Production, proximate and sensory analysis of canned fish in tucupi and jambu (Acmella oleracea) sauce
October 2023
The objective of the study was to develop canned fish with tucupi and jambu sauce from king weakfish, sardines and white mullet species. The elaborated products were submitted to sensorial, microbiological and centesimal analyses. The experimental design consisted of three treatments and five replications; 15 containers were processed at 121°C for 15 min. For sensory analysis, the 9-point hedonic scale was used....
Evaluation of thermosonication in the inactivation of lipoxygenase in hydrosoluble soy extract
September 2023
Hydrosoluble soy extract (HSE) is nutritious and highly perishable, requiring it to be submitted to an adequate conservation method. Ultrasound combined with heat (thermosonication) can be an alternative capable of reducing the undesirable effects caused by the conventional thermal treatment in this product. The objective of this work was to evaluate the effect of thermosonication on the inactivation of the enzyme...
Compliance with food safety standards by beef vendors at butcheries in Kamuli district, Uganda
September 2023
Butcheries are the leading retailers of beef in Uganda and their level of compliance with food safety standards is unknown. The aim of this study was to determine the compliance by beef vendors in Kamuli district with the US 736:2019 standard for hygienic requirements for butcheries. A survey questionnaire and observation checklist on sanitation, hygiene, and beef handling were used to collect data from 60 butcheries....
Impacts of covid-19 measures on supply and distribution of milk on small-scale processors in Nakuru, Uasin Gishu, and Nyandarua Counties, Kenya
September 2023
COVID-19 poses serious threats to humanity and the world’s economy, leading to disruptions of the food supply chain. The dairy processing industry was highly affected because of the perishability of its products and time-sensitivity of both the supply and distribution chain. The study therefore, aimed to assess the effects of COVID-19 containment measures on the supply and distribution of small-scale dairy...
Feeding practices and nutrition status of children aged 0-59 months from Njombe and Geita, Tanzania
August 2023
This study aimed to assess infant and young child feeding (IYCF) practices, child nutrition status, and their variations within ethnic groups in regions with high prevalence rates of stunting. A cross-sectional study was conducted on a sample of 150 mother-child pairs that were randomly selected within regions of high stunting rates (Njombe and Geita) in Tanzania. Socio-demographic, IYCF practices, and anthropometric...
Physicochemical and nutritional characteristics of bee pollen from Burkina Faso
August 2023
This prospective study consisted in determining the physico-chemical and nutritional composition of the pollen produced in different localities of Burkina Faso. The main constituents were determined by standard methods. The results show a mass proportion (g/100 g) of dry matter between 17.15 ± 3.69 to 34.65 ± 5.05 for proteins, 43.93 ± 2.05 to 59.11 ± 5, 05 for carbohydrates, 5.29 ±...
Consumption of discretionary salt and bouillon in Senegalese households and related knowledge, attitudes and practices
August 2023
Excessive salt intake is associated with high blood pressure, a major risk factor of cardiovascular diseases. The World Health Organization has set a target of 30% reduction in population salt intake by 2020 to contain the prevalence of high blood pressure (HBP). The aim of the study was to measure the consumption of discretionary salt and bouillon in rural and urban Senegalese households. A cross-sectional descriptive...
Quantification of ethanol and identification of other chemical constituents in homemade morula beer using gas chromatography-mass spectrometry (GC-MS)
July 2023
Morula (Sclerocarya birrea) beer is a seasonal homemade alcoholic beverage made from morula fruits pulp. Unlike the commercial morula alcoholic beverage, the alcohol content of homemade morula beer is not known. The major challenges with homemade alcoholic beverages arise from batch-to-batch differences in product quality and safety due to the variability of raw materials and lack of quality control. Consequently, the...
Studying the ethylic fermentation process of the mucilage juice of cacao by Saccharomyces cerevisiae yeast
July 2023
The aim of the study was to optimize the ethylic fermentation process of the mucilage juice of cacao by Saccharomyces cerevisiae yeast. The juice fermentation process was effected by inoculating S. cerevisiae on 0.2 g of activated yeast/liter of juice for essay E1, and on 0.5 g of activated yeast/L for essay E2. Results reveal that increasing the pH value of the process effected in the acidic zone raised the rate of the...
Fruit consumption and storage practices among rural households in Chamwino district, Dodoma, Tanzania
July 2023
Fruit consumption is still a challenge in many parts of Africa, and hence micronutrient deficiency continues to be a serious problem in the continent. This study was conducted between December 2017 and May 2018 in Chinoje and Mzula villages in Chamwino district, Dodoma to assess availability of fruit, consumption, storage practices and nutrient content. People responsible for food preparation were interviewed from 345...
Nutritional evaluation of flour obtained from Tacca leontopetaloides used as an alternative food in Muanza-Mozambique
June 2023
Tubers from wild Tacca leontopetaloides plants are frequently used as a food commodity, but when consumed raw it has a bitter taste and can be toxic, thus threatening food security. This study aimed to evaluate the nutritional composition of flour from T. leontopetaloides subjected to distinct washing treatments, hoping to improve its suitability as a pivot food commodity in regions affected by poverty and food...
Influence of extrusion process conditions on bulk density, water absorption capacity and oil absorption capacity of extruded aerial yam-soybean flour mixture
June 2023
The influence of extrusion factors on bulk density, water absorption capacity, and oil absorption capacity of aerial yam-soybean flour mixture was examined utilizing a research facility scale single-screw extruder with the flour blending proportion of 25% aerial yam: 75% soybean. Response surface strategy in light of Box-Behken plan at three factors, five levels of barrel temperature (95, 100, 105, 110, and115?), screw...
Higher amounts of proximate and minerals in composite biscuit made from African locust beans pulp
June 2023
Food insecurity (FI) is still endemic in most parts of Low and Middle Income Countries (LMICs), including Ghana. This study was a quasi-experimental design carried out in the Wa Municipality. We assessed the proximate and minerals in African locust fruit pulp (Parkia biglobosa) and biscuits made from composite flours. We also did sensory evaluation on the formulated biscuits. We also assessed the acceptability of...
Implementation of the school feeding and nutrition programmes in Uganda and the contribution of school meals to recommended dietary allowances (RDAs) of children: Challenges and opportunities
May 2023
School going children face a complicated period of growth and development, remarkably affecting their health and productivity. School feeding programmes were assessed using three levels of assessment based on guidelines of school feeding and nutrition: (i) Conducting 11 key informant interviews, (ii) Conducting 45 focus group discussions and (iii) Using 24 h recall and food frequency questionnaires to evaluate the...
Evaluating the proximate chemical composition and sensory properties of composite bread from wheat and cocoyam flours
May 2023
The proximate chemical composition and organoleptic properties of composite bread formulated from cocoyam-wheat mix were determined. A control (AWB) consisting of 100% wheat flour was used, and cocoyam-composite loaves of bread (CBA, CBB, CBC and CBD) were prepared at 5, 15, 25 and 35% levels of substitution of wheat flour with cocoyam flour, respectively. The proximate compositions were determined using the AACC, while...
A comparative study of physical grain quality of saline tolerant, improved and imported rice varieties in The Gambia
April 2023
Rice is the main staple food for The Gambia. The country is conducive for adequate rice production, yet produces only 19% of the estimated 275, 000 MT need. The impacts of climate change such as flooding, salt intrusion and poor landscape design limit the availability of rice fields for production. This study compares the grain quality of six newly Improved rice salinity tolerant varieties (ISTV), nine improved local...
S.W.O.T. diagnosis of the production system of dried mango slices produced in the North of the Côte d'Ivoire
March 2023
The study aimed to characterize the production system of dried mango slices in Côte d'Ivoire. The objective was to assess the production environment of dried mango slices sold on the national and international markets. To do this, a non-participant observation and a semi-directive interview were carried out using an observation grid (description of the different production operations) and an interview guide...
Influence of processing methods on the sensory acceptability of products from selected hybrid plantains (Musa species AAB) cultivars
March 2023
High-yielding and disease-resistant hybrid plant cultivars recently developed by breeders need evaluation for end-use. This study evaluated the influence of processing methods on the sensory acceptability of products (plantain chips, fried ripe plantains called “dodo” in Nigeria, boiled unripe and ripe plantains, and "amala," a dough, as it is called in Nigeria when unripe and ripe plantain flour...
Production, consumption, processing and marketing of the baobab fruit (Adansonia digitata L.) in Kenya
February 2023
Parts of the baobab tree (Adansonia digitata L.) have been considered vital in addressing various nutritional needs and augmenting household incomes. However, limited utilization, processing, and marketing exist in developing countries like Kenya, despite the fruit pulp gaining mass interest overseas as a natural ingredient in various formulations. This study therefore aimed at assessing the status of production,...
Production practices of table salt by small-scale miners in Tanzania: A case study of Nkonkilangi, Singida, Tanzania
February 2023
In Tanzania, a small-scale salt enterprise supplies salt which is mainly consumed within the country. However, the producers often lack appropriate production knowledge. The purpose of this study was to assess salt processing and handling practices at Nkonkilangi village in Singida region, Tanzania. A cross-sectional study design was used to collect data. Scheduled interviews with 63 out of 100 producers were conducted...
Dietary habit, nutritional status and related factors among adolescents in Tamale Metropolis, Ghana
January 2023
Healthy eating during adolescence is a fundamental prerequisite for optimal physical growth, psychosocial and cognitive development and prevention of diet-related chronic diseases. This study assessed the dietary habit, nutritional status and associated factors among adolescents in Tamale metropolis, Ghana. An analytical cross-sectional survey of 402 adolescents was used in this study. Semi structured questionnaire was...
Use of cooking salt in school meal preparation and quality control practices among food vendors engaged in the national home-grown school feeding programme in Southwest Nigeria
January 2023
The study was aimed at investigating practice relating to use of cooking salt in school meal preparation and quality control practices among Food Vendors (FVs) engaged in National Home-Grown School Feeding Programme (NHGSFP) in public primary schools located in Oyo and Ogun States, Southwest Nigeria. An exploratory qualitative study was conducted among 40 selected FVs engaged in NHGSFP in the two States. Data were...
Increased antibacterial activity of Angelica koreana and Arnebia euchroma extracts fermented by Lactobacillus acidifarinae against methicillin-resistant Staphylococcus aureus
December 2022
The increasing epidemic of methicillin-resistant Staphylococcus aureus (MRSA), one of the most important hospital and community pathogens, has led to a demand for new agents to treat the infection. Natural products may be used to reduce this problem with low side effects. The objective of this study was to determine the antibacterial effect of fermented extracts of Angelica koreana and Arnebia euchroma by Lactobacillus...
Analysis of different extraction solvents: Influence on some properties of aerial yam (Dioscorea bulbifera) starch
December 2022
Starch was extracted from aerial yam (Dioscorea bulbifera) using water, sodium hydroxide, ammonium oxalate, and oxalic acid as extraction solvents, oven-dried at 45°C for 24 h, and milled to flour. The starch obtained was evaluated for yield, chemical and functional properties using standard procedures. The sensory attributes of the starch cooked pastes were also determined. Aerial yam extracted with oxalate gave...
Production of maize-soybean complementary foods fortified with crayfish, bonga fish and carrot flours rich in essential nutrients
December 2022
Blends of maize-soyabean complementary foods were fortified with foods rich in calcium, iron, zinc and vitamin A. Crayfish, bonga fish, and carrot that were processed into flours separately and blended in ratios (2:1:1 w/w) to produce food fortificant. Maize flour, soyabean flour and fortificant were mixed in the ratio of 70:30:0, 60:30:10 and 50:30:20 (% w/w dry basis), respectively to obtain three blends of...
Phytate degradation in composite wheat/cassava/sorghum bread: Effects of preincubation of Pichia kudriavzevii TY13 and presence of yeast extract
December 2022
Diet based on whole cereal flours is associated with a high prevalence of iron deficiency anemia and zinc deficiency in low/middle-income countries. Such flours contain high content of phytate that chelates minerals such as iron and zinc, making them unavailable for absorption by humans. To improve the mineral absorption, a phytate:iron molar ratio <1 and a phytate:zinc molar ratio <5 is needed to be achieved....
Fatty acid and amino acid profiling of chia seeds and physicochemical characterisation of chia seeds oil
November 2022
The study analysed the fatty and amino acid compositions of chia seeds and the physicochemical characterisation of chia seeds oil. The quantification of amino and fatty acids was done using high-performance liquid chromatography (HPLC) and gas chromatography equipped with a flame ionisation detector (GC-FID). The amino acids from chia seeds were leucine, valine, phenylalanine, lysine, isoleucine, threonine, histidine,...
Nutrient content of complementary foods for children in Kilimanjaro, Tanzania
November 2022
Complementary feeding is an effective strategy in reducing the levels of malnutrition among children aged 6-23 months. Little is known about the preparation and nutrient content of locally made complementary foods in Tanzania. This study was carried out with the aim of analysing nutrient content of the frequently used complementary foods for children of age 6 to 23 months. A cross-sectional study was conducted in three...
Phytochemical characteristics and consumer acceptability of watermelon (Citrullus lanatus) wine
November 2022
Wine, a fruit-based fermented and non-distilled product, containing most of the nutrients in the raw fruit. Wine production, particularly grape wine, is one of the oldest technologies in the history of man. Other fruits such as pineapple, have been used for wine production. The research was conducted to determine the phytochemical characteristics and consumer acceptability of watermelon wine produced using four...
Drying fish (Rastrineobola argentea) on the bank of Lake Victoria in a prototype solar-heated enclosure: Using renewable energy to reduce drying-time and improve product quality and value
November 2022
Silver cyprinids (Rastrineobola argentea) are small pelagic fish endemic to Lake Victoria. High-quality dried fish are an important protein-rich human food. This study was carried out to determine if it would be practical to use renewable energy to dry silver cyprinid. Drying is presently achieved by laying fish out in the sun on the ground or on racks. In the wet seasons, however, drying is compromised and much of the...
Microbial quality and visual appearance of traditional baobab fruit nectar during storage
October 2022
In Senegal, traditional baobab (Adansonia digitata L.) fruit nectar (T-BFN) is the most popular drink from baobab fruit pulp and its consumption helps to fight poverty, malnutrition and generate income along the Senegalese value chain of non-timbered forest products. However, for a better competitiveness in the local market, traditional baobab fruit nectar must be microbiologically stable with an attractive visual...
Optimization of fermentation and malting process of sorghum beverage and effects on nutritional quality
October 2022
Sorghum is a nutritious and under-utilized cereal whose potential in development of nutritious ready-to-drink beverages remains unexplored. The objective of the study was to optimize malting and fermentation conditions to obtain a nutritionally superior new sorghum product. Four beverage formulations containing sweetened sorghum malt extracts were developed through fermentation using kombucha culture at different...
Typology of Côte d'Ivoire dishes integrating Néré pulp (Parkia biglobosa L.) into the preparation process
October 2022
The Néré (Parkia biglobosa L.) is a tree of the Mimosaceae family, typical of the semi-arid and sub-humid zones of West Africa generally found in the northern of Côte d'Ivoire. The yellow pulp on the seeds of Néré is consumed raw or used for the preparation of drinks or enters into the composition of many cereal foods. The objective of the present study was to identify the dishes...
Effects of sweetpotato (Ipomoea batatas) puree on bread shelf-life
October 2022
Bioactive compounds in sweet potatoes of different flesh colors possessed potential antioxidant and antimicrobial properties important for human health and food quality. The objective of this study was to determine the levels of bioactive compounds and their inhibitory effects on mold fungi in bread. Composite bread was made by replacing 10, 20, 30 and 40% wheat flour with puree from the sweet potato of different flesh...
Effect of high hydrostatic pressure on the meat of collared peccaries (Tayassu tajacu) with different ages
September 2022
This study aimed to assess the effect of high hydrostatic pressure (HHP) applied in the post-rigor period, on the physical and chemical parameters of the meat (Longissimus thoracis et lumborum) of peccary (Tayassu tajacu) obtained from animals of different ages. Pressures ranged from 100 to 400 MPa were applied to the muscle of young (19 months) and adult (38 months) animals for the time required to reach the set...
Microbial safety and biodiversity of bacterial communities in traditional Egyptian cheese types
August 2022
In this study, 19 cheese samples from six common Egyptian cheese types were evaluated for microbiological safety and bacterial diversity using 16S rRNA gene amplicon sequencing analysis. Results showed that the total viable count exceeded 5.2 log CFU g-1 in 13 cheese samples. Further, the count of Enterobacteriaceae varied in the range 2.0 to 6.7 log CFU g-1 in 17 samples. PCR-based detection of pathogenic strains...
A comparative study of the use of radiation, lemon juice, and vinegar for the preparation and preservation of African giant snails (Achatina and Archachatina)
August 2022
African giant snail is a popular alternative source of animal protein in Ghana and many other countries. The meat is high in lean protein and mineral elements. Ready-to-use meat obtained from snails can compete with animal proteins found on the market. After shelling, snails produced some slime that interfered with preparation and processing of the meat. This study aimed to provide consumers with ready-to-use fresh...
Sieving fractionation, phenolics profile and in vivo antioxidant activities of Dichrostachys glomerata Forssk. powder
July 2022
Powder fractions of Dichrostachys glomerata were produced by drying the fruits to 10% moisture, grinding followed by sieving to differentiate powders of sizes <180, 180-212, 212-315 and ≥315 µm, respectively. The obtained powders were analysed for their phenolics profile and in vivo antioxidant activities in rats were evaluated. Lyophilized ethanolic extract and crude powder were used for comparison. The...
Waste-to-wealth; nutritional potential of five selected fruit peels and their health benefits: A review
July 2022
Waste-to-wealth is a notion describing the process of transforming waste, an end product to get rid of, into potential value-added products. The total global food waste is predicted to be approximately one third of the edible parts of food manufactured for human consumption, amounting to about 1 - 3 billion tonnes per year, which is equivalent to the total food production in sub-Saharan Africa; 842 million...
Effect of storage period and boiling time of fresh shea nuts on physico-chemical characteristics of kernels and butter
June 2022
Two traditional treatments for shea (Vitellaria paradoxa) butter processing namely storage of fresh nuts and duration of subsequent boiling were studied by using the response surface methodology (RSM) to determine best treatment. Experimental treatments influenced several kernel parameters, such as fat content (38-52% dw), redness (a* values between 6.3 and 11.7), and butter parameters, viz. yield (24 to 36% wet weight...
Effect of Citrus aurantifolia juice on bodyweight and haematological indices of wistar rats
June 2022
Citrus aurantifolia (Lime) is a citrus fruit and an excellent source of vitamin C and flavonoids which have unique antioxidant properties. This study determined the effects of C. aurantifolia on the bodyweight and hematological indices of rats. A total of 20 rats of both sex weighing between 120 and 130 g were randomized into 4 groups of five rats each and used. Group A: Normal Control; Group B: 2 ml/kg of C....
Optimization of antioxidant activity of aqueous and alcoholic extracts of cashew apple bagasse by mean of experimental design
June 2022
Cashew apple bagasse (CAB) constitutes waste in cashew apple conversion in juice industries. This study focused on modelling an optimal condition of antioxidant activity of CAB, in view of valuing it. The response surface methodology through a Box-Behnken design was used to evaluate the effects of three factors influencing antioxidant component extraction. The factors are ethanol proportion of solvent (X1),...
Knowledge, practices and intention to consume omega 3 and omega 6 fatty acids among pregnant and breastfeeding women in Morogoro Municipality, Tanzania
June 2022
Omega 3 and omega 6 fatty acids are beneficial throughout the human life cycle. With regard to early child development, maternal fatty acid status influence cognitive and psychomotor development of the unborn child. Regardless of their importance in early childhood development they still receive less attention when compared to other nutrients. This paper aimed to assess knowledge, practices and intention to consume...
Nutritional and physicochemical characterization of two products (jams and syrup) made from Antananarivo raketa fruits (Opuntia ficus-indica)
May 2022
The fruits of the prickly pear (raketa), like most fruits, are mainly made up of water, which limits their storage. The transformation of the fruits into jam or syrup allowed a longer preservation. As part of the valorization and conservation of food products in Madagascar, two products (jam and syrup) have been developed from raketa fruits. The present study focused on the nutritional characterization of raketa fruits...
Isolation and characterization of fungal strains from the seeds of Bambara groundnut (Vigna subterranea (L.) Verdcourt) produced in Burkina Faso
May 2022
Bambara groundnut is the main food legume after cowpea, especially in rural areas in Burkina Faso. Due to inappropriate production and storage conditions, the seeds are susceptible to contamination by several fungi. Therefore, the present study was conducted to isolate and identify the postharvest fungi associated with Bambara groundnut seeds produced in Burkina Faso. To do this, a total of 99 seed samples were...
Nutrient composition of selected seasonal food delicacies in Malawi
April 2022
Five locally available seasonal delicacies in Malawi were analysed for their nutrient content. The five delicacies included three insect types, one bird and a plant tuber. The proximate analysis using standard methods of analysis showed that Nomadacris septemdasciata (insect) has the highest protein content (69.78±2.0%) followed very closely by Passer difusus (bird) (67.59±1.2%). The protein content of the...
Food safety practices of cooked food hawkers in Tharaka Nithi County, Kenya
April 2022
Hawking of cooked foods is an important economic activity, especially for low-income earners. However, the trade raises public health concerns particularly due to the likely breaches of food safety standards. Thus, this study investigated the food safety practices of hawkers of cooked foods in Tharaka Nithi County. A cross-sectional study design was used to collect data from 151 respondents using a questionnaire. The...
Physicochemical and consumer acceptability of different particle-sized cassava strips
March 2022
This study was carried out to study the physicochemical and sensory characteristics of Abacha with different particle sizes. Dried cassava strips (Abacha) were produced in variable length, 2, 2.5 and 5 mm with the average length of 5 cm market size used as control. The proximate, physicochemical, functional and sensory properties were analyzed for various Abacha strips. The proximate composition of the Abacha chips...
Effects of charcoal kiln and microwave oven drying techniques on the chemical and thermal characteristics of tomato and yam slices
March 2022
Most drying equipment required constant electricity, which is rarely available in Sub-Saharan African countries for local farmers. In order to reduce postharvest loss, it is important to develop and use alternative equipment that is cheap and does not require electricity. The aim of this study was to compare the charcoal kiln oven and microwave oven on the drying characteristics of tomato and yam slices, as well as the...
Effect of chitosan coatings on quality and shelf-life of chicken and quail eggs
March 2022
In this study, chitosan-coatings were prepared with acetic, lactic, propionic, gallic and caffeic acids and used for coating chicken and quail eggs to understand their effect on the quality and shelf-life of chicken and quail eggs. Shelf-life study of (weight loss, Haugh unit, yolk index, albumen pH, mineral levels and shell breaking strength) the coating formulations were investigated for 4 weeks. All chitosan coated...
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