检索结果-南通市图书馆

Effect of Processing Method on Carotenoid Profiles of Oils from Three Varieties of Nigerian Palm Oil (Elaise guinensis)

引用

Journal of Biophysical Chemistry 2021年第3期12卷 23-31页

作者： sunday onyekwere eze Joshua Nkechukwu Orji Victor Uchenna Okechukwu Daniel Omeodisemi Omokpariola Theresa Chisom Umeh Nwanneamaka Rita Oze Department of Pure and Industrial Chemistry Abia State University Uturu Nigeria Department of Pure and Industrial Chemistry Nnamdi Azikiwe University Awka Nigeria Department of Chemistry Federal University of Technology Owerri Nigeria

This study assessed the effect of processing method on the carotenoid profile of oil from three varieties of Nigerian oil palm fruits (Elaise guinensis). Specific varieties of the Elaise guinensis, which are the dura, pesifera and tenera were obtained from National Institute for Oil Palm Research (NIFOR) in Edo state, Nigeria. The samples were divided into two and processed using two different methods as commonly practiced in south-eastern Nigeria, the hot and cold processes. The oil extracted from each of the processes was then analyzed for oil characteristics using standard analytical methods while the carotenoid profile was analyzed using HPLC C-21 column. The results generated were subjected to the one-way analysis of variance (ANOVA). The results of carotenoid constituent identified include: lutein, neurosporene (trans), neurosporene (cis), α-Zeacarotene(cis), α-Zeacarotene(trans), phytoene, phytofluene, β-zeacarotene, 13 and 13’ cis α-carotene, 13 cis β-carotene, trans α-carotene, 9 cis α-carotene, trans β-carotene, αcarotene a(cis), α-carotene b(cis), α-carotene (trans), γ-carotene (trans), γ-carotene b(cis), lycopene (cis) and lycopene (trans). The results of physicochemical characteristics of the oil samples extracted range from 0.922 ± 0.004 - 0.916 ± 0.001 for specific gravity (SG), 8.10 ± 0.17 - 4.88 ± 0.04 mg KOH/g for acid value, 4.29% ± 0.02% - 2.44% ± 0.02% for free fatty acid value (FFA), 6.00 ± 0.21 to 204.67 ± 0.98 mgKOH/g for saponification value and 9.53 ± 0.23 - 5.25 ± 0.33 mEq/kg;for peroxide value while the carotenoids values were between 53.735 ± 0.10 and 123.389 ± 0.20 mg/100g. From the result, we can observe that the main constituent of the palm oil carotenoid is the β-carotene which makes up to about 80% of the total carotene. Statistical analysis revealed that no significant difference exists between the mean of each of the processing methods on the carotenoid profile of the oil sample analyzed.

关键词： Elaise guinensis Carotenoid Acid Value Free Fatty Acids β-Carotene Palm Oil Nigeria

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparative Evaluation of the Effects of Velogenic Newcastle Disease Virus Infection on the Hematology of Ducks and Chickens

引用

Open Journal of Veterinary Medicine 2014年第6期4卷 113-121页

作者： Chekwube Paul eze John Osita Arinze Okoye Innocent Okonkwo Ogbonna Wilfred sunday ezema Didacus Chukwuemeka eze Emmanuel Chukwudi Okwor Christian Okorie-Kanu Kalu Idika Idika Department of Veterinary Parasitology and Entomology University of Nigeria Nsukka Nigeria Department of Veterinary Pathology and Microbiology University of Agriculture Umudike Nigeria Department of Veterinary Pathology and Microbiology University of Nigeria Nsukka Nigeria Microbiology Unit Department of Biological Sciences University of Agriculture Makurdi Nigeria

The hematological lesions consequent upon velogenic Newcastle disease virus (NDV) infection were investigated in 6-week-old ducks and chickens. Following intramuscular inoculation, the results indicated significantly lower (p < 0.05) packed cell volume (PCV) in infected chickens (IC) on days 3 - 9 post inoculation (PI) and in infected ducks (ID) on days 3 - 15 PI. The hemoglobin concentrations were significantly lower (p < 0.05) in IC on days 3, 6 and 15 PI while in the ID, they were significantly lower (p < 0.05) on days 3, 9 and 15 PI. The total erythrocyte counts were significantly lower (p < 0.05) in IC on days 3, 9 and 15 PI and in ID, they were significantly lower (p < 0.05) on days 3 and 9 PI. The mean corpuscular values indicated macrocytic hypochromic anemia in IC and macrocytic normochromic anemia in ID. The leucogram showed leucopenia in IC and initial leucopenia followed by leucocytosis in ID. The hematological pictures of the velogenic NDV in this experiment indicate less susceptibility of ducks when compared with the chickens. The severity of this virus infection in chickens and the mild clinical signs and lesions presented by ducks showed that ducks are far less susceptible than chickens.

关键词： Velogenic Newcastle Disease Experimental Infection Hematology Ducks Chickens

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparison of the Serum Proteins and Immune Responses of Velogenic Newcastle Disease Virus Infected Chickens and Ducks

引用

Open Journal of Veterinary Medicine 2014年第6期4卷 122-128页

作者： Chekwube Paul eze Vincent S. O. Shoyinka John Osita Arinze Okoye Wilfred sunday ezema Innocent Okonkwo Ogbonna Didacus Chukwuemeka eze Emmanuel Chukwudi Okwor Ogbu Kenneth Ikejiofor Department of Veterinary Pathology and Microbiology University of Nigeria Nsukka Nigeria Microbiology Unit Department of Biological Sciences University of Agriculture Makurdi Nigeria National Veterinary Research Institute Vom Nigeria

The effect of velogenic Newcastle disease virus (vNDV) on the immune responses and serum proteins was investigated in six-week-old ducks and chickens. Results showed that weight loss was markedly significant (p < 0.05) from days 3 - 21 (PI) in chickens and mild (p < 0.05) on days 3 and 15 PI in ducks. The antibody response obtained showed significant (p < 0.05) increase in infected chickens (IC) than those of the infected ducks (ID). While the total serum protein and serum globulin increased significantly (p < 0.05) in IC on days 7 and 14 PI, they decreased significantly (p < 0.05) in ID only on day 21 PI. The immune responses and serum protein values in this experiment X-ray showed less susceptibility of ducks when compared with the chickens. This may be related to marked anorexia and severe dehydration observed in the latter consequent upon serum concentration. Ducks could be maintaining the endemicity of Newcastle disease (ND) as reservoir host.

关键词： Velogenic Newcastle Disease Experimental Infection Immune Response Serum Proteins Ducks Chickens

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Early on Set Presbyacusis in Gwagwalada Area Council of Federal Capital Territory, Abuja

引用

International Journal of Otolaryngology and Head & Neck Surgery 2021年第3期10卷 238-249页

作者： David Femi Folorunso Enoch Auta Dahilo Ibeneche Onyemuchechi Gbujie Fredrick M. Damtong Oladeji Raheem Quadri Basil E. Nwankwo Titus sunday Ibekwe onyekwere George Nwaorgu Department of ENT/Head & Neck Surgery University of Abuja Teaching Hospital Gwagwalada-Abuja Nigeria Department of ENT Federal Teaching Hospital Gombe Gombe State Nigeria Chukwuemeka Odumegwu Ojukwu University Teaching Hospital Awka Anambra State Nigeria Department of Otorhinolaryngology University College Hospital Ibadan & College of Medicine University of Ibadan Oyo State Nigeria

Background: Presbyacusis is a major cause of hearing loss among seniors. The condition attracts attention following the prediction of World Health Organization that elderly population is expected to hit 1.2 billion by 2025 out of which more than 500 million of them will suffer from sensorineural hearing loss(SHL) worldwide. The studies have shown that this begins to reflect on audiograms as from the third decade, mainly in the high frequencies. Aim/objective: This study evaluated the early on-set presbyacusis at Gwagwalada Area Council of the Federal capital territory-Abuja. Method: It was a multi-stage sampling, prospective, cross-sectional study done in FCT, Abuja. Participants from age 20 years and above were recruited into the study after signing informed consent. The presumed risk factors as highlighted in the questionnaire were screened out. Results: Two hundred and two participants were recruited into the study, out of which twelve were excluded from the analysis on account of various exclusion criteria. The age range of the participants was 20 to 79 years, with an average age of 54.8 ± 5.6 years. One hundred and fourteen (60.0%) males and seventy-six (40.0%) females participated in the study. The commonly reported associated symptom was tinnitus. About 32.0% of the participants had moderate sensorineural hearing loss. However, the prevalence of presbyacusis was 28.2% for age below 65 years and 78.8% for 65 years and above. The cumulative prevalence was 54.2%. Conclusion: The study has shown that presbyacusis occur as early as the third decade of life, possibly subclinical before age 65 years. The prevalence was 28.2% before age 65 years and 78.8% from age 65 years, there was a steady increase in percentage of participants with SNHL from age 20 years, and a significant sudden increase from 65 years was observed with a sloping tracing at high frequency.

关键词： Presbyacusis Age-Related Hearing Loss Young Adults Sensorineural Hearing Loss and Pure Tone Audiometry

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：