Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Jacqueline Onumah"'
Autor:
Peter Osei Boamah, Jacqueline Onumah, Benjamin Apam, Tayari Salifu, Asaa Akunai Abunkudugu, Sherif Anaane Alabil
Publikováno v:
Environmental Challenges, Vol 14, Iss , Pp 100828- (2024)
Ghana's agriculture is primarily rain-fed, making it vulnerable to the impact of climate variability and climate change. This study examined the trends and impact of climatic variability and evapotranspiration on the crop evapotranspiration of select
Externí odkaz:
https://doaj.org/article/8d2d4294b7df451195534f05fc95ecfa
Publikováno v:
Carbohydrate Polymer Technologies and Applications, Vol 6, Iss , Pp 100329- (2023)
Chitosan (CHT) is a natural substance widely used in veterinary medicine. However, the application of chitosan in animal production has severe shortcomings. This is because it is insoluble in pH ≥ 7 due to its very stable crystalline nature. This h
Externí odkaz:
https://doaj.org/article/a12e0e9026244aa1a9d203ec742f2d11
Autor:
Peter Osei Boamah, Newlove A Afoakwah, Jacqueline Onumah, Emmanuel Duah Osei, Gustav K Mahunu
Publikováno v:
Carbohydrate Polymer Technologies and Applications, Vol 5, Iss , Pp 100288- (2023)
Gum tragacanth (GT) is an anionic polymer with a high molecular weight. GT has drawn much attention due to its being renewable, accessible, reasonably affordable, non-allergenic, non-carcinogenic, non-toxic, and eco-friendly nature. The aforementione
Externí odkaz:
https://doaj.org/article/51379cfa20974667828091763de7f65a
Publikováno v:
International Journal of Biological Macromolecules. 235:123858
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f46c6b441e9a7ecd97d93fd0ecfc571c
https://doi.org/10.1016/j.ijbiomac.2023.123858
https://doi.org/10.1016/j.ijbiomac.2023.123858
Autor:
Yan Huang, Qi Zhang, Peter Osei Boamah, Paul Osei Boamah, Mingqing Hua, L. K. Sam-Amoah, Jacqueline Onumah, Yaao Qian
Publikováno v:
Ecotoxicology and Environmental Safety. 129:154-163
In this study, sorption of copper onto low molecular weight chitosan derivative was studied. Experimental parameters such as pH of the solution (A), temperature (B), dose of the sorbent (C), and concentration of solution (D) were considered. The stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da494e85d931ebeb830348d96c819bfa
https://doi.org/10.1016/j.ecoenv.2016.01.014
https://doi.org/10.1016/j.ecoenv.2016.01.014
Autor:
Qi Zhang, Jingbo Wu, Jacqueline Onumah, Mingqing Hua, Yan Huang, L. K. Sam-Amoah, Peter Osei Boamah, Paul Osei Boamah
Publikováno v:
Ecotoxicology and environmental safety. 116
Chitosan is of importance for the elimination of heavy metals due to their outstanding characteristics such as the presence of NH2 and -OH functional groups, non-toxicity, low cost and, large available quantities. Modifying a chitosan structure with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e3903bb0f04b4459f7b4a58bd78e7e9
https://pubmed.ncbi.nlm.nih.gov/25791666
https://pubmed.ncbi.nlm.nih.gov/25791666
Autor:
Peter Osei Boamah, Yuanyuan Liu, Jacqueline Onumah, Wei Wang, Yongxiu Song, Yan Huang, Mingqing Hua, Qi Zhang
Publikováno v:
Carbohydrate polymers. 122
A 2 3 factorial design was used to examine the sorption of Cd 2+ onto cross-linked low molecular weight chitosan pyruvic acid derivative. Three factors and two levels of solution pH (A) (6.0 or 10.0), temperature (B) (45 or 70 °C) and Cd(II) concent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cb40c7758bd1063847a7398497627ca
https://pubmed.ncbi.nlm.nih.gov/25817667
https://pubmed.ncbi.nlm.nih.gov/25817667