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Affiliation(s)
- B Bharathiraja
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, Tamilnadu, India.
| | - R Ranjith Kumar
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, Tamilnadu, India
| | - R PraveenKumar
- Department of Biotechnology, Anna Bio Research Foundation, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India
| | - M Chakravarthy
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, Tamilnadu, India
| | - D Yogendran
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai 600062, Tamilnadu, India
| | - J Jayamuthunagai
- Centre for Biotechnology, Anna University, Chennai 600025, Tamilnadu, India
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Maneze D, Everett B, Astorga C, Yogendran D, Salamonson Y. The Influence of Health Literacy and Depression on Diabetes Self-Management: A Cross-Sectional Study. J Diabetes Res 2016; 2016:3458969. [PMID: 27595113 PMCID: PMC4995333 DOI: 10.1155/2016/3458969] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/15/2016] [Accepted: 07/19/2016] [Indexed: 11/18/2022] Open
Abstract
Despite an increasing focus on health literacy in the clinical setting and in the literature, there is still ongoing debate about its influence on diabetes self-management. The aim of the study was to examine the relationships of sociodemographic, clinical, and psychological factors on health literacy and diabetes self-management. A cross-sectional survey was undertaken on 224 patients with type 2 diabetes at two diabetes centres in Sydney, Australia. Findings showed that people with low health literacy were more likely to (a) have lower educational attainment; (b) be migrants; and (c) have depressed mood. Unexpectedly, those who met HbA1c threshold of good glucose control were more likely to have low health literacy. Predictors of low diabetes self-management included (a) younger age group (AOR: 2.58, 95% CI: 1.24-4.64); (b) having postsecondary education (AOR: 2.30, 95% CI: 1.05-5.01); (c) low knowledge of diabetes management (AOR: 2.29, 95% CI: 1.25-4.20); and (d) having depressed mood (AOR: 2.30, 95% CI: 1.30-4.06). The finding that depressed mood predicted both low health literacy and low diabetes self-management stresses the importance of screening for depression. Increasing people's understanding of diabetes self-management and supporting those with depression are crucial to enhance participation in diabetes self-management.
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Affiliation(s)
- D. Maneze
- South Western Sydney Local Health District, 59a Cumberland Road, Ingleburn, NSW 2565, Australia
- School of Nursing and Midwifery, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
- Centre for Applied Nursing Research, Locked Bag 7103, Liverpool, NSW 1871, Australia
- Ingham Institute for Applied Medical Research, P.O. Box 3151, Liverpool, NSW 2170, Australia
- *D. Maneze:
| | - B. Everett
- South Western Sydney Local Health District, 59a Cumberland Road, Ingleburn, NSW 2565, Australia
- School of Nursing and Midwifery, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
- Centre for Applied Nursing Research, Locked Bag 7103, Liverpool, NSW 1871, Australia
- Ingham Institute for Applied Medical Research, P.O. Box 3151, Liverpool, NSW 2170, Australia
| | - C. Astorga
- South Western Sydney Local Health District, 59a Cumberland Road, Ingleburn, NSW 2565, Australia
| | - D. Yogendran
- South Western Sydney Local Health District, 59a Cumberland Road, Ingleburn, NSW 2565, Australia
| | - Y. Salamonson
- School of Nursing and Midwifery, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
- Centre for Applied Nursing Research, Locked Bag 7103, Liverpool, NSW 1871, Australia
- Ingham Institute for Applied Medical Research, P.O. Box 3151, Liverpool, NSW 2170, Australia
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Yogendran D, Hettiarachchi G, Bonakis D, Dargan P, Williams P, Kosky D. Urine drug screening in the evaluation of patients with excessive daytime sleepiness. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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