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Retention of <i>β</i>-Carotene in Cream-Fleshed Sweetpotato-Based Complementary Food Stored in Different Containers under Simulated Tropical Temperature and Humidity

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Food and Nutrition Sciences 2013年第9期4卷 23-28页

作者： Francis kweku Amagloh Louise Brough Janet L. Weber Anthony N. Mutukumira Allan Hardacre Jane Coad Department of Biotechnology (Food Processing Technology Section) Faculty of Agriculture University for Development Studies Nyankpala Ghana Institute of Food Nutrition and Human Health College of Health Massey University Palmerston North New Zealand. Institute of Food Nutrition and Human Health College of Health Massey University Palmerston North New Zealand.

The stability of β-carotene in cream-fleshed sweetpotato-based complementary food stored in three different containers under simulated tropical temperature of 32°C and 85% relative humidity in an environmental chamber for 24 weeks was investigated. The formulation stored in a metallised polyester film in a refrigerator (approximately 3.0°C and 95% relative humidity) retained about 81% of β-carotene at 24 weeks, with no significant change in the moisture content. The formulation stored in either a metallised polyester film or a translucent polypropylene container placed in the environmental chamber retained approximately half of the β-carotene at 24 weeks, with a slight increase in moisture content. However, the formulation held in a transparent low-density polyethylene bag had the lowest β-carotene retention (37%) and the highest moisture content at week 24. Within the limits of this study, it has been demonstrated that β-carotene in cream-fleshed sweetpotato-based complementary food was well retained when moisture uptake was minimised.

关键词： β-Carotene Complementary Food Storage Sweetpotato

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First molecular identification of multiple tick‑borne pathogens in livestock within Kassena‑Nankana,Ghana

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Animal Diseases 2023年第1期3卷 21-34页

作者： Seth Offei Addo Ronald Essah Bentil Kevin Nii Yartey Jane Ansah‑Owusu Eric Behene Selassie Bruku Victor Asoala Suzanne Mate John Asiedu Larbi Philip kweku Baidoo Michael David Wilson Joseph W.Diclaro II Samuel K.Dadzie Parasitology Department Noguchi Memorial Institute for Medical ResearchCollege of Health SciencesUniversity of GhanaAccraGhana Department of Theoretical and Applied Biology College of ScienceKNUSTKumasiGhana Department of Epidemiology Noguchi Memorial Institute for Medical ResearchCollege of Health SciencesUniversity of GhanaAccraGhana Navrongo Health Research Centre Upper East RegionNavrongoGhana U.S.Army Emerging Infectious Diseases Branch Walter Reed Army Institute of ResearchSilver SpringMDUSA Navy and Marine Corps Public Health Center Center for Disease Control and Prevention DetachmentAtlantaGAUSA

The risk of pathogen transmission continues to increase significantly in the presence of tick vectors due to the trade of livestock across *** Ghana,there is a lack of data on the incidence of tick-borne pathogens that are of zoonotic and veterinary *** study,therefore,aimed to determine the prevalence of such pathogens in livestock using molecular approaches.A total of 276 dry blood spots were collected from cattle(100),sheep(95)and goats(81)in the Kassena-Nankana *** samples were analyzed using Polymerase Chain Reaction(qPCR)and conventional assays and Sanger sequencing that targeted pathogens including Rickettsia,Coxiella,Babesia,Theileria,Ehrlichia and *** overall prevalence of 36.96%was recorded from the livestock DBS,with mixed infections seen in 7.97%***,the prevalence of infections in livestock was recorded to be 19.21%in sheep,14.13%in cattle,and 3.62%in *** pathogens identified were Rickettsia spp.(3.26%),Babesia ***(8.70%),Theileria orientalis(2.17%),Theileria parva(0.36%),Anaplasma capra(18.48%),Anaplasma phagocytophilum(1.81%),Anaplasma marginale(3.26%)and Anaplasma ovis(7.25%).This study reports the first molecular identification of the above-mentioned pathogens in livestock in Ghana and highlights the use of dry blood spots in resource-limited *** addition,this research provides an update on tick-borne pathogens in Ghana,suggesting risks to livestock production and human *** studies will be essential to establish the distribution and epidemiology of these pathogens in Ghana.

关键词： Livestock Rickettsia Babesia Theileria Ehrlichia Anaplasma

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Potential factors influencing lymphatic filariasis transmission in"hotspot"and"control"areas in Ghana:the importance of vectors

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Infectious Diseases of Poverty 2019年第1期8卷 45-55页

作者： Sellase Pi-Bansa Joseph Harold Nyarko Osei Kwadwo Kyeremeh Frempong Elizabeth Elhassan Osei kweku Akuoko David Agyemang Collins Ahorlu Maxwell Alexander Appawu Benjamin Guibehi Koudou Michael David Wilson Dziedzom Komi de Souza Samuel kweku Dadzie Jurg Utzinger Daniel Adjei Boakye Swiss Tropical and Public Health Institute BaselSwitzerland University of Basel BaselSwitzerland Noguchi Memorial Institute for Medical Research College of Health SciencesUniversity of GhanaLegonGhana Department of Animal Biology and Conservation Science University of GhanaLegonGhana SightSavers International Ghana OfficeAccraGhana African Regional Postgraduate Programme in Insect Science University of GhanaLegonGhana Vector Biology Department Liverpool School of Tropical MedicineLiverpoolUK Centre Suisse de Recherches Scientifiques en Cote d'Ivoire AbidjanCote d'Ivoire

Background:Mass drug administration(MDA)programmes for the control of lymphatic filariasis in Ghana,have been ongoing in some endemic districts for 16 *** current study aimed to assess factors that govern the success of MDA programmes for breaking transmission of lymphatic filariasis in ***:The study was undertaken in two"hotspot"districts(Ahanta West and Kassena Nankana West)and two control districts(Mpohor and Bongo)in *** were collected and identified using morphological and molecular tools.A proportion of the cibarial armatures of each species was *** were performed onAnopheles gambiae for filarial worm detection.A questionnaire was administered to obtain information on MDA compliance and vector control *** were compared between districts to determine factors that might explain persistent transmission of lymphatic ***:High numbers of mosquitoes were sampled in Ahanta West district compared to Mpohor district(F=16.09,P=0.002).There was no significant difference between the numbers of mosquitoes collected in Kassena Nankana West and Bongo districts(F=2.16,P=0.185).Mansonia species were predominant in Ahanta West *** mosquitoes were prevalent in all *** with infected and infective filarial worms was found only in Ahanta West *** differences were found in cibarial teeth numbers and shape for mosquito species in the surveyed *** MDA coverage was high in all *** average use of bednet and indoor residual spraying was 82.4 and 66.2%,*** was high compliance in the five preceding MDA rounds in Ahanta West and Kassena Nankana West districts,both considered hotspots of lymphatic filariasis ***:The study on persistent transmission of lymphatic filariasis in the two areas in Ghana present information that shows the importance of local understanding of factors affecting control and elimination of lymphatic

关键词： Ghana Hotspots Lymphatic filariasis Mass drug administration Microfilariae Systematic non-compliance Vector control

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Ecology, Distribution and Risk of Transmission of Viral Haemorrhagic Fevers by Aedes Mosquitoes around the Port Areas of Tema in Southern Ghana

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Advances in Entomology 2022年第2期10卷 135-148页

作者： Kenechukwu C. Ojukwu Joseph Chabi Kwadwo Frempong Delphina A. Adabie-Gomez Joseph Harold Nyarko Osei Andy Asafu-Adjaye Sellase Pi-Bansa Michelle Adimazoya Kojo Y. Sakyi Kwaku O. Akuoko Ruth Brenyah Maxwell A. Appawu Samuel kweku Dadzie African Regional Postgraduate Programme in Insect Science University of Ghana Accra Ghana Parasitology Department Noguchi Memorial Institute of Medical Research University of Ghana Accra Ghana School of Veterinary Medicine University of Ghana Accra Ghana Department of Clinical Microbiology School of Medical Science Kwame Nkrumah University of Science and Technology Kumasi Ghana

Aedes-borne diseases remain a public health challenge for many countries globally. The extent of spread of invasive species of Aedes mosquitoes and risk of transmission of the diseases especially around the point of entry of goods such as ports is not well known in Ghana. This study investigated the ecology, distribution and risk of transmission of viral haemorrhagic fevers by Aedes mosquitoes around the port areas of Tema, Southern Ghana. The mosquitoes from this study were collected using human landing catches, ovitraps and larval collections for a period of six months. A total of 1092 containers were inspected in both seasons and of these, 237 (21.7%) were positive for mosquito larvae or pupae in rainy season while 181 (16.6%) were positive in dry season. A total of 6498 mosquitoes were collected and identified morphologically using taxonomic keys. 6038 (92.9%) were Aedes aegypti, 337 (5.2%) were Culex spp. and 123 (1.9%) were Anopheles gambiae. The Ae. aegypti larvae were found breeding in a series of water-holding containers which included disposed plastic containers, earthenware pots, car tyres, plastic barrels, plastic basins, buckets, metal drums, jerrycans and poly tank. A high proportion of Aedes aegypti eggs were found in the ovitraps during the rainy season than in the dry season in the study sites. Ae. aegypti was the most common mosquitoes biting mostly outdoors (65.6%) with more bites occurring in the rainy season (63.6%) in the two residential sites (Tema Community One and Tema New Town). The risk of transmission of viral haemorrhagic fever in the study sites was assessed using House Index, Container Index, Breteau Index and was found to be higher in Tema New town area with seasonal variations within the sites. The man-vector contact rates for the two residential sites were also found to be higher in rainy season than the dry season. These observations indicate that the risk of transmission of viral haemorrhagic fevers in the study areas is high espe

关键词： Viral Haemorrhagic Fevers Tema Port Areas Aedes Risk of Transmission

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非洲时尚设计新浪潮

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艺术与设计 2023年第6期282卷 34-45页

作者：肯·库艾库·尼莫刘祖龙

之前提到“非洲时尚”这几个字的时候，很多人会持怀疑的态度。“非洲有时尚么？”答案当然是肯定的，自21世纪初以来，非洲时尚已经经历了一场巨变。现在的非洲，可以说是全球时尚圈的“蓝血之地”，一大批在非洲土地上成长起来的设计...

之前提到“非洲时尚”这几个字的时候，很多人会持怀疑的态度。“非洲有时尚么？”答案当然是肯定的，自21世纪初以来，非洲时尚已经经历了一场巨变。现在的非洲，可以说是全球时尚圈的“蓝血之地”，一大批在非洲土地上成长起来的设计师们，正在用自己的力量改变着非洲时尚的现状。

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全球时尚中的非洲美学

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艺术与设计 2023年第6期282卷 30-33页

作者：肯·库艾库·尼莫九月

20世纪，在第一代雄心勃勃的非洲时装设计师掀起了时装世界的风潮之前，非洲奇特的美学只是偶尔出现在欧洲时尚界。早在1827年，埃及总督穆罕默德·阿里（Muhammad Al）向法国国王查理十世（King Charles X of France）赠送了一只长颈...

20世纪，在第一代雄心勃勃的非洲时装设计师掀起了时装世界的风潮之前，非洲奇特的美学只是偶尔出现在欧洲时尚界。早在1827年，埃及总督穆罕默德·阿里（Muhammad Al）向法国国王查理十世（King Charles X of France）赠送了一只长颈鹿后，有非洲元素的时尚潮流席卷了巴黎。1922年，图坦卡蒙墓穴的发现，以及随后的全球墓品之旅，引发了一种被称为图特马尼亚的全球趋势。在高级时装中，

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