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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Indonesian Food Science and TechnologyJournal Asia Pacific Journal of Sustainable Agriculture, Food and Energy (APJSAFE)
Adzitey, Frederick
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Energy Environmental Science Immunology & microbiology

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The Effects of Garlic Oil and Tartaric Acid on the Quality of Shrimp Stored at 4°C Md Noordin, Wan Norhana; Shunmugam, Nannthini; Adzitey, Frederick; Huda, Nurul
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 16, No 1 (2021): May 2021
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.448

Abstract

The objectives of this study were to determine the effects of garlic oil (GO) and tartaric acid (TA) on microbiological, pH, and Thiobarbituric Acid Reactive Substances (TBARS) (lipid peroxidation) of shrimp stored at 4°C. Shrimp of 2 kg were dipped in GO and TA solutions at 1:2 shrimp/treatment solutions (w/w) for 30 min under 25ºC. Sodium metabisulfite (MBS) and sterile distilled water (dH20) were used as positive and negative controls, respectively. Shrimp were drip-dried for 5 min, packaged, and stored in a chiller (4°C) for 10 days. The shrimp were analysed on days 0, 3, 5, 7, and 10. Total aerobic plate count, psychotropic bacteria count, Listeria monocytogenes, Salmonella enterica serovar Typhimurium (S. Typhimurium) and Vibrio parahaemolyticus counts ranged from 3.52-8.73 log CFU/g, 3.30-5.16 log CFU/g, 3.48-7.60 log CFU/g, 3.42-6.34 log CFU/g and 3.48-5.55 log CFU/g, respectively. The pH of shrimp ranged from 6.64 to 8.03. The pH of shrimp dipped in MBS (7.70) and TA+GO (7.70) was lowest at the end of storage period. TBARS values ranged from 0.70-2.66 and TBARS values for shrimp treated with MBS (1.83) were lowest at day 10. In general, microbiological counts, pH and TBARS values of sample treated with TA+GO increased with storage time, however comparable to MBS. Treatment of shrimp with GO and TA could inhibit the growth of foodborne pathogens. The pH of the test and control shrimp were similar on day 10. Lipid peroxidation was lowest for TA and MBS treated shrimp by day 10.
Assessment of cattle welfare on Ghanaian farms Mogre, Joshua; Adzitey, Frederick; Teye, Gabriel
Asia Pacific Journal of Sustainable Agriculture, Food and Energy Vol. 9 No. 2 (2021): December 2021
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy Network (SAFE Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/apjsafe.v9i2.113

Abstract

The objective of the study was to assess farm welfare conditions and the observance of welfare by cattle farmers in Ghana. The study applied field approaches to gather and analyze data. Data was collected from farms in the Northern, North East and Savanna regions. A total of three hundred and eighteen (318) cattle farmers were interviewed using semi-structured questionnaire. Observations and focus group discussions were also used to obtain data or verify some of the responses from the cattle farmers. Data collected was classified and summarized on the basis of the information provided. The study found evidence that most farmers were concerned about their animal’s welfare, but did not place equal weight on the five freedoms of animal welfare. Farmers placed the most premium on freedom from hunger, malnutrition and thirst (95%), and freedom from pain, injury and disease (90%). Farmers placed less premium on their animals freedoms from fear and distress (50%), and freedom from physical and thermal discomfort (50%). The freedom to express normal patterns of behaviour (0%) was not considered by the farmers. Observance of animal welfare by cattle farms was relatively below acceptable standards and government interventions are needed to improve animal welfare in Ghana.
Investigation of the contamination rate of guinea fowl meats and its related samples by Escherichia coli using one health approach Monten, Stephen K. Kanten; Adzitey, Frederick; Bawah , Juliana; Depison; Huda, Nurul
Indonesian Food Science and Technology Journal Vol. 8 No. 1 (2024): Volume 8. Number 1, December 2024 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v8i1.32101

Abstract

Guinea fowl meat is an important source of protein and other nutrients for humans. Their contamination by bacteria is a threat to public health and a one health approach of tackling this is warranted. This study investigated the contamination rate of guinea fowl meats and it related samples by Escherichia coli using one health approach. It also investigated the antibiotic resistance of the Escherichia coli from the guinea fowl sources. A total of 200 samples were randomly collected from guinea fowl wet markets in Ghana and the contamination of guinea fowl sources by Escherichia coli was done using the procedures in the Bacteriological Analytical Manual of USA-FDA. The disc diffusion method was used for antibiotic resistance test following confirmation by polymerase chain reaction. The contamination rate of Escherichia coli was the highest for processing knife (96.0%) and least for water from main source (28.0%). Faeces, processing floor, processor's hands, meat, water used for washing meat and processing table were all contaminated with Escherichia coli. The partial fragment analysis of uidA gene by PCR yielded a band of ~147 bp for confirmation of Escherichia coli. The Escherichia coli isolates exhibited highest resistance to ceftriaxone (60.5%), but susceptibility to azithromycin (94.7%). Intermediate resistance was highest for gentamicin (34.2%). The MAR index ranged from 0.0 (resistant to 0 antibiotic) to 0.8 (resistant to 7 antibiotics) with 24 different resistance profiles. This study confirms that some of the guinea fowl samples collected from wet market were contaminated by Escherichia coli that were resistant to some antibiotics. Appropriate handling of guinea fowl meats and it related samples considering one health from processing and sale points are recommended to prevent the spread of foodborne infections.
Co-Authors Bawah , Juliana Depison Depison Md Noordin, Wan Norhana Mogre, Joshua Monten, Stephen K. Kanten Nurul Huda Shunmugam, Nannthini Teye, Gabriel