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Philippa Ojimelukwe  - - - 
Top co-authors
Michael A. Gbadegesin

24 shared publications

Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan 90001, Oyo State, Nigeria

Christopher J. Atkinson

15 shared publications

Department of Agriculture, Health and Environment, Natural Resources Institute, University of Greenwich, Chatham ME4 4TB, UK

Doris Akachukwu

1 shared publications

Department of Biochemistry, Michael Okpara University of Agriculture, Umudike, Umuahia P.M.B 7267, Abia State, Nigeria

Publication Record
Distribution of Articles published per year 
(1993 - 2018)
Total number of journals
published in
Publications See all
Article 0 Reads 0 Citations Biochar Remediation Improves the Leaf Mineral Composition of Telfairia occidentalis Grown on Gas Flared Soil Doris Akachukwu, Michael Adedapo Gbadegesin, Philippa Chinye... Published: 13 July 2018
Plants, doi: 10.3390/plants7030057
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
This study evaluates the effects of remediation of gas flared soil by biochar on the nutritional composition of cultivated Telfairia occidentalis leaves, relative to non-gas flared soil. Gas flared soils are degraded due to the presence of heavy metals, noxious gases, carbon soot and acidic rain. Biochar produced from oil palm fibre was applied at five different amounts: 0 t ha−1, 7.1 t ha−1, 13.9 t ha−1, 20.9 t ha−1 and 28.0 t ha−1 to containerized soils (both gas flared and control soil), inside a greenhouse, which were allowed to mineralize for two weeks. Two viable seeds of T. occidentalis per replicate were sown. After eight weeks of growth, leaves were harvested, dried and chemically analyzed. Application of biochar significantly increased leaf ash and crude fibre content of Telfairia occidentalis. Plants from soil treated with 13.9 t ha−1 of biochar had the highest concentrations of vitamins A, B1, B2, B6, C and E irrespective of soil type. Maximum increase in leaf vitamin and mineral content was obtained from leaves cultivated on gas flared soil treated with 13.9 t ha−1 and 7.1 t ha−1 of biochar respectively. The results show that biochar treatment can increase leaf mineral concentrations and that this effect is dependent on the amount of biochar application.
Article 0 Reads 0 Citations Contribution of Planting Space and Harvesting Period on the Nutrient Compositions of Some OFSP Sweet Potato Varieties Gr... Philippa. C Ojimelukwe, Anthony. N Ukom, Obianuju. O Kalu Published: 01 January 2018
Journal of Nutrients, doi: 10.18488/journal.87.2018.41.1.9
DOI See at publisher website
Article 0 Reads 0 Citations Evaluation of the Effect of Planting Distance and Harvesting Time on the Carotenoids and Phytochemicals of Selected Oran... Obianuju Orimma Kalu, Philippa Chinyere Ojimelukwe, Anthony ... Published: 01 November 2017
International Letters of Natural Sciences, doi: 10.18052/
DOI See at publisher website ABS Show/hide abstract
We evaluated the carotenoid profile and concentration (by HPLC) and the phytochemical content of two OFSP varieties (Umuspo 3 and Ex-Igbariam) planted at three distances (20 cm, 30 cm and 40 cm) and harvested in two different periods (12th and 16th weeks after planting) respectively. Carotene contents of the outer peel and inner flesh of the sweet potato varieties were also determined. The results showed wide variation in the carotenoid and phytochemical content among the varieties at different planting spaces and harvest periods. Umuspo 3 planted at 20 cm, 30 cm and 40 cm had significantly greater carotenoid concentration than Ex-Igbariam variety. The predominant carotenoid was β-carotene with highest concentration obtained from 40 cm planting distance (92.82µg/g) and 30 cm (80.97µg/g) for Umuspo 3. Ex-Igbariam at 30 cm planting distance contained 2.51µg/g β-carotene when harvested after 16th weeks. Also the highest β-carotene concentration was from Umuspo 3 flesh sample planted 30 and 40 cm (409.45 and 441.15 mg/100g) and the peel for samples planted 30 and 40 cm (490.47 and 640.69 mg/100g, respectively) at the 12th week of harvest. Flavonoids were present in significant amounts (310.62mg/100g) in Umuspo 3 planted at 30 cm and harvested after 12th week while in total polyphenol, significant quantities of ≈42.12mg/100g was present in Ex-Igbariam spaced at 30 cm and 40 cm and harvested after 16th week. Provitamin A carotenoid was calculated and Umuspo 3 pro-vitamin A carotenoid was significantly higher (p< 0.05) with highest concentration (742.26 RE/100g) present in samples from 40 cm planting distance. The results showed that planting space and harvesting period had significant impact on the carotenoid and phytochemical concentrations of OFSP varieties. Planting distances of 30 and 40 cm are recommended for high carotenoid content in the two sweet potato varieties.
Article 0 Reads 1 Citation Physicochemical and functional properties of starch from under-utilized yam ( Dioscorea spp ) and cocoyam ( Xanthosoma m... Anthony N. Ukom, Philippa C. Ojimelukwe, John M. Emetole Published: 21 October 2015
Starch - Stärke, doi: 10.1002/star.201500114
DOI See at publisher website
Article 0 Reads 0 Citations Changes induced by infestation on some chemical properties of cowpea seeds Philippa Ojimelukwe Published: 01 January 2002
Plant Foods for Human Nutrition, doi: 10.1023/a:1015218715716
DOI See at publisher website
Article 0 Reads 2 Citations Effects of infestation on the nutrient content and physiocochemical properties of two cowpea ( Vigna unguiculata) variet... Philippa Ojimelukwe, J.C. Onweluzo, E. Okechukwu Published: 01 January 1999
Plant Foods for Human Nutrition, doi: 10.1023/a:1008039411269
DOI See at publisher website