Articles
352 open-access articles · page 17 of 18
Research ArticlePartial Characterization of α-amylase Produced from Aspergillus niger using Potato Peel as Substrate
Shahzad Mahmood, Memuna Ghafoor Shahid, Muhammad Irfan, Muhammad Nadeem, Quratulain Syed
In this study, solid state fermentation of potato peels were done by Aspergillus niger for the production of α–amylase. The crude enzyme produced was further characterized. The results showed that enzyme had an optimum pH of 6.0 and stable in…
4 May 2018DOI http:dx.doi.org/10.17582/pujz/2018.33.1.22.27
Research ArticleDiet Preferences and General Behavior of Peafowls in Captive Environment
Zahida Parveen, Safdar Sidra, Bushra Nisar Khan
Animals kept in captivity tend to behave differently than are kept free range mainly due to confinement. It is the responsibility of the animal keepers to provide enrichment including adequate space and food to animals for highest possible standards of welfare…
30 Mar 2018DOI http:dx.doi.org/10.17582/pujz/2018.33.1.16.21
Research ArticleDiversity and Distribution of Coccinellid Beetles in Irrigated and Rainfed Fields of Gujrat, Punjab, Pakistan
Mubashar Hussain, Muhammad Faheem Malik, Sehreen Siddique, Muhammad Umar, Tamkeen Zainab, Fatima Zafar
In order to assess the biodiversity and distribution of coccinellid beetles (Coleoptera: Coccinellidae), sampleswere collected from rainfed and irrigated fields of Gujrat, Punjab, Pakistan during 2015-2016. Adult specimens were collected fortnightly from crops…
26 Mar 2018DOI http:dx.doi.org/10.17582/pujz/2018.33.1.1.6
Research ArticleResponses of Bacteria from Urban and Desert Soil for Bioplastic Accumulation
Humaira Jabeen, Nazia Jamil
Abstract | Bacteria retain the ability to produce certain compounds to survive in unfavorable conditions; bioplastics is one of them. The aim of this study was to evaluate various environments for bioplastic producing bacteria. Bacterial strains were isolated…
26 Mar 2018DOI http:dx.doi.org/10.17582/pujz/2018.33.1.7.10
Research ArticleScreening of Pectinase Producing Gram Positive Bacteria: Isolation and Characterization
Fouzia Tabssum, Syed Shahid Ali
Microbial pectinases are enzymes of industrial importance; they are being used commercially in a variety of ways such as clarification of the juices in beverage industries, tea making, and wastewater treatment among others. The present investigation was undert…
26 Mar 2018DOI http:dx.doi.org/10.17582/pujz/2018.33.1.11.15
Research ArticleScreening of Pectinase Producing Gram Positive Bacteria: Isolation and Characterization
Fouzia Tabssum, Syed Shahid Ali
Microbial pectinases are enzymes of industrial importance; they are being used commercially in a variety of ways such as clarification of the juices in beverage industries, tea making, and wastewater treatment among others. The present investigation was undert…
26 Mar 2018DOI http:dx.doi.org/10.17582/pujz/2018.33.1.11.15- Research Article
Screening, optimization and characterization of xylanase by locally isolated bacteria
Farah Rauf Shakoori, Momina Shokat, Faiza Saleem, Tanzeela Riaz
Xylanase enzyme is of great importance commercially because of its high stability at elevated temperatures and in alkaline conditions. The present study was aimed to isolate and screen xylanase producing bacteria and to optimize cultural conditions for m…
24 Jan 2018 - Research Article
Diversity of indigenous fish species in Konoskhaihaor, Northeast Bangladesh
Mohammed Mahbub Iqbal, Mehedi Hasan Kanon, Mohammad Amzad Hossain, Abul Hossain, Shamima Nasren, Md. Jahidul Islam et al.
The present study was executed to assess the indigenous fish assemblage of Konoskhaihaor for 9 months from May 2014 to January 2015. The Konoskhaihaor area covers 104.50 acres of land containing 6 small to large beels. In the monsoon haor remains under water.…
24 Jan 2018 - Short Communication
Antifungal potential of silk recovered from Neoscona theisi (Araneae: Araneidae)
Hafiz Muhammad Tahir, Arooj Zaheer, Rabia Yaqoob
Study was designed to assess the antifungal potential of silk obtained from Neoscona theisi, an orb-weaver spider of Araneidae family. Evident inhibition of fungal growth was observed on bread treated with web silk of N. theisi as compared to untreated c…
24 Jan 2018 - Research Article
Comparative study of species composition, relative abundance and distribution of rodents between exclosure and control sites in the Web Valley of the Bale Mountains National Park, Ethiopia
Addishiwot Fekdu, Afework Bekele, Demeke Datiko
This investigation deals with comparative study of rodents between exclosure and control sites, Ethiopia. To collect the rodent fauna, six study grid sites were identified and marked. These were three from exclosure and three from control sites. Twenty-f…
24 Jan 2018 - Research Article
Effects of the selenium nanoparticles on the biomarkers of oxidative status in the Wistar rats spleen following the experimental cadmium toxicity
Soraya Khosravian Dehordi, Abdolnaser Mohebbi, Kahin Shahanipour
Exposures to heavy metals in environment produce several armful health effects. The generation of oxidative stress creates by the common mechanism their carcinogenicity and toxicity. The present study was planned to determine whether an oral administration of…
24 Jan 2018 - Research Article
Pathogenicity of Aspergillus parasiticus against Coptotermes heimi (Wasmann)
Ayesha Aihetasham, Faiza Qayyum, Muhammad Xaaceph
Termites are economically important insects. They cause damage to furniture, household goods, timber and forest vegetation. Present study was designed to determine the effect of fungus isolates at six different exposure times on Coptotermes heimi (Wasmann), wh…
24 Jan 2018 - Short Communication
Observation on the foraging behavior of a potter wasp, Delta esuriens (Fabricius) (Hymenoptera: Vespidae) on sesban (Sesbania sesban (L.) Merr)
Phong Huy Pham
The foraging behavior of Delta esuriens is observed on a female wasp. To paralyze the prey, a total of two stings in its abdomen segments are used by D. esuriens. The first sting aims at the sixth segment and the second at the seventh segment. The total time o…
24 Jan 2018 - Review
Spider silk: an excellent biomaterial for medical science and industry
Hafiz Muhammad Tahir, Khanum Zahra, Arooj Zaheer, Khizar Samiullah
Spider silk is categorized as fibrous protein. Spiders produce several types of silk. Spider silk is important because of its maximum mechanical strength, biocompatibility and biodegradability, pore filling ability and very low immunogenicity. In this review s…
19 Jan 2018 - Research Article
Effect of nickel on biofilm formation of Halophilic bacteria isolated from Achyranthus aspera from salt range Pakistan
Maryum Fakhar, Iqra Jabbar, Anjum Nasim Sabri
When exposed to heavy metals or toxic compounds, bacteria have multiple survival strategies involving several mechanisms of resistance and tolerance. Biofilm formation is one such resistance mechanism for bacterial survival. This paper provides the basis for u…
19 Jan 2018 - Research Article
Morphometric relationships of length-weight and length-length of farmed Ctenopharyngodon idella from Muzaffar Garh, Southern Punjab, Pakistan
Muhammad Khalid, Muhammad Naeem
Various morphometric characters i.e. total length (TL) standard length (SL), head length (HL), head width (HW), body girth (BG), body depth (BD), Dorsal fin length (DFL), pectoral fin length (PtFL), pelvic fin length (PvFL), anal fin length (AFL), eye diameter…
19 Jan 2018 - Research Article
Production of vanillin by a novel bacterium from waste residues of rice bran oil
Bushra Mazhar, Nusrat Jahan, Nazish Mazhar Ali, Saiqa andleeb, Shaukat Ali
Major aroma used in food, cosmetics, and pharmaceutical industries is chemically synthesized vanillin. The current research was carried out to explore local bacterial isolates for vanillin production using waste residues of rice bran oil. After the scree…
19 Jan 2018 - Research Article
Optimization of dilute sulphuric acid pretreatment of peanut shells through Box- Bhenken design for cellulase production by Bacillus subtilis K-18
Fatima Arshad, Muhammad Irfan, Hafiz Abdullah Shakir, Fouzia Tabbsum, Javed Iqbal Qazi
The present study includes the optimization of dilute sulphuric acid pretreatment of peanut shells as substrate for the production of cellulose enzyme using Box-Bhenken design of Response Surface Methodology. The pretreatment of substrate was conducted through…
19 Jan 2018 - Research Article
Effect of Post-coital intervals on DNA STR profiling of semen donor in the post-coital vaginal swabs
Manzoor Hussaina
Vaginal swabs are considered as most probative evidence material in sexual assault cases to get the DNA profile of the perpetrator. With the increase in post-coital interval, the possibility to get the autosomal DNA STR profile of the perpetrator diminishes ra…
19 Jan 2018 - Research Article
Population Status of Cheer Pheasant (Catreus wallichii) in Azad Jammu and Kashmir, Pakistan
Naeem Iftikhar, Qamar Zaman Qamar, Usman Ali, Muhammad Siddique Awan, Syeda Shaista Bibi, Riaz Aziz Minhas
Azad Jammu and Kashmir is one of the important areas that harbor the population of Cheer pheasant in Pakistan. Study was conducted from July 2010 to June 2011 to determine the potential of these sites as a possible focal point to start Cheer pheasant conservat…
19 Jan 2018