ISRN biotechnologyPub Date : 2013-02-13eCollection Date: 2013-01-01DOI: 10.5402/2013/718352
Aliyu Salihu, Muntari Bala, Shuaibu M Bala
{"title":"Application of Plackett-Burman Experimental Design for Lipase Production by Aspergillus niger Using Shea Butter Cake.","authors":"Aliyu Salihu, Muntari Bala, Shuaibu M Bala","doi":"10.5402/2013/718352","DOIUrl":"https://doi.org/10.5402/2013/718352","url":null,"abstract":"<p><p>Plackett-Burman design was used to efficiently select important medium components affecting the lipase production by Aspergillus niger using shea butter cake as the main substrate. Out of the eleven medium components screened, six comprising of sucrose, (NH4)2SO4, Na2HPO4, MgSO4, Tween-80, and olive oil were found to contribute positively to the overall lipase production with a maximum production of 3.35 U/g. Influence of tween-80 on lipase production was investigated, and 1.0% (v/w) of tween-80 resulted in maximum lipase production of 6.10 U/g. Thus, the statistical approach employed in this study allows for rapid identification of important medium parameters affecting the lipase production, and further statistical optimization of medium and process parameters can be explored using response surface methodology. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"718352"},"PeriodicalIF":0.0,"publicationDate":"2013-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393049/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33273628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2013-02-03eCollection Date: 2013-01-01DOI: 10.5402/2013/632173
Shilpa K Udamale, M P Moharil, T B Ugale, J M Mankar
{"title":"Differential Inhibition of Helicoverpa armigera (Hubner) Gut Proteinases by Proteinase Inhibitors of Okra and It's Wild Relatives.","authors":"Shilpa K Udamale, M P Moharil, T B Ugale, J M Mankar","doi":"10.5402/2013/632173","DOIUrl":"https://doi.org/10.5402/2013/632173","url":null,"abstract":"<p><p>The seeds of ten genotypes and twenty-nine wild relatives of okra were analysed for the presence of trypsin, chymotrypsin, and Helicoverpa gut proteinases (HGPs) inhibitors (HGPIs), with the aim to identify potent inhibitors of H. armigera gut proteinases. Proteinase inhibitors (PIs) obtained from wild relatives of okra exhibited stronger inhibition of HGPs than the genotypes of okra. In in vitro inhibitory assay against HGPs, A. tuberculatus 90396 and 90515 showed high tryptic inhibitory (71.8% and 69.2%), chymotryptic inhibitory (68.5% and 66.2%), and Helicoverpa gut proteinase activity (70.2% and 68.2%). In electrophoretic profile showed the same variation in the number of trypsin inhibitors (TIs), chymotrypsin Inhibitors (CIs), and HGPIs isoforms with different intensities, whereas genotypes of okra mostly showed monomorphic profile. Maximum eight HGPIs isoforms were found in A. tuberculatus (90396 and 90515). In bioassay studies, significant reduction in weight of H. armigera larvae was found, when larvae fed on PIs obtained from A. tuberculatus (90396 and 90515). Thus, the result of the present investigation indicates that further exploration of PIs obtained from A. tuberculatus (90396 and 90515) will be helpful for developing PIs-based insect resistance management strategies. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"632173"},"PeriodicalIF":0.0,"publicationDate":"2013-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33273626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2013-01-28eCollection Date: 2013-01-01DOI: 10.5402/2013/735053
Neha Kapila, Amit Kishore, Monika Sodhi, Ankita Sharma, Pawan Kumar, A K Mohanty, Tanushri Jerath, M Mukesh
{"title":"Identification of Appropriate Reference Genes for qRT-PCR Analysis of Heat-Stressed Mammary Epithelial Cells in Riverine Buffaloes (Bubalus bubalis).","authors":"Neha Kapila, Amit Kishore, Monika Sodhi, Ankita Sharma, Pawan Kumar, A K Mohanty, Tanushri Jerath, M Mukesh","doi":"10.5402/2013/735053","DOIUrl":"https://doi.org/10.5402/2013/735053","url":null,"abstract":"<p><p>Gene expression studies require appropriate normalization methods for proper evaluation of reference genes. To date, not many studies have been reported on the identification of suitable reference genes in buffaloes. The present study was undertaken to determine the panel of suitable reference genes in heat-stressed buffalo mammary epithelial cells (MECs). Briefly, MEC culture from buffalo mammary gland was exposed to 42 °C for one hour and subsequently allowed to recover at 37 °C for different time intervals (from 30 m to 48 h). Three different algorithms, geNorm, NormFinder, and BestKeeper softwares, were used to evaluate the stability of 16 potential reference genes from different functional classes. Our data identified RPL4, EEF1A1, and RPS23 genes to be the most appropriate reference genes that could be utilized for normalization of qPCR data in heat-stressed buffalo MECs. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"735053"},"PeriodicalIF":0.0,"publicationDate":"2013-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393032/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33273629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2013-01-21eCollection Date: 2013-01-01DOI: 10.5402/2013/916481
F T Ademiluyi, H D Mepba
{"title":"Yield and properties of ethanol biofuel produced from different whole cassava flours.","authors":"F T Ademiluyi, H D Mepba","doi":"10.5402/2013/916481","DOIUrl":"https://doi.org/10.5402/2013/916481","url":null,"abstract":"<p><p>The yield and properties of ethanol biofuel produced from five different whole cassava flours were investigated. Ethanol was produced from five different whole cassava flours. The effect of quantity of yeast on ethanol yield, effect of whole cassava flour to acid and mineralized media ratio on the yield of ethanol produced, and the physical properties of ethanol produced from different cassava were investigated. Physical properties such as distillation range, density, viscosity, and flash point of ethanol produced differ slightly for different cultivars, while the yield of ethanol and electrical conductivity of ethanol from the different cassava cultivars varies significantly. The variation in mineral composition of the different whole cassava flours could also lead to variation in the electrical conductivity of ethanol produced from the different cassava cultivars. The differences in ethanol yield are attributed to differences in starch content, protein content, and dry matter of cassava cultivars. High yield of ethanol from whole cassava flour is best produced from cultivars with high starch content, low protein content, and low fiber. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"916481"},"PeriodicalIF":0.0,"publicationDate":"2013-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2013/916481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33146729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2013-01-14eCollection Date: 2013-01-01DOI: 10.5402/2013/926025
Amit Kishore, Manishi Mukesh, Ranbir C Sobti, Bishnu P Mishra, Monika Sodhi
{"title":"Variations in the Regulatory Region of Alpha S1-Casein Milk Protein Gene among Tropically Adapted Indian Native (Bos Indicus) Cattle.","authors":"Amit Kishore, Manishi Mukesh, Ranbir C Sobti, Bishnu P Mishra, Monika Sodhi","doi":"10.5402/2013/926025","DOIUrl":"https://doi.org/10.5402/2013/926025","url":null,"abstract":"<p><p>Regulatory region of milk protein alpha S1-casein (αS1-CN) gene was sequenced, characterized, and analyzed to detect variations among 13 Indian cattle (Bos indicus) breeds. Comparative analysis of 1,587 bp region comprising promoter (1,418 bp), exon-I (53 bp), and partial intron-I (116 bp) revealed 35 nucleotide substitutions (32 within promoter region, 1 in exon-I, and 2 in partial intron-I region) and 4 Indels. Within promoter, 15 variations at positions -1399 (A > G), -1288 (G > A), -1259 (T > C), -1158 (T > C), -1016 (A > T), -941 (T > G), -778 (C > T), -610 (G > A), -536 (A > G), -521 (A > G), -330 (A > C), -214 (A > G), -205 (A > T), -206 (C > A), and -175 (A > G) were located within the potential transcription factor binding sites (TFBSs), namely, NF-κE1/c-Myc, GATA-1, GATA-1/NF-E, Oct-1/POU3F2, MEF-2/YY1, GATA-1, AP-1, POU1F1a/GR, TMF, GAL4, YY1/Oct-1, HNF-1, GRalpha/AR, GRalpha/AR, and AP-1, respectively. Seventy-four percent (26/35) of the observed SNPs were novel to Indian cattle and 11 of these novel SNPs were located within one or more TFBSs. Collectively, these might influence the binding affinity towards their respective nuclear TFs thus modulating the level of transcripts in milk and affecting overall protein composition. The study provides information on several distinct variations across indicine and taurine αS1-CN regulatory domains. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"926025"},"PeriodicalIF":0.0,"publicationDate":"2013-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393073/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33146730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2012-12-30eCollection Date: 2013-01-01DOI: 10.5402/2013/186534
Danny E Akin
{"title":"Linen most useful: perspectives on structure, chemistry, and enzymes for retting flax.","authors":"Danny E Akin","doi":"10.5402/2013/186534","DOIUrl":"https://doi.org/10.5402/2013/186534","url":null,"abstract":"<p><p>The components of flax (Linum usitatissimum) stems are described and illustrated, with reference to the anatomy and chemical makeup and to applications in processing and products. Bast fiber, which is a major economic product of flax along with linseed and linseed oil, is described with particular reference to its application in textiles, composites, and specialty papers. A short history of retting methods, which is the separation of bast fiber from nonfiber components, is presented with emphasis on water retting, field retting (dew retting), and experimental methods. Past research on enzyme retting, particularly by the use of pectinases as a potential replacement for the current commercial practice of field retting, is reviewed. The importance and mechanism of Ca(2+) chelators with pectinases in retting are described. Protocols are provided for retting of both fiber-type and linseed-type flax stems with different types of pectinases. Current and future applications are listed for use of a wide array of enzymes to improve processed fibers and blended yarns. Finally, potential lipid and aromatic coproducts derived from the dust and shive waste streams of fiber processing are indicated. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"186534"},"PeriodicalIF":0.0,"publicationDate":"2012-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4403609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33300255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Challenges in enzymatic route of mannitol production.","authors":"Sheelendra Mangal Bhatt, Anand Mohan, Suresh Kumar Srivastava","doi":"10.5402/2013/914187","DOIUrl":"https://doi.org/10.5402/2013/914187","url":null,"abstract":"<p><p>Mannitol is an important biochemical often used as medicine and in food sector, yet its biotechnological is not preffered in Industry for large scale production, which may be due to the multistep mechanism involved in hydrogenation and reduction. This paper is a comparative preview covering present chemical and biotechnological approaches existing today for mannitol production at industrial scale. Biotechnological routes are suitable for adaptation at industrial level for mannitol production, and whatever concerns are there had been discussed in detail, namely, raw materials, broad range of enzymes with high activity at elevated temperature suitable for use in reactor, cofactor limitation, reduced by-product formation, end product inhibition, and reduced utilization of mannitol for enhancing the yield with maximum volumetric productivity. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"914187"},"PeriodicalIF":0.0,"publicationDate":"2012-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2013/914187","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33300086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2012-12-06eCollection Date: 2013-01-01DOI: 10.5402/2013/601303
Janki N Thakker, Samiksha Patel, Pinakin C Dhandhukia
{"title":"Induction of Defense-Related Enzymes in Banana Plants: Effect of Live and Dead Pathogenic Strain of Fusarium oxysporum f. sp. cubense.","authors":"Janki N Thakker, Samiksha Patel, Pinakin C Dhandhukia","doi":"10.5402/2013/601303","DOIUrl":"https://doi.org/10.5402/2013/601303","url":null,"abstract":"<p><p>The aim of the present study was to scrutinize the response of banana (Grand Naine variety) plants when interacting with dead or live pathogen, Fusarium oxysporum f.sp. cubense, a causative agent of Panama disease. Response of plants was evaluated in terms of induction of defense-related marker enzyme activity, namely, peroxidase (POX), polyphenol oxidase (PPO), β-1,3 glucanase, chitinase, and phenolics. Plant's interaction with live pathogen resulted in early induction of defense to restrain penetration as well as antimicrobial productions. However, pathogen overcame the defense of plant and caused disease. Interaction with dead pathogen resulted in escalating defense response in plants. Later on plants inoculated with dead pathogen showed resistance to even forced inoculation of live pathogen. Results obtained in the present study suggest that dead pathogen was able to mount defense response in plants and provide resistance to Panama disease upon subsequent exposure. Therefore, preparation from dead pathogen could be a potential candidate as a biocontrol agent or plant vaccine to combat Panama disease. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"601303"},"PeriodicalIF":0.0,"publicationDate":"2012-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2013/601303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33300169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2012-11-27eCollection Date: 2013-01-01DOI: 10.5402/2013/236062
Neelam Verma, Ashish Kumar Singh
{"title":"Development of biological oxygen demand biosensor for monitoring the fermentation industry effluent.","authors":"Neelam Verma, Ashish Kumar Singh","doi":"10.5402/2013/236062","DOIUrl":"https://doi.org/10.5402/2013/236062","url":null,"abstract":"<p><p>A biosensor was developed for the determination of BOD value of fermentation industry effluent. The developed biosensor was fabricated by immobilizing the microbial consortium on cellulose acetate (CA) membrane in close proximity to a DO probe electrode. The microbial consortium was harvested from the fermentation industry effluent. The BOD biosensor was calibrated by using a solution containing the equivalent amount of glucose/glutamic acid (GGA) as a standard sample solution. The response time was optimized by immobilizing different concentrations of cell biomass on CA membrane. Once the response time was optimized, it was used for determination of BOD of fermentation industry effluent. For analysis of fermentation industry effluent, the response time was observed 7 minutes with detection limit 1 mg/L. Good linear range with GGA standard solution was observed, R (2) 0.99 with relative standard deviation (RSD) <%. The observed BOD value by biosensor showed a good comparison with the conventional method for the determination of BOD. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"236062"},"PeriodicalIF":0.0,"publicationDate":"2012-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2013/236062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33300256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN biotechnologyPub Date : 2012-11-11eCollection Date: 2013-01-01DOI: 10.5402/2013/515091
Janki N Thakker, Pranay Dalwadi, Pinakin C Dhandhukia
{"title":"Biosynthesis of Gold Nanoparticles Using Fusarium oxysporum f. sp. cubense JT1, a Plant Pathogenic Fungus.","authors":"Janki N Thakker, Pranay Dalwadi, Pinakin C Dhandhukia","doi":"10.5402/2013/515091","DOIUrl":"https://doi.org/10.5402/2013/515091","url":null,"abstract":"<p><p>The development of reliable processes for the synthesis of gold nanoparticles is an important aspect of current nanotechnology research. Recently, reports are published on the extracellular as well as intracellular biosynthesis of gold nanoparticles using microorganisms. However, these methods of synthesis are rather slow. In present study, rapid and extracellular synthesis of gold nanoparticles using a plant pathogenic fungus F. oxysporum f. sp. cubense JT1 (FocJT1) is reported. Incubation of FocJT1 mycelium with auric chloride solution produces gold nanoparticles in 60 min. Gold nanoparticles were characterized by UV-Vis spectroscopy, FTIR, and particle size analysis. The particles synthesized were of 22 nm sized, capped by proteins, and posed antimicrobial activity against Pseudomonas sp. </p>","PeriodicalId":90878,"journal":{"name":"ISRN biotechnology","volume":"2013 ","pages":"515091"},"PeriodicalIF":0.0,"publicationDate":"2012-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2013/515091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33300259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}