Pakistan Journal of Chemistry最新文献

{"title":"Permanganate Aerobic oxidation of Drimarene Blue-HFRL under diverse pH and impact on Chemical oxygen demand of the dye wastewater","authors":"M. Farhan, T. Ahmed, S. Manzoor, M. Ejaz","doi":"10.15228/2024.v14.i1-2.p01","DOIUrl":"https://doi.org/10.15228/2024.v14.i1-2.p01","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141099872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel Synthesis of Bionanomaterials by Conversion of Potato Peels and Adsorption Studies of Ni on Prepared Surface","authors":"A. Khan, A. Saleem","doi":"10.15228/2024.v14.i1-2.p02","DOIUrl":"https://doi.org/10.15228/2024.v14.i1-2.p02","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"86 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141101530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Study for the Influence of Methyl Substituent's Position on Quinoline for Inhibition of Aluminium Corrosion in Hydrochloric Acid","authors":"A. M. Usman, J. Ambreen, A. A. Muhammad, N. U. Shehu, M. U. Sadiq","doi":"10.15228/2024.v14.i1-2.p03","DOIUrl":"https://doi.org/10.15228/2024.v14.i1-2.p03","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"2 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141099821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Food Waste As A Useful Resource Of Bioactive Compounds And Their Extraction","authors":"A. Masood, B. Hassan, F. Azhar, G. R. Khan","doi":"10.15228/2022.v13.i03-4.p04","DOIUrl":"https://doi.org/10.15228/2022.v13.i03-4.p04","url":null,"abstract":"Extracting bioactive compounds from food waste has become a promising approach to addressing the escalating food waste crisis and the growing demand for functional ingredients with potential health benefits. This review provides a comprehensive overview of recent developments in the extraction of bioactive substances from various sources of food waste. It discusses traditional and advanced extraction methods, such as solvent extraction, pressing, supercritical fluid extraction, ultrasonic extraction, and enzyme-assisted extraction. In addition, bioactive compounds existing in food waste, including polyphenols, flavonoids, proteins, lipids, and essential oils, are being explored for their potential health benefits. Overall, this essay aims to shed light on the transformative potential of extracting bioactive compounds from food waste and highlights the importance of harnessing this intact resource to create a sustainable value-added food industry.","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89824160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of Waterproof Cum Heat Resistant, Montmorillonite Clay Modified High- Pressure Plywood Composite from Renewable-Nonedible Agricultural Wastes – An Industrial Case Study of ‘Flask to Reactor’ Approach","authors":"M. Akram, M. Asad, S. M. Zehra, A. Farooq, A. Mahmood, M. Arfan, S. T. Hussain Shah","doi":"10.15228/2022.v13.i03-4.p03","DOIUrl":"https://doi.org/10.15228/2022.v13.i03-4.p03","url":null,"abstract":"A sustainable development model demands an economical transition of product synthesis from ‘Flask to Reactor,’ which demands synchronization between universities, industries and funding agencies. In our lab, we have successfully developed a prototype method for synthesizing adhesive phenol-furfural resin from extracts of Saccharum munja while biomass residues of this feedstock extraction were employed as filling materials for manufacturing plywood samples. This designed method has the advantage of no leftover waste material. Moreover, waterproofing, heat resistance and mechanical strength were improved by impregnating functionalized montmorillonite clay into these prepared plywood samples. Subsequently, water and fire-resistant wood composite (MDF) was developed from agricultural residue on a pilot plant scale ( Saccharum munja ). Green precursor furfural (for resin/glue synthesis) was extracted from agricultural residue (Saccharum munja and peanut plant) on a pilot plant scale. Organic functionalization clay was also synthesized and incorporated during resin (Phenol-Furfural) preparation. Plant materials left after furfural extraction were further used for wood composite (MDF) preparation by hot pressing of plant residue and resin. Characterization and evaluation of prototype wood composite products were also performed for fire and waterproof analysis. Results have shown that prepared samples have good fire and water-resistant activities. This product will be a good candidate for the wood composite market and is green. Furfural, used for resin synthesis, is a potential replacement for carcinogenic formaldehyde, which is largely used in wood composite and plywood industries. Pakistan is an agricultural country and is enriched with mineral reservoirs. Fortunately, raw materials required for this project, i.e. renewable biomass including agricultural residue and nonedible plants, and minerals, i.e. montmorillonite clay, are available in ample quantities. Thus, this project has good potential to develop cost-effective and improved quality plywood products that are marketable and can generate positive cash flow. TTSF platform was employed to support promising partnerships between academia (HEC & NUST) and industry (KDC Boards (Pvt) Ltd, Woodworld (Pvt) Ltd & TASCO Mines (LLP)) to facilitate the transfer of university-developed technological research to industry and the commercial sector.","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90559389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physicochemical and Antioxidant Properties of Honey: Effect of Heat and Storage","authors":"S. J. Laulloo, D. H. Etwaroo, M. N. I. H. Mahomed, V. Jowaheer, M. G. Bhowon","doi":"10.15228/2023.v13.i03-4.p02","DOIUrl":"https://doi.org/10.15228/2023.v13.i03-4.p02","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physicochemical and Antioxidant Properties of Honey: Effect of Heat and Storage","authors":"S. J. Laulloo, D. H. Etwaroo, M. N. I. H. Mahomed, V. Jowaheer, M. G. Bhowon","doi":"10.15228/2022.v13.i03-4.p02","DOIUrl":"https://doi.org/10.15228/2022.v13.i03-4.p02","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136310904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical Modulation of RNA Epigenetic Modifications","authors":"L. Cheng","doi":"10.15228/2023.v13.i03-4.p01","DOIUrl":"https://doi.org/10.15228/2023.v13.i03-4.p01","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical Modulation of RNA Epigenetic Modifications","authors":"L. Cheng","doi":"10.15228/2022.v13.i03-4.p01","DOIUrl":"https://doi.org/10.15228/2022.v13.i03-4.p01","url":null,"abstract":"Given the increasing evidence demonstrating the notable functions of RNA modifications, the precise regulation of a particular epigenetic mark is high desirable. Current genetic techniques like over-expression or knockout of corresponding genes/proteins, as well as the development of molecular inhibitors/antagonists of these enzymes facilitated a prompt epigenetic associated phenotype observation. However, these approaches heavily relied on the characterization of RNA-modifying enzymes. In vitro or in vivo alteration of RNA epigenetics, especially for those modifications whose pathways have not been identified, through direct chemical interventions with small organic molecules would fulfill this gap and is thus highly desirable. Considering the fact that those enzymatic modifications and de-modifications are chemical reactions occurred in the homeostasis constraints of a living system, we believe it would be possible for developing the corresponding their biomimetic counterparts. In this Review , we will present our recent advances regarding the direct chemical interventions towards several biologically important RNA modifications and their applications in live cells or growing plants. We have demonstrated that the demethylation process of N 6 -methyladenosine m 6 A in live cells could be accomplished through Flavin mononucleotide prompted biocompatible photo-oxidation. This is the first example of small organic molecules modulating in vitro RNA epigenetic modifications. We also presented a straightforward transformation for the generation of 5-formylcytidine f 5 C from 5-methylcytidine m 5 C using anthraquinone-2-sulfonate without oxidizing other biomacromolecules or redundancy production of 5-hydroxymethylcytidine hm 5 C. Most recently, we reported that oxoammonium cations might be applied as artificial deprenylases for the highly sensitive and selective demodification of N 6 -prenyladenosine i 6 A in oligonucleotides, cells and even live plants. One of the most striking features of these “ artificial enzymes ” is their low cytotoxic activity on cells and extraordinary capability in regulating designated modifications without over-expression or inhibiting corresponding enzymes or disturbing other epigenetics, nucleic acids, or proteins. The objective of this Review is to present the research findings regarding the design, synthesis and evaluation of highly efficient chemical reagents and biocompatible transformations toward selected RNA epigenetics that have enabled chemists’ ability to not just controlling in vitro/in vivo RNA modifications, but also introducing artificial variants onto natural RNAs, without disturbing any related enzymes. Such double direction regulating may considerably help in the function interpretation/installation/modulation of versatile modifications pertaining to RNAs. The ability of those chemical motifs will undoubtedly illuminate undisclosed functions and regulatory mechanisms affiliated to the vast majority of disc","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84238410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production Sources and Potential Applications of Alkaline Water","authors":"S. Masood, A.U Nisa, P. Shahzad, H. Nisar, F. Sajjad, A. Hussain, H.U. Rehman, F. Khan, R. Kalsoom","doi":"10.15228/2023.v13.i01-2.p06","DOIUrl":"https://doi.org/10.15228/2023.v13.i01-2.p06","url":null,"abstract":"","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135832489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}