John Owusu

ORCID: 0000-0003-3108-684X
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Research Areas
  • Protein Hydrolysis and Bioactive Peptides
  • Global trade, sustainability, and social impact
  • Phytochemicals and Antioxidant Activities
  • Meat and Animal Product Quality
  • Insect Utilization and Effects
  • Proteins in Food Systems
  • Global trade and economics
  • Fermentation and Sensory Analysis
  • Microbial Metabolites in Food Biotechnology
  • African history and culture studies
  • Food Chemistry and Fat Analysis
  • Antioxidant Activity and Oxidative Stress
  • Microbial Inactivation Methods
  • Horticultural and Viticultural Research
  • African Botany and Ecology Studies
  • Polysaccharides Composition and Applications
  • Food Drying and Modeling
  • Animal and Plant Science Education
  • Biochemical effects in animals
  • Mining and Resource Management
  • Ginkgo biloba and Cashew Applications
  • Botanical Research and Applications
  • Forest Management and Policy
  • Aquaculture Nutrition and Growth
  • Microwave-Assisted Synthesis and Applications

Forestry Research Institute of Ghana
2023

Koforidua Technical University
2012-2023

Council for Scientific and Industrial Research
2023

Jiangsu University
2012-2015

University of Northern Iowa
2001

University of Connecticut
1998

The aim of this study was to investigate the effect multi-frequency power ultrasound (sweeping frequency and pulsed (SFPU) sequential dual (SDFU)) on enzymolysis corn gluten meal (CGM) structures major protein fractions (zein, glutelin) CGM. results showed that pretreatments improved significantly (P < 0.05) degree hydrolysis conversion rate changes in UV–Vis spectra, fluorescence emission surface hydrophobicity (H0), content SH SS groups indicated unfolding zein glutelin by ultrasound....

10.1016/j.ultsonch.2014.12.013 article EN cc-by-nc-nd Ultrasonics Sonochemistry 2015-01-08

Abstract BACKGROUND The disadvantages which stem from the use of traditional enzymolysis protein has necessitated need to employ sweeping frequency and pulsed ultrasound (SFPU) in pretreatment rapeseed prior proteolysis order bring about improvement efficiency. Further, determine mechanism ultrasound‐accelerated RP , effects SFPU on kinetics, thermodynamics, molecular conformation microstructure were investigated. RESULTS Kinetic studies showed that improved by decreasing apparent constant K...

10.1002/jsfa.7198 article EN Journal of the Science of Food and Agriculture 2015-04-02

A scheme for preparing milk ACE inhibitory peptides by in vitro proteolysis and simulated gastrointestinal digestion was constructed. The ultrasonic assisted pretreatment used to improve the enzymolysis of protein. in-situ real-time infrared establish monitoring model enzymatic process. Results showed that under conditions single frequency 28 kHz, ultrasound time 40 min, power density 20 W/L, protein concentration 34 g/L, batch ratio 2:4 initial temperature 30 °C, inhibition rate gastric...

10.1016/j.ultsonch.2019.104859 article EN cc-by-nc-nd Ultrasonics Sonochemistry 2019-11-05

Microwave-assisted extraction (MAE), which is a known method for the of phenolic compounds from plants, was employed to extract polyphenols in Jerusalem artichoke tuber (JAT) using response surface methodology optimized conditions microwave power (MP), extraction-time (TE) and temperature (Temp). The MAE used improve yield JAT. ethanolic extracts JAT obtained by were quantitatively analyzed total polyphenol content (TPC), flavonoid (TFC) 2, 2′-diphenyl-1-picrylhydrazyl (DPPH), ferric...

10.1016/j.focha.2023.100507 article EN cc-by Food Chemistry Advances 2023-10-29

In 1983, Ghana embarked on a program of structural adjustment under the auspices World Bank and International Monetary Fund, to resuscitate economy foster development. This paper utilizes Lagos Plan Action, comprehensive, continent-wide effort African-led policy strategy for economic development African continent, examine contribution an integrated in Ghana. Adjustment is examined as form transformation, evidenced by emergent intranational (intra- inter-sectoral) international linkages...

10.1111/0033-0124.00282 article EN The Professional Geographer 2001-05-01

Journal Article Has ECOWAS Promoted Trade among Its Members? Get access Dean M. Hanink, Hanink University of Connecticut Search for other works by this author on: Oxford Academic Google Scholar J. Henry Owusu African Economies, Volume 7, Issue 3, October 1998, Pages 363–383, https://doi.org/10.1093/oxfordjournals.jae.a020956 Published: 01 1998

10.1093/oxfordjournals.jae.a020956 article EN Journal of African Economies 1998-10-01

Since the early 1980s, most Sub-Saharan African countries have resorted to structural adjustment programs reform their ailing economies. Adjustment, however, may provide a convenient means for governments of adjusting economies and international capital meet current economic political interests, usually by sacrificing physical environment, with huge environmental costs country. This paper uses Ghana's forestry sector, which has been characterized dramatic increase in woodexports since...

10.1111/0033-0124.00130 article EN The Professional Geographer 1998-11-01

Many reports claim the existence of athermal effects in microwave-induced reactions, and this challenge assumption that thermal effect (heating) is sole factor microwave heating. Therefore, Maillard reaction d-glucose/glycine degradation polysaccharide from Porphyra yezoensis (PSPY) were investigated. Browning reactions monitored by measuring heating rate, UV-absorbance brown color, UV-vis synchronous fluorescence spectra, GC/MS analysis intrinsic viscosity degradation. Heating solution...

10.1016/j.carbpol.2013.04.033 article EN cc-by Carbohydrate Polymers 2013-04-22

In 1983, Ghana embarked on a program of structural adjustment under the auspices World Bank and International Monetary Fund, to resuscitate economy foster development. This paper utilizes Lagos Plan Action, comprehensive, continent-wide effort African-led policy strategy for economic development African continent, examine contribution an integrated in Ghana. Adjustment is examined as form transformation, evidenced by emergent intranational (intra- inter-sectoral) international linkages...

10.1080/00330124.2001.9628454 article EN The Professional Geographer 2001-05-01

Tomato wine antioxidant properties were studied. The was produced using tomato musts of different pH levels, which fermented at 15 and 20C Saccharomyces bayanus, 818. wines with levels 4.11, 3.40 3.20 designated as C (Control), A B, respectively. total activity (TAA) the higher (P < 0.05) than juice. TAA those 15C; also, recorded best rest. significantly correlated phenolics (R = 0.851, P 0.01), flavonoid 0.738, anthocyanin 0.613, 1, 1-diphenyl-2-picryl-hydrazil (DPPH) 0.567, ascorbic acid...

10.1111/jfbc.12113 article EN Journal of Food Biochemistry 2015-01-20

In order to avoid the discomfort of digesting milk protein and make full use gastrointestinal digestive function, a macromolecular peptide was prepared with ACE inhibitory activity after digestion as index.

10.1039/d0fo00151a article EN Food & Function 2020-01-01

Aims: The aim of the study was to evaluate physicochemical, sensory and functional properties coconut flour (CF), wheat composite (CWCF) Cake produced from CF CWCF.&#x0D; Methodology: Flour prepared matured ripe fruit (CF). It then blend with (WF) into produce cake. CWCF were subjected proximate composition analyses. Also, physical properties, attributes cakes determined.&#x0D; Results: moisture content ranged 4.5 9.04 g/100 g, ash 4.10 6.41 g dietary fiber 11.16 g. exhibited a higher (87.1±...

10.9734/afsj/2019/v13i130095 article EN Asian Food Science Journal 2019-11-01

Like many other Sub-Saharan African countries, Ghana implemented an orthodox Structural Adjustment Programme (SAP), to resuscitate its ailing economy, in the early 1980s. Subsequently, there has been a dramatic expansion production and export of processed wood. Based on empirical study Ghana's formal wood processing industry, this paper discusses various determinants that have combined boost export-oriented output particularly first decade programme, assesses extent which SAP-based policy...

10.1017/s0022278x01003524 article EN The Journal of Modern African Studies 2001-03-01

The over-reliance of the food industry in Ghana on imported gums ultimately increases final cost processed food. Gums produced by some trees have not been exploited commercially, probably due to lack data properties which influence their application industry. This study was therefore undertaken assess suitability obtained from Cashew, Albizia, and Khaya applications, using Acacia gum as a control. studied include organoleptic, pH, solubility, viscosity, swelling power, water binding...

10.47127/ijtmr.v1i5.40 article EN International Journal of Technology and Management Research 2020-03-12
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