Prof. Helen Nosakhare Asemota

Research Interests

• Conservation of Biodiversity, Improvement of Production and Exploitation of Tropical Tuber Crops for Sustainable Development, Biochemistry/Biotechnology/Molecular Biology

Citations

Book, Chapter

• McAnuff, M., Asemota, Helen N., Anderson, N.M., Harding, Wayne W., Jacobs, Helen M. . Isolation and characterization of some natural products from Jamaican bitter yam, Dioscorea Dumentorum
• Omoruyi, Felix O., McAnuff, Marie, Dilworth, Lowell L., Morrison, Errol Y., Asemota, Helen N.. Exploitation of Jamaican Tuber Crops for Natural Products Utilization
• Asemota, Helen N., Osagie, A. U.. Postharvest storage of yam tubers: A biochemical perspective [Abstract]
• Brown, V.M.D., Asemota, Helen N., Thangavelu, M., Mantell, S. H.. Genetic diversity in dasheens (Colocasia sp.) and cocoyams (Xanthosoma sp.) grown in Jamaica [Abstract only]
• Brown, V.M.D., Asemota, Helen N., Mansfield, J., Stevens, C. A.. Molecular analyses of bacterial pathogenicity in dasheen (Colocasia sp.) and cocoyam (Xanthosoma sp.) in Jamaica [Abstract only]
• Grindley, P. B., Omoruyi, Felix O., Asemota, Helen N., Morrison, Errol Y. . Effect of yam and dasheen extracts on lipid metabolism in streptozotocin-induced diabetic rats [Abstract only]
• Lobban, K., Wheatley, Andrew O., Asemota, Helen N.. Biochemical changes associated with the cell wall of yam (Dioscorea cayenensis) tubers during short-term storage [Abstract only]
• Mullings, K. A., Asemota, Helen N., Morrison, Errol Y.. Quantification and identification of the cyanoglucosides in economically important yam varieties [Abstract only]
• Brown, V.M.D., Asemota, Helen N., Mansfield, J., Stevens, C.A., Mantell, S.H.. The development of molecular diagnostic tool for the assessment of xanthomonas campestris infections in selected plants
• Wheatley, Andrew O., Asemota, Helen N.. Toward increasing yam production in challenged environments: in vitro studies of the effect of salinity stress on some biochemical parameters of yam (Dioscorea alata) plantlets[Abstract only]
• Wheatley, Andrew O., Iyare, O.A., Glasgow, D.W. , Asemota, Helen N., Grindley, P.B., Ahmad, Mohammed H. Sectional influence of yam (Dioscorea cayenensis) tubers used for minisett on some biochemical parameters of resultant tubers[ Abstract only]
• Brown, V.M.D., Asemota, Helen N., Ahmad, Mohammed H., Thangavelu, M., Mantell, S.H.. Analyses of dasheen (colocasia sp.) and cocoyam (xanthosoma sp.) genomes using PCR-based DNA fingerprinting techniques
• Lobban, K., Asemota, Helen N.. Polyphenol oxidase transformations associated with the in vitro propagation of Jamaican sweet yam (dioscorea alata)
• Asemota, Helen N.. Biotechnological advances towards improved yam production and storage
• Asemota, Helen N.. Biotechnology for yam (Dioscorea sp.) production improvement: A challenge for women scientists
• Wheatley, Andrew O., Osuji, G., Asemota, Helen N.. Differential gene expression and the development of salt tolerance in in vitro yam (Dioscorea alata) plantlets [Abstract]
• McAnuff, M., Omoruyi, Felix O., Harding, Wayne W., Wheatley, Andrew O., Anderson, N.M., Jacobs, Helen M., Morrison, Errol Y. , Asemota, Helen N.. Jamaican yams: Nature's own medicine [Abstract only]
• Wheatley, Andrew O., Asemota, Helen N.. Storage characteristica of yam (Dioscorea sp.) in vitro derived and traditional tubers [Abstract only]
• Knight, O. S., Hamilton, Michelle A. E., Omoruyi, Felix O., Asemota, Helen N.. Cell wall degrading enzymes in in vitro derived plantlets of round-leaf yellow yam (Dioscorea cayenensis) infected with Xanthomonas campestris [Abstract only]
• Omoruyi, Felix O., Dilworth, Lowell L., Asemota, Helen N., Jacobs, Helen M., Morrison, Errol Y. . Effect of cooking on phytic acid levels in some Caribbean tuber crops [Abstract only]
• Riley, C. K., Wheatley, Andrew O., Asemota, Helen N., Ahmad, Mohammed H. Initiation of field-grown yam (Dioscorea sp) vines into culture: Dealing with contamination [Abstract only]
• McAnuff, M., Asemota, Helen N., Anderson, N.M., Harding, Wayne W., Jacobs, Helen M.. Isolation and characterization of steroidal sapogenins from the Jamaican bitter yam
• Wheatley, Andrew O., Ahmad, Mohammed H., Asemota, Helen N. Postflask management of tissue culture plantlets: Biochemical and physiological considerations

Journal, Article

• Asemota, Helen N., Iyare, A.O., Wheatley, Andrew O., Ahmad, Mohammed, H.. Acclimatization of in-vitro grown yam (Dioscorea spp.) plantlets and some enzyme changes
• Asemota, Helen N.. Biotechnology of yams, dasheens and cocoyams for sustainable development
• Wheatley, Andrew O., Osarosemwen, Iyare A., Asemota, Helen N.. Effect of section of Yam (Dioscorea cayenensis) tuber used in minisett on the biochemical properties of the resultant tuber.
• Grindley, P. B., Omoruyi,Felix O., Asemota,Helen N., Morrison,Errol Y. . Carbohydrate digestion and intestinal ATPases in streptozotocin-induced diabetic rats fed extract of yam (Dioscorea cayenesis) or dasheen (Colocasia esulenta)
• Dilworth, L. , Omoruyi, F. O. , Reid, W. , Asemota, H. N. . Bone and faecal minerals and scanning electron microscopic assessments of femur in rats fed phytic acid extract from sweet potato (Ipomoea batatas)
• Green, C. O. , Wheatley, A. O. , Osagie, A. U. , St, A. Morrison EY, Asemota, H. N. . Determination of polymethoxylated flavones in peels of selected Jamaican and Mexican citrus (Citrus spp.) cultivars by high-performance liquid chromatography
• Asemota, Helen N., Osagie, A.U.. Carbohydrate metabolism in sotred yam tubers: Contribution of starch breakdown, glycolysis pentose phospate pathway
• Powell, Melissa P., Wheatley, Andrew O., Tennant, Paula F., Omoruyi, Felix O., Gonsalves, Dennis, Asemota, Helen N., Ahmad, Mohammed H.. The effects of consumption of coat protein transgenic papaya (Carica papaya L.) on liver and kidney enzyme functions in rats [Abstract]
• Riley, Cliff K., Wheatley, Andrew O., Asemota, Helen N.. The physicochemical properties of starches from yams (Dioscorea spp.) grown in Jamaica
• Bahado-Singh, P.S., Wheatley, Andrew O., St. A Morrison, E.Y., Ahmad, I., Asemota, Helen N.. Investigation of the Effect of Food Processing on Glycaemic Indicies of Some Jamaican Foods: A Proactive Approach to Management Type 2 Diabetes Mellitus [Abstracts]
• Dilworth, Lowell L., Omoruyi, Felix O., Simon, Oswald R., St. A Morrison, E. Y., Asemota, Helen N.. Effect of Consumption on Sweet Potato (Ipomea,bataas) Phytic Acid Extract on Blod Glucose, Liver Function and Faecal Mineral Loss: A Case Study With Rat Model
• Dilworth, Lowell L., Omoruyi, Felix O., Simon, Oswald R., St. A Morrison, E. Y., Asemota, Helen N.. Hepatic Carbohydrate and Lipid Metabilizing Enzymes and the Transaminases in Rats Fed Phytic Acid Extrct from Sweet Potato (Ipomea batatas)
• Riley, Cliff K., Wheatley, Andrew O., Adebayo, A. S., Ahmad, I., ST. A Morrison, E. Y., Asemota, Helen N.. Implications of amylose content and in virto digestibility of native Jamaican Yam (Dioscorea sp) Starches in the Formulation of Tablets and Capsules for Diabetics
• McAnuff, Marie, Omoruyi, Felix O., St. A. Morrison, E.Y., Asemota, Helen N.. Changes in some liver enzymes in streptozotocin-Induced diabetic rats fed Sapogenin extract from Bitter Yam (Dioscores polygonoides) or Commercial Diosgenin
• Dilworth, Lowell L., Omoruyi, Felix O., Simon, Oswald R., St. A Morrison, E.Y., Asemota, Helen N.. The Effect of Phytic acid on the Levels of Blood Glucose and Some Enzymes of Carbohydrate and Lipid Metabolism
• Dilworth, Lowell L, Stennett, D.K, Green, C, Bailey, D, Wheatley, Andrew O., Simon, Oswald, Oladiende, F, Asemota, Helen N.. Kidney function analyses in genetically modified hypercholesterolemic mice fed bitter yam (Dioscorea polygonoides) proprietary preparation
• Bahado-Singh, Perceval S., Wheatley, Andrew O., Osagie, A.U, Boyne, Michael, Morrison, Errol Y.St.A., Asemota, Helen N.. Low glycemic index foods: A nutritional approach for management of hyperglycemia and cardiovascular disease in type 2 diabetics
• Mullings, K.A., Asemota, Helen N., Morrison, Errol Y.. Linamarin levels in economically important yam varieties and implications for health {Abstract only]
• Dilworth, L. L. , Omoruyi, F. O. , Asemota, H. N. . In vitro availability of some essential minerals in commonly eaten processed and unprocessed Caribbean tuber crops
• Dilworth, Lowell L., Omoruyi, Felix O., Asemota, Helen N.. Digestive and transport enzymes in rats fed Phytic acid exttract from sweet potato Ipomoea batatas
• Bahado-Singh, Perceval S., Wheatley, Andrew O., Ahmad, Mohammed H., Morrison, Errol Y.St.A, Asemota, Helen N.. Food processing methods influence the glycaemic indices of some commonly eaten West Indies carbohydrate-rich foods
• Agoreyo, Blessing O., Golden, Kerith D., Asemota, Helen N., Osagie, Anthony. Post harvest biochemistry of the plantain (Musa paradisiacal L.)
• Asemota, Helen N., Osagie, A.U., Kahl, G., Gorz, A.. A simple and efficient protocol for the isolation of yam (Dioscorea specie) RNA
• Asemota,Helen N., Grindley,P. B., Omoruyi,Felix O., Morrison,Errol Y. . Hyperglycemia, hyperlipidemia and liver lipid metabolism in streptozotocin-induced diabetic rats fed organic extracts of yams or dasheen
• Asemota, Helen N., Grindley, P. B., Omoruyi, Felix O., Morrison, Errol Y. . Effects of yam and dasheen extracts on the kidney of streptozotocin-induced diabetic rats
• Muzac-Tucker, I., Asemota, Helen N., Ahmad, Mohammed, H. Biochemical composition and storage of Jamaican yams (Dioscorea sp)
• McAnuff, Marie, Omoruyi, Felix. O., Gardener, Michael T., Asemota, Helen N., Morrison, Errol Y. . Alterations in Intestinal Morphology of Streptozotocin-induced Diabetid rats Fed Jamaican Bitter Yam (Diascorea polygonoides) Sapogenin Extract
• Asemota, Helen N., Omoruyi, Felix O., McAnuff, Marie, Dilworth, Lowell L., McFarlane-Anderson, Norma, Morrison, Errol Y., Harding, Wayne W., Jacobs, Helen M., Ahmad, Mohammed H.. Analyses of natural products in Jamaican tuber crops: The need for biotechnological exploitation
• Asemota, Helen N., Ramser, J., Lopez-Peralta, C., Weising, K., Kahl, G.. Genetic variation and cultivar identification of Jamaican yam germplasm by random amplified polymorphic DNA analysis
• Mitchell, Sylvia A., Asemota, Helen N., Ahmad, Mohammed, H. Factors affecting the in-vitro establishment of Jamaican yams (Dioscorea spp.) from nodal pieces
• Asemota, Helen N.. A fast, simple and efficient miniscale method for the preparation of DNA from tissues of yam (Dioscorea spp.)
• Mitchell, Sylvia A., Asemota, Helen N., Ahmad, Mohammed, H. In vitro growth patterns of Jamaica yams (Dioscorea cayenensis and D. trifida) initiated from axillary nodal segments
• Wheatley, Andrew O., Asemota, Helen N., Morrison, Errol Y. . Glycaemic index: Not all carbohydrates are created equal [Abstarct only]
• McAnuff, M. A. , Omoruyi, F. O. , Sotelo-Lopez, A. , Asemota, Helen N. Proximate analysis and some antinutritional factor constituents in selected varieties of Jamaican yams (Dioscorea and Rajana spp.)
• Riley, Cliff K., Adebayo, S.A, Wheatley, Andrew O., Ahmad, Mohammed H., Asemota, Helen N.. Fundamental and derived properties of yam (Dioscorea Spp.) starch powders and implications in tablet and capsule formulation
• Riley, Cliff K., Adebayo, S.A, Wheatley, Andrew O., Asemota, Helen N.. The correlation between granular properties and the in vitro digestion of native starches extracted from yams (Dioscorea spp.)
• Mitchell, Sylvia A., Asemota, Helen N., Ahmad, Mohammed, H. Effects of explant source, culture medium strength and growth regulators on the in-vitro propagation of three Jamaican yams (Dioscorea cayenensis, D. trifida, and D. rotundata)
• Riley, Cliff K. , Wheatley , Andrew O. , Hassan , Ishmael , Ahmad , Mohammed H. , Morrison , Errol Y., Asemota, Helen N. . In vitro digestibility of raw starches extracted from five yam (dioscorea spp.) species grown in Jamaica
• Dilworth, Lowell L., Omoruyi, Felix O., Simon, Oswald R., Morrison, Errol Y., Asemota, Helen N.. Hypoglycemia and Faecal Minerals in Phytate Fed Rats
• Riley, C. K. , Bahado-Singh, Perceval S. , Wheatley, Andrew. O. , Ahmad, Mohammed H. , Asemota, Helen. N. . Relationship between the physicochemical properties of starches and the glycemic indices of some Jamaican yams (Dioscorea spp.)
• Grindley, P. B., Omoruyi, Felix O., Asemota, Helen N., Morrison, Errol Y. . Blood lipids and lipid metabolism in the liver of sreptozotocin-induced diabetic rats fed organic extracts of yam (d. cayenensis, cv. round leaf yellow yam) and dasheen (c. esculenta)
• McAnuff, Marie, Omoruyi, Felix O., Morrison, Errol Y., Asemota, Helen N.. Hepatic Function Enzymes and Lipid Peroxidation in Streptozotocin-Induced Diabetic Rats Fed Bitter Yam (Dioscorea Polygonoides) Steroidal Sapogenin Extract
• Asemota, Helen N., Gorz, A., Kahl, G., Osagie, A.U.. The probing of yam (Dioscorea sp) DNA with a heterologous yeast phosphofrutokinase gene
• Wheatley, Andrew, O., Asemota, Helen N., Morrison, Errol Y. . Glycaemic Index: Not All Carbohydrates are Created Equal [Abstract]
• McKoy, Marsha-Lyn G., ., Omoruyi, Felix O., Simon, Oswald R., Asemota, Helen N. . Investigation of the Effects of a Sapogenin Rich Preparation from a Jamaican Yam (Dioscorea sp.) on Blood Cholesterol Levels in Rats
• Brown, V.M.D., Asemota, Helen N., Thangavelu, M., Mantel, S.H.. Genetic variation among dasheen (colocasia sp.) and cocoyam (xanthosoma sp.) grown in Jamaica by PCR based analyses
• Riley, Cliff K., Wheatley, Andrew O., Hassan, Ishmael, Ahmad, Mohammed H., Morrison, Errol Y. , Asemota, Helen N.. In Vitro Digestibility of Raw Starches Extracted from Five Yam (Dioscorea sp.) Grown in Jamaica
• McAnuff, Marie, Omoruyi, Felix O., Morrison, Errol Y. , Asemota, Helen, N.. Plasma and Liver Lipid Distributions in Streptozotocin - induced Diabetic Rats Fed Sapogenin Extract of the Jamaican Bitter Yam ( Dioscorea Polygonoides )
• Wheatley, Andrew O., Ahmad, Mohammed H., Asemota, Helen N.. Development of salt adaptation in vitro greater yam (Dioscorea alata) plantlets
• Omoruyi, Felix O., McAnuff-Harding, M.A, Asemota, Helen N.. Intestinal lipids and minerals in streptozotocin-induced diabetic rats fed bitter yam (Dioscorea polygonoides) sapogenin extract
• McAnuff-Harding, M.A, Omoruyi, Felix O., Asemota, Helen N.. Intestinal disaccharidases and some renal enzymes in streptozotocin-induced diabetic rats fed sapogenin extract from bitter yam (Dioscorea polygonoides)
• Wheatley, Andrew O., Asemota, Helen N., Ahmad, Mohammed H.. A comparison of the storageability of in vitro derived and traditionally produced yam (Dioscorea cayenensis) tubers
• Wheatley, Andrew O., Ahmad, Mohammed H., Asemota, Helen N., Osuji, G.. Development of salt tolerance in in vitro yam (Dioscorea) plantlets
• Grindley, P. B., Omoruyi, Felix O. , Asemota, Helen N. , Morrison, Errol Y. . Effect of yam (Dioscorea cayenensis) and dasheen (Colocassia esculenta) extracts on the kidney of streptozotocin-induced diabetic rats
• Riley, C. K. , Adebayo, S. A. , Wheatley, Andrew. O. , Asemota, Helen. N. . The interplay between yam (Dioscorea sp.) starch botanical source, micromeritics and functionality in paracetamol granules for reconstitution
• Dilworth, L. , Omoruyi, Felix. O. , Reid, W. , Asemota, Helen. N. . Bone and faecal minerals and scanning electron microscopic assessments of femur in rats fed phytic acid extract from sweet potato (Ipomoea batatas)
• McAnuff, M. A. , Harding, Wayne W. , Omoruyi, F. O. , Jacobs, Helen , Morrison, E. Y. , Asemota, Helen N. Hypoglycemic effects of steroidal sapogenins isolated from Jamaican bitter yam, Dioscorea polygonoides
• Omoregie, S.N., Asemota, Helen N., Mantell, S.H., Osagie, A. U., Ahmad, Mohammed H. Occurrence of free-living bacteria in tubers of Dioscorea yam
• Riley, Cliff K., Wheatley, Andrew O., Asemota, Helen N.. Isolation and characterization of Starches from eight Dioscorea alata cultivars grown in Jamaica

Conference Proceedings

• Dilworth, Lowell L., Omoruyi, Felix O., Morrison, Errol Y., Wheatley, Andrew O., Asemota, Helen N. . Blood glucose and some faecal minerals in rats fed phytic acid extract from sweet potato (ipomea batatas)
• Riley, C.K., Morrison, E.Y.St.A, Wheatley, A.O., Ahmad, A.M., Asemota, H.N., Hassan, I.. In vitro digestibility of starches from yams (dioscorea spp) grown in Jamaica: A condition for glucose availability
• Wheatley, A.O., Ahmad, M.H., Morrison, E.Y.St.A, Asemota, H.N.. Biotechnological improvement of tuber crops for wealth and wellness amongst Caribbean people
• Dilworth, Lowell L., Omoruyi, Felix O., Jacobs, Helen M., Morrison, Errol Y., Asemota, Helen N.. Anti-nutritional factors and mineral contents in some Caribbean tuber crops: Effects of processing
• Riley, Cliff K., Wheatley, Andrew O., Hassan, Ishmael, Ahmad, Mohammed H., Asemota, Helen N.. Morphological characterization of starches extracted from six Jamaican yam (Diascorea spp.) species [Abstract]
• Riley, Cliff K., Wheatley, Andrew O., Adebayo, A.S, Ahmad, Mohammed H., Morrison, Errol Y.St.A, Asemota, Helen N.. Formulation of drug delivery systems for diabetics using yam (Dioscorea sp.) starches; effect of starch physicochemical properties
• Bahado-Singh, Perceval S., Wheatley, Andrew O., Osagie, A.U., Boyne, Michael, Morrison, Errol Y.St.A., Ahmad, Mohammed H., Asemota, Helen N.. Lifestyle dietary intervention using low glycemic index foods for the management of type 2 diabetes in the Caribbean
• Riley, Cliff K., Wheatley, Andrew O., Asemota, Helen N.. The effect of the physicochemical properties on the in vitro digestability of starches extracted from yams(Dioscorea spp.) grown in Jamaica
• Riley, Cliff K., Adebayo, A.S, Wheatley, Andrew O., Asemota, Helen N.. Exploitation of yam (Dioscorea spp.) glycosidic biomaterials in paracetamol formulations
• Powell, Melissa P., Wheatley, Andrew O., Tennant, Paula F., Omoruyi, Felix O., Asemota, Helen N., Gonsalves, Dennis, Ahmad, Mohammed H. . Rat Intestinal Transport Enzymes: Effects of Consumption of Transgenic Papaya (Carica papaya L.)
• Powell, Melissa P., Wheatley, Andrew O., Tennant, Paula F., Omoruyi, Felix O., Asemota, Helen N., Gonsalves, Dennis, Morrison, Errol Y., Ahmad, Mohammed H.. Effects of consumption of transgenic papaya (Carica papaya L.) on rat intestinal disaccharidases [Abstract]
• McAnuff, Marie A., Omoruyi, Felix O., Morrison, Errol Y., Asemota, Helen N. . Science and technology for economic development: Technology driven agriculture and agro-processing
• McKoy, Marsha-Lyn G., Omoruyi, Felix O., Asemota, Helen N., Simon, Oswald R.. Evaluation of toxicological effects of a sapogenin-rich yam (Dioscorea sp.) preparation with potential for treating hypercholesterolemia
• Earl-Barrett, Simone T., Lobban, Kathleen S., Wheatley, Andrew O., Asemota, Helen N.. Genetic variation and cultivar identification of Diascorea alata using random amplified polymorphic DNA and amplified fragment length polymorphism [Abstract]
• Lobban, Kathleen S., Wheatley, Andrew O., Osuji, G., Asemota, Helen N.. Application of RFDD in the determination of genes triggered during the sprouting of yam tubers (Diascorea sp.) [Abstract]
• McAnuff, Marie, Omoruyi, Felix O., Gardner, Michael T., Morrison, Errol Y., Asemota, Helen N.. Intestinal morphometric alterations in streptozotocin-induced diabetic rats fed bitter yam (D. polygonoides) sapogenin extract [Abstract]
• Muzac-Tucker, I, Asemota, Helen N., Ahmad, Mohammed H.. Analysis of genetic polymorphism in yam DNA by PCR techniques [Abstract]
• Green, C.O., Wheatley, A.O., Dilworth, L.L., McGrowder, D., Mills, J., Morrison, E., Asemota, H.N.. Effect of Jamaican ortanique peel plymethoxylated flavones on liver and kidney function in diet-induced hpercholesterolaemic rats